diff options
| author | Vsevolod Stakhov <vsevolod@highsecure.ru> | 2019-09-03 17:45:58 +0100 |
|---|---|---|
| committer | Vsevolod Stakhov <vsevolod@highsecure.ru> | 2019-09-03 17:45:58 +0100 |
| commit | 669cd52f685282289590200daed3fc89466e7206 (patch) | |
| tree | 792c26273dd54dab61b5e94693e1895ff9c5440c /contrib | |
| parent | 8a240656d8378ac20e4c4c3ae61d1a9c33488a20 (diff) | |
| download | rspamd-669cd52f685282289590200daed3fc89466e7206.tar.gz rspamd-669cd52f685282289590200daed3fc89466e7206.zip | |
[Rework] Replace linenoise with replxx
Source: https://github.com/AmokHuginnsson/replxx
Diffstat (limited to 'contrib')
32 files changed, 7542 insertions, 1305 deletions
diff --git a/contrib/linenoise/CMakeLists.txt b/contrib/linenoise/CMakeLists.txt deleted file mode 100644 index 8fc9ff843..000000000 --- a/contrib/linenoise/CMakeLists.txt +++ /dev/null @@ -1,10 +0,0 @@ -SET(LINENOISESRC linenoise.c) - -ADD_LIBRARY(rspamd-linenoise STATIC ${LINENOISESRC}) -SET_TARGET_PROPERTIES(rspamd-linenoise PROPERTIES VERSION ${RSPAMD_VERSION}) - -IF(ENABLE_FULL_DEBUG MATCHES "OFF") -if ("${CMAKE_C_COMPILER_ID}" STREQUAL "Clang" OR "${CMAKE_C_COMPILER_ID}" STREQUAL "GNU") - SET_TARGET_PROPERTIES(rspamd-linenoise PROPERTIES COMPILE_FLAGS "-O3") -endif () -ENDIF() diff --git a/contrib/linenoise/LICENSE b/contrib/linenoise/LICENSE deleted file mode 100644 index 18e814865..000000000 --- a/contrib/linenoise/LICENSE +++ /dev/null @@ -1,25 +0,0 @@ -Copyright (c) 2010-2014, Salvatore Sanfilippo <antirez at gmail dot com> -Copyright (c) 2010-2013, Pieter Noordhuis <pcnoordhuis at gmail dot com> - -All rights reserved. - -Redistribution and use in source and binary forms, with or without -modification, are permitted provided that the following conditions are met: - -* Redistributions of source code must retain the above copyright notice, - this list of conditions and the following disclaimer. - -* Redistributions in binary form must reproduce the above copyright notice, - this list of conditions and the following disclaimer in the documentation - and/or other materials provided with the distribution. - -THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND -ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED -WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE -DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR -ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES -(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; -LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON -ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS -SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/contrib/linenoise/linenoise.c b/contrib/linenoise/linenoise.c deleted file mode 100644 index 8e7ba9688..000000000 --- a/contrib/linenoise/linenoise.c +++ /dev/null @@ -1,1194 +0,0 @@ -/* linenoise.c -- guerrilla line editing library against the idea that a - * line editing lib needs to be 20,000 lines of C code. - * - * You can find the latest source code at: - * - * http://github.com/antirez/linenoise - * - * Does a number of crazy assumptions that happen to be true in 99.9999% of - * the 2010 UNIX computers around. - * - * ------------------------------------------------------------------------ - * - * Copyright (c) 2010-2016, Salvatore Sanfilippo <antirez at gmail dot com> - * Copyright (c) 2010-2013, Pieter Noordhuis <pcnoordhuis at gmail dot com> - * - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * ------------------------------------------------------------------------ - * - * References: - * - http://invisible-island.net/xterm/ctlseqs/ctlseqs.html - * - http://www.3waylabs.com/nw/WWW/products/wizcon/vt220.html - * - * Todo list: - * - Filter bogus Ctrl+<char> combinations. - * - Win32 support - * - * Bloat: - * - History search like Ctrl+r in readline? - * - * List of escape sequences used by this program, we do everything just - * with three sequences. In order to be so cheap we may have some - * flickering effect with some slow terminal, but the lesser sequences - * the more compatible. - * - * EL (Erase Line) - * Sequence: ESC [ n K - * Effect: if n is 0 or missing, clear from cursor to end of line - * Effect: if n is 1, clear from beginning of line to cursor - * Effect: if n is 2, clear entire line - * - * CUF (CUrsor Forward) - * Sequence: ESC [ n C - * Effect: moves cursor forward n chars - * - * CUB (CUrsor Backward) - * Sequence: ESC [ n D - * Effect: moves cursor backward n chars - * - * The following is used to get the terminal width if getting - * the width with the TIOCGWINSZ ioctl fails - * - * DSR (Device Status Report) - * Sequence: ESC [ 6 n - * Effect: reports the current cusor position as ESC [ n ; m R - * where n is the row and m is the column - * - * When multi line mode is enabled, we also use an additional escape - * sequence. However multi line editing is disabled by default. - * - * CUU (Cursor Up) - * Sequence: ESC [ n A - * Effect: moves cursor up of n chars. - * - * CUD (Cursor Down) - * Sequence: ESC [ n B - * Effect: moves cursor down of n chars. - * - * When linenoiseClearScreen() is called, two additional escape sequences - * are used in order to clear the screen and position the cursor at home - * position. - * - * CUP (Cursor position) - * Sequence: ESC [ H - * Effect: moves the cursor to upper left corner - * - * ED (Erase display) - * Sequence: ESC [ 2 J - * Effect: clear the whole screen - * - */ - -#include <termios.h> -#include <unistd.h> -#include <stdlib.h> -#include <stdio.h> -#include <errno.h> -#include <string.h> -#include <stdlib.h> -#include <ctype.h> -#include <sys/types.h> -#include <sys/ioctl.h> -#include <unistd.h> -#include "linenoise.h" - -#define LINENOISE_DEFAULT_HISTORY_MAX_LEN 100 -#define LINENOISE_MAX_LINE 4096 -static char *unsupported_term[] = {"dumb","cons25","emacs",NULL}; -static linenoiseCompletionCallback *completionCallback = NULL; -static linenoiseHintsCallback *hintsCallback = NULL; -static linenoiseFreeHintsCallback *freeHintsCallback = NULL; - -static struct termios orig_termios; /* In order to restore at exit.*/ -static int rawmode = 0; /* For atexit() function to check if restore is needed*/ -static int mlmode = 0; /* Multi line mode. Default is single line. */ -static int atexit_registered = 0; /* Register atexit just 1 time. */ -static int history_max_len = LINENOISE_DEFAULT_HISTORY_MAX_LEN; -static int history_len = 0; -static char **history = NULL; - -/* The linenoiseState structure represents the state during line editing. - * We pass this state to functions implementing specific editing - * functionalities. */ -struct linenoiseState { - int ifd; /* Terminal stdin file descriptor. */ - int ofd; /* Terminal stdout file descriptor. */ - char *buf; /* Edited line buffer. */ - size_t buflen; /* Edited line buffer size. */ - const char *prompt; /* Prompt to display. */ - size_t plen; /* Prompt length. */ - size_t pos; /* Current cursor position. */ - size_t oldpos; /* Previous refresh cursor position. */ - size_t len; /* Current edited line length. */ - size_t cols; /* Number of columns in terminal. */ - size_t maxrows; /* Maximum num of rows used so far (multiline mode) */ - int history_index; /* The history index we are currently editing. */ -}; - -enum KEY_ACTION{ - KEY_NULL = 0, /* NULL */ - CTRL_A = 1, /* Ctrl+a */ - CTRL_B = 2, /* Ctrl-b */ - CTRL_C = 3, /* Ctrl-c */ - CTRL_D = 4, /* Ctrl-d */ - CTRL_E = 5, /* Ctrl-e */ - CTRL_F = 6, /* Ctrl-f */ - CTRL_H = 8, /* Ctrl-h */ - TAB = 9, /* Tab */ - CTRL_K = 11, /* Ctrl+k */ - CTRL_L = 12, /* Ctrl+l */ - ENTER = 13, /* Enter */ - CTRL_N = 14, /* Ctrl-n */ - CTRL_P = 16, /* Ctrl-p */ - CTRL_T = 20, /* Ctrl-t */ - CTRL_U = 21, /* Ctrl+u */ - CTRL_W = 23, /* Ctrl+w */ - ESC = 27, /* Escape */ - BACKSPACE = 127 /* Backspace */ -}; - -static void linenoiseAtExit(void); -int linenoiseHistoryAdd(const char *line); -static void refreshLine(struct linenoiseState *l); - -/* Debugging macro. */ -#if 0 -FILE *lndebug_fp = NULL; -#define lndebug(...) \ - do { \ - if (lndebug_fp == NULL) { \ - lndebug_fp = fopen("/tmp/lndebug.txt","a"); \ - fprintf(lndebug_fp, \ - "[%d %d %d] p: %d, rows: %d, rpos: %d, max: %d, oldmax: %d\n", \ - (int)l->len,(int)l->pos,(int)l->oldpos,plen,rows,rpos, \ - (int)l->maxrows,old_rows); \ - } \ - fprintf(lndebug_fp, ", " __VA_ARGS__); \ - fflush(lndebug_fp); \ - } while (0) -#else -#define lndebug(...) -#endif - -/* ======================= Low level terminal handling ====================== */ - -/* Set if to use or not the multi line mode. */ -void linenoiseSetMultiLine(int ml) { - mlmode = ml; -} - -/* Return true if the terminal name is in the list of terminals we know are - * not able to understand basic escape sequences. */ -static int isUnsupportedTerm(void) { - char *term = getenv("TERM"); - int j; - - if (term == NULL) return 0; - for (j = 0; unsupported_term[j]; j++) - if (!strcasecmp(term,unsupported_term[j])) return 1; - return 0; -} - -/* Raw mode: 1960 magic shit. */ -static int enableRawMode(int fd) { - struct termios raw; - - if (!isatty(STDIN_FILENO)) goto fatal; - if (!atexit_registered) { - atexit(linenoiseAtExit); - atexit_registered = 1; - } - if (tcgetattr(fd,&orig_termios) == -1) goto fatal; - - raw = orig_termios; /* modify the original mode */ - /* input modes: no break, no CR to NL, no parity check, no strip char, - * no start/stop output control. */ - raw.c_iflag &= ~(BRKINT | ICRNL | INPCK | ISTRIP | IXON); - /* output modes - disable post processing */ - raw.c_oflag &= ~(OPOST); - /* control modes - set 8 bit chars */ - raw.c_cflag |= (CS8); - /* local modes - choing off, canonical off, no extended functions, - * no signal chars (^Z,^C) */ - raw.c_lflag &= ~(ECHO | ICANON | IEXTEN | ISIG); - /* control chars - set return condition: min number of bytes and timer. - * We want read to return every single byte, without timeout. */ - raw.c_cc[VMIN] = 1; raw.c_cc[VTIME] = 0; /* 1 byte, no timer */ - - /* put terminal in raw mode after flushing */ - if (tcsetattr(fd,TCSAFLUSH,&raw) < 0) goto fatal; - rawmode = 1; - return 0; - -fatal: - errno = ENOTTY; - return -1; -} - -static void disableRawMode(int fd) { - /* Don't even check the return value as it's too late. */ - if (rawmode && tcsetattr(fd,TCSAFLUSH,&orig_termios) != -1) - rawmode = 0; -} - -/* Use the ESC [6n escape sequence to query the horizontal cursor position - * and return it. On error -1 is returned, on success the position of the - * cursor. */ -static int getCursorPosition(int ifd, int ofd) { - char buf[32]; - int cols, rows; - unsigned int i = 0; - - /* Report cursor location */ - if (write(ofd, "\x1b[6n", 4) != 4) return -1; - - /* Read the response: ESC [ rows ; cols R */ - while (i < sizeof(buf)-1) { - if (read(ifd,buf+i,1) != 1) break; - if (buf[i] == 'R') break; - i++; - } - buf[i] = '\0'; - - /* Parse it. */ - if (buf[0] != ESC || buf[1] != '[') return -1; - if (sscanf(buf+2,"%d;%d",&rows,&cols) != 2) return -1; - return cols; -} - -/* Try to get the number of columns in the current terminal, or assume 80 - * if it fails. */ -int linenoiseGetColumns(int ifd, int ofd) { - struct winsize ws; - - if (ioctl(1, TIOCGWINSZ, &ws) == -1 || ws.ws_col == 0) { - /* ioctl() failed. Try to query the terminal itself. */ - int start, cols; - - /* Get the initial position so we can restore it later. */ - start = getCursorPosition(ifd,ofd); - if (start == -1) goto failed; - - /* Go to right margin and get position. */ - if (write(ofd,"\x1b[999C",6) != 6) goto failed; - cols = getCursorPosition(ifd,ofd); - if (cols == -1) goto failed; - - /* Restore position. */ - if (cols > start) { - char seq[32]; - snprintf(seq,32,"\x1b[%dD",cols-start); - if (write(ofd,seq,strlen(seq)) == -1) { - /* Can't recover... */ - } - } - return cols; - } else { - return ws.ws_col; - } - -failed: - return 80; -} - -/* Clear the screen. Used to handle ctrl+l */ -void linenoiseClearScreen(void) { - if (write(STDOUT_FILENO,"\x1b[H\x1b[2J",7) <= 0) { - /* nothing to do, just to avoid warning. */ - } -} - -/* Beep, used for completion when there is nothing to complete or when all - * the choices were already shown. */ -static void linenoiseBeep(void) { - fprintf(stderr, "\x7"); - fflush(stderr); -} - -/* ============================== Completion ================================ */ - -/* Free a list of completion option populated by linenoiseAddCompletion(). */ -static void freeCompletions(linenoiseCompletions *lc) { - size_t i; - for (i = 0; i < lc->len; i++) - free(lc->cvec[i]); - if (lc->cvec != NULL) - free(lc->cvec); -} - -/* This is an helper function for linenoiseEdit() and is called when the - * user types the <tab> key in order to complete the string currently in the - * input. - * - * The state of the editing is encapsulated into the pointed linenoiseState - * structure as described in the structure definition. */ -static int completeLine(struct linenoiseState *ls) { - linenoiseCompletions lc = { 0, NULL }; - int nread, nwritten; - char c = 0; - - completionCallback(ls->buf,&lc); - if (lc.len == 0) { - linenoiseBeep(); - } else { - size_t stop = 0, i = 0; - - while(!stop) { - /* Show completion or original buffer */ - if (i < lc.len) { - struct linenoiseState saved = *ls; - - ls->len = ls->pos = strlen(lc.cvec[i]); - ls->buf = lc.cvec[i]; - refreshLine(ls); - ls->len = saved.len; - ls->pos = saved.pos; - ls->buf = saved.buf; - } else { - refreshLine(ls); - } - - nread = read(ls->ifd,&c,1); - if (nread <= 0) { - freeCompletions(&lc); - return -1; - } - - switch(c) { - case 9: /* tab */ - i = (i+1) % (lc.len+1); - if (i == lc.len) linenoiseBeep(); - break; - case 27: /* escape */ - /* Re-show original buffer */ - if (i < lc.len) refreshLine(ls); - stop = 1; - break; - default: - /* Update buffer and return */ - if (i < lc.len) { - nwritten = snprintf(ls->buf,ls->buflen,"%s",lc.cvec[i]); - ls->len = ls->pos = nwritten; - } - stop = 1; - break; - } - } - } - - freeCompletions(&lc); - return c; /* Return last read character */ -} - -/* Register a callback function to be called for tab-completion. */ -void linenoiseSetCompletionCallback(linenoiseCompletionCallback *fn) { - completionCallback = fn; -} - -/* Register a hits function to be called to show hits to the user at the - * right of the prompt. */ -void linenoiseSetHintsCallback(linenoiseHintsCallback *fn) { - hintsCallback = fn; -} - -/* Register a function to free the hints returned by the hints callback - * registered with linenoiseSetHintsCallback(). */ -void linenoiseSetFreeHintsCallback(linenoiseFreeHintsCallback *fn) { - freeHintsCallback = fn; -} - -/* This function is used by the callback function registered by the user - * in order to add completion options given the input string when the - * user typed <tab>. See the example.c source code for a very easy to - * understand example. */ -void linenoiseAddCompletion(linenoiseCompletions *lc, const char *str) { - size_t len = strlen(str); - char *copy, **cvec; - - copy = malloc(len+1); - if (copy == NULL) return; - memcpy(copy,str,len+1); - cvec = realloc(lc->cvec,sizeof(char*)*(lc->len+1)); - if (cvec == NULL) { - free(copy); - return; - } - lc->cvec = cvec; - lc->cvec[lc->len++] = copy; -} - -/* =========================== Line editing ================================= */ - -/* We define a very simple "append buffer" structure, that is an heap - * allocated string where we can append to. This is useful in order to - * write all the escape sequences in a buffer and flush them to the standard - * output in a single call, to avoid flickering effects. */ -struct abuf { - char *b; - int len; -}; - -static void abInit(struct abuf *ab) { - ab->b = NULL; - ab->len = 0; -} - -static void abAppend(struct abuf *ab, const char *s, int len) { - char *new = realloc(ab->b,ab->len+len); - - if (new == NULL) return; - memcpy(new+ab->len,s,len); - ab->b = new; - ab->len += len; -} - -static void abFree(struct abuf *ab) { - free(ab->b); -} - -/* Helper of refreshSingleLine() and refreshMultiLine() to show hints - * to the right of the prompt. */ -void refreshShowHints(struct abuf *ab, struct linenoiseState *l, int plen) { - char seq[64]; - if (hintsCallback && plen+l->len < l->cols) { - int color = -1, bold = 0; - char *hint = hintsCallback(l->buf,&color,&bold); - if (hint) { - int hintlen = strlen(hint); - int hintmaxlen = l->cols-(plen+l->len); - if (hintlen > hintmaxlen) hintlen = hintmaxlen; - if (bold == 1 && color == -1) color = 37; - if (color != -1 || bold != 0) - snprintf(seq,64,"\033[%d;%d;49m",bold,color); - abAppend(ab,seq,strlen(seq)); - abAppend(ab,hint,hintlen); - if (color != -1 || bold != 0) - abAppend(ab,"\033[0m",4); - /* Call the function to free the hint returned. */ - if (freeHintsCallback) freeHintsCallback(hint); - } - } -} - -/* Single line low level line refresh. - * - * Rewrite the currently edited line accordingly to the buffer content, - * cursor position, and number of columns of the terminal. */ -static void refreshSingleLine(struct linenoiseState *l) { - char seq[64]; - size_t plen = strlen(l->prompt); - int fd = l->ofd; - char *buf = l->buf; - size_t len = l->len; - size_t pos = l->pos; - struct abuf ab; - - while((plen+pos) >= l->cols) { - buf++; - len--; - pos--; - } - while (plen+len > l->cols) { - len--; - } - - abInit(&ab); - /* Cursor to left edge */ - snprintf(seq,64,"\r"); - abAppend(&ab,seq,strlen(seq)); - /* Write the prompt and the current buffer content */ - abAppend(&ab,l->prompt,strlen(l->prompt)); - abAppend(&ab,buf,len); - /* Show hits if any. */ - refreshShowHints(&ab,l,plen); - /* Erase to right */ - snprintf(seq,64,"\x1b[0K"); - abAppend(&ab,seq,strlen(seq)); - /* Move cursor to original position. */ - snprintf(seq,64,"\r\x1b[%dC", (int)(pos+plen)); - abAppend(&ab,seq,strlen(seq)); - if (write(fd,ab.b,ab.len) == -1) {} /* Can't recover from write error. */ - abFree(&ab); -} - -/* Multi line low level line refresh. - * - * Rewrite the currently edited line accordingly to the buffer content, - * cursor position, and number of columns of the terminal. */ -static void refreshMultiLine(struct linenoiseState *l) { - char seq[64]; - int plen = strlen(l->prompt); - int rows = (plen+l->len+l->cols-1)/l->cols; /* rows used by current buf. */ - int rpos = (plen+l->oldpos+l->cols)/l->cols; /* cursor relative row. */ - int rpos2; /* rpos after refresh. */ - int col; /* colum position, zero-based. */ - int old_rows = l->maxrows; - int fd = l->ofd, j; - struct abuf ab; - - /* Update maxrows if needed. */ - if (rows > (int)l->maxrows) l->maxrows = rows; - - /* First step: clear all the lines used before. To do so start by - * going to the last row. */ - abInit(&ab); - if (old_rows-rpos > 0) { - lndebug("go down %d", old_rows-rpos); - snprintf(seq,64,"\x1b[%dB", old_rows-rpos); - abAppend(&ab,seq,strlen(seq)); - } - - /* Now for every row clear it, go up. */ - for (j = 0; j < old_rows-1; j++) { - lndebug("clear+up"); - snprintf(seq,64,"\r\x1b[0K\x1b[1A"); - abAppend(&ab,seq,strlen(seq)); - } - - /* Clean the top line. */ - lndebug("clear"); - snprintf(seq,64,"\r\x1b[0K"); - abAppend(&ab,seq,strlen(seq)); - - /* Write the prompt and the current buffer content */ - abAppend(&ab,l->prompt,strlen(l->prompt)); - abAppend(&ab,l->buf,l->len); - - /* Show hits if any. */ - refreshShowHints(&ab,l,plen); - - /* If we are at the very end of the screen with our prompt, we need to - * emit a newline and move the prompt to the first column. */ - if (l->pos && - l->pos == l->len && - (l->pos+plen) % l->cols == 0) - { - lndebug("<newline>"); - abAppend(&ab,"\n",1); - snprintf(seq,64,"\r"); - abAppend(&ab,seq,strlen(seq)); - rows++; - if (rows > (int)l->maxrows) l->maxrows = rows; - } - - /* Move cursor to right position. */ - rpos2 = (plen+l->pos+l->cols)/l->cols; /* current cursor relative row. */ - lndebug("rpos2 %d", rpos2); - - /* Go up till we reach the expected positon. */ - if (rows-rpos2 > 0) { - lndebug("go-up %d", rows-rpos2); - snprintf(seq,64,"\x1b[%dA", rows-rpos2); - abAppend(&ab,seq,strlen(seq)); - } - - /* Set column. */ - col = (plen+(int)l->pos) % (int)l->cols; - lndebug("set col %d", 1+col); - if (col) - snprintf(seq,64,"\r\x1b[%dC", col); - else - snprintf(seq,64,"\r"); - abAppend(&ab,seq,strlen(seq)); - - lndebug("\n"); - l->oldpos = l->pos; - - if (write(fd,ab.b,ab.len) == -1) {} /* Can't recover from write error. */ - abFree(&ab); -} - -/* Calls the two low level functions refreshSingleLine() or - * refreshMultiLine() according to the selected mode. */ -static void refreshLine(struct linenoiseState *l) { - if (mlmode) - refreshMultiLine(l); - else - refreshSingleLine(l); -} - -/* Insert the character 'c' at cursor current position. - * - * On error writing to the terminal -1 is returned, otherwise 0. */ -int linenoiseEditInsert(struct linenoiseState *l, char c) { - if (l->len < l->buflen) { - if (l->len == l->pos) { - l->buf[l->pos] = c; - l->pos++; - l->len++; - l->buf[l->len] = '\0'; - if ((!mlmode && l->plen+l->len < l->cols && !hintsCallback)) { - /* Avoid a full update of the line in the - * trivial case. */ - if (write(l->ofd,&c,1) == -1) return -1; - } else { - refreshLine(l); - } - } else { - memmove(l->buf+l->pos+1,l->buf+l->pos,l->len-l->pos); - l->buf[l->pos] = c; - l->len++; - l->pos++; - l->buf[l->len] = '\0'; - refreshLine(l); - } - } - return 0; -} - -/* Move cursor on the left. */ -void linenoiseEditMoveLeft(struct linenoiseState *l) { - if (l->pos > 0) { - l->pos--; - refreshLine(l); - } -} - -/* Move cursor on the right. */ -void linenoiseEditMoveRight(struct linenoiseState *l) { - if (l->pos != l->len) { - l->pos++; - refreshLine(l); - } -} - -/* Move cursor to the start of the line. */ -void linenoiseEditMoveHome(struct linenoiseState *l) { - if (l->pos != 0) { - l->pos = 0; - refreshLine(l); - } -} - -/* Move cursor to the end of the line. */ -void linenoiseEditMoveEnd(struct linenoiseState *l) { - if (l->pos != l->len) { - l->pos = l->len; - refreshLine(l); - } -} - -/* Substitute the currently edited line with the next or previous history - * entry as specified by 'dir'. */ -#define LINENOISE_HISTORY_NEXT 0 -#define LINENOISE_HISTORY_PREV 1 -void linenoiseEditHistoryNext(struct linenoiseState *l, int dir) { - if (history_len > 1) { - /* Update the current history entry before to - * overwrite it with the next one. */ - free(history[history_len - 1 - l->history_index]); - history[history_len - 1 - l->history_index] = strdup(l->buf); - /* Show the new entry */ - l->history_index += (dir == LINENOISE_HISTORY_PREV) ? 1 : -1; - if (l->history_index < 0) { - l->history_index = 0; - return; - } else if (l->history_index >= history_len) { - l->history_index = history_len-1; - return; - } - strncpy(l->buf,history[history_len - 1 - l->history_index],l->buflen); - l->buf[l->buflen-1] = '\0'; - l->len = l->pos = strlen(l->buf); - refreshLine(l); - } -} - -/* Delete the character at the right of the cursor without altering the cursor - * position. Basically this is what happens with the "Delete" keyboard key. */ -void linenoiseEditDelete(struct linenoiseState *l) { - if (l->len > 0 && l->pos < l->len) { - memmove(l->buf+l->pos,l->buf+l->pos+1,l->len-l->pos-1); - l->len--; - l->buf[l->len] = '\0'; - refreshLine(l); - } -} - -/* Backspace implementation. */ -void linenoiseEditBackspace(struct linenoiseState *l) { - if (l->pos > 0 && l->len > 0) { - memmove(l->buf+l->pos-1,l->buf+l->pos,l->len-l->pos); - l->pos--; - l->len--; - l->buf[l->len] = '\0'; - refreshLine(l); - } -} - -/* Delete the previosu word, maintaining the cursor at the start of the - * current word. */ -void linenoiseEditDeletePrevWord(struct linenoiseState *l) { - size_t old_pos = l->pos; - size_t diff; - - while (l->pos > 0 && l->buf[l->pos-1] == ' ') - l->pos--; - while (l->pos > 0 && l->buf[l->pos-1] != ' ') - l->pos--; - diff = old_pos - l->pos; - memmove(l->buf+l->pos,l->buf+old_pos,l->len-old_pos+1); - l->len -= diff; - refreshLine(l); -} - -/* This function is the core of the line editing capability of linenoise. - * It expects 'fd' to be already in "raw mode" so that every key pressed - * will be returned ASAP to read(). - * - * The resulting string is put into 'buf' when the user type enter, or - * when ctrl+d is typed. - * - * The function returns the length of the current buffer. */ -static int linenoiseEdit(int stdin_fd, int stdout_fd, char *buf, size_t buflen, const char *prompt) -{ - struct linenoiseState l; - - /* Populate the linenoise state that we pass to functions implementing - * specific editing functionalities. */ - l.ifd = stdin_fd; - l.ofd = stdout_fd; - l.buf = buf; - l.buflen = buflen; - l.prompt = prompt; - l.plen = strlen(prompt); - l.oldpos = l.pos = 0; - l.len = 0; - l.cols = linenoiseGetColumns(stdin_fd, stdout_fd); - l.maxrows = 0; - l.history_index = 0; - - /* Buffer starts empty. */ - l.buf[0] = '\0'; - l.buflen--; /* Make sure there is always space for the nulterm */ - - /* The latest history entry is always our current buffer, that - * initially is just an empty string. */ - linenoiseHistoryAdd(""); - - if (write(l.ofd,prompt,l.plen) == -1) return -1; - while(1) { - char c; - int nread; - char seq[3]; - - nread = read(l.ifd,&c,1); - if (nread <= 0) return l.len; - - /* Only autocomplete when the callback is set. It returns < 0 when - * there was an error reading from fd. Otherwise it will return the - * character that should be handled next. */ - if (c == 9 && completionCallback != NULL) { - c = completeLine(&l); - /* Return on errors */ - if (c < 0) return l.len; - /* Read next character when 0 */ - if (c == 0) continue; - } - - switch(c) { - case ENTER: /* enter */ - history_len--; - free(history[history_len]); - if (mlmode) linenoiseEditMoveEnd(&l); - if (hintsCallback) { - /* Force a refresh without hints to leave the previous - * line as the user typed it after a newline. */ - linenoiseHintsCallback *hc = hintsCallback; - hintsCallback = NULL; - refreshLine(&l); - hintsCallback = hc; - } - return (int)l.len; - case CTRL_C: /* ctrl-c */ - errno = EAGAIN; - return -1; - case BACKSPACE: /* backspace */ - case 8: /* ctrl-h */ - linenoiseEditBackspace(&l); - break; - case CTRL_D: /* ctrl-d, remove char at right of cursor, or if the - line is empty, act as end-of-file. */ - if (l.len > 0) { - linenoiseEditDelete(&l); - } else { - history_len--; - free(history[history_len]); - return -1; - } - break; - case CTRL_T: /* ctrl-t, swaps current character with previous. */ - if (l.pos > 0 && l.pos < l.len) { - int aux = buf[l.pos-1]; - buf[l.pos-1] = buf[l.pos]; - buf[l.pos] = aux; - if (l.pos != l.len-1) l.pos++; - refreshLine(&l); - } - break; - case CTRL_B: /* ctrl-b */ - linenoiseEditMoveLeft(&l); - break; - case CTRL_F: /* ctrl-f */ - linenoiseEditMoveRight(&l); - break; - case CTRL_P: /* ctrl-p */ - linenoiseEditHistoryNext(&l, LINENOISE_HISTORY_PREV); - break; - case CTRL_N: /* ctrl-n */ - linenoiseEditHistoryNext(&l, LINENOISE_HISTORY_NEXT); - break; - case ESC: /* escape sequence */ - /* Read the next two bytes representing the escape sequence. - * Use two calls to handle slow terminals returning the two - * chars at different times. */ - if (read(l.ifd,seq,1) == -1) break; - if (read(l.ifd,seq+1,1) == -1) break; - - /* ESC [ sequences. */ - if (seq[0] == '[') { - if (seq[1] >= '0' && seq[1] <= '9') { - /* Extended escape, read additional byte. */ - if (read(l.ifd,seq+2,1) == -1) break; - if (seq[2] == '~') { - switch(seq[1]) { - case '3': /* Delete key. */ - linenoiseEditDelete(&l); - break; - } - } - } else { - switch(seq[1]) { - case 'A': /* Up */ - linenoiseEditHistoryNext(&l, LINENOISE_HISTORY_PREV); - break; - case 'B': /* Down */ - linenoiseEditHistoryNext(&l, LINENOISE_HISTORY_NEXT); - break; - case 'C': /* Right */ - linenoiseEditMoveRight(&l); - break; - case 'D': /* Left */ - linenoiseEditMoveLeft(&l); - break; - case 'H': /* Home */ - linenoiseEditMoveHome(&l); - break; - case 'F': /* End*/ - linenoiseEditMoveEnd(&l); - break; - } - } - } - - /* ESC O sequences. */ - else if (seq[0] == 'O') { - switch(seq[1]) { - case 'H': /* Home */ - linenoiseEditMoveHome(&l); - break; - case 'F': /* End*/ - linenoiseEditMoveEnd(&l); - break; - } - } - break; - default: - if (linenoiseEditInsert(&l,c)) return -1; - break; - case CTRL_U: /* Ctrl+u, delete the whole line. */ - buf[0] = '\0'; - l.pos = l.len = 0; - refreshLine(&l); - break; - case CTRL_K: /* Ctrl+k, delete from current to end of line. */ - buf[l.pos] = '\0'; - l.len = l.pos; - refreshLine(&l); - break; - case CTRL_A: /* Ctrl+a, go to the start of the line */ - linenoiseEditMoveHome(&l); - break; - case CTRL_E: /* ctrl+e, go to the end of the line */ - linenoiseEditMoveEnd(&l); - break; - case CTRL_L: /* ctrl+l, clear screen */ - linenoiseClearScreen(); - refreshLine(&l); - break; - case CTRL_W: /* ctrl+w, delete previous word */ - linenoiseEditDeletePrevWord(&l); - break; - } - } - return l.len; -} - -/* This special mode is used by linenoise in order to print scan codes - * on screen for debugging / development purposes. It is implemented - * by the linenoise_example program using the --keycodes option. */ -void linenoisePrintKeyCodes(void) { - char quit[4]; - - printf("Linenoise key codes debugging mode.\n" - "Press keys to see scan codes. Type 'quit' at any time to exit.\n"); - if (enableRawMode(STDIN_FILENO) == -1) return; - memset(quit,' ',4); - while(1) { - char c; - int nread; - - nread = read(STDIN_FILENO,&c,1); - if (nread <= 0) continue; - memmove(quit,quit+1,sizeof(quit)-1); /* shift string to left. */ - quit[sizeof(quit)-1] = c; /* Insert current char on the right. */ - if (memcmp(quit,"quit",sizeof(quit)) == 0) break; - - printf("'%c' %02x (%d) (type quit to exit)\n", - isprint(c) ? c : '?', (int)c, (int)c); - printf("\r"); /* Go left edge manually, we are in raw mode. */ - fflush(stdout); - } - disableRawMode(STDIN_FILENO); -} - -/* This function calls the line editing function linenoiseEdit() using - * the STDIN file descriptor set in raw mode. */ -static int linenoiseRaw(char *buf, size_t buflen, const char *prompt) { - int count; - - if (buflen == 0) { - errno = EINVAL; - return -1; - } - - if (enableRawMode(STDIN_FILENO) == -1) return -1; - count = linenoiseEdit(STDIN_FILENO, STDOUT_FILENO, buf, buflen, prompt); - disableRawMode(STDIN_FILENO); - printf("\n"); - return count; -} - -/* This function is called when linenoise() is called with the standard - * input file descriptor not attached to a TTY. So for example when the - * program using linenoise is called in pipe or with a file redirected - * to its standard input. In this case, we want to be able to return the - * line regardless of its length (by default we are limited to 4k). */ -static char *linenoiseNoTTY(void) { - char *line = NULL; - size_t len = 0, maxlen = 0; - - while(1) { - if (len == maxlen) { - if (maxlen == 0) maxlen = 16; - maxlen *= 2; - char *oldval = line; - line = realloc(line,maxlen); - if (line == NULL) { - if (oldval) free(oldval); - return NULL; - } - } - int c = fgetc(stdin); - if (c == EOF || c == '\n') { - if (c == EOF && len == 0) { - free(line); - return NULL; - } else { - line[len] = '\0'; - return line; - } - } else { - line[len] = c; - len++; - } - } -} - -/* The high level function that is the main API of the linenoise library. - * This function checks if the terminal has basic capabilities, just checking - * for a blacklist of stupid terminals, and later either calls the line - * editing function or uses dummy fgets() so that you will be able to type - * something even in the most desperate of the conditions. */ -char *linenoise(const char *prompt) { - char buf[LINENOISE_MAX_LINE]; - int count; - - if (!isatty(STDIN_FILENO)) { - /* Not a tty: read from file / pipe. In this mode we don't want any - * limit to the line size, so we call a function to handle that. */ - return linenoiseNoTTY(); - } else if (isUnsupportedTerm()) { - size_t len; - - printf("%s",prompt); - fflush(stdout); - if (fgets(buf,LINENOISE_MAX_LINE,stdin) == NULL) return NULL; - len = strlen(buf); - while(len && (buf[len-1] == '\n' || buf[len-1] == '\r')) { - len--; - buf[len] = '\0'; - } - return strdup(buf); - } else { - count = linenoiseRaw(buf,LINENOISE_MAX_LINE,prompt); - if (count == -1) return NULL; - return strdup(buf); - } -} - -/* This is just a wrapper the user may want to call in order to make sure - * the linenoise returned buffer is freed with the same allocator it was - * created with. Useful when the main program is using an alternative - * allocator. */ -void linenoiseFree(void *ptr) { - free(ptr); -} - -/* ================================ History ================================= */ - -/* Free the history, but does not reset it. Only used when we have to - * exit() to avoid memory leaks are reported by valgrind & co. */ -static void freeHistory(void) { - if (history) { - int j; - - for (j = 0; j < history_len; j++) - free(history[j]); - free(history); - } -} - -/* At exit we'll try to fix the terminal to the initial conditions. */ -static void linenoiseAtExit(void) { - disableRawMode(STDIN_FILENO); - freeHistory(); -} - -/* This is the API call to add a new entry in the linenoise history. - * It uses a fixed array of char pointers that are shifted (memmoved) - * when the history max length is reached in order to remove the older - * entry and make room for the new one, so it is not exactly suitable for huge - * histories, but will work well for a few hundred of entries. - * - * Using a circular buffer is smarter, but a bit more complex to handle. */ -int linenoiseHistoryAdd(const char *line) { - char *linecopy; - - if (history_max_len == 0) return 0; - - /* Initialization on first call. */ - if (history == NULL) { - history = malloc(sizeof(char*)*history_max_len); - if (history == NULL) return 0; - memset(history,0,(sizeof(char*)*history_max_len)); - } - - /* Don't add duplicated lines. */ - if (history_len && !strcmp(history[history_len-1], line)) return 0; - - /* Add an heap allocated copy of the line in the history. - * If we reached the max length, remove the older line. */ - linecopy = strdup(line); - if (!linecopy) return 0; - if (history_len == history_max_len) { - free(history[0]); - memmove(history,history+1,sizeof(char*)*(history_max_len-1)); - history_len--; - } - history[history_len] = linecopy; - history_len++; - return 1; -} - -/* Set the maximum length for the history. This function can be called even - * if there is already some history, the function will make sure to retain - * just the latest 'len' elements if the new history length value is smaller - * than the amount of items already inside the history. */ -int linenoiseHistorySetMaxLen(int len) { - char **new; - - if (len < 1) return 0; - if (history) { - int tocopy = history_len; - - new = malloc(sizeof(char*)*len); - if (new == NULL) return 0; - - /* If we can't copy everything, free the elements we'll not use. */ - if (len < tocopy) { - int j; - - for (j = 0; j < tocopy-len; j++) free(history[j]); - tocopy = len; - } - memset(new,0,sizeof(char*)*len); - memcpy(new,history+(history_len-tocopy), sizeof(char*)*tocopy); - free(history); - history = new; - } - history_max_len = len; - if (history_len > history_max_len) - history_len = history_max_len; - return 1; -} - -/* Save the history in the specified file. On success 0 is returned - * otherwise -1 is returned. */ -int linenoiseHistorySave(const char *filename) { - FILE *fp = fopen(filename,"w"); - int j; - - if (fp == NULL) return -1; - for (j = 0; j < history_len; j++) - fprintf(fp,"%s\n",history[j]); - fclose(fp); - return 0; -} - -/* Load the history from the specified file. If the file does not exist - * zero is returned and no operation is performed. - * - * If the file exists and the operation succeeded 0 is returned, otherwise - * on error -1 is returned. */ -int linenoiseHistoryLoad(const char *filename) { - FILE *fp = fopen(filename,"r"); - char buf[LINENOISE_MAX_LINE]; - - if (fp == NULL) return -1; - - while (fgets(buf,LINENOISE_MAX_LINE,fp) != NULL) { - char *p; - - p = strchr(buf,'\r'); - if (!p) p = strchr(buf,'\n'); - if (p) *p = '\0'; - linenoiseHistoryAdd(buf); - } - fclose(fp); - return 0; -} diff --git a/contrib/linenoise/linenoise.h b/contrib/linenoise/linenoise.h deleted file mode 100644 index ca855f0b1..000000000 --- a/contrib/linenoise/linenoise.h +++ /dev/null @@ -1,76 +0,0 @@ -/* linenoise.h -- VERSION 1.0 - * - * Guerrilla line editing library against the idea that a line editing lib - * needs to be 20,000 lines of C code. - * - * See linenoise.c for more information. - * - * ------------------------------------------------------------------------ - * - * Copyright (c) 2010-2014, Salvatore Sanfilippo <antirez at gmail dot com> - * Copyright (c) 2010-2013, Pieter Noordhuis <pcnoordhuis at gmail dot com> - * - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#ifndef __LINENOISE_H -#define __LINENOISE_H - -#ifdef __cplusplus -extern "C" { -#endif - -typedef struct linenoiseCompletions { - size_t len; - char **cvec; -} linenoiseCompletions; - -typedef void(linenoiseCompletionCallback)(const char *, linenoiseCompletions *); -typedef char*(linenoiseHintsCallback)(const char *, int *color, int *bold); -typedef void(linenoiseFreeHintsCallback)(void *); -void linenoiseSetCompletionCallback(linenoiseCompletionCallback *); -void linenoiseSetHintsCallback(linenoiseHintsCallback *); -void linenoiseSetFreeHintsCallback(linenoiseFreeHintsCallback *); -void linenoiseAddCompletion(linenoiseCompletions *, const char *); - -char *linenoise(const char *prompt); -void linenoiseFree(void *ptr); -int linenoiseHistoryAdd(const char *line); -int linenoiseHistorySetMaxLen(int len); -int linenoiseHistorySave(const char *filename); -int linenoiseHistoryLoad(const char *filename); -void linenoiseClearScreen(void); -void linenoiseSetMultiLine(int ml); -void linenoisePrintKeyCodes(void); - -/* Rspamd specific */ -int linenoiseGetColumns(int ifd, int ofd); - -#ifdef __cplusplus -} -#endif - -#endif /* __LINENOISE_H */ diff --git a/contrib/replxx/CMakeLists.txt b/contrib/replxx/CMakeLists.txt new file mode 100644 index 000000000..a2dcf2dd1 --- /dev/null +++ b/contrib/replxx/CMakeLists.txt @@ -0,0 +1,82 @@ +# -*- mode: CMAKE; -*- + +cmake_minimum_required(VERSION 3.0) + +project( replxx VERSION 0.0.2 LANGUAGES CXX C ) +message(STATUS "Build mode: ${CMAKE_BUILD_TYPE}") + +# INFO +set(REPLXX_DISPLAY_NAME "replxx") +set(REPLXX_URL_INFO_ABOUT "https://github.com/AmokHuginnsson/replxx") +set(REPLXX_CONTACT "amok@codestation.org") +set(REPLXX_FRIENDLY_STRING "replxx - Read Evaluate Print Loop library") + +# compiler options +if(CMAKE_COMPILER_IS_GNUCXX) + message(STATUS "Compiler type GNU: ${CMAKE_CXX_COMPILER}") + set(BASE_COMPILER_OPTIONS "-std=c++11 -Wall -D_GNU_SOURCE -pthread") + set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${BASE_COMPILER_OPTIONS}") + set(CMAKE_CXX_FLAGS_COVERAGE "${CMAKE_CXX_FLAGS} ${BASE_COMPILER_OPTIONS} -O0 --coverage -fno-inline -fno-default-inline -fno-inline-small-functions") + set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} ${BASE_COMPILER_OPTIONS} -O0 -g -ggdb -g3 -ggdb3") + set(CMAKE_CXX_FLAGS_MINSIZEREL "${CMAKE_CXX_FLAGS_MINSIZEREL} ${BASE_COMPILER_OPTIONS} -Os") + set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} ${BASE_COMPILER_OPTIONS} -O3 -fomit-frame-pointer") + set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS_RELWITHDEBINFO} ${BASE_COMPILER_OPTIONS} -O3 -g") + set(CMAKE_C_FLAGS "-std=c99") +elseif(CMAKE_COMPILER_IS_CLANGCXX OR CMAKE_CXX_COMPILER_ID MATCHES "Clang") + # using regular Clang or AppleClang + message(STATUS "Compiler type CLANG: ${CMAKE_CXX_COMPILER}") + set(BASE_COMPILER_OPTIONS "-std=c++11 -Wall -Wextra -D_GNU_SOURCE -pthread") + set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${BASE_COMPILER_OPTIONS}") + set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} ${BASE_COMPILER_OPTIONS} -O0 -g") + set(CMAKE_CXX_FLAGS_MINSIZEREL "${CMAKE_CXX_FLAGS_MINSIZEREL} ${BASE_COMPILER_OPTIONS} -Os") + set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} ${BASE_COMPILER_OPTIONS} -O3 -fomit-frame-pointer") + set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS_RELWITHDEBINFO} ${BASE_COMPILER_OPTIONS} -O3 -g") + set(CMAKE_C_FLAGS "-std=c99") +elseif(MSVC) + message(STATUS "Compiler type MSVC: ${CMAKE_CXX_COMPILER}") + add_definitions("-D_CRT_SECURE_NO_WARNINGS=1") + + set(CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG} /INCREMENTAL:NO /SUBSYSTEM:CONSOLE /LTCG /ignore:4099") + set(CMAKE_EXE_LINKER_FLAGS_MINSIZEREL "${CMAKE_EXE_LINKER_FLAGS_MINSIZEREL} /SUBSYSTEM:CONSOLE /ignore:4099") + set(CMAKE_EXE_LINKER_FLAGS_RELEASE "${CMAKE_EXE_LINKER_FLAGS_RELEASE} /SUBSYSTEM:CONSOLE /ignore:4099") + set(CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO "${CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO} /SUBSYSTEM:CONSOLE /ignore:4099") +else() + # unknown compiler + message(STATUS "Compiler type UNKNOWN: ${CMAKE_CXX_COMPILER}") + set(BASE_COMPILER_OPTIONS "-std=c++11 -Wall -pthread") + set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${BASE_COMPILER_OPTIONS}") + set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} ${BASE_COMPILER_OPTIONS} -O0 -g") + set(CMAKE_CXX_FLAGS_MINSIZEREL "${CMAKE_CXX_FLAGS_MINSIZEREL} ${BASE_COMPILER_OPTIONS} -Os") + set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} ${BASE_COMPILER_OPTIONS} -O3 -fomit-frame-pointer") + set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS_RELWITHDEBINFO} ${BASE_COMPILER_OPTIONS} -O3 -g") + set(CMAKE_C_FLAGS "-std=c99") +endif() + +# build libreplxx +set( + REPLXX_SOURCES + src/conversion.cxx + src/ConvertUTF.cpp + src/escape.cxx + src/history.cxx + src/replxx_impl.cxx + src/io.cxx + src/prompt.cxx + src/replxx.cxx + src/util.cxx + src/wcwidth.cpp + src/windows.cxx +) + +set(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS ON) +add_library(rspamd-replxx SHARED ${REPLXX_SOURCES}) + +target_include_directories( + rspamd-replxx + PUBLIC ${PROJECT_SOURCE_DIR}/include + PRIVATE ${PROJECT_SOURCE_DIR}/src +) +set( TARGETS ${TARGETS} rspamd-replxx ) +target_compile_definitions(rspamd-replxx PRIVATE REPLXX_BUILDING_DLL) + +install( TARGETS ${TARGETS} LIBRARY DESTINATION ${RSPAMD_LIBDIR})
\ No newline at end of file diff --git a/contrib/replxx/LICENSE.md b/contrib/replxx/LICENSE.md new file mode 100644 index 000000000..c73c3f241 --- /dev/null +++ b/contrib/replxx/LICENSE.md @@ -0,0 +1,63 @@ +Copyright (c) 2017-2018, Marcin Konarski (amok at codestation.org) +Copyright (c) 2010, Salvatore Sanfilippo (antirez at gmail dot com) +Copyright (c) 2010, Pieter Noordhuis (pcnoordhuis at gmail dot com) + +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + + * Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + * Neither the name of Redis nor the names of its contributors may be used + to endorse or promote products derived from this software without + specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" +AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE +LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR +CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF +SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) +ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +POSSIBILITY OF SUCH DAMAGE. + + +wcwidth.cpp +=========== + +Markus Kuhn -- 2007-05-26 (Unicode 5.0) + +Permission to use, copy, modify, and distribute this software +for any purpose and without fee is hereby granted. The author +disclaims all warranties with regard to this software. + + +ConvertUTF.cpp +============== + +Copyright 2001-2004 Unicode, Inc. + +Disclaimer + +This source code is provided as is by Unicode, Inc. No claims are +made as to fitness for any particular purpose. No warranties of any +kind are expressed or implied. The recipient agrees to determine +applicability of information provided. If this file has been +purchased on magnetic or optical media from Unicode, Inc., the +sole remedy for any claim will be exchange of defective media +within 90 days of receipt. + +Limitations on Rights to Redistribute This Code + +Unicode, Inc. hereby grants the right to freely use the information +supplied in this file in the creation of products supporting the +Unicode Standard, and to make copies of this file in any form +for internal or external distribution as long as this notice +remains attached. diff --git a/contrib/replxx/README.md b/contrib/replxx/README.md new file mode 100644 index 000000000..21c907ac4 --- /dev/null +++ b/contrib/replxx/README.md @@ -0,0 +1,119 @@ +# Read Evaluate Print Loop ++ + + + +[](https://travis-ci.org/AmokHuginnsson/replxx) + +A small, portable GNU readline replacement for Linux, Windows and +MacOS which is capable of handling UTF-8 characters. Unlike GNU +readline, which is GPL, this library uses a BSD license and can be +used in any kind of program. + +## Origin + +This replxx implementation is based on the work by +[ArangoDB Team](https://github.com/arangodb/linenoise-ng) and +[Salvatore Sanfilippo](https://github.com/antirez/linenoise) and +10gen Inc. The goal is to create a zero-config, BSD +licensed, readline replacement usable in Apache2 or BSD licensed +programs. + +## Features + +* single-line and multi-line editing mode with the usual key bindings implemented +* history handling +* completion +* syntax highlighting +* hints +* BSD license source code +* Only uses a subset of VT100 escapes (ANSI.SYS compatible) +* UTF8 aware +* support for Linux, MacOS and Windows + +It deviates from Salvatore's original goal to have a minimal readline +replacement for the sake of supporting UTF8 and Windows. It deviates +from 10gen Inc.'s goal to create a C++ interface to linenoise. This +library uses C++ internally, but to the user it provides a pure C +interface that is compatible with the original linenoise API. +C interface. + +## Requirements + +To build this library, you will need a C++11-enabled compiler and +some recent version of CMake. + +## Build instructions + +### *nix + +1. Create a build directory + +```bash +mkdir -p build && cd build +``` + +2. Build the library + +```bash +cmake -DCMAKE_BUILD_TYPE=Release .. && make +``` + +3. Install the library at the default target location + +```bash +sudo make install +``` + +The default installation location can be adjusted by setting the `DESTDIR` +variable when invoking `make install`: + +```bash +make DESTDIR=/tmp install +``` + +### Windows + +1. Create a build directory in MS-DOS command prompt + +``` +md build +cd build +``` + +2. Generate Visual Studio solution file with cmake + +* 32 bit: +```bash +cmake -G "Visual Studio 12 2013" -DCMAKE_BUILD_TYPE=Release ..` +``` +* 64 bit: +```bash +`cmake -G "Visual Studio 12 2013 Win64" -DCMAKE_BUILD_TYPE=Release ..` +``` + +3. Open the generated file `replxx.sln` in the `build` subdirectory with Visual Studio. + +## Tested with... + + * Linux text only console ($TERM = linux) + * Linux KDE terminal application ($TERM = xterm) + * Linux xterm ($TERM = xterm) + * Linux Buildroot ($TERM = vt100) + * Mac OS X iTerm ($TERM = xterm) + * Mac OS X default Terminal.app ($TERM = xterm) + * OpenBSD 4.5 through an OSX Terminal.app ($TERM = screen) + * IBM AIX 6.1 + * FreeBSD xterm ($TERM = xterm) + * ANSI.SYS + * Emacs comint mode ($TERM = dumb) + * Windows + +Please test it everywhere you can and report back! + +## Let's push this forward! + +Patches should be provided in the respect of linenoise sensibility for +small and easy to understand code that and the license +restrictions. Extensions must be submitted under a BSD license-style. +A contributor license is required for contributions. + diff --git a/contrib/replxx/include/replxx.h b/contrib/replxx/include/replxx.h new file mode 100644 index 000000000..cb1c917b4 --- /dev/null +++ b/contrib/replxx/include/replxx.h @@ -0,0 +1,454 @@ +/* linenoise.h -- guerrilla line editing library against the idea that a + * line editing lib needs to be 20,000 lines of C code. + * + * See linenoise.c for more information. + * + * Copyright (c) 2010, Salvatore Sanfilippo <antirez at gmail dot com> + * Copyright (c) 2010, Pieter Noordhuis <pcnoordhuis at gmail dot com> + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Redis nor the names of its contributors may be used + * to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef __REPLXX_H +#define __REPLXX_H + +#define REPLXX_VERSION "0.0.2" +#define REPLXX_VERSION_MAJOR 0 +#define REPLXX_VERSION_MINOR 0 + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * For use in Windows DLLs: + * + * If you are building replxx into a DLL, + * unless you are using supplied CMake based build, + * ensure that 'REPLXX_BUILDING_DLL' is defined when + * building the DLL so that proper symbols are exported. + */ +#if defined( _WIN32 ) && ! defined( REPLXX_STATIC ) +# ifdef REPLXX_BUILDING_DLL +# define REPLXX_IMPEXP __declspec( dllexport ) +# else +# define REPLXX_IMPEXP __declspec( dllimport ) +# endif +#else +# define REPLXX_IMPEXP /**/ +#endif + +/*! \brief Color definitions to use in highlighter callbacks. + */ +typedef enum { + REPLXX_COLOR_BLACK = 0, + REPLXX_COLOR_RED = 1, + REPLXX_COLOR_GREEN = 2, + REPLXX_COLOR_BROWN = 3, + REPLXX_COLOR_BLUE = 4, + REPLXX_COLOR_MAGENTA = 5, + REPLXX_COLOR_CYAN = 6, + REPLXX_COLOR_LIGHTGRAY = 7, + REPLXX_COLOR_GRAY = 8, + REPLXX_COLOR_BRIGHTRED = 9, + REPLXX_COLOR_BRIGHTGREEN = 10, + REPLXX_COLOR_YELLOW = 11, + REPLXX_COLOR_BRIGHTBLUE = 12, + REPLXX_COLOR_BRIGHTMAGENTA = 13, + REPLXX_COLOR_BRIGHTCYAN = 14, + REPLXX_COLOR_WHITE = 15, + REPLXX_COLOR_NORMAL = REPLXX_COLOR_LIGHTGRAY, + REPLXX_COLOR_DEFAULT = -1, + REPLXX_COLOR_ERROR = -2 +} ReplxxColor; + +enum { REPLXX_KEY_BASE = 0x0010ffff + 1 }; +enum { REPLXX_KEY_BASE_SHIFT = 0x01000000 }; +enum { REPLXX_KEY_BASE_CONTROL = 0x02000000 }; +enum { REPLXX_KEY_BASE_META = 0x04000000 }; +enum { REPLXX_KEY_ESCAPE = 27 }; +enum { REPLXX_KEY_PAGE_UP = REPLXX_KEY_BASE + 1 }; +enum { REPLXX_KEY_PAGE_DOWN = REPLXX_KEY_PAGE_UP + 1 }; +enum { REPLXX_KEY_DOWN = REPLXX_KEY_PAGE_DOWN + 1 }; +enum { REPLXX_KEY_UP = REPLXX_KEY_DOWN + 1 }; +enum { REPLXX_KEY_LEFT = REPLXX_KEY_UP + 1 }; +enum { REPLXX_KEY_RIGHT = REPLXX_KEY_LEFT + 1 }; +enum { REPLXX_KEY_HOME = REPLXX_KEY_RIGHT + 1 }; +enum { REPLXX_KEY_END = REPLXX_KEY_HOME + 1 }; +enum { REPLXX_KEY_DELETE = REPLXX_KEY_END + 1 }; +enum { REPLXX_KEY_INSERT = REPLXX_KEY_DELETE + 1 }; +enum { REPLXX_KEY_F1 = REPLXX_KEY_INSERT + 1 }; +enum { REPLXX_KEY_F2 = REPLXX_KEY_F1 + 1 }; +enum { REPLXX_KEY_F3 = REPLXX_KEY_F2 + 1 }; +enum { REPLXX_KEY_F4 = REPLXX_KEY_F3 + 1 }; +enum { REPLXX_KEY_F5 = REPLXX_KEY_F4 + 1 }; +enum { REPLXX_KEY_F6 = REPLXX_KEY_F5 + 1 }; +enum { REPLXX_KEY_F7 = REPLXX_KEY_F6 + 1 }; +enum { REPLXX_KEY_F8 = REPLXX_KEY_F7 + 1 }; +enum { REPLXX_KEY_F9 = REPLXX_KEY_F8 + 1 }; +enum { REPLXX_KEY_F10 = REPLXX_KEY_F9 + 1 }; +enum { REPLXX_KEY_F11 = REPLXX_KEY_F10 + 1 }; +enum { REPLXX_KEY_F12 = REPLXX_KEY_F11 + 1 }; +enum { REPLXX_KEY_F13 = REPLXX_KEY_F12 + 1 }; +enum { REPLXX_KEY_F14 = REPLXX_KEY_F13 + 1 }; +enum { REPLXX_KEY_F15 = REPLXX_KEY_F14 + 1 }; +enum { REPLXX_KEY_F16 = REPLXX_KEY_F15 + 1 }; +enum { REPLXX_KEY_F17 = REPLXX_KEY_F16 + 1 }; +enum { REPLXX_KEY_F18 = REPLXX_KEY_F17 + 1 }; +enum { REPLXX_KEY_F19 = REPLXX_KEY_F18 + 1 }; +enum { REPLXX_KEY_F20 = REPLXX_KEY_F19 + 1 }; +enum { REPLXX_KEY_F21 = REPLXX_KEY_F20 + 1 }; +enum { REPLXX_KEY_F22 = REPLXX_KEY_F21 + 1 }; +enum { REPLXX_KEY_F23 = REPLXX_KEY_F22 + 1 }; +enum { REPLXX_KEY_F24 = REPLXX_KEY_F23 + 1 }; +enum { REPLXX_KEY_MOUSE = REPLXX_KEY_F24 + 1 }; + +#define REPLXX_KEY_SHIFT( key ) ( ( key ) | REPLXX_KEY_BASE_SHIFT ) +#define REPLXX_KEY_CONTROL( key ) ( ( key ) | REPLXX_KEY_BASE_CONTROL ) +#define REPLXX_KEY_META( key ) ( ( key ) | REPLXX_KEY_BASE_META ) + +enum { REPLXX_KEY_BACKSPACE = REPLXX_KEY_CONTROL( 'H' ) }; +enum { REPLXX_KEY_TAB = REPLXX_KEY_CONTROL( 'I' ) }; +enum { REPLXX_KEY_ENTER = REPLXX_KEY_CONTROL( 'M' ) }; + +/*! \brief List of built-in actions that act upon user input. + */ +typedef enum { + REPLXX_ACTION_INSERT_CHARACTER, + REPLXX_ACTION_DELETE_CHARACTER_UNDER_CURSOR, + REPLXX_ACTION_DELETE_CHARACTER_LEFT_OF_CURSOR, + REPLXX_ACTION_KILL_TO_END_OF_LINE, + REPLXX_ACTION_KILL_TO_BEGINING_OF_LINE, + REPLXX_ACTION_KILL_TO_END_OF_WORD, + REPLXX_ACTION_KILL_TO_BEGINING_OF_WORD, + REPLXX_ACTION_KILL_TO_WHITESPACE_ON_LEFT, + REPLXX_ACTION_YANK, + REPLXX_ACTION_YANK_CYCLE, + REPLXX_ACTION_MOVE_CURSOR_TO_BEGINING_OF_LINE, + REPLXX_ACTION_MOVE_CURSOR_TO_END_OF_LINE, + REPLXX_ACTION_MOVE_CURSOR_ONE_WORD_LEFT, + REPLXX_ACTION_MOVE_CURSOR_ONE_WORD_RIGHT, + REPLXX_ACTION_MOVE_CURSOR_LEFT, + REPLXX_ACTION_MOVE_CURSOR_RIGHT, + REPLXX_ACTION_HISTORY_NEXT, + REPLXX_ACTION_HISTORY_PREVIOUS, + REPLXX_ACTION_HISTORY_FIRST, + REPLXX_ACTION_HISTORY_LAST, + REPLXX_ACTION_HISTORY_INCREMENTAL_SEARCH, + REPLXX_ACTION_HISTORY_COMMON_PREFIX_SEARCH, + REPLXX_ACTION_HINT_NEXT, + REPLXX_ACTION_HINT_PREVIOUS, + REPLXX_ACTION_CAPITALIZE_WORD, + REPLXX_ACTION_LOWERCASE_WORD, + REPLXX_ACTION_UPPERCASE_WORD, + REPLXX_ACTION_TRANSPOSE_CHARACTERS, + REPLXX_ACTION_TOGGLE_OVERWRITE_MODE, +#ifndef _WIN32 + REPLXX_ACTION_VERBATIM_INSERT, + REPLXX_ACTION_SUSPEND, +#endif + REPLXX_ACTION_CLEAR_SCREEN, + REPLXX_ACTION_CLEAR_SELF, + REPLXX_ACTION_REPAINT, + REPLXX_ACTION_COMPLETE_LINE, + REPLXX_ACTION_COMPLETE_NEXT, + REPLXX_ACTION_COMPLETE_PREVIOUS, + REPLXX_ACTION_COMMIT_LINE, + REPLXX_ACTION_ABORT_LINE, + REPLXX_ACTION_SEND_EOF +} ReplxxAction; + +/*! \brief Possible results of key-press handler actions. + */ +typedef enum { + REPLXX_ACTION_RESULT_CONTINUE, /*!< Continue processing user input. */ + REPLXX_ACTION_RESULT_RETURN, /*!< Return user input entered so far. */ + REPLXX_ACTION_RESULT_BAIL /*!< Stop processing user input, returns nullptr from the \e input() call. */ +} ReplxxActionResult; + +typedef struct ReplxxStateTag { + char const* text; + int cursorPosition; +} ReplxxState; + +typedef struct Replxx Replxx; + +/*! \brief Create Replxx library resouce holder. + * + * Use replxx_end() to free resoiurce acquired with this function. + * + * \return Replxx library resouce holder. + */ +REPLXX_IMPEXP Replxx* replxx_init( void ); + +/*! \brief Cleanup resources used by Replxx library. + * + * \param replxx - a Replxx library resource holder. + */ +REPLXX_IMPEXP void replxx_end( Replxx* replxx ); + +/*! \brief Highlighter callback type definition. + * + * If user want to have colorful input she must simply install highlighter callback. + * The callback would be invoked by the library after each change to the input done by + * the user. After callback returns library uses data from colors buffer to colorize + * displayed user input. + * + * \e size of \e colors buffer is equal to number of code points in user \e input + * which will be different from simple `strlen( input )`! + * + * \param input - an UTF-8 encoded input entered by the user so far. + * \param colors - output buffer for color information. + * \param size - size of output buffer for color information. + * \param userData - pointer to opaque user data block. + */ +typedef void (replxx_highlighter_callback_t)(char const* input, ReplxxColor* colors, int size, void* userData); + +/*! \brief Register highlighter callback. + * + * \param fn - user defined callback function. + * \param userData - pointer to opaque user data block to be passed into each invocation of the callback. + */ +REPLXX_IMPEXP void replxx_set_highlighter_callback( Replxx*, replxx_highlighter_callback_t* fn, void* userData ); + +typedef struct replxx_completions replxx_completions; + +/*! \brief Completions callback type definition. + * + * \e contextLen is counted in Unicode code points (not in bytes!). + * + * For user input: + * if ( obj.me + * + * input == "if ( obj.me" + * contextLen == 2 (depending on \e replxx_set_word_break_characters()) + * + * Client application is free to update \e contextLen to be 6 (or any orther non-negative + * number not greated than the number of code points in input) if it makes better sense + * for given client application semantics. + * + * \param input - UTF-8 encoded input entered by the user until current cursor position. + * \param completions - pointer to opaque list of user completions. + * \param contextLen[in,out] - length of the additional context to provide while displaying completions. + * \param userData - pointer to opaque user data block. + */ +typedef void(replxx_completion_callback_t)(const char* input, replxx_completions* completions, int* contextLen, void* userData); + +/*! \brief Register completion callback. + * + * \param fn - user defined callback function. + * \param userData - pointer to opaque user data block to be passed into each invocation of the callback. + */ +REPLXX_IMPEXP void replxx_set_completion_callback( Replxx*, replxx_completion_callback_t* fn, void* userData ); + +/*! \brief Add another possible completion for current user input. + * + * \param completions - pointer to opaque list of user completions. + * \param str - UTF-8 encoded completion string. + */ +REPLXX_IMPEXP void replxx_add_completion( replxx_completions* completions, const char* str ); + +/*! \brief Add another possible completion for current user input. + * + * \param completions - pointer to opaque list of user completions. + * \param str - UTF-8 encoded completion string. + * \param color - a color for the completion. + */ +REPLXX_IMPEXP void replxx_add_color_completion( replxx_completions* completions, const char* str, ReplxxColor color ); + +typedef struct replxx_hints replxx_hints; + +/*! \brief Hints callback type definition. + * + * \e contextLen is counted in Unicode code points (not in bytes!). + * + * For user input: + * if ( obj.me + * + * input == "if ( obj.me" + * contextLen == 2 (depending on \e replxx_set_word_break_characters()) + * + * Client application is free to update \e contextLen to be 6 (or any orther non-negative + * number not greated than the number of code points in input) if it makes better sense + * for given client application semantics. + * + * \param input - UTF-8 encoded input entered by the user until current cursor position. + * \param hints - pointer to opaque list of possible hints. + * \param contextLen[in,out] - length of the additional context to provide while displaying hints. + * \param color - a color used for displaying hints. + * \param userData - pointer to opaque user data block. + */ +typedef void(replxx_hint_callback_t)(const char* input, replxx_hints* hints, int* contextLen, ReplxxColor* color, void* userData); + +/*! \brief Register hints callback. + * + * \param fn - user defined callback function. + * \param userData - pointer to opaque user data block to be passed into each invocation of the callback. + */ +REPLXX_IMPEXP void replxx_set_hint_callback( Replxx*, replxx_hint_callback_t* fn, void* userData ); + +/*! \brief Key press handler type definition. + * + * \param code - the key code replxx got from terminal. + * \return Decition on how should input() behave after this key handler returns. + */ +typedef ReplxxActionResult (key_press_handler_t)( int code, void* userData ); + +/*! \brief Add another possible hint for current user input. + * + * \param hints - pointer to opaque list of hints. + * \param str - UTF-8 encoded hint string. + */ +REPLXX_IMPEXP void replxx_add_hint( replxx_hints* hints, const char* str ); + +/*! \brief Read line of user input. + * + * \param prompt - prompt to be displayed before getting user input. + * \return An UTF-8 encoded input given by the user (or nullptr on EOF). + */ +REPLXX_IMPEXP char const* replxx_input( Replxx*, const char* prompt ); + +/*! \brief Get current state data. + * + * This call is intended to be used in handlers. + * + * \param state - buffer for current state of the model. + */ +REPLXX_IMPEXP void replxx_get_state( Replxx*, ReplxxState* state ); + +/*! \brief Set new state data. + * + * This call is intended to be used in handlers. + * + * \param state - new state of the model. + */ +REPLXX_IMPEXP void replxx_set_state( Replxx*, ReplxxState* state ); + +/*! \brief Print formatted string to standard output. + * + * This function ensures proper handling of ANSI escape sequences + * contained in printed data, which is especially useful on Windows + * since Unixes handle them correctly out of the box. + * + * \param fmt - printf style format. + */ +REPLXX_IMPEXP int replxx_print( Replxx*, char const* fmt, ... ); + +/*! \brief Schedule an emulated key press event. + * + * \param code - key press code to be emulated. + */ +REPLXX_IMPEXP void replxx_emulate_key_press( Replxx*, int unsigned code ); + +/*! \brief Invoke built-in action handler. + * + * \pre This function can be called only from key-press handler. + * + * \param action - a built-in action to invoke. + * \param code - a supplementary key-code to consume by built-in action handler. + * \return The action result informing the replxx what shall happen next. + */ +REPLXX_IMPEXP ReplxxActionResult replxx_invoke( Replxx*, ReplxxAction action, int unsigned code ); + +/*! \brief Bind user defined action to handle given key-press event. + * + * \param code - handle this key-press event with following handler. + * \param handler - use this handler to handle key-press event. + * \param userData - supplementary user data passed to invoked handlers. + */ +REPLXX_IMPEXP void replxx_bind_key( Replxx*, int code, key_press_handler_t handler, void* userData ); + +REPLXX_IMPEXP void replxx_set_preload_buffer( Replxx*, const char* preloadText ); + +REPLXX_IMPEXP void replxx_history_add( Replxx*, const char* line ); +REPLXX_IMPEXP int replxx_history_size( Replxx* ); + +/*! \brief Set set of word break characters. + * + * This setting influences word based cursor movement and line editing capabilities. + * + * \param wordBreakers - 7-bit ASCII set of word breaking characters. + */ +REPLXX_IMPEXP void replxx_set_word_break_characters( Replxx*, char const* wordBreakers ); + +/*! \brief How many completions should trigger pagination. + */ +REPLXX_IMPEXP void replxx_set_completion_count_cutoff( Replxx*, int count ); + +/*! \brief Set maximum number of displayed hint rows. + */ +REPLXX_IMPEXP void replxx_set_max_hint_rows( Replxx*, int count ); + +/*! \brief Set a delay before hint are shown after user stopped typing.. + * + * \param milliseconds - a number of milliseconds to wait before showing hints. + */ +REPLXX_IMPEXP void replxx_set_hint_delay( Replxx*, int milliseconds ); + +/*! \brief Set tab completion behavior. + * + * \param val - use double tab to invoke completions (if != 0). + */ +REPLXX_IMPEXP void replxx_set_double_tab_completion( Replxx*, int val ); + +/*! \brief Set tab completion behavior. + * + * \param val - invoke completion even if user input is empty (if != 0). + */ +REPLXX_IMPEXP void replxx_set_complete_on_empty( Replxx*, int val ); + +/*! \brief Set tab completion behavior. + * + * \param val - beep if completion is ambiguous (if != 0). + */ +REPLXX_IMPEXP void replxx_set_beep_on_ambiguous_completion( Replxx*, int val ); + +/*! \brief Disable output coloring. + * + * \param val - if set to non-zero disable output colors. + */ +REPLXX_IMPEXP void replxx_set_no_color( Replxx*, int val ); + +/*! \brief Set maximum number of entries in history list. + */ +REPLXX_IMPEXP void replxx_set_max_history_size( Replxx*, int len ); +REPLXX_IMPEXP char const* replxx_history_line( Replxx*, int index ); +REPLXX_IMPEXP int replxx_history_save( Replxx*, const char* filename ); +REPLXX_IMPEXP int replxx_history_load( Replxx*, const char* filename ); +REPLXX_IMPEXP void replxx_clear_screen( Replxx* ); +#ifdef __REPLXX_DEBUG__ +void replxx_debug_dump_print_codes(void); +#endif +/* the following is extension to the original linenoise API */ +REPLXX_IMPEXP int replxx_install_window_change_handler( Replxx* ); + +#ifdef __cplusplus +} +#endif + +#endif /* __REPLXX_H */ + diff --git a/contrib/replxx/include/replxx.hxx b/contrib/replxx/include/replxx.hxx new file mode 100644 index 000000000..3fe90e670 --- /dev/null +++ b/contrib/replxx/include/replxx.hxx @@ -0,0 +1,466 @@ +/* + * Copyright (c) 2017-2018, Marcin Konarski (amok at codestation.org) + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Redis nor the names of its contributors may be used + * to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef HAVE_REPLXX_HXX_INCLUDED +#define HAVE_REPLXX_HXX_INCLUDED 1 + +#include <memory> +#include <vector> +#include <string> +#include <functional> + +/* + * For use in Windows DLLs: + * + * If you are building replxx into a DLL, + * unless you are using supplied CMake based build, + * ensure that 'REPLXX_BUILDING_DLL' is defined when + * building the DLL so that proper symbols are exported. + */ +#if defined( _WIN32 ) && ! defined( REPLXX_STATIC ) +# ifdef REPLXX_BUILDING_DLL +# define REPLXX_IMPEXP __declspec( dllexport ) +# else +# define REPLXX_IMPEXP __declspec( dllimport ) +# endif +#else +# define REPLXX_IMPEXP /**/ +#endif + +#ifdef ERROR +enum { ERROR_BB1CA97EC761FC37101737BA0AA2E7C5 = ERROR }; +#undef ERROR +enum { ERROR = ERROR_BB1CA97EC761FC37101737BA0AA2E7C5 }; +#endif +#ifdef DELETE +enum { DELETE_32F68A60CEF40FAEDBC6AF20298C1A1E = DELETE }; +#undef DELETE +enum { DELETE = DELETE_32F68A60CEF40FAEDBC6AF20298C1A1E }; +#endif + +namespace replxx { + +class REPLXX_IMPEXP Replxx { +public: + enum class Color { + BLACK = 0, + RED = 1, + GREEN = 2, + BROWN = 3, + BLUE = 4, + MAGENTA = 5, + CYAN = 6, + LIGHTGRAY = 7, + GRAY = 8, + BRIGHTRED = 9, + BRIGHTGREEN = 10, + YELLOW = 11, + BRIGHTBLUE = 12, + BRIGHTMAGENTA = 13, + BRIGHTCYAN = 14, + WHITE = 15, + NORMAL = LIGHTGRAY, + DEFAULT = -1, + ERROR = -2 + }; + struct KEY { + static char32_t const BASE = 0x0010ffff + 1; + static char32_t const BASE_SHIFT = 0x01000000; + static char32_t const BASE_CONTROL = 0x02000000; + static char32_t const BASE_META = 0x04000000; + static char32_t const ESCAPE = 27; + static char32_t const PAGE_UP = BASE + 1; + static char32_t const PAGE_DOWN = PAGE_UP + 1; + static char32_t const DOWN = PAGE_DOWN + 1; + static char32_t const UP = DOWN + 1; + static char32_t const LEFT = UP + 1; + static char32_t const RIGHT = LEFT + 1; + static char32_t const HOME = RIGHT + 1; + static char32_t const END = HOME + 1; + static char32_t const DELETE = END + 1; + static char32_t const INSERT = DELETE + 1; + static char32_t const F1 = INSERT + 1; + static char32_t const F2 = F1 + 1; + static char32_t const F3 = F2 + 1; + static char32_t const F4 = F3 + 1; + static char32_t const F5 = F4 + 1; + static char32_t const F6 = F5 + 1; + static char32_t const F7 = F6 + 1; + static char32_t const F8 = F7 + 1; + static char32_t const F9 = F8 + 1; + static char32_t const F10 = F9 + 1; + static char32_t const F11 = F10 + 1; + static char32_t const F12 = F11 + 1; + static char32_t const F13 = F12 + 1; + static char32_t const F14 = F13 + 1; + static char32_t const F15 = F14 + 1; + static char32_t const F16 = F15 + 1; + static char32_t const F17 = F16 + 1; + static char32_t const F18 = F17 + 1; + static char32_t const F19 = F18 + 1; + static char32_t const F20 = F19 + 1; + static char32_t const F21 = F20 + 1; + static char32_t const F22 = F21 + 1; + static char32_t const F23 = F22 + 1; + static char32_t const F24 = F23 + 1; + static char32_t const MOUSE = F24 + 1; + static constexpr char32_t shift( char32_t key_ ) { + return ( key_ | BASE_SHIFT ); + } + static constexpr char32_t control( char32_t key_ ) { + return ( key_ | BASE_CONTROL ); + } + static constexpr char32_t meta( char32_t key_ ) { + return ( key_ | BASE_META ); + } + static char32_t const BACKSPACE = 'H' | BASE_CONTROL; + static char32_t const TAB = 'I' | BASE_CONTROL; + static char32_t const ENTER = 'M' | BASE_CONTROL; + }; + /*! \brief List of built-in actions that act upon user input. + */ + enum class ACTION { + INSERT_CHARACTER, + DELETE_CHARACTER_UNDER_CURSOR, + DELETE_CHARACTER_LEFT_OF_CURSOR, + KILL_TO_END_OF_LINE, + KILL_TO_BEGINING_OF_LINE, + KILL_TO_END_OF_WORD, + KILL_TO_BEGINING_OF_WORD, + KILL_TO_WHITESPACE_ON_LEFT, + YANK, + YANK_CYCLE, + MOVE_CURSOR_TO_BEGINING_OF_LINE, + MOVE_CURSOR_TO_END_OF_LINE, + MOVE_CURSOR_ONE_WORD_LEFT, + MOVE_CURSOR_ONE_WORD_RIGHT, + MOVE_CURSOR_LEFT, + MOVE_CURSOR_RIGHT, + HISTORY_NEXT, + HISTORY_PREVIOUS, + HISTORY_FIRST, + HISTORY_LAST, + HISTORY_INCREMENTAL_SEARCH, + HISTORY_COMMON_PREFIX_SEARCH, + HINT_NEXT, + HINT_PREVIOUS, + CAPITALIZE_WORD, + LOWERCASE_WORD, + UPPERCASE_WORD, + TRANSPOSE_CHARACTERS, + TOGGLE_OVERWRITE_MODE, +#ifndef _WIN32 + VERBATIM_INSERT, + SUSPEND, +#endif + CLEAR_SCREEN, + CLEAR_SELF, + REPAINT, + COMPLETE_LINE, + COMPLETE_NEXT, + COMPLETE_PREVIOUS, + COMMIT_LINE, + ABORT_LINE, + SEND_EOF + }; + /*! \brief Possible results of key-press handler actions. + */ + enum class ACTION_RESULT { + CONTINUE, /*!< Continue processing user input. */ + RETURN, /*!< Return user input entered so far. */ + BAIL /*!< Stop processing user input, returns nullptr from the \e input() call. */ + }; + typedef std::vector<Color> colors_t; + class Completion { + std::string _text; + Color _color; + public: + Completion( char const* text_ ) + : _text( text_ ) + , _color( Color::DEFAULT ) { + } + Completion( std::string const& text_ ) + : _text( text_ ) + , _color( Color::DEFAULT ) { + } + Completion( std::string const& text_, Color color_ ) + : _text( text_ ) + , _color( color_ ) { + } + std::string const& text( void ) const { + return ( _text ); + } + Color color( void ) const { + return ( _color ); + } + }; + typedef std::vector<Completion> completions_t; + typedef std::vector<std::string> hints_t; + + /*! \brief Completions callback type definition. + * + * \e contextLen is counted in Unicode code points (not in bytes!). + * + * For user input: + * if ( obj.me + * + * input == "if ( obj.me" + * contextLen == 2 (depending on \e set_word_break_characters()) + * + * Client application is free to update \e contextLen to be 6 (or any orther non-negative + * number not greated than the number of code points in input) if it makes better sense + * for given client application semantics. + * + * \param input - UTF-8 encoded input entered by the user until current cursor position. + * \param[in,out] contextLen - length of the additional context to provide while displaying completions. + * \return A list of user completions. + */ + typedef std::function<completions_t ( std::string const& input, int& contextLen )> completion_callback_t; + + /*! \brief Highlighter callback type definition. + * + * If user want to have colorful input she must simply install highlighter callback. + * The callback would be invoked by the library after each change to the input done by + * the user. After callback returns library uses data from colors buffer to colorize + * displayed user input. + * + * Size of \e colors buffer is equal to number of code points in user \e input + * which will be different from simple `input.lenght()`! + * + * \param input - an UTF-8 encoded input entered by the user so far. + * \param colors - output buffer for color information. + */ + typedef std::function<void ( std::string const& input, colors_t& colors )> highlighter_callback_t; + + /*! \brief Hints callback type definition. + * + * \e contextLen is counted in Unicode code points (not in bytes!). + * + * For user input: + * if ( obj.me + * + * input == "if ( obj.me" + * contextLen == 2 (depending on \e set_word_break_characters()) + * + * Client application is free to update \e contextLen to be 6 (or any orther non-negative + * number not greated than the number of code points in input) if it makes better sense + * for given client application semantics. + * + * \param input - UTF-8 encoded input entered by the user until current cursor position. + * \param contextLen[in,out] - length of the additional context to provide while displaying hints. + * \param color - a color used for displaying hints. + * \return A list of possible hints. + */ + typedef std::function<hints_t ( std::string const& input, int& contextLen, Color& color )> hint_callback_t; + + /*! \brief Key press handler type definition. + * + * \param code - the key code replxx got from terminal. + * \return Decition on how should input() behave after this key handler returns. + */ + typedef std::function<ACTION_RESULT ( char32_t code )> key_press_handler_t; + + struct State { + char const* _text; + int _cursorPosition; + State( char const* text_, int cursorPosition_ = -1 ) + : _text( text_ ) + , _cursorPosition( cursorPosition_ ) { + } + State( State const& ) = default; + State& operator = ( State const& ) = default; + char const* text( void ) const { + return ( _text ); + } + int cursor_position( void ) const { + return ( _cursorPosition ); + } + }; + + class ReplxxImpl; +private: + typedef std::unique_ptr<ReplxxImpl, void (*)( ReplxxImpl* )> impl_t; +#ifdef _WIN32 +#pragma warning(push) +#pragma warning(disable:4251) +#endif + impl_t _impl; +#ifdef _WIN32 +#pragma warning(pop) +#endif + +public: + Replxx( void ); + Replxx( Replxx&& ) = default; + Replxx& operator = ( Replxx&& ) = default; + + /*! \brief Register completion callback. + * + * \param fn - user defined callback function. + */ + void set_completion_callback( completion_callback_t const& fn ); + + /*! \brief Register highlighter callback. + * + * \param fn - user defined callback function. + */ + void set_highlighter_callback( highlighter_callback_t const& fn ); + + /*! \brief Register hints callback. + * + * \param fn - user defined callback function. + */ + void set_hint_callback( hint_callback_t const& fn ); + + /*! \brief Read line of user input. + * + * \param prompt - prompt to be displayed before getting user input. + * \return An UTF-8 encoded input given by the user (or nullptr on EOF). + */ + char const* input( std::string const& prompt ); + + /*! \brief Get current state data. + * + * This call is intended to be used in handlers. + * + * \return Current state of the model. + */ + State get_state( void ) const; + + /*! \brief Set new state data. + * + * This call is intended to be used in handlers. + * + * \param state - new state of the model. + */ + void set_state( State const& state ); + + /*! \brief Print formatted string to standard output. + * + * This function ensures proper handling of ANSI escape sequences + * contained in printed data, which is especially useful on Windows + * since Unixes handle them correctly out of the box. + * + * \param fmt - printf style format. + */ + void print( char const* fmt, ... ); + + /*! \brief Schedule an emulated key press event. + * + * \param code - key press code to be emulated. + */ + void emulate_key_press( char32_t code ); + + /*! \brief Invoke built-in action handler. + * + * \pre This method can be called only from key-press handler. + * + * \param action - a built-in action to invoke. + * \param code - a supplementary key-code to consume by built-in action handler. + * \return The action result informing the replxx what shall happen next. + */ + ACTION_RESULT invoke( ACTION action, char32_t code ); + + /*! \brief Bind user defined action to handle given key-press event. + * + * \param code - handle this key-press event with following handler. + * \param handle - use this handler to handle key-press event. + */ + void bind_key( char32_t code, key_press_handler_t handler ); + + void history_add( std::string const& line ); + int history_save( std::string const& filename ); + int history_load( std::string const& filename ); + int history_size( void ) const; + std::string history_line( int index ); + + void set_preload_buffer( std::string const& preloadText ); + + /*! \brief Set set of word break characters. + * + * This setting influences word based cursor movement and line editing capabilities. + * + * \param wordBreakers - 7-bit ASCII set of word breaking characters. + */ + void set_word_break_characters( char const* wordBreakers ); + + /*! \brief How many completions should trigger pagination. + */ + void set_completion_count_cutoff( int count ); + + /*! \brief Set maximum number of displayed hint rows. + */ + void set_max_hint_rows( int count ); + + /*! \brief Set a delay before hint are shown after user stopped typing.. + * + * \param milliseconds - a number of milliseconds to wait before showing hints. + */ + void set_hint_delay( int milliseconds ); + + /*! \brief Set tab completion behavior. + * + * \param val - use double tab to invoke completions. + */ + void set_double_tab_completion( bool val ); + + /*! \brief Set tab completion behavior. + * + * \param val - invoke completion even if user input is empty. + */ + void set_complete_on_empty( bool val ); + + /*! \brief Set tab completion behavior. + * + * \param val - beep if completion is ambiguous. + */ + void set_beep_on_ambiguous_completion( bool val ); + + /*! \brief Disable output coloring. + * + * \param val - if set to non-zero disable output colors. + */ + void set_no_color( bool val ); + + /*! \brief Set maximum number of entries in history list. + */ + void set_max_history_size( int len ); + void clear_screen( void ); + int install_window_change_handler( void ); + +private: + Replxx( Replxx const& ) = delete; + Replxx& operator = ( Replxx const& ) = delete; +}; + +} + +#endif /* HAVE_REPLXX_HXX_INCLUDED */ + diff --git a/contrib/replxx/src/ConvertUTF.cpp b/contrib/replxx/src/ConvertUTF.cpp new file mode 100644 index 000000000..3609c6249 --- /dev/null +++ b/contrib/replxx/src/ConvertUTF.cpp @@ -0,0 +1,271 @@ +/* + * Copyright 2001-2004 Unicode, Inc. + * + * Disclaimer + * + * This source code is provided as is by Unicode, Inc. No claims are + * made as to fitness for any particular purpose. No warranties of any + * kind are expressed or implied. The recipient agrees to determine + * applicability of information provided. If this file has been + * purchased on magnetic or optical media from Unicode, Inc., the + * sole remedy for any claim will be exchange of defective media + * within 90 days of receipt. + * + * Limitations on Rights to Redistribute This Code + * + * Unicode, Inc. hereby grants the right to freely use the information + * supplied in this file in the creation of products supporting the + * Unicode Standard, and to make copies of this file in any form + * for internal or external distribution as long as this notice + * remains attached. + */ + +/* --------------------------------------------------------------------- + + Conversions between UTF32, UTF-16, and UTF-8. Source code file. + Author: Mark E. Davis, 1994. + Rev History: Rick McGowan, fixes & updates May 2001. + Sept 2001: fixed const & error conditions per + mods suggested by S. Parent & A. Lillich. + June 2002: Tim Dodd added detection and handling of incomplete + source sequences, enhanced error detection, added casts + to eliminate compiler warnings. + July 2003: slight mods to back out aggressive FFFE detection. + Jan 2004: updated switches in from-UTF8 conversions. + Oct 2004: updated to use UNI_MAX_LEGAL_UTF32 in UTF-32 conversions. + + See the header file "ConvertUTF.h" for complete documentation. + +------------------------------------------------------------------------ */ + +#include "ConvertUTF.h" +#ifdef CVTUTF_DEBUG +#include <stdio.h> +#endif + +namespace replxx { + +#define UNI_SUR_HIGH_START (UTF32)0xD800 +#define UNI_SUR_LOW_END (UTF32)0xDFFF + +/* --------------------------------------------------------------------- */ + +/* + * Index into the table below with the first byte of a UTF-8 sequence to + * get the number of trailing bytes that are supposed to follow it. + * Note that *legal* UTF-8 values can't have 4 or 5-bytes. The table is + * left as-is for anyone who may want to do such conversion, which was + * allowed in earlier algorithms. + */ +static const char trailingBytesForUTF8[256] = { + 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, + 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, + 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 3,3,3,3,3,3,3,3,4,4,4,4,5,5,5,5 +}; + +/* + * Magic values subtracted from a buffer value during UTF8 conversion. + * This table contains as many values as there might be trailing bytes + * in a UTF-8 sequence. + */ +static const UTF32 offsetsFromUTF8[6] = { 0x00000000UL, 0x00003080UL, 0x000E2080UL, + 0x03C82080UL, 0xFA082080UL, 0x82082080UL }; + +/* + * Once the bits are split out into bytes of UTF-8, this is a mask OR-ed + * into the first byte, depending on how many bytes follow. There are + * as many entries in this table as there are UTF-8 sequence types. + * (I.e., one byte sequence, two byte... etc.). Remember that sequencs + * for *legal* UTF-8 will be 4 or fewer bytes total. + */ +static const UTF8 firstByteMark[7] = { 0x00, 0x00, 0xC0, 0xE0, 0xF0, 0xF8, 0xFC }; + +/* --------------------------------------------------------------------- */ + +/* The interface converts a whole buffer to avoid function-call overhead. + * Constants have been gathered. Loops & conditionals have been removed as + * much as possible for efficiency, in favor of drop-through switches. + * (See "Note A" at the bottom of the file for equivalent code.) + * If your compiler supports it, the "isLegalUTF8" call can be turned + * into an inline function. + */ + +/* --------------------------------------------------------------------- */ + +/* + * Utility routine to tell whether a sequence of bytes is legal UTF-8. + * This must be called with the length pre-determined by the first byte. + * If not calling this from ConvertUTF8to*, then the length can be set by: + * length = trailingBytesForUTF8[*source]+1; + * and the sequence is illegal right away if there aren't that many bytes + * available. + * If presented with a length > 4, this returns false. The Unicode + * definition of UTF-8 goes up to 4-byte sequences. + */ + +static bool isLegalUTF8(const UTF8 *source, int length) { + UTF8 a; + const UTF8 *srcptr = source+length; + switch (length) { + default: return false; + /* Everything else falls through when "true"... */ + case 4: { if ((a = (*--srcptr)) < 0x80 || a > 0xBF) return false; } /* fall through */ + case 3: { if ((a = (*--srcptr)) < 0x80 || a > 0xBF) return false; } /* fall through */ + case 2: { + if ((a = (*--srcptr)) > 0xBF) return false; + + switch (*source) { + /* no fall-through in this inner switch */ + case 0xE0: if (a < 0xA0) return false; break; + case 0xED: if (a > 0x9F) return false; break; + case 0xF0: if (a < 0x90) return false; break; + case 0xF4: if (a > 0x8F) return false; break; + default: if (a < 0x80) return false; + } + } /* fall through */ + case 1: { if (*source >= 0x80 && *source < 0xC2) return false; } /* fall through */ + } + if (*source > 0xF4) return false; + return true; +} + +/* --------------------------------------------------------------------- */ + +ConversionResult ConvertUTF32toUTF8 ( + const UTF32** sourceStart, const UTF32* sourceEnd, + UTF8** targetStart, UTF8* targetEnd, ConversionFlags flags) { + ConversionResult result = conversionOK; + const UTF32* source = *sourceStart; + UTF8* target = *targetStart; + while (source < sourceEnd) { + UTF32 ch; + unsigned short bytesToWrite = 0; + const UTF32 byteMask = 0xBF; + const UTF32 byteMark = 0x80; + ch = *source++; + if (flags == strictConversion ) { + /* UTF-16 surrogate values are illegal in UTF-32 */ + if (ch >= UNI_SUR_HIGH_START && ch <= UNI_SUR_LOW_END) { + --source; /* return to the illegal value itself */ + result = sourceIllegal; + break; + } + } + /* + * Figure out how many bytes the result will require. Turn any + * illegally large UTF32 things (> Plane 17) into replacement chars. + */ + if (ch < (UTF32)0x80) { bytesToWrite = 1; + } else if (ch < (UTF32)0x800) { bytesToWrite = 2; + } else if (ch < (UTF32)0x10000) { bytesToWrite = 3; + } else if (ch <= UNI_MAX_LEGAL_UTF32) { bytesToWrite = 4; + } else { bytesToWrite = 3; + ch = UNI_REPLACEMENT_CHAR; + result = sourceIllegal; + } + + target += bytesToWrite; + if (target > targetEnd) { + --source; /* Back up source pointer! */ + target -= bytesToWrite; result = targetExhausted; break; + } + switch (bytesToWrite) { /* note: everything falls through. */ + case 4: { *--target = (UTF8)((ch | byteMark) & byteMask); ch >>= 6; } /* fall through */ + case 3: { *--target = (UTF8)((ch | byteMark) & byteMask); ch >>= 6; } /* fall through */ + case 2: { *--target = (UTF8)((ch | byteMark) & byteMask); ch >>= 6; } /* fall through */ + case 1: { *--target = (UTF8) (ch | firstByteMark[bytesToWrite]); } /* fall through */ + } + target += bytesToWrite; + } + *sourceStart = source; + *targetStart = target; + return result; +} + +/* --------------------------------------------------------------------- */ + +ConversionResult ConvertUTF8toUTF32 ( + const UTF8** sourceStart, const UTF8* sourceEnd, + UTF32** targetStart, UTF32* targetEnd, ConversionFlags flags) { + ConversionResult result = conversionOK; + const UTF8* source = *sourceStart; + UTF32* target = *targetStart; + while (source < sourceEnd) { + UTF32 ch = 0; + unsigned short extraBytesToRead = trailingBytesForUTF8[*source]; + if (source + extraBytesToRead >= sourceEnd) { + result = sourceExhausted; break; + } + /* Do this check whether lenient or strict */ + if (! isLegalUTF8(source, extraBytesToRead+1)) { + result = sourceIllegal; + break; + } + /* + * The cases all fall through. See "Note A" below. + */ + switch (extraBytesToRead) { + case 5: { ch += *source++; ch <<= 6; } /* fall through */ + case 4: { ch += *source++; ch <<= 6; } /* fall through */ + case 3: { ch += *source++; ch <<= 6; } /* fall through */ + case 2: { ch += *source++; ch <<= 6; } /* fall through */ + case 1: { ch += *source++; ch <<= 6; } /* fall through */ + case 0: { ch += *source++; } /* fall through */ + } + ch -= offsetsFromUTF8[extraBytesToRead]; + + if (target >= targetEnd) { + source -= (extraBytesToRead+1); /* Back up the source pointer! */ + result = targetExhausted; break; + } + if (ch <= UNI_MAX_LEGAL_UTF32) { + /* + * UTF-16 surrogate values are illegal in UTF-32, and anything + * over Plane 17 (> 0x10FFFF) is illegal. + */ + if (ch >= UNI_SUR_HIGH_START && ch <= UNI_SUR_LOW_END) { + if (flags == strictConversion) { + source -= (extraBytesToRead+1); /* return to the illegal value itself */ + result = sourceIllegal; + break; + } else { + *target++ = UNI_REPLACEMENT_CHAR; + } + } else { + *target++ = ch; + } + } else { /* i.e., ch > UNI_MAX_LEGAL_UTF32 */ + result = sourceIllegal; + *target++ = UNI_REPLACEMENT_CHAR; + } + } + *sourceStart = source; + *targetStart = target; + return result; +} + +} + +/* --------------------------------------------------------------------- + + Note A. + The fall-through switches in UTF-8 reading code save a + temp variable, some decrements & conditionals. The switches + are equivalent to the following loop: + { + int tmpBytesToRead = extraBytesToRead+1; + do { + ch += *source++; + --tmpBytesToRead; + if (tmpBytesToRead) ch <<= 6; + } while (tmpBytesToRead > 0); + } + In UTF-8 writing code, the switches on "bytesToWrite" are + similarly unrolled loops. + + --------------------------------------------------------------------- */ diff --git a/contrib/replxx/src/ConvertUTF.h b/contrib/replxx/src/ConvertUTF.h new file mode 100644 index 000000000..f91d55732 --- /dev/null +++ b/contrib/replxx/src/ConvertUTF.h @@ -0,0 +1,139 @@ +/* + * Copyright 2001-2004 Unicode, Inc. + * + * Disclaimer + * + * This source code is provided as is by Unicode, Inc. No claims are + * made as to fitness for any particular purpose. No warranties of any + * kind are expressed or implied. The recipient agrees to determine + * applicability of information provided. If this file has been + * purchased on magnetic or optical media from Unicode, Inc., the + * sole remedy for any claim will be exchange of defective media + * within 90 days of receipt. + * + * Limitations on Rights to Redistribute This Code + * + * Unicode, Inc. hereby grants the right to freely use the information + * supplied in this file in the creation of products supporting the + * Unicode Standard, and to make copies of this file in any form + * for internal or external distribution as long as this notice + * remains attached. + */ + +/* --------------------------------------------------------------------- + + Conversions between UTF32, UTF-16, and UTF-8. Header file. + + Several funtions are included here, forming a complete set of + conversions between the three formats. UTF-7 is not included + here, but is handled in a separate source file. + + Each of these routines takes pointers to input buffers and output + buffers. The input buffers are const. + + Each routine converts the text between *sourceStart and sourceEnd, + putting the result into the buffer between *targetStart and + targetEnd. Note: the end pointers are *after* the last item: e.g. + *(sourceEnd - 1) is the last item. + + The return result indicates whether the conversion was successful, + and if not, whether the problem was in the source or target buffers. + (Only the first encountered problem is indicated.) + + After the conversion, *sourceStart and *targetStart are both + updated to point to the end of last text successfully converted in + the respective buffers. + + Input parameters: + sourceStart - pointer to a pointer to the source buffer. + The contents of this are modified on return so that + it points at the next thing to be converted. + targetStart - similarly, pointer to pointer to the target buffer. + sourceEnd, targetEnd - respectively pointers to the ends of the + two buffers, for overflow checking only. + + These conversion functions take a ConversionFlags argument. When this + flag is set to strict, both irregular sequences and isolated surrogates + will cause an error. When the flag is set to lenient, both irregular + sequences and isolated surrogates are converted. + + Whether the flag is strict or lenient, all illegal sequences will cause + an error return. This includes sequences such as: <F4 90 80 80>, <C0 80>, + or <A0> in UTF-8, and values above 0x10FFFF in UTF-32. Conformant code + must check for illegal sequences. + + When the flag is set to lenient, characters over 0x10FFFF are converted + to the replacement character; otherwise (when the flag is set to strict) + they constitute an error. + + Output parameters: + The value "sourceIllegal" is returned from some routines if the input + sequence is malformed. When "sourceIllegal" is returned, the source + value will point to the illegal value that caused the problem. E.g., + in UTF-8 when a sequence is malformed, it points to the start of the + malformed sequence. + + Author: Mark E. Davis, 1994. + Rev History: Rick McGowan, fixes & updates May 2001. + Fixes & updates, Sept 2001. + +------------------------------------------------------------------------ */ + +/* --------------------------------------------------------------------- + The following 4 definitions are compiler-specific. + The C standard does not guarantee that wchar_t has at least + 16 bits, so wchar_t is no less portable than unsigned short! + All should be unsigned values to avoid sign extension during + bit mask & shift operations. +------------------------------------------------------------------------ */ + +#ifndef REPLXX_CONVERT_UTF8_H_INCLUDED +#define REPLXX_CONVERT_UTF8_H_INCLUDED 1 + +#if 0 +typedef unsigned long UTF32; /* at least 32 bits */ +typedef unsigned short UTF16; /* at least 16 bits */ +typedef unsigned char UTF8; /* typically 8 bits */ +#endif + +#include <stdint.h> +#include <string> + +namespace replxx { + +typedef uint32_t UTF32; +typedef uint16_t UTF16; +typedef uint8_t UTF8; + +/* Some fundamental constants */ +#define UNI_REPLACEMENT_CHAR (UTF32)0x0000FFFD +#define UNI_MAX_BMP (UTF32)0x0000FFFF +#define UNI_MAX_UTF16 (UTF32)0x0010FFFF +#define UNI_MAX_UTF32 (UTF32)0x7FFFFFFF +#define UNI_MAX_LEGAL_UTF32 (UTF32)0x0010FFFF + +typedef enum { + conversionOK, /* conversion successful */ + sourceExhausted, /* partial character in source, but hit end */ + targetExhausted, /* insuff. room in target for conversion */ + sourceIllegal /* source sequence is illegal/malformed */ +} ConversionResult; + +typedef enum { + strictConversion = 0, + lenientConversion +} ConversionFlags; + +ConversionResult ConvertUTF8toUTF32 ( + const UTF8** sourceStart, const UTF8* sourceEnd, + UTF32** targetStart, UTF32* targetEnd, ConversionFlags flags); + +ConversionResult ConvertUTF32toUTF8 ( + const UTF32** sourceStart, const UTF32* sourceEnd, + UTF8** targetStart, UTF8* targetEnd, ConversionFlags flags); + +} + +#endif /* REPLXX_CONVERT_UTF8_H_INCLUDED */ + +/* --------------------------------------------------------------------- */ diff --git a/contrib/replxx/src/conversion.cxx b/contrib/replxx/src/conversion.cxx new file mode 100644 index 000000000..0b4c5fa48 --- /dev/null +++ b/contrib/replxx/src/conversion.cxx @@ -0,0 +1,113 @@ +#include <algorithm> +#include <string> +#include <cstring> +#include <cctype> +#include <locale.h> + +#include "conversion.hxx" + +#ifdef _WIN32 +#define strdup _strdup +#endif + +using namespace std; + +namespace replxx { + +namespace locale { + +void to_lower( std::string& s_ ) { + transform( s_.begin(), s_.end(), s_.begin(), static_cast<int(*)(int)>( &tolower ) ); +} + +bool is_8bit_encoding( void ) { + bool is8BitEncoding( false ); + string origLC( setlocale( LC_CTYPE, nullptr ) ); + string lc( origLC ); + to_lower( lc ); + if ( lc == "c" ) { + setlocale( LC_CTYPE, "" ); + } + lc = setlocale( LC_CTYPE, nullptr ); + setlocale( LC_CTYPE, origLC.c_str() ); + to_lower( lc ); + if ( lc.find( "8859" ) != std::string::npos ) { + is8BitEncoding = true; + } + return ( is8BitEncoding ); +} + +bool is8BitEncoding( is_8bit_encoding() ); + +} + +ConversionResult copyString8to32(char32_t* dst, int dstSize, int& dstCount, const char* src) { + ConversionResult res = ConversionResult::conversionOK; + if ( ! locale::is8BitEncoding ) { + const UTF8* sourceStart = reinterpret_cast<const UTF8*>(src); + const UTF8* sourceEnd = sourceStart + strlen(src); + UTF32* targetStart = reinterpret_cast<UTF32*>(dst); + UTF32* targetEnd = targetStart + dstSize; + + res = ConvertUTF8toUTF32( + &sourceStart, sourceEnd, &targetStart, targetEnd, lenientConversion); + + if (res == conversionOK) { + dstCount = targetStart - reinterpret_cast<UTF32*>(dst); + + if (dstCount < dstSize) { + *targetStart = 0; + } + } + } else { + for ( dstCount = 0; ( dstCount < dstSize ) && src[dstCount]; ++ dstCount ) { + dst[dstCount] = src[dstCount]; + } + } + return res; +} + +ConversionResult copyString8to32(char32_t* dst, int dstSize, int& dstCount, const char8_t* src) { + return copyString8to32( + dst, dstSize, dstCount, reinterpret_cast<const char*>(src) + ); +} + +void copyString32to8( + char* dst, int dstSize, const char32_t* src, int srcSize, int* dstCount +) { + if ( ! locale::is8BitEncoding ) { + const UTF32* sourceStart = reinterpret_cast<const UTF32*>(src); + const UTF32* sourceEnd = sourceStart + srcSize; + UTF8* targetStart = reinterpret_cast<UTF8*>(dst); + UTF8* targetEnd = targetStart + dstSize; + + ConversionResult res = ConvertUTF32toUTF8( + &sourceStart, sourceEnd, &targetStart, targetEnd, lenientConversion); + + if (res == conversionOK) { + int resCount( targetStart - reinterpret_cast<UTF8*>( dst ) ); + + if ( resCount < dstSize ) { + *targetStart = 0; + } + if ( dstCount ) { + *dstCount = resCount; + } + } + } else { + int i( 0 ); + for ( i = 0; ( i < dstSize ) && ( i < srcSize ) && src[i]; ++ i ) { + dst[i] = static_cast<char>( src[i] ); + } + if ( dstCount ) { + *dstCount = i; + } + if ( i < dstSize ) { + dst[i] = 0; + } + } +} + +} + diff --git a/contrib/replxx/src/conversion.hxx b/contrib/replxx/src/conversion.hxx new file mode 100644 index 000000000..45d251a6c --- /dev/null +++ b/contrib/replxx/src/conversion.hxx @@ -0,0 +1,20 @@ +#ifndef REPLXX_CONVERSION_HXX_INCLUDED +#define REPLXX_CONVERSION_HXX_INCLUDED 1 + +#include "ConvertUTF.h" + +namespace replxx { + +typedef unsigned char char8_t; + +ConversionResult copyString8to32( char32_t* dst, int dstSize, int& dstCount, char const* src ); +ConversionResult copyString8to32( char32_t* dst, int dstSize, int& dstCount, char8_t const* src ); +void copyString32to8( char* dst, int dstSize, char32_t const* src, int srcSize, int* dstCount = nullptr ); + +namespace locale { +extern bool is8BitEncoding; +} + +} + +#endif diff --git a/contrib/replxx/src/escape.cxx b/contrib/replxx/src/escape.cxx new file mode 100644 index 000000000..3edc4c1ec --- /dev/null +++ b/contrib/replxx/src/escape.cxx @@ -0,0 +1,860 @@ +#include "escape.hxx" +#include "io.hxx" +#include "replxx.hxx" + +#ifndef _WIN32 + +namespace replxx { + +namespace EscapeSequenceProcessing { // move these out of global namespace + +// This chunk of code does parsing of the escape sequences sent by various Linux +// terminals. +// +// It handles arrow keys, Home, End and Delete keys by interpreting the +// sequences sent by +// gnome terminal, xterm, rxvt, konsole, aterm and yakuake including the Alt and +// Ctrl key +// combinations that are understood by replxx. +// +// The parsing uses tables, a bunch of intermediate dispatch routines and a +// doDispatch +// loop that reads the tables and sends control to "deeper" routines to continue +// the +// parsing. The starting call to doDispatch( c, initialDispatch ) will +// eventually return +// either a character (with optional CTRL and META bits set), or -1 if parsing +// fails, or +// zero if an attempt to read from the keyboard fails. +// +// This is rather sloppy escape sequence processing, since we're not paying +// attention to what the +// actual TERM is set to and are processing all key sequences for all terminals, +// but it works with +// the most common keystrokes on the most common terminals. It's intricate, but +// the nested 'if' +// statements required to do it directly would be worse. This way has the +// advantage of allowing +// changes and extensions without having to touch a lot of code. + + +static char32_t thisKeyMetaCtrl = 0; // holds pre-set Meta and/or Ctrl modifiers + +// This dispatch routine is given a dispatch table and then farms work out to +// routines +// listed in the table based on the character it is called with. The dispatch +// routines can +// read more input characters to decide what should eventually be returned. +// Eventually, +// a called routine returns either a character or -1 to indicate parsing +// failure. +// +char32_t doDispatch(char32_t c, CharacterDispatch& dispatchTable) { + for (unsigned int i = 0; i < dispatchTable.len; ++i) { + if (static_cast<unsigned char>(dispatchTable.chars[i]) == c) { + return dispatchTable.dispatch[i](c); + } + } + return dispatchTable.dispatch[dispatchTable.len](c); +} + +// Final dispatch routines -- return something +// +static char32_t normalKeyRoutine(char32_t c) { return thisKeyMetaCtrl | c; } +static char32_t upArrowKeyRoutine(char32_t) { + return thisKeyMetaCtrl | Replxx::KEY::UP;; +} +static char32_t downArrowKeyRoutine(char32_t) { + return thisKeyMetaCtrl | Replxx::KEY::DOWN; +} +static char32_t rightArrowKeyRoutine(char32_t) { + return thisKeyMetaCtrl | Replxx::KEY::RIGHT; +} +static char32_t leftArrowKeyRoutine(char32_t) { + return thisKeyMetaCtrl | Replxx::KEY::LEFT; +} +static char32_t homeKeyRoutine(char32_t) { return thisKeyMetaCtrl | Replxx::KEY::HOME; } +static char32_t endKeyRoutine(char32_t) { return thisKeyMetaCtrl | Replxx::KEY::END; } +static char32_t shiftTabRoutine(char32_t) { return Replxx::KEY::BASE_SHIFT | Replxx::KEY::TAB; } +static char32_t f1KeyRoutine(char32_t) { return thisKeyMetaCtrl | Replxx::KEY::F1; } +static char32_t f2KeyRoutine(char32_t) { return thisKeyMetaCtrl | Replxx::KEY::F2; } +static char32_t f3KeyRoutine(char32_t) { return thisKeyMetaCtrl | Replxx::KEY::F3; } +static char32_t f4KeyRoutine(char32_t) { return thisKeyMetaCtrl | Replxx::KEY::F4; } +static char32_t f5KeyRoutine(char32_t) { return thisKeyMetaCtrl | Replxx::KEY::F5; } +static char32_t f6KeyRoutine(char32_t) { return thisKeyMetaCtrl | Replxx::KEY::F6; } +static char32_t f7KeyRoutine(char32_t) { return thisKeyMetaCtrl | Replxx::KEY::F7; } +static char32_t f8KeyRoutine(char32_t) { return thisKeyMetaCtrl | Replxx::KEY::F8; } +static char32_t f9KeyRoutine(char32_t) { return thisKeyMetaCtrl | Replxx::KEY::F9; } +static char32_t f10KeyRoutine(char32_t) { return thisKeyMetaCtrl | Replxx::KEY::F10; } +static char32_t f11KeyRoutine(char32_t) { return thisKeyMetaCtrl | Replxx::KEY::F11; } +static char32_t f12KeyRoutine(char32_t) { return thisKeyMetaCtrl | Replxx::KEY::F12; } +static char32_t pageUpKeyRoutine(char32_t) { + return thisKeyMetaCtrl | Replxx::KEY::PAGE_UP; +} +static char32_t pageDownKeyRoutine(char32_t) { + return thisKeyMetaCtrl | Replxx::KEY::PAGE_DOWN; +} +static char32_t deleteCharRoutine(char32_t) { + return thisKeyMetaCtrl | Replxx::KEY::BACKSPACE; +} // key labeled Backspace +static char32_t insertKeyRoutine(char32_t) { + return thisKeyMetaCtrl | Replxx::KEY::INSERT; +} // key labeled Delete +static char32_t deleteKeyRoutine(char32_t) { + return thisKeyMetaCtrl | Replxx::KEY::DELETE; +} // key labeled Delete +static char32_t ctrlUpArrowKeyRoutine(char32_t) { + return thisKeyMetaCtrl | Replxx::KEY::BASE_CONTROL | Replxx::KEY::UP; +} +static char32_t ctrlDownArrowKeyRoutine(char32_t) { + return thisKeyMetaCtrl | Replxx::KEY::BASE_CONTROL | Replxx::KEY::DOWN; +} +static char32_t ctrlRightArrowKeyRoutine(char32_t) { + return thisKeyMetaCtrl | Replxx::KEY::BASE_CONTROL | Replxx::KEY::RIGHT; +} +static char32_t ctrlLeftArrowKeyRoutine(char32_t) { + return thisKeyMetaCtrl | Replxx::KEY::BASE_CONTROL | Replxx::KEY::LEFT; +} +static char32_t escFailureRoutine(char32_t) { + beep(); + return -1; +} + +// Handle ESC [ 1 ; 2 or 3 (or 5) <more stuff> escape sequences +// +static CharacterDispatchRoutine escLeftBracket1Semicolon2or3or5Routines[] = { + upArrowKeyRoutine, + downArrowKeyRoutine, + rightArrowKeyRoutine, + leftArrowKeyRoutine, + homeKeyRoutine, + endKeyRoutine, + f1KeyRoutine, + f2KeyRoutine, + f3KeyRoutine, + f4KeyRoutine, + escFailureRoutine +}; +static CharacterDispatch escLeftBracket1Semicolon2or3or5Dispatch = { + 10, "ABCDHFPQRS", escLeftBracket1Semicolon2or3or5Routines +}; + +// Handle ESC [ 1 ; <more stuff> escape sequences +// +static char32_t escLeftBracket1Semicolon2Routine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + thisKeyMetaCtrl |= Replxx::KEY::BASE_SHIFT; + return doDispatch(c, escLeftBracket1Semicolon2or3or5Dispatch); +} +static char32_t escLeftBracket1Semicolon3Routine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + thisKeyMetaCtrl |= Replxx::KEY::BASE_META; + return doDispatch(c, escLeftBracket1Semicolon2or3or5Dispatch); +} +static char32_t escLeftBracket1Semicolon5Routine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + thisKeyMetaCtrl |= Replxx::KEY::BASE_CONTROL; + return doDispatch(c, escLeftBracket1Semicolon2or3or5Dispatch); +} +static CharacterDispatchRoutine escLeftBracket1SemicolonRoutines[] = { + escLeftBracket1Semicolon2Routine, + escLeftBracket1Semicolon3Routine, + escLeftBracket1Semicolon5Routine, + escFailureRoutine +}; +static CharacterDispatch escLeftBracket1SemicolonDispatch = { + 3, "235", escLeftBracket1SemicolonRoutines +}; + +// Handle ESC [ 1 ; <more stuff> escape sequences +// +static char32_t escLeftBracket1SemicolonRoutine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + return doDispatch(c, escLeftBracket1SemicolonDispatch); +} + +// (S)-F5 +static CharacterDispatchRoutine escLeftBracket15Semicolon2Routines[] = { + f5KeyRoutine, escFailureRoutine +}; +static CharacterDispatch escLeftBracket15Semicolon2Dispatch = { + 1, "~", escLeftBracket15Semicolon2Routines +}; +static char32_t escLeftBracket15Semicolon2Routine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + thisKeyMetaCtrl |= Replxx::KEY::BASE_SHIFT; + return doDispatch(c, escLeftBracket15Semicolon2Dispatch); +} + +// (C)-F5 +static CharacterDispatchRoutine escLeftBracket15Semicolon5Routines[] = { + f5KeyRoutine, escFailureRoutine +}; +static CharacterDispatch escLeftBracket15Semicolon5Dispatch = { + 1, "~", escLeftBracket15Semicolon5Routines +}; +static char32_t escLeftBracket15Semicolon5Routine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + thisKeyMetaCtrl |= Replxx::KEY::BASE_CONTROL; + return doDispatch(c, escLeftBracket15Semicolon5Dispatch); +} + +static CharacterDispatchRoutine escLeftBracket15SemicolonRoutines[] = { + escLeftBracket15Semicolon2Routine, escLeftBracket15Semicolon5Routine, escFailureRoutine +}; +static CharacterDispatch escLeftBracket15SemicolonDispatch = { + 2, "25", escLeftBracket15SemicolonRoutines +}; +static char32_t escLeftBracket15SemicolonRoutine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + return doDispatch(c, escLeftBracket15SemicolonDispatch); +} + +static CharacterDispatchRoutine escLeftBracket15Routines[] = { + f5KeyRoutine, escLeftBracket15SemicolonRoutine, escFailureRoutine +}; +static CharacterDispatch escLeftBracket15Dispatch = { + 2, "~;", escLeftBracket15Routines +}; +static char32_t escLeftBracket15Routine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + return doDispatch(c, escLeftBracket15Dispatch); +} + +// (S)-F6 +static CharacterDispatchRoutine escLeftBracket17Semicolon2Routines[] = { + f6KeyRoutine, escFailureRoutine +}; +static CharacterDispatch escLeftBracket17Semicolon2Dispatch = { + 1, "~", escLeftBracket17Semicolon2Routines +}; +static char32_t escLeftBracket17Semicolon2Routine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + thisKeyMetaCtrl |= Replxx::KEY::BASE_SHIFT; + return doDispatch(c, escLeftBracket17Semicolon2Dispatch); +} + +// (C)-F6 +static CharacterDispatchRoutine escLeftBracket17Semicolon5Routines[] = { + f6KeyRoutine, escFailureRoutine +}; +static CharacterDispatch escLeftBracket17Semicolon5Dispatch = { + 1, "~", escLeftBracket17Semicolon5Routines +}; +static char32_t escLeftBracket17Semicolon5Routine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + thisKeyMetaCtrl |= Replxx::KEY::BASE_CONTROL; + return doDispatch(c, escLeftBracket17Semicolon5Dispatch); +} + +static CharacterDispatchRoutine escLeftBracket17SemicolonRoutines[] = { + escLeftBracket17Semicolon2Routine, escLeftBracket17Semicolon5Routine, escFailureRoutine +}; +static CharacterDispatch escLeftBracket17SemicolonDispatch = { + 2, "25", escLeftBracket17SemicolonRoutines +}; +static char32_t escLeftBracket17SemicolonRoutine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + return doDispatch(c, escLeftBracket17SemicolonDispatch); +} + +static CharacterDispatchRoutine escLeftBracket17Routines[] = { + f6KeyRoutine, escLeftBracket17SemicolonRoutine, escFailureRoutine +}; +static CharacterDispatch escLeftBracket17Dispatch = { + 2, "~;", escLeftBracket17Routines +}; +static char32_t escLeftBracket17Routine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + return doDispatch(c, escLeftBracket17Dispatch); +} + +// (S)-F7 +static CharacterDispatchRoutine escLeftBracket18Semicolon2Routines[] = { + f7KeyRoutine, escFailureRoutine +}; +static CharacterDispatch escLeftBracket18Semicolon2Dispatch = { + 1, "~", escLeftBracket18Semicolon2Routines +}; +static char32_t escLeftBracket18Semicolon2Routine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + thisKeyMetaCtrl |= Replxx::KEY::BASE_SHIFT; + return doDispatch(c, escLeftBracket18Semicolon2Dispatch); +} + +// (C)-F7 +static CharacterDispatchRoutine escLeftBracket18Semicolon5Routines[] = { + f7KeyRoutine, escFailureRoutine +}; +static CharacterDispatch escLeftBracket18Semicolon5Dispatch = { + 1, "~", escLeftBracket18Semicolon5Routines +}; +static char32_t escLeftBracket18Semicolon5Routine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + thisKeyMetaCtrl |= Replxx::KEY::BASE_CONTROL; + return doDispatch(c, escLeftBracket18Semicolon5Dispatch); +} + +static CharacterDispatchRoutine escLeftBracket18SemicolonRoutines[] = { + escLeftBracket18Semicolon2Routine, escLeftBracket18Semicolon5Routine, escFailureRoutine +}; +static CharacterDispatch escLeftBracket18SemicolonDispatch = { + 2, "25", escLeftBracket18SemicolonRoutines +}; +static char32_t escLeftBracket18SemicolonRoutine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + return doDispatch(c, escLeftBracket18SemicolonDispatch); +} + +static CharacterDispatchRoutine escLeftBracket18Routines[] = { + f7KeyRoutine, escLeftBracket18SemicolonRoutine, escFailureRoutine +}; +static CharacterDispatch escLeftBracket18Dispatch = { + 2, "~;", escLeftBracket18Routines +}; +static char32_t escLeftBracket18Routine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + return doDispatch(c, escLeftBracket18Dispatch); +} + +// (S)-F8 +static CharacterDispatchRoutine escLeftBracket19Semicolon2Routines[] = { + f8KeyRoutine, escFailureRoutine +}; +static CharacterDispatch escLeftBracket19Semicolon2Dispatch = { + 1, "~", escLeftBracket19Semicolon2Routines +}; +static char32_t escLeftBracket19Semicolon2Routine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + thisKeyMetaCtrl |= Replxx::KEY::BASE_SHIFT; + return doDispatch(c, escLeftBracket19Semicolon2Dispatch); +} + +// (C)-F8 +static CharacterDispatchRoutine escLeftBracket19Semicolon5Routines[] = { + f8KeyRoutine, escFailureRoutine +}; +static CharacterDispatch escLeftBracket19Semicolon5Dispatch = { + 1, "~", escLeftBracket19Semicolon5Routines +}; +static char32_t escLeftBracket19Semicolon5Routine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + thisKeyMetaCtrl |= Replxx::KEY::BASE_CONTROL; + return doDispatch(c, escLeftBracket19Semicolon5Dispatch); +} + +static CharacterDispatchRoutine escLeftBracket19SemicolonRoutines[] = { + escLeftBracket19Semicolon2Routine, escLeftBracket19Semicolon5Routine, escFailureRoutine +}; +static CharacterDispatch escLeftBracket19SemicolonDispatch = { + 2, "25", escLeftBracket19SemicolonRoutines +}; +static char32_t escLeftBracket19SemicolonRoutine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + return doDispatch(c, escLeftBracket19SemicolonDispatch); +} + +static CharacterDispatchRoutine escLeftBracket19Routines[] = { + f8KeyRoutine, escLeftBracket19SemicolonRoutine, escFailureRoutine +}; +static CharacterDispatch escLeftBracket19Dispatch = { + 2, "~;", escLeftBracket19Routines +}; +static char32_t escLeftBracket19Routine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + return doDispatch(c, escLeftBracket19Dispatch); +} + +// Handle ESC [ 1 <more stuff> escape sequences +// +static CharacterDispatchRoutine escLeftBracket1Routines[] = { + homeKeyRoutine, escLeftBracket1SemicolonRoutine, + escLeftBracket15Routine, + escLeftBracket17Routine, + escLeftBracket18Routine, + escLeftBracket19Routine, + escFailureRoutine +}; +static CharacterDispatch escLeftBracket1Dispatch = { + 6, "~;5789", escLeftBracket1Routines +}; + +// Handle ESC [ 2 <more stuff> escape sequences +// + +// (S)-F9 +static CharacterDispatchRoutine escLeftBracket20Semicolon2Routines[] = { + f9KeyRoutine, escFailureRoutine +}; +static CharacterDispatch escLeftBracket20Semicolon2Dispatch = { + 1, "~", escLeftBracket20Semicolon2Routines +}; +static char32_t escLeftBracket20Semicolon2Routine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + thisKeyMetaCtrl |= Replxx::KEY::BASE_SHIFT; + return doDispatch(c, escLeftBracket20Semicolon2Dispatch); +} + +// (C)-F9 +static CharacterDispatchRoutine escLeftBracket20Semicolon5Routines[] = { + f9KeyRoutine, escFailureRoutine +}; +static CharacterDispatch escLeftBracket20Semicolon5Dispatch = { + 1, "~", escLeftBracket20Semicolon5Routines +}; +static char32_t escLeftBracket20Semicolon5Routine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + thisKeyMetaCtrl |= Replxx::KEY::BASE_CONTROL; + return doDispatch(c, escLeftBracket20Semicolon5Dispatch); +} + +static CharacterDispatchRoutine escLeftBracket20SemicolonRoutines[] = { + escLeftBracket20Semicolon2Routine, escLeftBracket20Semicolon5Routine, escFailureRoutine +}; +static CharacterDispatch escLeftBracket20SemicolonDispatch = { + 2, "25", escLeftBracket20SemicolonRoutines +}; +static char32_t escLeftBracket20SemicolonRoutine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + return doDispatch(c, escLeftBracket20SemicolonDispatch); +} + +static CharacterDispatchRoutine escLeftBracket20Routines[] = { + f9KeyRoutine, escLeftBracket20SemicolonRoutine, escFailureRoutine +}; +static CharacterDispatch escLeftBracket20Dispatch = { + 2, "~;", escLeftBracket20Routines +}; +static char32_t escLeftBracket20Routine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + return doDispatch(c, escLeftBracket20Dispatch); +} + +// (S)-F10 +static CharacterDispatchRoutine escLeftBracket21Semicolon2Routines[] = { + f10KeyRoutine, escFailureRoutine +}; +static CharacterDispatch escLeftBracket21Semicolon2Dispatch = { + 1, "~", escLeftBracket21Semicolon2Routines +}; +static char32_t escLeftBracket21Semicolon2Routine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + thisKeyMetaCtrl |= Replxx::KEY::BASE_SHIFT; + return doDispatch(c, escLeftBracket21Semicolon2Dispatch); +} + +// (C)-F10 +static CharacterDispatchRoutine escLeftBracket21Semicolon5Routines[] = { + f10KeyRoutine, escFailureRoutine +}; +static CharacterDispatch escLeftBracket21Semicolon5Dispatch = { + 1, "~", escLeftBracket21Semicolon5Routines +}; +static char32_t escLeftBracket21Semicolon5Routine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + thisKeyMetaCtrl |= Replxx::KEY::BASE_CONTROL; + return doDispatch(c, escLeftBracket21Semicolon5Dispatch); +} + +static CharacterDispatchRoutine escLeftBracket21SemicolonRoutines[] = { + escLeftBracket21Semicolon2Routine, escLeftBracket21Semicolon5Routine, escFailureRoutine +}; +static CharacterDispatch escLeftBracket21SemicolonDispatch = { + 2, "25", escLeftBracket21SemicolonRoutines +}; +static char32_t escLeftBracket21SemicolonRoutine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + return doDispatch(c, escLeftBracket21SemicolonDispatch); +} + +static CharacterDispatchRoutine escLeftBracket21Routines[] = { + f10KeyRoutine, escLeftBracket21SemicolonRoutine, escFailureRoutine +}; +static CharacterDispatch escLeftBracket21Dispatch = { + 2, "~;", escLeftBracket21Routines +}; +static char32_t escLeftBracket21Routine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + return doDispatch(c, escLeftBracket21Dispatch); +} + +// (S)-F11 +static CharacterDispatchRoutine escLeftBracket23Semicolon2Routines[] = { + f11KeyRoutine, escFailureRoutine +}; +static CharacterDispatch escLeftBracket23Semicolon2Dispatch = { + 1, "~", escLeftBracket23Semicolon2Routines +}; +static char32_t escLeftBracket23Semicolon2Routine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + thisKeyMetaCtrl |= Replxx::KEY::BASE_SHIFT; + return doDispatch(c, escLeftBracket23Semicolon2Dispatch); +} + +// (C)-F11 +static CharacterDispatchRoutine escLeftBracket23Semicolon5Routines[] = { + f11KeyRoutine, escFailureRoutine +}; +static CharacterDispatch escLeftBracket23Semicolon5Dispatch = { + 1, "~", escLeftBracket23Semicolon5Routines +}; +static char32_t escLeftBracket23Semicolon5Routine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + thisKeyMetaCtrl |= Replxx::KEY::BASE_CONTROL; + return doDispatch(c, escLeftBracket23Semicolon5Dispatch); +} + +static CharacterDispatchRoutine escLeftBracket23SemicolonRoutines[] = { + escLeftBracket23Semicolon2Routine, escLeftBracket23Semicolon5Routine, escFailureRoutine +}; +static CharacterDispatch escLeftBracket23SemicolonDispatch = { + 2, "25", escLeftBracket23SemicolonRoutines +}; +static char32_t escLeftBracket23SemicolonRoutine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + return doDispatch(c, escLeftBracket23SemicolonDispatch); +} + +static CharacterDispatchRoutine escLeftBracket23Routines[] = { + f11KeyRoutine, escLeftBracket23SemicolonRoutine, escFailureRoutine +}; +static CharacterDispatch escLeftBracket23Dispatch = { + 2, "~;", escLeftBracket23Routines +}; +static char32_t escLeftBracket23Routine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + return doDispatch(c, escLeftBracket23Dispatch); +} + +// (S)-F12 +static CharacterDispatchRoutine escLeftBracket24Semicolon2Routines[] = { + f12KeyRoutine, escFailureRoutine +}; +static CharacterDispatch escLeftBracket24Semicolon2Dispatch = { + 1, "~", escLeftBracket24Semicolon2Routines +}; +static char32_t escLeftBracket24Semicolon2Routine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + thisKeyMetaCtrl |= Replxx::KEY::BASE_SHIFT; + return doDispatch(c, escLeftBracket24Semicolon2Dispatch); +} + +// (C)-F12 +static CharacterDispatchRoutine escLeftBracket24Semicolon5Routines[] = { + f12KeyRoutine, escFailureRoutine +}; +static CharacterDispatch escLeftBracket24Semicolon5Dispatch = { + 1, "~", escLeftBracket24Semicolon5Routines +}; +static char32_t escLeftBracket24Semicolon5Routine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + thisKeyMetaCtrl |= Replxx::KEY::BASE_CONTROL; + return doDispatch(c, escLeftBracket24Semicolon5Dispatch); +} + +static CharacterDispatchRoutine escLeftBracket24SemicolonRoutines[] = { + escLeftBracket24Semicolon2Routine, escLeftBracket24Semicolon5Routine, escFailureRoutine +}; +static CharacterDispatch escLeftBracket24SemicolonDispatch = { + 2, "25", escLeftBracket24SemicolonRoutines +}; +static char32_t escLeftBracket24SemicolonRoutine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + return doDispatch(c, escLeftBracket24SemicolonDispatch); +} + +static CharacterDispatchRoutine escLeftBracket24Routines[] = { + f12KeyRoutine, escLeftBracket24SemicolonRoutine, escFailureRoutine +}; +static CharacterDispatch escLeftBracket24Dispatch = { + 2, "~;", escLeftBracket24Routines +}; +static char32_t escLeftBracket24Routine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + return doDispatch(c, escLeftBracket24Dispatch); +} + +// Handle ESC [ 2 <more stuff> escape sequences +// +static CharacterDispatchRoutine escLeftBracket2Routines[] = { + insertKeyRoutine, + escLeftBracket20Routine, + escLeftBracket21Routine, + escLeftBracket23Routine, + escLeftBracket24Routine, + escFailureRoutine +}; +static CharacterDispatch escLeftBracket2Dispatch = { + 5, "~0134", escLeftBracket2Routines +}; + +// Handle ESC [ 3 <more stuff> escape sequences +// +static CharacterDispatchRoutine escLeftBracket3Routines[] = { + deleteKeyRoutine, escFailureRoutine +}; + +static CharacterDispatch escLeftBracket3Dispatch = { + 1, "~", escLeftBracket3Routines +}; + +// Handle ESC [ 4 <more stuff> escape sequences +// +static CharacterDispatchRoutine escLeftBracket4Routines[] = { + endKeyRoutine, escFailureRoutine +}; +static CharacterDispatch escLeftBracket4Dispatch = { + 1, "~", escLeftBracket4Routines +}; + +// Handle ESC [ 5 <more stuff> escape sequences +// +static CharacterDispatchRoutine escLeftBracket5Semicolon5Routines[] = { + pageUpKeyRoutine, escFailureRoutine +}; +static CharacterDispatch escLeftBracket5Semicolon5Dispatch = { + 1, "~", escLeftBracket5Semicolon5Routines +}; +static char32_t escLeftBracket5Semicolon5Routine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + thisKeyMetaCtrl |= Replxx::KEY::BASE_CONTROL; + return doDispatch(c, escLeftBracket5Semicolon5Dispatch); +} +static CharacterDispatchRoutine escLeftBracket5SemicolonRoutines[] = { + escLeftBracket5Semicolon5Routine, + escFailureRoutine +}; +static CharacterDispatch escLeftBracket5SemicolonDispatch = { + 1, "5", escLeftBracket5SemicolonRoutines +}; +static char32_t escLeftBracket5SemicolonRoutine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + return doDispatch(c, escLeftBracket5SemicolonDispatch); +} + +static CharacterDispatchRoutine escLeftBracket5Routines[] = { + pageUpKeyRoutine, escLeftBracket5SemicolonRoutine, escFailureRoutine +}; +static CharacterDispatch escLeftBracket5Dispatch = { + 2, "~;", escLeftBracket5Routines +}; + +// Handle ESC [ 6 <more stuff> escape sequences +// +static CharacterDispatchRoutine escLeftBracket6Semicolon5Routines[] = { + pageDownKeyRoutine, escFailureRoutine +}; +static CharacterDispatch escLeftBracket6Semicolon5Dispatch = { + 1, "~", escLeftBracket6Semicolon5Routines +}; +static char32_t escLeftBracket6Semicolon5Routine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + thisKeyMetaCtrl |= Replxx::KEY::BASE_CONTROL; + return doDispatch(c, escLeftBracket6Semicolon5Dispatch); +} +static CharacterDispatchRoutine escLeftBracket6SemicolonRoutines[] = { + escLeftBracket6Semicolon5Routine, + escFailureRoutine +}; +static CharacterDispatch escLeftBracket6SemicolonDispatch = { + 1, "5", escLeftBracket6SemicolonRoutines +}; +static char32_t escLeftBracket6SemicolonRoutine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + return doDispatch(c, escLeftBracket6SemicolonDispatch); +} + +static CharacterDispatchRoutine escLeftBracket6Routines[] = { + pageDownKeyRoutine, escLeftBracket6SemicolonRoutine, escFailureRoutine +}; +static CharacterDispatch escLeftBracket6Dispatch = { + 2, "~;", escLeftBracket6Routines +}; + +// Handle ESC [ 7 <more stuff> escape sequences +// +static CharacterDispatchRoutine escLeftBracket7Routines[] = { + homeKeyRoutine, escFailureRoutine +}; +static CharacterDispatch escLeftBracket7Dispatch = { + 1, "~", escLeftBracket7Routines +}; + +// Handle ESC [ 8 <more stuff> escape sequences +// +static CharacterDispatchRoutine escLeftBracket8Routines[] = { + endKeyRoutine, escFailureRoutine +}; +static CharacterDispatch escLeftBracket8Dispatch = { + 1, "~", escLeftBracket8Routines +}; + +// Handle ESC [ <digit> escape sequences +// +static char32_t escLeftBracket0Routine(char32_t c) { + return escFailureRoutine(c); +} +static char32_t escLeftBracket1Routine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + return doDispatch(c, escLeftBracket1Dispatch); +} +static char32_t escLeftBracket2Routine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + return doDispatch(c, escLeftBracket2Dispatch); +} +static char32_t escLeftBracket3Routine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + return doDispatch(c, escLeftBracket3Dispatch); +} +static char32_t escLeftBracket4Routine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + return doDispatch(c, escLeftBracket4Dispatch); +} +static char32_t escLeftBracket5Routine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + return doDispatch(c, escLeftBracket5Dispatch); +} +static char32_t escLeftBracket6Routine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + return doDispatch(c, escLeftBracket6Dispatch); +} +static char32_t escLeftBracket7Routine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + return doDispatch(c, escLeftBracket7Dispatch); +} +static char32_t escLeftBracket8Routine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + return doDispatch(c, escLeftBracket8Dispatch); +} +static char32_t escLeftBracket9Routine(char32_t c) { + return escFailureRoutine(c); +} + +// Handle ESC [ <more stuff> escape sequences +// +static CharacterDispatchRoutine escLeftBracketRoutines[] = { + upArrowKeyRoutine, downArrowKeyRoutine, rightArrowKeyRoutine, + leftArrowKeyRoutine, homeKeyRoutine, endKeyRoutine, + shiftTabRoutine, + escLeftBracket0Routine, escLeftBracket1Routine, escLeftBracket2Routine, + escLeftBracket3Routine, escLeftBracket4Routine, escLeftBracket5Routine, + escLeftBracket6Routine, escLeftBracket7Routine, escLeftBracket8Routine, + escLeftBracket9Routine, escFailureRoutine +}; +static CharacterDispatch escLeftBracketDispatch = {17, "ABCDHFZ0123456789", + escLeftBracketRoutines}; + +// Handle ESC O <char> escape sequences +// +static CharacterDispatchRoutine escORoutines[] = { + upArrowKeyRoutine, downArrowKeyRoutine, rightArrowKeyRoutine, + leftArrowKeyRoutine, homeKeyRoutine, endKeyRoutine, + f1KeyRoutine, f2KeyRoutine, f3KeyRoutine, + f4KeyRoutine, + ctrlUpArrowKeyRoutine, ctrlDownArrowKeyRoutine, ctrlRightArrowKeyRoutine, + ctrlLeftArrowKeyRoutine, escFailureRoutine +}; +static CharacterDispatch escODispatch = {14, "ABCDHFPQRSabcd", escORoutines}; + +// Initial ESC dispatch -- could be a Meta prefix or the start of an escape +// sequence +// +static char32_t escLeftBracketRoutine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + return doDispatch(c, escLeftBracketDispatch); +} +static char32_t escORoutine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + return doDispatch(c, escODispatch); +} +static char32_t setMetaRoutine(char32_t c); // need forward reference +static CharacterDispatchRoutine escRoutines[] = { + escLeftBracketRoutine, escORoutine, setMetaRoutine +}; +static CharacterDispatch escDispatch = {2, "[O", escRoutines}; + +// Initial dispatch -- we are not in the middle of anything yet +// +static char32_t escRoutine(char32_t c) { + c = read_unicode_character(); + if (c == 0) return 0; + return doDispatch(c, escDispatch); +} +static CharacterDispatchRoutine initialRoutines[] = { + escRoutine, deleteCharRoutine, normalKeyRoutine +}; +static CharacterDispatch initialDispatch = {2, "\x1B\x7F", initialRoutines}; + +// Special handling for the ESC key because it does double duty +// +static char32_t setMetaRoutine(char32_t c) { + thisKeyMetaCtrl = Replxx::KEY::BASE_META; + if (c == 0x1B) { // another ESC, stay in ESC processing mode + c = read_unicode_character(); + if (c == 0) return 0; + return doDispatch(c, escDispatch); + } + return doDispatch(c, initialDispatch); +} + +char32_t doDispatch(char32_t c) { + EscapeSequenceProcessing::thisKeyMetaCtrl = 0; // no modifiers yet at initialDispatch + return doDispatch(c, initialDispatch); +} + +} // namespace EscapeSequenceProcessing // move these out of global namespace + +} + +#endif /* #ifndef _WIN32 */ + diff --git a/contrib/replxx/src/escape.hxx b/contrib/replxx/src/escape.hxx new file mode 100644 index 000000000..659739532 --- /dev/null +++ b/contrib/replxx/src/escape.hxx @@ -0,0 +1,37 @@ +#ifndef REPLXX_ESCAPE_HXX_INCLUDED +#define REPLXX_ESCAPE_HXX_INCLUDED 1 + +namespace replxx { + +namespace EscapeSequenceProcessing { + +// This is a typedef for the routine called by doDispatch(). It takes the +// current character +// as input, does any required processing including reading more characters and +// calling other +// dispatch routines, then eventually returns the final (possibly extended or +// special) character. +// +typedef char32_t (*CharacterDispatchRoutine)(char32_t); + +// This structure is used by doDispatch() to hold a list of characters to test +// for and +// a list of routines to call if the character matches. The dispatch routine +// list is one +// longer than the character list; the final entry is used if no character +// matches. +// +struct CharacterDispatch { + unsigned int len; // length of the chars list + const char* chars; // chars to test + CharacterDispatchRoutine* dispatch; // array of routines to call +}; + +char32_t doDispatch(char32_t c); + +} + +} + +#endif + diff --git a/contrib/replxx/src/history.cxx b/contrib/replxx/src/history.cxx new file mode 100644 index 000000000..6c6eff346 --- /dev/null +++ b/contrib/replxx/src/history.cxx @@ -0,0 +1,148 @@ +#include <fstream> +#include <cstring> + +#ifndef _WIN32 + +#include <unistd.h> +#include <sys/stat.h> + +#endif /* _WIN32 */ + +#include "history.hxx" +#include "utf8string.hxx" + +using namespace std; + +namespace replxx { + +static int const REPLXX_DEFAULT_HISTORY_MAX_LEN( 1000 ); + +History::History( void ) + : _data() + , _maxSize( REPLXX_DEFAULT_HISTORY_MAX_LEN ) + , _maxLineLength( 0 ) + , _index( 0 ) + , _previousIndex( -2 ) + , _recallMostRecent( false ) { +} + +void History::add( UnicodeString const& line ) { + if ( ( _maxSize > 0 ) && ( _data.empty() || ( line != _data.back() ) ) ) { + if ( size() > _maxSize ) { + _data.erase( _data.begin() ); + if ( -- _previousIndex < -1 ) { + _previousIndex = -2; + } + } + if ( static_cast<int>( line.length() ) > _maxLineLength ) { + _maxLineLength = static_cast<int>( line.length() ); + } + _data.push_back( line ); + } +} + +int History::save( std::string const& filename ) { +#ifndef _WIN32 + mode_t old_umask = umask( S_IXUSR | S_IRWXG| S_IRWXO ); +#endif + ofstream histFile( filename ); + if ( ! histFile ) { + return ( -1 ); + } +#ifndef _WIN32 + umask( old_umask ); + chmod( filename.c_str(), S_IRUSR | S_IWUSR ); +#endif + Utf8String utf8; + for ( UnicodeString const& h : _data ) { + if ( ! h.is_empty() ) { + utf8.assign( h ); + histFile << utf8.get() << endl; + } + } + return ( 0 ); +} + +int History::load( std::string const& filename ) { + ifstream histFile( filename ); + if ( ! histFile ) { + return ( -1 ); + } + string line; + while ( getline( histFile, line ).good() ) { + string::size_type eol( line.find_first_of( "\r\n" ) ); + if ( eol != string::npos ) { + line.erase( eol ); + } + if ( ! line.empty() ) { + add( UnicodeString( line ) ); + } + } + return 0; +} + +void History::set_max_size( int size_ ) { + if ( size_ >= 0 ) { + _maxSize = size_; + int curSize( size() ); + if ( _maxSize < curSize ) { + _data.erase( _data.begin(), _data.begin() + ( curSize - _maxSize ) ); + } + } +} + +void History::reset_pos( int pos_ ) { + if ( pos_ == -1 ) { + _index = size() - 1; + _recallMostRecent = false; + } else { + _index = pos_; + } +} + +bool History::move( bool up_ ) { + if (_previousIndex != -2 && ! up_ ) { + _index = 1 + _previousIndex; // emulate Windows down-arrow + } else { + _index += up_ ? -1 : 1; + } + _previousIndex = -2; + if (_index < 0) { + _index = 0; + return ( false ); + } else if ( _index >= size() ) { + _index = size() - 1; + return ( false ); + } + _recallMostRecent = true; + return ( true ); +} + +void History::jump( bool start_ ) { + _index = start_ ? 0 : size() - 1; + _previousIndex = -2; + _recallMostRecent = true; +} + +bool History::common_prefix_search( UnicodeString const& prefix_, int prefixSize_, bool back_ ) { + int direct( size() + ( back_ ? -1 : 1 ) ); + int i( ( _index + direct ) % _data.size() ); + while ( i != _index ) { + if ( _data[i].starts_with( prefix_.begin(), prefix_.begin() + prefixSize_ ) ) { + _index = i; + _previousIndex = -2; + _recallMostRecent = true; + return ( true ); + } + i += direct; + i %= _data.size(); + } + return ( false ); +} + +UnicodeString const& History::operator[] ( int idx_ ) const { + return ( _data[ idx_ ] ); +} + +} + diff --git a/contrib/replxx/src/history.hxx b/contrib/replxx/src/history.hxx new file mode 100644 index 000000000..33aed148a --- /dev/null +++ b/contrib/replxx/src/history.hxx @@ -0,0 +1,73 @@ +#ifndef REPLXX_HISTORY_HXX_INCLUDED +#define REPLXX_HISTORY_HXX_INCLUDED 1 + +#include <vector> + +#include "unicodestring.hxx" +#include "conversion.hxx" + +namespace replxx { + +class History { +public: + typedef std::vector<UnicodeString> lines_t; +private: + lines_t _data; + int _maxSize; + int _maxLineLength; + int _index; + int _previousIndex; + bool _recallMostRecent; +public: + History( void ); + void add( UnicodeString const& line ); + int save( std::string const& filename ); + int load( std::string const& filename ); + void set_max_size( int len ); + void reset_pos( int = -1 ); + UnicodeString const& operator[] ( int ) const; + void set_recall_most_recent( void ) { + _recallMostRecent = true; + } + void reset_recall_most_recent( void ) { + _recallMostRecent = false; + } + void drop_last( void ) { + _data.pop_back(); + } + void commit_index( void ) { + _previousIndex = _recallMostRecent ? _index : -2; + } + int current_pos( void ) const { + return ( _index ); + } + bool is_last( void ) const { + return ( _index == ( size() - 1 ) ); + } + bool is_empty( void ) const { + return ( _data.empty() ); + } + void update_last( UnicodeString const& line_ ) { + _data.back() = line_; + } + bool move( bool ); + UnicodeString const& current( void ) const { + return ( _data[_index] ); + } + void jump( bool ); + bool common_prefix_search( UnicodeString const&, int, bool ); + int size( void ) const { + return ( static_cast<int>( _data.size() ) ); + } + int max_line_length( void ) { + return ( _maxLineLength ); + } +private: + History( History const& ) = delete; + History& operator = ( History const& ) = delete; +}; + +} + +#endif + diff --git a/contrib/replxx/src/io.cxx b/contrib/replxx/src/io.cxx new file mode 100644 index 000000000..a09886701 --- /dev/null +++ b/contrib/replxx/src/io.cxx @@ -0,0 +1,674 @@ +#include <memory> +#include <cerrno> +#include <cstdlib> +#include <cstring> +#include <array> + +#ifdef _WIN32 + +#include <conio.h> +#include <windows.h> +#include <io.h> +#define isatty _isatty +#define strcasecmp _stricmp +#define strdup _strdup +#define write _write +#define STDIN_FILENO 0 + +#include "windows.hxx" + +#else /* _WIN32 */ + +#include <unistd.h> +#include <sys/ioctl.h> +#include <sys/select.h> +#include <fcntl.h> + +#endif /* _WIN32 */ + +#include "io.hxx" +#include "conversion.hxx" +#include "escape.hxx" +#include "replxx.hxx" +#include "util.hxx" + +using namespace std; + +namespace replxx { + +namespace tty { + +bool is_a_tty( int fd_ ) { + bool aTTY( isatty( fd_ ) != 0 ); +#ifdef _WIN32 + do { + if ( aTTY ) { + break; + } + HANDLE h( (HANDLE)_get_osfhandle( fd_ ) ); + if ( h == INVALID_HANDLE_VALUE ) { + break; + } + DWORD st( 0 ); + if ( ! GetConsoleMode( h, &st ) ) { + break; + } + aTTY = true; + } while ( false ); +#endif + return ( aTTY ); +} + +bool in( is_a_tty( 0 ) ); +bool out( is_a_tty( 1 ) ); + +} + +Terminal::Terminal( void ) +#ifdef _WIN32 + : _consoleOut( INVALID_HANDLE_VALUE ) + , _consoleIn( INVALID_HANDLE_VALUE ) + , _oldMode() + , _oldDisplayAttribute() + , _inputCodePage( GetConsoleCP() ) + , _outputCodePage( GetConsoleOutputCP() ) + , _interrupt( INVALID_HANDLE_VALUE ) + , _events() +#else + : _origTermios() + , _interrupt() +#endif + , _rawMode( false ) { +#ifdef _WIN32 + _interrupt = CreateEvent( nullptr, true, false, TEXT( "replxx_interrupt_event" ) ); +#else + static_cast<void>( ::pipe( _interrupt ) == 0 ); +#endif +} + +Terminal::~Terminal( void ) { + if ( _rawMode ) { + disable_raw_mode(); + } +#ifdef _WIN32 + CloseHandle( _interrupt ); +#else + static_cast<void>( ::close( _interrupt[0] ) == 0 ); + static_cast<void>( ::close( _interrupt[1] ) == 0 ); +#endif +} + +void Terminal::write32( char32_t const* text32, int len32 ) { + int len8 = 4 * len32 + 1; + unique_ptr<char[]> text8(new char[len8]); + int count8 = 0; + + copyString32to8(text8.get(), len8, text32, len32, &count8); + int nWritten( 0 ); +#ifdef _WIN32 + nWritten = win_write( text8.get(), count8 ); +#else + nWritten = write( 1, text8.get(), count8 ); +#endif + if ( nWritten != count8 ) { + throw std::runtime_error( "write failed" ); + } + return; +} + +void Terminal::write8( char const* data_, int size_ ) { +#ifdef _WIN32 + int nWritten( win_write( data_, size_ ) ); +#else + int nWritten( write( 1, data_, size_ ) ); +#endif + if ( nWritten != size_ ) { + throw std::runtime_error( "write failed" ); + } + return; +} + +int Terminal::get_screen_columns( void ) { + int cols( 0 ); +#ifdef _WIN32 + CONSOLE_SCREEN_BUFFER_INFO inf; + GetConsoleScreenBufferInfo( _consoleOut, &inf ); + cols = inf.dwSize.X; +#else + struct winsize ws; + cols = ( ioctl( 1, TIOCGWINSZ, &ws ) == -1 ) ? 80 : ws.ws_col; +#endif + // cols is 0 in certain circumstances like inside debugger, which creates + // further issues + return ( cols > 0 ) ? cols : 80; +} + +int Terminal::get_screen_rows( void ) { + int rows; +#ifdef _WIN32 + CONSOLE_SCREEN_BUFFER_INFO inf; + GetConsoleScreenBufferInfo( _consoleOut, &inf ); + rows = 1 + inf.srWindow.Bottom - inf.srWindow.Top; +#else + struct winsize ws; + rows = (ioctl(1, TIOCGWINSZ, &ws) == -1) ? 24 : ws.ws_row; +#endif + return (rows > 0) ? rows : 24; +} + +namespace { +inline int notty( void ) { + errno = ENOTTY; + return ( -1 ); +} +} + +int Terminal::enable_raw_mode( void ) { + if ( ! _rawMode ) { +#ifdef _WIN32 + _consoleIn = GetStdHandle( STD_INPUT_HANDLE ); + _consoleOut = GetStdHandle( STD_OUTPUT_HANDLE ); + SetConsoleCP( 65001 ); + SetConsoleOutputCP( 65001 ); + GetConsoleMode( _consoleIn, &_oldMode ); + SetConsoleMode( + _consoleIn, + _oldMode & ~( ENABLE_LINE_INPUT | ENABLE_ECHO_INPUT | ENABLE_PROCESSED_INPUT ) + ); +#else + struct termios raw; + + if ( ! tty::in ) { + return ( notty() ); + } + if ( tcgetattr( 0, &_origTermios ) == -1 ) { + return ( notty() ); + } + + raw = _origTermios; /* modify the original mode */ + /* input modes: no break, no CR to NL, no parity check, no strip char, + * no start/stop output control. */ + raw.c_iflag &= ~(BRKINT | ICRNL | INPCK | ISTRIP | IXON); + /* output modes - disable post processing */ + // this is wrong, we don't want raw output, it turns newlines into straight + // linefeeds + // raw.c_oflag &= ~(OPOST); + /* control modes - set 8 bit chars */ + raw.c_cflag |= (CS8); + /* local modes - echoing off, canonical off, no extended functions, + * no signal chars (^Z,^C) */ + raw.c_lflag &= ~(ECHO | ICANON | IEXTEN | ISIG); + /* control chars - set return condition: min number of bytes and timer. + * We want read to return every single byte, without timeout. */ + raw.c_cc[VMIN] = 1; + raw.c_cc[VTIME] = 0; /* 1 byte, no timer */ + + /* put terminal in raw mode after flushing */ + if ( tcsetattr(0, TCSADRAIN, &raw) < 0 ) { + return ( notty() ); + } +#endif + _rawMode = true; + } + return 0; +} + +void Terminal::disable_raw_mode(void) { + if ( _rawMode ) { +#ifdef _WIN32 + SetConsoleMode( _consoleIn, _oldMode ); + SetConsoleCP( _inputCodePage ); + SetConsoleOutputCP( _outputCodePage ); + _consoleIn = INVALID_HANDLE_VALUE; + _consoleOut = INVALID_HANDLE_VALUE; +#else + if ( tcsetattr( 0, TCSADRAIN, &_origTermios ) == -1 ) { + return; + } +#endif + _rawMode = false; + } +} + +#ifndef _WIN32 + +/** + * Read a UTF-8 sequence from the non-Windows keyboard and return the Unicode + * (char32_t) character it encodes + * + * @return char32_t Unicode character + */ +char32_t read_unicode_character(void) { + static char8_t utf8String[5]; + static size_t utf8Count = 0; + while (true) { + char8_t c; + + /* Continue reading if interrupted by signal. */ + ssize_t nread; + do { + nread = read( STDIN_FILENO, &c, 1 ); + } while ((nread == -1) && (errno == EINTR)); + + if (nread <= 0) return 0; + if (c <= 0x7F || locale::is8BitEncoding) { // short circuit ASCII + utf8Count = 0; + return c; + } else if (utf8Count < sizeof(utf8String) - 1) { + utf8String[utf8Count++] = c; + utf8String[utf8Count] = 0; + char32_t unicodeChar[2]; + int ucharCount( 0 ); + ConversionResult res = copyString8to32(unicodeChar, 2, ucharCount, utf8String); + if (res == conversionOK && ucharCount) { + utf8Count = 0; + return unicodeChar[0]; + } + } else { + utf8Count = 0; // this shouldn't happen: got four bytes but no UTF-8 character + } + } +} + +#endif // #ifndef _WIN32 + +void beep() { + fprintf(stderr, "\x7"); // ctrl-G == bell/beep + fflush(stderr); +} + +// replxx_read_char -- read a keystroke or keychord from the keyboard, and translate it +// into an encoded "keystroke". When convenient, extended keys are translated into their +// simpler Emacs keystrokes, so an unmodified "left arrow" becomes Ctrl-B. +// +// A return value of zero means "no input available", and a return value of -1 +// means "invalid key". +// +char32_t Terminal::read_char( void ) { + char32_t c( 0 ); +#ifdef _WIN32 + INPUT_RECORD rec; + DWORD count; + char32_t modifierKeys = 0; + bool escSeen = false; + int highSurrogate( 0 ); + while (true) { + ReadConsoleInputW( _consoleIn, &rec, 1, &count ); +#if __REPLXX_DEBUG__ // helper for debugging keystrokes, display info in the debug "Output" + // window in the debugger + { + if ( rec.EventType == KEY_EVENT ) { + //if ( rec.Event.KeyEvent.uChar.UnicodeChar ) { + char buf[1024]; + sprintf( + buf, + "Unicode character 0x%04X, repeat count %d, virtual keycode 0x%04X, " + "virtual scancode 0x%04X, key %s%s%s%s%s\n", + rec.Event.KeyEvent.uChar.UnicodeChar, + rec.Event.KeyEvent.wRepeatCount, + rec.Event.KeyEvent.wVirtualKeyCode, + rec.Event.KeyEvent.wVirtualScanCode, + rec.Event.KeyEvent.bKeyDown ? "down" : "up", + (rec.Event.KeyEvent.dwControlKeyState & LEFT_CTRL_PRESSED) ? " L-Ctrl" : "", + (rec.Event.KeyEvent.dwControlKeyState & RIGHT_CTRL_PRESSED) ? " R-Ctrl" : "", + (rec.Event.KeyEvent.dwControlKeyState & LEFT_ALT_PRESSED) ? " L-Alt" : "", + (rec.Event.KeyEvent.dwControlKeyState & RIGHT_ALT_PRESSED) ? " R-Alt" : "" + ); + OutputDebugStringA( buf ); + //} + } + } +#endif + if (rec.EventType != KEY_EVENT) { + continue; + } + // Windows provides for entry of characters that are not on your keyboard by + // sending the + // Unicode characters as a "key up" with virtual keycode 0x12 (VK_MENU == + // Alt key) ... + // accept these characters, otherwise only process characters on "key down" + if (!rec.Event.KeyEvent.bKeyDown && + rec.Event.KeyEvent.wVirtualKeyCode != VK_MENU) { + continue; + } + modifierKeys = 0; + // AltGr is encoded as ( LEFT_CTRL_PRESSED | RIGHT_ALT_PRESSED ), so don't + // treat this + // combination as either CTRL or META we just turn off those two bits, so it + // is still + // possible to combine CTRL and/or META with an AltGr key by using + // right-Ctrl and/or + // left-Alt + if ((rec.Event.KeyEvent.dwControlKeyState & + (LEFT_CTRL_PRESSED | RIGHT_ALT_PRESSED)) == + (LEFT_CTRL_PRESSED | RIGHT_ALT_PRESSED)) { + rec.Event.KeyEvent.dwControlKeyState &= + ~(LEFT_CTRL_PRESSED | RIGHT_ALT_PRESSED); + } + if ( rec.Event.KeyEvent.dwControlKeyState & ( RIGHT_CTRL_PRESSED | LEFT_CTRL_PRESSED ) ) { + modifierKeys |= Replxx::KEY::BASE_CONTROL; + } + if ( rec.Event.KeyEvent.dwControlKeyState & ( RIGHT_ALT_PRESSED | LEFT_ALT_PRESSED ) ) { + modifierKeys |= Replxx::KEY::BASE_META; + } + if (escSeen) { + modifierKeys |= Replxx::KEY::BASE_META; + } + int key( rec.Event.KeyEvent.uChar.UnicodeChar ); + if ( key == 0 ) { + switch (rec.Event.KeyEvent.wVirtualKeyCode) { + case VK_LEFT: + return modifierKeys | Replxx::KEY::LEFT; + case VK_RIGHT: + return modifierKeys | Replxx::KEY::RIGHT; + case VK_UP: + return modifierKeys | Replxx::KEY::UP; + case VK_DOWN: + return modifierKeys | Replxx::KEY::DOWN; + case VK_DELETE: + return modifierKeys | Replxx::KEY::DELETE; + case VK_HOME: + return modifierKeys | Replxx::KEY::HOME; + case VK_END: + return modifierKeys | Replxx::KEY::END; + case VK_PRIOR: + return modifierKeys | Replxx::KEY::PAGE_UP; + case VK_NEXT: + return modifierKeys | Replxx::KEY::PAGE_DOWN; + case VK_F1: + return modifierKeys | Replxx::KEY::F1; + case VK_F2: + return modifierKeys | Replxx::KEY::F2; + case VK_F3: + return modifierKeys | Replxx::KEY::F3; + case VK_F4: + return modifierKeys | Replxx::KEY::F4; + case VK_F5: + return modifierKeys | Replxx::KEY::F5; + case VK_F6: + return modifierKeys | Replxx::KEY::F6; + case VK_F7: + return modifierKeys | Replxx::KEY::F7; + case VK_F8: + return modifierKeys | Replxx::KEY::F8; + case VK_F9: + return modifierKeys | Replxx::KEY::F9; + case VK_F10: + return modifierKeys | Replxx::KEY::F10; + case VK_F11: + return modifierKeys | Replxx::KEY::F11; + case VK_F12: + return modifierKeys | Replxx::KEY::F12; + default: + continue; // in raw mode, ReadConsoleInput shows shift, ctrl - ignore them + } + } else if ( key == Replxx::KEY::ESCAPE ) { // ESC, set flag for later + escSeen = true; + continue; + } else if ( ( key >= 0xD800 ) && ( key <= 0xDBFF ) ) { + highSurrogate = key - 0xD800; + continue; + } else { + // we got a real character, return it + if ( ( key >= 0xDC00 ) && ( key <= 0xDFFF ) ) { + key -= 0xDC00; + key |= ( highSurrogate << 10 ); + key += 0x10000; + } + if ( is_control_code( key ) ) { + key += 0x40; + modifierKeys |= Replxx::KEY::BASE_CONTROL; + } + key |= modifierKeys; + highSurrogate = 0; + c = key; + break; + } + } + +#else + c = read_unicode_character(); + if (c == 0) { + return 0; + } + +// If _DEBUG_LINUX_KEYBOARD is set, then ctrl-^ puts us into a keyboard +// debugging mode +// where we print out decimal and decoded values for whatever the "terminal" +// program +// gives us on different keystrokes. Hit ctrl-C to exit this mode. +// +#ifdef __REPLXX_DEBUG__ + if (c == ctrlChar('^')) { // ctrl-^, special debug mode, prints all keys hit, + // ctrl-C to get out + printf( + "\nEntering keyboard debugging mode (on ctrl-^), press ctrl-C to exit " + "this mode\n"); + while (true) { + unsigned char keys[10]; + int ret = read(0, keys, 10); + + if (ret <= 0) { + printf("\nret: %d\n", ret); + } + for (int i = 0; i < ret; ++i) { + char32_t key = static_cast<char32_t>(keys[i]); + char* friendlyTextPtr; + char friendlyTextBuf[10]; + const char* prefixText = (key < 0x80) ? "" : "0x80+"; + char32_t keyCopy = (key < 0x80) ? key : key - 0x80; + if (keyCopy >= '!' && keyCopy <= '~') { // printable + friendlyTextBuf[0] = '\''; + friendlyTextBuf[1] = keyCopy; + friendlyTextBuf[2] = '\''; + friendlyTextBuf[3] = 0; + friendlyTextPtr = friendlyTextBuf; + } else if (keyCopy == ' ') { + friendlyTextPtr = const_cast<char*>("space"); + } else if (keyCopy == 27) { + friendlyTextPtr = const_cast<char*>("ESC"); + } else if (keyCopy == 0) { + friendlyTextPtr = const_cast<char*>("NUL"); + } else if (keyCopy == 127) { + friendlyTextPtr = const_cast<char*>("DEL"); + } else { + friendlyTextBuf[0] = '^'; + friendlyTextBuf[1] = keyCopy + 0x40; + friendlyTextBuf[2] = 0; + friendlyTextPtr = friendlyTextBuf; + } + printf("%d x%02X (%s%s) ", key, key, prefixText, friendlyTextPtr); + } + printf("\x1b[1G\n"); // go to first column of new line + + // drop out of this loop on ctrl-C + if (keys[0] == ctrlChar('C')) { + printf("Leaving keyboard debugging mode (on ctrl-C)\n"); + fflush(stdout); + return -2; + } + } + } +#endif // __REPLXX_DEBUG__ + + c = EscapeSequenceProcessing::doDispatch(c); + if ( is_control_code( c ) ) { + c = Replxx::KEY::control( c + 0x40 ); + } +#endif // #_WIN32 + return ( c ); +} + +Terminal::EVENT_TYPE Terminal::wait_for_input( int long timeout_ ) { +#ifdef _WIN32 + std::array<HANDLE,2> handles = { _consoleIn, _interrupt }; + while ( true ) { + DWORD event( WaitForMultipleObjects( handles.size (), handles.data(), false, timeout_ > 0 ? timeout_ : INFINITE ) ); + switch ( event ) { + case ( WAIT_OBJECT_0 + 0 ): { + // peek events that will be skipped + INPUT_RECORD rec; + DWORD count; + PeekConsoleInputW( _consoleIn, &rec, 1, &count ); + + if ( + ( rec.EventType != KEY_EVENT ) + || ( !rec.Event.KeyEvent.bKeyDown && ( rec.Event.KeyEvent.wVirtualKeyCode != VK_MENU ) ) + ) { + // read the event to unsignal the handle + ReadConsoleInputW( _consoleIn, &rec, 1, &count ); + continue; + } else if (rec.EventType == KEY_EVENT) { + int key(rec.Event.KeyEvent.uChar.UnicodeChar); + if (key == 0) { + switch (rec.Event.KeyEvent.wVirtualKeyCode) { + case VK_LEFT: + case VK_RIGHT: + case VK_UP: + case VK_DOWN: + case VK_DELETE: + case VK_HOME: + case VK_END: + case VK_PRIOR: + case VK_NEXT: + break; + default: + ReadConsoleInputW(_consoleIn, &rec, 1, &count); + continue; // in raw mode, ReadConsoleInput shows shift, ctrl - ignore them + } + } + } + + return ( EVENT_TYPE::KEY_PRESS ); + } + case ( WAIT_OBJECT_0 + 1 ): { + ResetEvent( _interrupt ); + if ( _events.empty() ) { + continue; + } + EVENT_TYPE eventType( _events.front() ); + _events.pop_front(); + return ( eventType ); + } + case ( WAIT_TIMEOUT ): { + return ( EVENT_TYPE::TIMEOUT ); + } + } + } +#else + fd_set fdSet; + int nfds( max( _interrupt[0], _interrupt[1] ) + 1 ); + while ( true ) { + FD_ZERO( &fdSet ); + FD_SET( 0, &fdSet ); + FD_SET( _interrupt[0], &fdSet ); + timeval tv{ timeout_ / 1000, static_cast<suseconds_t>( ( timeout_ % 1000 ) * 1000 ) }; + int err( select( nfds, &fdSet, nullptr, nullptr, timeout_ > 0 ? &tv : nullptr ) ); + if ( ( err == -1 ) && ( errno == EINTR ) ) { + continue; + } + if ( err == 0 ) { + return ( EVENT_TYPE::TIMEOUT ); + } + if ( FD_ISSET( _interrupt[0], &fdSet ) ) { + char data( 0 ); + static_cast<void>( read( _interrupt[0], &data, 1 ) == 1 ); + if ( data == 'k' ) { + return ( EVENT_TYPE::KEY_PRESS ); + } + if ( data == 'm' ) { + return ( EVENT_TYPE::MESSAGE ); + } + } + if ( FD_ISSET( 0, &fdSet ) ) { + return ( EVENT_TYPE::KEY_PRESS ); + } + } +#endif +} + +void Terminal::notify_event( EVENT_TYPE eventType_ ) { +#ifdef _WIN32 + _events.push_back( eventType_ ); + SetEvent( _interrupt ); +#else + char data( eventType_ == EVENT_TYPE::KEY_PRESS ? 'k' : 'm' ); + static_cast<void>( write( _interrupt[1], &data, 1 ) == 1 ); +#endif +} + +/** + * Clear the screen ONLY (no redisplay of anything) + */ +void Terminal::clear_screen( CLEAR_SCREEN clearScreen_ ) { +#ifdef _WIN32 + COORD coord = { 0, 0 }; + CONSOLE_SCREEN_BUFFER_INFO inf; + bool toEnd( clearScreen_ == CLEAR_SCREEN::TO_END ); + HANDLE consoleOut( _consoleOut != INVALID_HANDLE_VALUE ? _consoleOut : GetStdHandle( STD_OUTPUT_HANDLE ) ); + GetConsoleScreenBufferInfo( consoleOut, &inf ); + if ( ! toEnd ) { + SetConsoleCursorPosition( consoleOut, coord ); + } else { + coord = inf.dwCursorPosition; + } + DWORD nWritten( 0 ); + DWORD toWrite( + toEnd + ? ( inf.dwSize.Y - inf.dwCursorPosition.Y ) * inf.dwSize.X - inf.dwCursorPosition.X + : inf.dwSize.X * inf.dwSize.Y + ); + FillConsoleOutputCharacterA( consoleOut, ' ', toWrite, coord, &nWritten ); +#else + if ( clearScreen_ == CLEAR_SCREEN::WHOLE ) { + char const clearCode[] = "\033c\033[H\033[2J\033[0m"; + static_cast<void>( write(1, clearCode, sizeof ( clearCode ) - 1) >= 0 ); + } else { + char const clearCode[] = "\033[J"; + static_cast<void>( write(1, clearCode, sizeof ( clearCode ) - 1) >= 0 ); + } +#endif +} + +void Terminal::jump_cursor( int xPos_, int yOffset_ ) { +#ifdef _WIN32 + CONSOLE_SCREEN_BUFFER_INFO inf; + GetConsoleScreenBufferInfo( _consoleOut, &inf ); + inf.dwCursorPosition.X = xPos_; + inf.dwCursorPosition.Y += yOffset_; + SetConsoleCursorPosition( _consoleOut, inf.dwCursorPosition ); +#else + char seq[64]; + if ( yOffset_ != 0 ) { // move the cursor up as required + snprintf( seq, sizeof seq, "\033[%d%c", abs( yOffset_ ), yOffset_ > 0 ? 'B' : 'A' ); + write8( seq, strlen( seq ) ); + } + // position at the end of the prompt, clear to end of screen + snprintf( + seq, sizeof seq, "\033[%dG", + xPos_ + 1 /* 1-based on VT100 */ + ); + write8( seq, strlen( seq ) ); +#endif +} + +#ifndef _WIN32 +int Terminal::read_verbatim( char32_t* buffer_, int size_ ) { + int len( 0 ); + buffer_[len ++] = read_unicode_character(); + int statusFlags( ::fcntl( STDIN_FILENO, F_GETFL, 0 ) ); + ::fcntl( STDIN_FILENO, F_SETFL, statusFlags | O_NONBLOCK ); + while ( len < size_ ) { + char32_t c( read_unicode_character() ); + if ( c == 0 ) { + break; + } + buffer_[len ++] = c; + } + ::fcntl( STDIN_FILENO, F_SETFL, statusFlags ); + return ( len ); +} +#endif + +} + diff --git a/contrib/replxx/src/io.hxx b/contrib/replxx/src/io.hxx new file mode 100644 index 000000000..42d8bd5b3 --- /dev/null +++ b/contrib/replxx/src/io.hxx @@ -0,0 +1,79 @@ +#ifndef REPLXX_IO_HXX_INCLUDED +#define REPLXX_IO_HXX_INCLUDED 1 + +#include <deque> + +#ifdef _WIN32 +#include <windows.h> +#else +#include <termios.h> +#endif + +namespace replxx { + +class Terminal { +public: + enum class EVENT_TYPE { + KEY_PRESS, + MESSAGE, + TIMEOUT + }; +private: +#ifdef _WIN32 + HANDLE _consoleOut; + HANDLE _consoleIn; + DWORD _oldMode; + WORD _oldDisplayAttribute; + UINT const _inputCodePage; + UINT const _outputCodePage; + HANDLE _interrupt; + typedef std::deque<EVENT_TYPE> events_t; + events_t _events; +#else + struct termios _origTermios; /* in order to restore at exit */ + int _interrupt[2]; +#endif + bool _rawMode; /* for destructor to check if restore is needed */ +public: + enum class CLEAR_SCREEN { + WHOLE, + TO_END + }; +public: + Terminal( void ); + ~Terminal( void ); + void write32( char32_t const*, int ); + void write8( char const*, int ); + int get_screen_columns(void); + int get_screen_rows(void); + int enable_raw_mode(void); + void disable_raw_mode(void); + char32_t read_char(void); + void clear_screen( CLEAR_SCREEN ); + EVENT_TYPE wait_for_input( int long = 0 ); + void notify_event( EVENT_TYPE ); + void jump_cursor( int, int ); +#ifndef _WIN32 + int read_verbatim( char32_t*, int ); +#endif +private: + Terminal( Terminal const& ) = delete; + Terminal& operator = ( Terminal const& ) = delete; + Terminal( Terminal&& ) = delete; + Terminal& operator = ( Terminal&& ) = delete; +}; + +void beep(); +char32_t read_unicode_character(void); + +namespace tty { + +extern bool in; +extern bool out; + +} + +} + +#endif + diff --git a/contrib/replxx/src/killring.hxx b/contrib/replxx/src/killring.hxx new file mode 100644 index 000000000..9eca23a8e --- /dev/null +++ b/contrib/replxx/src/killring.hxx @@ -0,0 +1,76 @@ +#ifndef REPLXX_KILLRING_HXX_INCLUDED +#define REPLXX_KILLRING_HXX_INCLUDED 1 + +#include <vector> + +#include "unicodestring.hxx" + +namespace replxx { + +class KillRing { + static const int capacity = 10; + int size; + int index; + char indexToSlot[10]; + std::vector<UnicodeString> theRing; + +public: + enum action { actionOther, actionKill, actionYank }; + action lastAction; + size_t lastYankSize; + + KillRing() : size(0), index(0), lastAction(actionOther) { + theRing.reserve(capacity); + } + + void kill(const char32_t* text, int textLen, bool forward) { + if (textLen == 0) { + return; + } + UnicodeString killedText(text, textLen); + if (lastAction == actionKill && size > 0) { + int slot = indexToSlot[0]; + int currentLen = static_cast<int>(theRing[slot].length()); + UnicodeString temp; + if ( forward ) { + temp.append( theRing[slot].get(), currentLen ).append( killedText.get(), textLen ); + } else { + temp.append( killedText.get(), textLen ).append( theRing[slot].get(), currentLen ); + } + theRing[slot] = temp; + } else { + if (size < capacity) { + if (size > 0) { + memmove(&indexToSlot[1], &indexToSlot[0], size); + } + indexToSlot[0] = size; + size++; + theRing.push_back(killedText); + } else { + int slot = indexToSlot[capacity - 1]; + theRing[slot] = killedText; + memmove(&indexToSlot[1], &indexToSlot[0], capacity - 1); + indexToSlot[0] = slot; + } + index = 0; + } + } + + UnicodeString* yank() { return (size > 0) ? &theRing[indexToSlot[index]] : 0; } + + UnicodeString* yankPop() { + if (size == 0) { + return 0; + } + ++index; + if (index == size) { + index = 0; + } + return &theRing[indexToSlot[index]]; + } +}; + +} + +#endif + diff --git a/contrib/replxx/src/prompt.cxx b/contrib/replxx/src/prompt.cxx new file mode 100644 index 000000000..391d3745b --- /dev/null +++ b/contrib/replxx/src/prompt.cxx @@ -0,0 +1,150 @@ +#ifdef _WIN32 + +#include <conio.h> +#include <windows.h> +#include <io.h> +#if _MSC_VER < 1900 && defined (_MSC_VER) +#define snprintf _snprintf // Microsoft headers use underscores in some names +#endif +#define strcasecmp _stricmp +#define strdup _strdup +#define write _write +#define STDIN_FILENO 0 + +#else /* _WIN32 */ + +#include <unistd.h> + +#endif /* _WIN32 */ + +#include "prompt.hxx" +#include "util.hxx" + +namespace replxx { + +Prompt::Prompt( Terminal& terminal_ ) + : _extraLines( 0 ) + , _lastLinePosition( 0 ) + , _previousInputLen( 0 ) + , _previousLen( 0 ) + , _screenColumns( 0 ) + , _terminal( terminal_ ) { +} + +void Prompt::write() { + _terminal.write32( _text.get(), _byteCount ); +} + +void Prompt::update_screen_columns( void ) { + _screenColumns = _terminal.get_screen_columns(); +} + +void Prompt::set_text( UnicodeString const& text_ ) { + update_screen_columns(); + // strip control characters from the prompt -- we do allow newline + _text = text_; + UnicodeString::const_iterator in( text_.begin() ); + UnicodeString::iterator out( _text.begin() ); + + int len = 0; + int x = 0; + + bool const strip = !tty::out; + + while (in != text_.end()) { + char32_t c = *in; + if ('\n' == c || !is_control_code(c)) { + *out = c; + ++out; + ++in; + ++len; + if ('\n' == c || ++x >= _screenColumns) { + x = 0; + ++_extraLines; + _lastLinePosition = len; + } + } else if (c == '\x1b') { + if ( strip ) { + // jump over control chars + ++in; + if (*in == '[') { + ++in; + while ( ( in != text_.end() ) && ( ( *in == ';' ) || ( ( ( *in >= '0' ) && ( *in <= '9' ) ) ) ) ) { + ++in; + } + if (*in == 'm') { + ++in; + } + } + } else { + // copy control chars + *out = *in; + ++out; + ++in; + if (*in == '[') { + *out = *in; + ++out; + ++in; + while ( ( in != text_.end() ) && ( ( *in == ';' ) || ( ( ( *in >= '0' ) && ( *in <= '9' ) ) ) ) ) { + *out = *in; + ++out; + ++in; + } + if (*in == 'm') { + *out = *in; + ++out; + ++in; + } + } + } + } else { + ++in; + } + } + _characterCount = len; + _byteCount = static_cast<int>(out - _text.begin()); + + _indentation = len - _lastLinePosition; + _cursorRowOffset = _extraLines; +} + +// Used with DynamicPrompt (history search) +// +const UnicodeString forwardSearchBasePrompt("(i-search)`"); +const UnicodeString reverseSearchBasePrompt("(reverse-i-search)`"); +const UnicodeString endSearchBasePrompt("': "); +UnicodeString previousSearchText; // remembered across invocations of replxx_input() + +DynamicPrompt::DynamicPrompt( Terminal& terminal_, int initialDirection ) + : Prompt( terminal_ ) + , _searchText() + , _direction( initialDirection ) { + update_screen_columns(); + _cursorRowOffset = 0; + const UnicodeString* basePrompt = + (_direction > 0) ? &forwardSearchBasePrompt : &reverseSearchBasePrompt; + size_t promptStartLength = basePrompt->length(); + _characterCount = static_cast<int>(promptStartLength + endSearchBasePrompt.length()); + _byteCount = _characterCount; + _lastLinePosition = _characterCount; // TODO fix this, we are asssuming + // that the history prompt won't wrap (!) + _previousLen = _characterCount; + _text.assign( *basePrompt ).append( endSearchBasePrompt ); + calculate_screen_position( + 0, 0, screen_columns(), _characterCount, + _indentation, _extraLines + ); +} + +void DynamicPrompt::updateSearchPrompt(void) { + const UnicodeString* basePrompt = + (_direction > 0) ? &forwardSearchBasePrompt : &reverseSearchBasePrompt; + size_t promptStartLength = basePrompt->length(); + _characterCount = static_cast<int>(promptStartLength + _searchText.length() + + endSearchBasePrompt.length()); + _byteCount = _characterCount; + _text.assign( *basePrompt ).append( _searchText ).append( endSearchBasePrompt ); +} + +} + diff --git a/contrib/replxx/src/prompt.hxx b/contrib/replxx/src/prompt.hxx new file mode 100644 index 000000000..aabff0ab0 --- /dev/null +++ b/contrib/replxx/src/prompt.hxx @@ -0,0 +1,49 @@ +#ifndef REPLXX_PROMPT_HXX_INCLUDED +#define REPLXX_PROMPT_HXX_INCLUDED 1 + +#include <cstdlib> + +#include "unicodestring.hxx" +#include "io.hxx" + +namespace replxx { + +class Prompt { // a convenience struct for grouping prompt info +public: + UnicodeString _text; // our copy of the prompt text, edited + int _characterCount; // chars in _text + int _byteCount; // bytes in _text + int _extraLines; // extra lines (beyond 1) occupied by prompt + int _indentation; // column offset to end of prompt + int _lastLinePosition; // index into _text where last line begins + int _previousInputLen; // _characterCount of previous input line, for clearing + int _cursorRowOffset; // where the cursor is relative to the start of the prompt + int _previousLen; // help erasing +private: + int _screenColumns; // width of screen in columns [cache] + Terminal& _terminal; +public: + Prompt( Terminal& ); + void set_text( UnicodeString const& textPtr ); + void update_screen_columns( void ); + int screen_columns() const { + return ( _screenColumns ); + } + void write(); +}; + +extern UnicodeString previousSearchText; // remembered across invocations of replxx_input() + +// changing prompt for "(reverse-i-search)`text':" etc. +// +struct DynamicPrompt : public Prompt { + UnicodeString _searchText; // text we are searching for + int _direction; // current search _direction, 1=forward, -1=reverse + + DynamicPrompt( Terminal&, int initialDirection ); + void updateSearchPrompt(void); +}; + +} + +#endif diff --git a/contrib/replxx/src/replxx.cxx b/contrib/replxx/src/replxx.cxx new file mode 100644 index 000000000..7803d873a --- /dev/null +++ b/contrib/replxx/src/replxx.cxx @@ -0,0 +1,521 @@ +/* + * Copyright (c) 2017-2018, Marcin Konarski (amok at codestation.org) + * Copyright (c) 2010, Salvatore Sanfilippo <antirez at gmail dot com> + * Copyright (c) 2010, Pieter Noordhuis <pcnoordhuis at gmail dot com> + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Redis nor the names of its contributors may be used + * to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + * line editing lib needs to be 20,000 lines of C code. + * + * You can find the latest source code at: + * + * http://github.com/antirez/linenoise + * + * Does a number of crazy assumptions that happen to be true in 99.9999% of + * the 2010 UNIX computers around. + * + * References: + * - http://invisible-island.net/xterm/ctlseqs/ctlseqs.html + * - http://www.3waylabs.com/nw/WWW/products/wizcon/vt220.html + * + * Todo list: + * - Switch to gets() if $TERM is something we can't support. + * - Filter bogus Ctrl+<char> combinations. + * - Win32 support + * + * Bloat: + * - Completion? + * - History search like Ctrl+r in readline? + * + * List of escape sequences used by this program, we do everything just + * with three sequences. In order to be so cheap we may have some + * flickering effect with some slow terminal, but the lesser sequences + * the more compatible. + * + * CHA (Cursor Horizontal Absolute) + * Sequence: ESC [ n G + * Effect: moves cursor to column n (1 based) + * + * EL (Erase Line) + * Sequence: ESC [ n K + * Effect: if n is 0 or missing, clear from cursor to end of line + * Effect: if n is 1, clear from beginning of line to cursor + * Effect: if n is 2, clear entire line + * + * CUF (Cursor Forward) + * Sequence: ESC [ n C + * Effect: moves cursor forward of n chars + * + * The following are used to clear the screen: ESC [ H ESC [ 2 J + * This is actually composed of two sequences: + * + * cursorhome + * Sequence: ESC [ H + * Effect: moves the cursor to upper left corner + * + * ED2 (Clear entire screen) + * Sequence: ESC [ 2 J + * Effect: clear the whole screen + * + */ + +#include <algorithm> +#include <cstdarg> + +#ifdef _WIN32 + +#include <io.h> +#define STDIN_FILENO 0 + +#else /* _WIN32 */ + +#include <signal.h> +#include <unistd.h> +#include <sys/stat.h> + +#endif /* _WIN32 */ + +#include "replxx.h" +#include "replxx.hxx" +#include "replxx_impl.hxx" +#include "io.hxx" + +using namespace std; +using namespace std::placeholders; +using namespace replxx; + +namespace replxx { + +namespace { +void delete_ReplxxImpl( Replxx::ReplxxImpl* impl_ ) { + delete impl_; +} +} + +Replxx::Replxx( void ) + : _impl( new Replxx::ReplxxImpl( nullptr, nullptr, nullptr ), delete_ReplxxImpl ) { +} + +void Replxx::set_completion_callback( completion_callback_t const& fn ) { + _impl->set_completion_callback( fn ); +} + +void Replxx::set_highlighter_callback( highlighter_callback_t const& fn ) { + _impl->set_highlighter_callback( fn ); +} + +void Replxx::set_hint_callback( hint_callback_t const& fn ) { + _impl->set_hint_callback( fn ); +} + +char const* Replxx::input( std::string const& prompt ) { + return ( _impl->input( prompt ) ); +} + +void Replxx::history_add( std::string const& line ) { + _impl->history_add( line ); +} + +int Replxx::history_save( std::string const& filename ) { + return ( _impl->history_save( filename ) ); +} + +int Replxx::history_load( std::string const& filename ) { + return ( _impl->history_load( filename ) ); +} + +int Replxx::history_size( void ) const { + return ( _impl->history_size() ); +} + +std::string Replxx::history_line( int index ) { + return ( _impl->history_line( index ) ); +} + +void Replxx::set_preload_buffer( std::string const& preloadText ) { + _impl->set_preload_buffer( preloadText ); +} + +void Replxx::set_word_break_characters( char const* wordBreakers ) { + _impl->set_word_break_characters( wordBreakers ); +} + +void Replxx::set_max_hint_rows( int count ) { + _impl->set_max_hint_rows( count ); +} + +void Replxx::set_hint_delay( int milliseconds ) { + _impl->set_hint_delay( milliseconds ); +} + +void Replxx::set_completion_count_cutoff( int count ) { + _impl->set_completion_count_cutoff( count ); +} + +void Replxx::set_double_tab_completion( bool val ) { + _impl->set_double_tab_completion( val ); +} + +void Replxx::set_complete_on_empty( bool val ) { + _impl->set_complete_on_empty( val ); +} + +void Replxx::set_beep_on_ambiguous_completion( bool val ) { + _impl->set_beep_on_ambiguous_completion( val ); +} + +void Replxx::set_no_color( bool val ) { + _impl->set_no_color( val ); +} + +void Replxx::set_max_history_size( int len ) { + _impl->set_max_history_size( len ); +} + +void Replxx::clear_screen( void ) { + _impl->clear_screen( 0 ); +} + +void Replxx::emulate_key_press( char32_t keyPress_ ) { + _impl->emulate_key_press( keyPress_ ); +} + +Replxx::ACTION_RESULT Replxx::invoke( ACTION action_, char32_t keyPress_ ) { + return ( _impl->invoke( action_, keyPress_ ) ); +} + +void Replxx::bind_key( char32_t keyPress_, key_press_handler_t handler_ ) { + _impl->bind_key( keyPress_, handler_ ); +} + +Replxx::State Replxx::get_state( void ) const { + return ( _impl->get_state() ); +} + +void Replxx::set_state( Replxx::State const& state_ ) { + _impl->set_state( state_ ); +} + +int Replxx::install_window_change_handler( void ) { + return ( _impl->install_window_change_handler() ); +} + +void Replxx::print( char const* format_, ... ) { + ::std::va_list ap; + va_start( ap, format_ ); + int size = static_cast<int>( vsnprintf( nullptr, 0, format_, ap ) ); + va_end( ap ); + va_start( ap, format_ ); + unique_ptr<char[]> buf( new char[size + 1] ); + vsnprintf( buf.get(), static_cast<size_t>( size + 1 ), format_, ap ); + va_end( ap ); + return ( _impl->print( buf.get(), size ) ); +} + +} + +::Replxx* replxx_init() { + typedef ::Replxx* replxx_data_t; + return ( reinterpret_cast<replxx_data_t>( new replxx::Replxx::ReplxxImpl( nullptr, nullptr, nullptr ) ) ); +} + +void replxx_end( ::Replxx* replxx_ ) { + delete reinterpret_cast<replxx::Replxx::ReplxxImpl*>( replxx_ ); +} + +void replxx_clear_screen( ::Replxx* replxx_ ) { + replxx::Replxx::ReplxxImpl* replxx( reinterpret_cast<replxx::Replxx::ReplxxImpl*>( replxx_ ) ); + replxx->clear_screen( 0 ); +} + +void replxx_emulate_key_press( ::Replxx* replxx_, int unsigned keyPress_ ) { + replxx::Replxx::ReplxxImpl* replxx( reinterpret_cast<replxx::Replxx::ReplxxImpl*>( replxx_ ) ); + replxx->emulate_key_press( keyPress_ ); +} + +ReplxxActionResult replxx_invoke( ::Replxx* replxx_, ReplxxAction action_, int unsigned keyPress_ ) { + replxx::Replxx::ReplxxImpl* replxx( reinterpret_cast<replxx::Replxx::ReplxxImpl*>( replxx_ ) ); + return ( static_cast<ReplxxActionResult>( replxx->invoke( static_cast<replxx::Replxx::ACTION>( action_ ), keyPress_ ) ) ); +} + +replxx::Replxx::ACTION_RESULT key_press_handler_forwarder( key_press_handler_t handler_, char32_t code_, void* userData_ ) { + return ( static_cast<replxx::Replxx::ACTION_RESULT>( handler_( code_, userData_ ) ) ); +} + +void replxx_bind_key( ::Replxx* replxx_, int code_, key_press_handler_t handler_, void* userData_ ) { + replxx::Replxx::ReplxxImpl* replxx( reinterpret_cast<replxx::Replxx::ReplxxImpl*>( replxx_ ) ); + replxx->bind_key( code_, std::bind( key_press_handler_forwarder, handler_, _1, userData_ ) ); +} + +void replxx_get_state( ::Replxx* replxx_, ReplxxState* state ) { + replxx::Replxx::ReplxxImpl* replxx( reinterpret_cast<replxx::Replxx::ReplxxImpl*>( replxx_ ) ); + replxx::Replxx::State s( replxx->get_state() ); + state->text = s.text(); + state->cursorPosition = s.cursor_position(); +} + +void replxx_set_state( ::Replxx* replxx_, ReplxxState* state ) { + replxx::Replxx::ReplxxImpl* replxx( reinterpret_cast<replxx::Replxx::ReplxxImpl*>( replxx_ ) ); + replxx->set_state( replxx::Replxx::State( state->text, state->cursorPosition ) ); +} + +/** + * replxx_set_preload_buffer provides text to be inserted into the command buffer + * + * the provided text will be processed to be usable and will be used to preload + * the input buffer on the next call to replxx_input() + * + * @param preloadText text to begin with on the next call to replxx_input() + */ +void replxx_set_preload_buffer(::Replxx* replxx_, const char* preloadText) { + replxx::Replxx::ReplxxImpl* replxx( reinterpret_cast<replxx::Replxx::ReplxxImpl*>( replxx_ ) ); + replxx->set_preload_buffer( preloadText ? preloadText : "" ); +} + +/** + * replxx_input is a readline replacement. + * + * call it with a prompt to display and it will return a line of input from the + * user + * + * @param prompt text of prompt to display to the user + * @return the returned string belongs to the caller on return and must be + * freed to prevent memory leaks + */ +char const* replxx_input( ::Replxx* replxx_, const char* prompt ) { + replxx::Replxx::ReplxxImpl* replxx( reinterpret_cast<replxx::Replxx::ReplxxImpl*>( replxx_ ) ); + return ( replxx->input( prompt ) ); +} + +int replxx_print( ::Replxx* replxx_, char const* format_, ... ) { + replxx::Replxx::ReplxxImpl* replxx( reinterpret_cast<replxx::Replxx::ReplxxImpl*>( replxx_ ) ); + ::std::va_list ap; + va_start( ap, format_ ); + int size = static_cast<int>( vsnprintf( nullptr, 0, format_, ap ) ); + va_end( ap ); + va_start( ap, format_ ); + unique_ptr<char[]> buf( new char[size + 1] ); + vsnprintf( buf.get(), static_cast<size_t>( size + 1 ), format_, ap ); + va_end( ap ); + try { + replxx->print( buf.get(), size ); + } catch ( ... ) { + return ( -1 ); + } + return ( size ); +} + +struct replxx_completions { + replxx::Replxx::completions_t data; +}; + +struct replxx_hints { + replxx::Replxx::hints_t data; +}; + +replxx::Replxx::completions_t completions_fwd( replxx_completion_callback_t fn, std::string const& input_, int& contextLen_, void* userData ) { + replxx_completions completions; + fn( input_.c_str(), &completions, &contextLen_, userData ); + return ( completions.data ); +} + +/* Register a callback function to be called for tab-completion. */ +void replxx_set_completion_callback(::Replxx* replxx_, replxx_completion_callback_t* fn, void* userData) { + replxx::Replxx::ReplxxImpl* replxx( reinterpret_cast<replxx::Replxx::ReplxxImpl*>( replxx_ ) ); + replxx->set_completion_callback( std::bind( &completions_fwd, fn, _1, _2, userData ) ); +} + +void highlighter_fwd( replxx_highlighter_callback_t fn, std::string const& input, replxx::Replxx::colors_t& colors, void* userData ) { + std::vector<ReplxxColor> colorsTmp( colors.size() ); + std::transform( + colors.begin(), + colors.end(), + colorsTmp.begin(), + []( replxx::Replxx::Color c ) { + return ( static_cast<ReplxxColor>( c ) ); + } + ); + fn( input.c_str(), colorsTmp.data(), colors.size(), userData ); + std::transform( + colorsTmp.begin(), + colorsTmp.end(), + colors.begin(), + []( ReplxxColor c ) { + return ( static_cast<replxx::Replxx::Color>( c ) ); + } + ); +} + +void replxx_set_highlighter_callback( ::Replxx* replxx_, replxx_highlighter_callback_t* fn, void* userData ) { + replxx::Replxx::ReplxxImpl* replxx( reinterpret_cast<replxx::Replxx::ReplxxImpl*>( replxx_ ) ); + replxx->set_highlighter_callback( std::bind( &highlighter_fwd, fn, _1, _2, userData ) ); +} + +replxx::Replxx::hints_t hints_fwd( replxx_hint_callback_t fn, std::string const& input_, int& contextLen_, replxx::Replxx::Color& color_, void* userData ) { + replxx_hints hints; + ReplxxColor c( static_cast<ReplxxColor>( color_ ) ); + fn( input_.c_str(), &hints, &contextLen_, &c, userData ); + return ( hints.data ); +} + +void replxx_set_hint_callback( ::Replxx* replxx_, replxx_hint_callback_t* fn, void* userData ) { + replxx::Replxx::ReplxxImpl* replxx( reinterpret_cast<replxx::Replxx::ReplxxImpl*>( replxx_ ) ); + replxx->set_hint_callback( std::bind( &hints_fwd, fn, _1, _2, _3, userData ) ); +} + +void replxx_add_hint(replxx_hints* lh, const char* str) { + lh->data.emplace_back(str); +} + +void replxx_add_completion( replxx_completions* lc, const char* str ) { + lc->data.emplace_back( str ); +} + +void replxx_add_completion( replxx_completions* lc, const char* str, ReplxxColor color ) { + lc->data.emplace_back( str, static_cast<replxx::Replxx::Color>( color ) ); +} + +void replxx_history_add( ::Replxx* replxx_, const char* line ) { + replxx::Replxx::ReplxxImpl* replxx( reinterpret_cast<replxx::Replxx::ReplxxImpl*>( replxx_ ) ); + replxx->history_add( line ); +} + +void replxx_set_max_history_size( ::Replxx* replxx_, int len ) { + replxx::Replxx::ReplxxImpl* replxx( reinterpret_cast<replxx::Replxx::ReplxxImpl*>( replxx_ ) ); + replxx->set_max_history_size( len ); +} + +void replxx_set_max_hint_rows( ::Replxx* replxx_, int count ) { + replxx::Replxx::ReplxxImpl* replxx( reinterpret_cast<replxx::Replxx::ReplxxImpl*>( replxx_ ) ); + replxx->set_max_hint_rows( count ); +} + +void replxx_set_hint_delay( ::Replxx* replxx_, int milliseconds ) { + replxx::Replxx::ReplxxImpl* replxx( reinterpret_cast<replxx::Replxx::ReplxxImpl*>( replxx_ ) ); + replxx->set_hint_delay( milliseconds ); +} + +void replxx_set_completion_count_cutoff( ::Replxx* replxx_, int count ) { + replxx::Replxx::ReplxxImpl* replxx( reinterpret_cast<replxx::Replxx::ReplxxImpl*>( replxx_ ) ); + replxx->set_completion_count_cutoff( count ); +} + +void replxx_set_word_break_characters( ::Replxx* replxx_, char const* breakChars_ ) { + replxx::Replxx::ReplxxImpl* replxx( reinterpret_cast<replxx::Replxx::ReplxxImpl*>( replxx_ ) ); + replxx->set_word_break_characters( breakChars_ ); +} + +void replxx_set_double_tab_completion( ::Replxx* replxx_, int val ) { + replxx::Replxx::ReplxxImpl* replxx( reinterpret_cast<replxx::Replxx::ReplxxImpl*>( replxx_ ) ); + replxx->set_double_tab_completion( val ? true : false ); +} + +void replxx_set_complete_on_empty( ::Replxx* replxx_, int val ) { + replxx::Replxx::ReplxxImpl* replxx( reinterpret_cast<replxx::Replxx::ReplxxImpl*>( replxx_ ) ); + replxx->set_complete_on_empty( val ? true : false ); +} + +void replxx_set_no_color( ::Replxx* replxx_, int val ) { + replxx::Replxx::ReplxxImpl* replxx( reinterpret_cast<replxx::Replxx::ReplxxImpl*>( replxx_ ) ); + replxx->set_no_color( val ? true : false ); +} + +void replxx_set_beep_on_ambiguous_completion( ::Replxx* replxx_, int val ) { + replxx::Replxx::ReplxxImpl* replxx( reinterpret_cast<replxx::Replxx::ReplxxImpl*>( replxx_ ) ); + replxx->set_beep_on_ambiguous_completion( val ? true : false ); +} + +/* Fetch a line of the history by (zero-based) index. If the requested + * line does not exist, NULL is returned. The return value is a heap-allocated + * copy of the line. */ +char const* replxx_history_line( ::Replxx* replxx_, int index ) { + replxx::Replxx::ReplxxImpl* replxx( reinterpret_cast<replxx::Replxx::ReplxxImpl*>( replxx_ ) ); + return ( replxx->history_line( index ).c_str() ); +} + +/* Save the history in the specified file. On success 0 is returned + * otherwise -1 is returned. */ +int replxx_history_save( ::Replxx* replxx_, const char* filename ) { + replxx::Replxx::ReplxxImpl* replxx( reinterpret_cast<replxx::Replxx::ReplxxImpl*>( replxx_ ) ); + return ( replxx->history_save( filename ) ); +} + +/* Load the history from the specified file. If the file does not exist + * zero is returned and no operation is performed. + * + * If the file exists and the operation succeeded 0 is returned, otherwise + * on error -1 is returned. */ +int replxx_history_load( ::Replxx* replxx_, const char* filename ) { + replxx::Replxx::ReplxxImpl* replxx( reinterpret_cast<replxx::Replxx::ReplxxImpl*>( replxx_ ) ); + return ( replxx->history_load( filename ) ); +} + +int replxx_history_size( ::Replxx* replxx_ ) { + replxx::Replxx::ReplxxImpl* replxx( reinterpret_cast<replxx::Replxx::ReplxxImpl*>( replxx_ ) ); + return ( replxx->history_size() ); +} + +/* This special mode is used by replxx in order to print scan codes + * on screen for debugging / development purposes. It is implemented + * by the replxx-c-api-example program using the --keycodes option. */ +#ifdef __REPLXX_DEBUG__ +void replxx_debug_dump_print_codes(void) { + char quit[4]; + + printf( + "replxx key codes debugging mode.\n" + "Press keys to see scan codes. Type 'quit' at any time to exit.\n"); + if (enableRawMode() == -1) return; + memset(quit, ' ', 4); + while (1) { + char c; + int nread; + +#if _WIN32 + nread = _read(STDIN_FILENO, &c, 1); +#else + nread = read(STDIN_FILENO, &c, 1); +#endif + if (nread <= 0) continue; + memmove(quit, quit + 1, sizeof(quit) - 1); /* shift string to left. */ + quit[sizeof(quit) - 1] = c; /* Insert current char on the right. */ + if (memcmp(quit, "quit", sizeof(quit)) == 0) break; + + printf("'%c' %02x (%d) (type quit to exit)\n", isprint(c) ? c : '?', (int)c, + (int)c); + printf("\r"); /* Go left edge manually, we are in raw mode. */ + fflush(stdout); + } + disableRawMode(); +} +#endif // __REPLXX_DEBUG__ + +int replxx_install_window_change_handler( ::Replxx* replxx_ ) { + replxx::Replxx::ReplxxImpl* replxx( reinterpret_cast<replxx::Replxx::ReplxxImpl*>( replxx_ ) ); + return ( replxx->install_window_change_handler() ); +} + diff --git a/contrib/replxx/src/replxx_impl.cxx b/contrib/replxx/src/replxx_impl.cxx new file mode 100644 index 000000000..14f3cbd4d --- /dev/null +++ b/contrib/replxx/src/replxx_impl.cxx @@ -0,0 +1,1984 @@ +#include <algorithm> +#include <memory> +#include <cerrno> +#include <iostream> + +#ifdef _WIN32 + +#include <windows.h> +#include <io.h> +#if _MSC_VER < 1900 +#define snprintf _snprintf // Microsoft headers use underscores in some names +#endif +#define strcasecmp _stricmp +#define write _write +#define STDIN_FILENO 0 + +#else /* _WIN32 */ + +#include <unistd.h> +#include <signal.h> + +#endif /* _WIN32 */ + +#ifdef _WIN32 +#include "windows.hxx" +#endif + +#include "replxx_impl.hxx" +#include "utf8string.hxx" +#include "prompt.hxx" +#include "util.hxx" +#include "io.hxx" +#include "history.hxx" +#include "replxx.hxx" + +using namespace std; + +namespace replxx { + +#ifndef _WIN32 + +bool gotResize = false; + +#endif + +namespace { + +static int const REPLXX_MAX_HINT_ROWS( 4 ); +/* + * All whitespaces and all non-alphanumerical characters from ASCII range + * with an exception of an underscore ('_'). + */ +char const defaultBreakChars[] = " \t\v\f\a\b\r\n`~!@#$%^&*()-=+[{]}\\|;:'\",<.>/?"; + +#ifndef _WIN32 + +static void WindowSizeChanged(int) { + // do nothing here but setting this flag + gotResize = true; +} + +#endif + +static const char* unsupported_term[] = {"dumb", "cons25", "emacs", NULL}; + +static bool isUnsupportedTerm(void) { + char* term = getenv("TERM"); + if (term == NULL) { + return false; + } + for (int j = 0; unsupported_term[j]; ++j) { + if (!strcasecmp(term, unsupported_term[j])) { + return true; + } + } + return false; +} + +} + +Replxx::ReplxxImpl::ReplxxImpl( FILE*, FILE*, FILE* ) + : _utf8Buffer() + , _data() + , _charWidths() + , _display() + , _displayInputLength( 0 ) + , _hint() + , _pos( 0 ) + , _prefix( 0 ) + , _hintSelection( -1 ) + , _history() + , _killRing() + , _maxHintRows( REPLXX_MAX_HINT_ROWS ) + , _hintDelay( 0 ) + , _breakChars( defaultBreakChars ) + , _completionCountCutoff( 100 ) + , _overwrite( false ) + , _doubleTabCompletion( false ) + , _completeOnEmpty( true ) + , _beepOnAmbiguousCompletion( false ) + , _noColor( false ) + , _keyPressHandlers() + , _terminal() + , _currentThread() + , _prompt( _terminal ) + , _completionCallback( nullptr ) + , _highlighterCallback( nullptr ) + , _hintCallback( nullptr ) + , _keyPresses() + , _messages() + , _completions() + , _completionContextLength( 0 ) + , _completionSelection( -1 ) + , _preloadedBuffer() + , _errorMessage() + , _modifiedState( false ) + , _mutex() { + using namespace std::placeholders; + bind_key( Replxx::KEY::control( 'A' ), std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::MOVE_CURSOR_TO_BEGINING_OF_LINE, _1 ) ); + bind_key( Replxx::KEY::HOME + 0, std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::MOVE_CURSOR_TO_BEGINING_OF_LINE, _1 ) ); + bind_key( Replxx::KEY::control( 'E' ), std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::MOVE_CURSOR_TO_END_OF_LINE, _1 ) ); + bind_key( Replxx::KEY::END + 0, std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::MOVE_CURSOR_TO_END_OF_LINE, _1 ) ); + bind_key( Replxx::KEY::control( 'B' ), std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::MOVE_CURSOR_LEFT, _1 ) ); + bind_key( Replxx::KEY::LEFT + 0, std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::MOVE_CURSOR_LEFT, _1 ) ); + bind_key( Replxx::KEY::control( 'F' ), std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::MOVE_CURSOR_RIGHT, _1 ) ); + bind_key( Replxx::KEY::RIGHT + 0, std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::MOVE_CURSOR_RIGHT, _1 ) ); + bind_key( Replxx::KEY::meta( 'b' ), std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::MOVE_CURSOR_ONE_WORD_LEFT, _1 ) ); + bind_key( Replxx::KEY::meta( 'B' ), std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::MOVE_CURSOR_ONE_WORD_LEFT, _1 ) ); + bind_key( Replxx::KEY::control( Replxx::KEY::LEFT ), std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::MOVE_CURSOR_ONE_WORD_LEFT, _1 ) ); + bind_key( Replxx::KEY::meta( Replxx::KEY::LEFT ), std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::MOVE_CURSOR_ONE_WORD_LEFT, _1 ) ); // Emacs allows Meta, readline don't + bind_key( Replxx::KEY::meta( 'f' ), std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::MOVE_CURSOR_ONE_WORD_RIGHT, _1 ) ); + bind_key( Replxx::KEY::meta( 'F' ), std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::MOVE_CURSOR_ONE_WORD_RIGHT, _1 ) ); + bind_key( Replxx::KEY::control( Replxx::KEY::RIGHT ), std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::MOVE_CURSOR_ONE_WORD_RIGHT, _1 ) ); + bind_key( Replxx::KEY::meta( Replxx::KEY::RIGHT ), std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::MOVE_CURSOR_ONE_WORD_RIGHT, _1 ) ); // Emacs allows Meta, readline don't + bind_key( Replxx::KEY::meta( Replxx::KEY::BACKSPACE ), std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::KILL_TO_WHITESPACE_ON_LEFT, _1 ) ); + bind_key( Replxx::KEY::meta( 'd' ), std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::KILL_TO_END_OF_WORD, _1 ) ); + bind_key( Replxx::KEY::meta( 'D' ), std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::KILL_TO_END_OF_WORD, _1 ) ); + bind_key( Replxx::KEY::control( 'W' ), std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::KILL_TO_BEGINING_OF_WORD, _1 ) ); + bind_key( Replxx::KEY::control( 'U' ), std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::KILL_TO_BEGINING_OF_LINE, _1 ) ); + bind_key( Replxx::KEY::control( 'K' ), std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::KILL_TO_END_OF_LINE, _1 ) ); + bind_key( Replxx::KEY::control( 'Y' ), std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::YANK, _1 ) ); + bind_key( Replxx::KEY::meta( 'y' ), std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::YANK_CYCLE, _1 ) ); + bind_key( Replxx::KEY::meta( 'Y' ), std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::YANK_CYCLE, _1 ) ); + bind_key( Replxx::KEY::meta( 'c' ), std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::CAPITALIZE_WORD, _1 ) ); + bind_key( Replxx::KEY::meta( 'C' ), std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::CAPITALIZE_WORD, _1 ) ); + bind_key( Replxx::KEY::meta( 'l' ), std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::LOWERCASE_WORD, _1 ) ); + bind_key( Replxx::KEY::meta( 'L' ), std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::LOWERCASE_WORD, _1 ) ); + bind_key( Replxx::KEY::meta( 'u' ), std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::UPPERCASE_WORD, _1 ) ); + bind_key( Replxx::KEY::meta( 'U' ), std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::UPPERCASE_WORD, _1 ) ); + bind_key( Replxx::KEY::control( 'T' ), std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::TRANSPOSE_CHARACTERS, _1 ) ); + bind_key( Replxx::KEY::control( 'C' ), std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::ABORT_LINE, _1 ) ); + bind_key( Replxx::KEY::control( 'D' ), std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::SEND_EOF, _1 ) ); + bind_key( Replxx::KEY::INSERT + 0, std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::TOGGLE_OVERWRITE_MODE, _1 ) ); + bind_key( 127, std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::DELETE_CHARACTER_UNDER_CURSOR, _1 ) ); + bind_key( Replxx::KEY::DELETE + 0, std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::DELETE_CHARACTER_UNDER_CURSOR, _1 ) ); + bind_key( Replxx::KEY::BACKSPACE + 0, std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::DELETE_CHARACTER_LEFT_OF_CURSOR, _1 ) ); + bind_key( Replxx::KEY::control( 'J' ), std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::COMMIT_LINE, _1 ) ); + bind_key( Replxx::KEY::ENTER + 0, std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::COMMIT_LINE, _1 ) ); + bind_key( Replxx::KEY::control( 'L' ), std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::CLEAR_SCREEN, _1 ) ); + bind_key( Replxx::KEY::control( 'N' ), std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::COMPLETE_NEXT, _1 ) ); + bind_key( Replxx::KEY::control( 'P' ), std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::COMPLETE_PREVIOUS, _1 ) ); + bind_key( Replxx::KEY::DOWN + 0, std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::HISTORY_NEXT, _1 ) ); + bind_key( Replxx::KEY::UP + 0, std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::HISTORY_PREVIOUS, _1 ) ); + bind_key( Replxx::KEY::meta( '>' ), std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::HISTORY_LAST, _1 ) ); + bind_key( Replxx::KEY::meta( '<' ), std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::HISTORY_FIRST, _1 ) ); + bind_key( Replxx::KEY::PAGE_DOWN + 0, std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::HISTORY_LAST, _1 ) ); + bind_key( Replxx::KEY::PAGE_UP + 0, std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::HISTORY_FIRST, _1 ) ); + bind_key( Replxx::KEY::control( Replxx::KEY::UP ), std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::HINT_PREVIOUS, _1 ) ); + bind_key( Replxx::KEY::control( Replxx::KEY::DOWN ), std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::HINT_NEXT, _1 ) ); +#ifndef _WIN32 + bind_key( Replxx::KEY::control( 'V' ), std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::VERBATIM_INSERT, _1 ) ); + bind_key( Replxx::KEY::control( 'Z' ), std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::SUSPEND, _1 ) ); +#endif + bind_key( Replxx::KEY::TAB + 0, std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::COMPLETE_LINE, _1 ) ); + bind_key( Replxx::KEY::control( 'R' ), std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::HISTORY_INCREMENTAL_SEARCH, _1 ) ); + bind_key( Replxx::KEY::control( 'S' ), std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::HISTORY_INCREMENTAL_SEARCH, _1 ) ); + bind_key( Replxx::KEY::meta( 'p' ), std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::HISTORY_COMMON_PREFIX_SEARCH, _1 ) ); + bind_key( Replxx::KEY::meta( 'P' ), std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::HISTORY_COMMON_PREFIX_SEARCH, _1 ) ); + bind_key( Replxx::KEY::meta( 'n' ), std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::HISTORY_COMMON_PREFIX_SEARCH, _1 ) ); + bind_key( Replxx::KEY::meta( 'N' ), std::bind( &ReplxxImpl::invoke, this, Replxx::ACTION::HISTORY_COMMON_PREFIX_SEARCH, _1 ) ); +} + +Replxx::ACTION_RESULT Replxx::ReplxxImpl::invoke( Replxx::ACTION action_, char32_t code ) { + switch ( action_ ) { + case ( Replxx::ACTION::INSERT_CHARACTER ): return ( action( RESET_KILL_ACTION, &Replxx::ReplxxImpl::insert_character, code ) ); + case ( Replxx::ACTION::DELETE_CHARACTER_UNDER_CURSOR ): return ( action( RESET_KILL_ACTION, &Replxx::ReplxxImpl::delete_character, code ) ); + case ( Replxx::ACTION::DELETE_CHARACTER_LEFT_OF_CURSOR ): return ( action( RESET_KILL_ACTION, &Replxx::ReplxxImpl::backspace_character, code ) ); + case ( Replxx::ACTION::KILL_TO_END_OF_LINE ): return ( action( WANT_REFRESH | SET_KILL_ACTION, &Replxx::ReplxxImpl::kill_to_end_of_line, code ) ); + case ( Replxx::ACTION::KILL_TO_BEGINING_OF_LINE ): return ( action( SET_KILL_ACTION, &Replxx::ReplxxImpl::kill_to_begining_of_line, code ) ); + case ( Replxx::ACTION::KILL_TO_END_OF_WORD ): return ( action( SET_KILL_ACTION, &Replxx::ReplxxImpl::kill_word_to_right, code ) ); + case ( Replxx::ACTION::KILL_TO_BEGINING_OF_WORD ): return ( action( SET_KILL_ACTION, &Replxx::ReplxxImpl::kill_word_to_left, code ) ); + case ( Replxx::ACTION::KILL_TO_WHITESPACE_ON_LEFT ): return ( action( SET_KILL_ACTION, &Replxx::ReplxxImpl::kill_to_whitespace_to_left, code ) ); + case ( Replxx::ACTION::YANK ): return ( action( NOOP, &Replxx::ReplxxImpl::yank, code ) ); + case ( Replxx::ACTION::YANK_CYCLE ): return ( action( NOOP, &Replxx::ReplxxImpl::yank_cycle, code ) ); + case ( Replxx::ACTION::MOVE_CURSOR_TO_BEGINING_OF_LINE ): return ( action( WANT_REFRESH, &Replxx::ReplxxImpl::go_to_begining_of_line, code ) ); + case ( Replxx::ACTION::MOVE_CURSOR_TO_END_OF_LINE ): return ( action( WANT_REFRESH, &Replxx::ReplxxImpl::go_to_end_of_line, code ) ); + case ( Replxx::ACTION::MOVE_CURSOR_ONE_WORD_LEFT ): return ( action( RESET_KILL_ACTION, &Replxx::ReplxxImpl::move_one_word_left, code ) ); + case ( Replxx::ACTION::MOVE_CURSOR_ONE_WORD_RIGHT ): return ( action( RESET_KILL_ACTION, &Replxx::ReplxxImpl::move_one_word_right, code ) ); + case ( Replxx::ACTION::MOVE_CURSOR_LEFT ): return ( action( RESET_KILL_ACTION, &Replxx::ReplxxImpl::move_one_char_left, code ) ); + case ( Replxx::ACTION::MOVE_CURSOR_RIGHT ): return ( action( RESET_KILL_ACTION, &Replxx::ReplxxImpl::move_one_char_right, code ) ); + case ( Replxx::ACTION::HISTORY_NEXT ): return ( action( RESET_KILL_ACTION, &Replxx::ReplxxImpl::history_next, code ) ); + case ( Replxx::ACTION::HISTORY_PREVIOUS ): return ( action( RESET_KILL_ACTION, &Replxx::ReplxxImpl::history_previous, code ) ); + case ( Replxx::ACTION::HISTORY_FIRST ): return ( action( RESET_KILL_ACTION, &Replxx::ReplxxImpl::history_first, code ) ); + case ( Replxx::ACTION::HISTORY_LAST ): return ( action( RESET_KILL_ACTION, &Replxx::ReplxxImpl::history_last, code ) ); + case ( Replxx::ACTION::HISTORY_INCREMENTAL_SEARCH ): return ( action( NOOP, &Replxx::ReplxxImpl::incremental_history_search, code ) ); + case ( Replxx::ACTION::HISTORY_COMMON_PREFIX_SEARCH ): return ( action( RESET_KILL_ACTION | DONT_RESET_PREFIX, &Replxx::ReplxxImpl::common_prefix_search, code ) ); + case ( Replxx::ACTION::HINT_NEXT ): return ( action( NOOP, &Replxx::ReplxxImpl::hint_next, code ) ); + case ( Replxx::ACTION::HINT_PREVIOUS ): return ( action( NOOP, &Replxx::ReplxxImpl::hint_previous, code ) ); + case ( Replxx::ACTION::CAPITALIZE_WORD ): return ( action( RESET_KILL_ACTION, &Replxx::ReplxxImpl::capitalize_word, code ) ); + case ( Replxx::ACTION::LOWERCASE_WORD ): return ( action( RESET_KILL_ACTION, &Replxx::ReplxxImpl::lowercase_word, code ) ); + case ( Replxx::ACTION::UPPERCASE_WORD ): return ( action( RESET_KILL_ACTION, &Replxx::ReplxxImpl::uppercase_word, code ) ); + case ( Replxx::ACTION::TRANSPOSE_CHARACTERS ): return ( action( RESET_KILL_ACTION, &Replxx::ReplxxImpl::transpose_characters, code ) ); + case ( Replxx::ACTION::TOGGLE_OVERWRITE_MODE ): return ( action( NOOP, &Replxx::ReplxxImpl::toggle_overwrite_mode, code ) ); +#ifndef _WIN32 + case ( Replxx::ACTION::VERBATIM_INSERT ): return ( action( WANT_REFRESH | RESET_KILL_ACTION, &Replxx::ReplxxImpl::verbatim_insert, code ) ); + case ( Replxx::ACTION::SUSPEND ): return ( action( WANT_REFRESH, &Replxx::ReplxxImpl::suspend, code ) ); +#endif + case ( Replxx::ACTION::CLEAR_SCREEN ): return ( action( NOOP, &Replxx::ReplxxImpl::clear_screen, code ) ); + case ( Replxx::ACTION::CLEAR_SELF ): clear_self_to_end_of_screen(); return ( Replxx::ACTION_RESULT::CONTINUE ); + case ( Replxx::ACTION::REPAINT ): repaint(); return ( Replxx::ACTION_RESULT::CONTINUE ); + case ( Replxx::ACTION::COMPLETE_LINE ): return ( action( NOOP, &Replxx::ReplxxImpl::complete_line, code ) ); + case ( Replxx::ACTION::COMPLETE_NEXT ): return ( action( DONT_RESET_COMPLETIONS, &Replxx::ReplxxImpl::complete_next, code ) ); + case ( Replxx::ACTION::COMPLETE_PREVIOUS ): return ( action( DONT_RESET_COMPLETIONS, &Replxx::ReplxxImpl::complete_previous, code ) ); + case ( Replxx::ACTION::COMMIT_LINE ): return ( action( RESET_KILL_ACTION, &Replxx::ReplxxImpl::commit_line, code ) ); + case ( Replxx::ACTION::ABORT_LINE ): return ( action( RESET_KILL_ACTION, &Replxx::ReplxxImpl::abort_line, code ) ); + case ( Replxx::ACTION::SEND_EOF ): return ( action( NOOP, &Replxx::ReplxxImpl::send_eof, code ) ); + } + return ( Replxx::ACTION_RESULT::BAIL ); +} + +void Replxx::ReplxxImpl::bind_key( char32_t code_, Replxx::key_press_handler_t handler_ ) { + _keyPressHandlers[code_] = handler_; +} + +Replxx::State Replxx::ReplxxImpl::get_state( void ) const { + _utf8Buffer.assign( _data ); + return ( Replxx::State( _utf8Buffer.get(), _pos ) ); +} + +void Replxx::ReplxxImpl::set_state( Replxx::State const& state_ ) { + _data.assign( state_.text() ); + if ( state_.cursor_position() >= 0 ) { + _pos = min( state_.cursor_position(), _data.length() ); + } + _modifiedState = true; +} + +char32_t Replxx::ReplxxImpl::read_char( HINT_ACTION hintAction_ ) { + /* try scheduled key presses */ { + std::lock_guard<std::mutex> l( _mutex ); + if ( !_keyPresses.empty() ) { + char32_t keyPress( _keyPresses.front() ); + _keyPresses.pop_front(); + return ( keyPress ); + } + } + int hintDelay( hintAction_ != HINT_ACTION::SKIP ? _hintDelay : 0 ); + while ( true ) { + Terminal::EVENT_TYPE eventType( _terminal.wait_for_input( hintDelay ) ); + if ( eventType == Terminal::EVENT_TYPE::TIMEOUT ) { + refresh_line( HINT_ACTION::REPAINT ); + hintDelay = 0; + continue; + } + if ( eventType == Terminal::EVENT_TYPE::KEY_PRESS ) { + break; + } + std::lock_guard<std::mutex> l( _mutex ); + clear_self_to_end_of_screen(); + while ( ! _messages.empty() ) { + string const& message( _messages.front() ); + _terminal.write8( message.data(), message.length() ); + _messages.pop_front(); + } + repaint(); + } + /* try scheduled key presses */ { + std::lock_guard<std::mutex> l( _mutex ); + if ( !_keyPresses.empty() ) { + char32_t keyPress( _keyPresses.front() ); + _keyPresses.pop_front(); + return ( keyPress ); + } + } + return ( _terminal.read_char() ); +} + +void Replxx::ReplxxImpl::clear( void ) { + _pos = 0; + _prefix = 0; + _completions.clear(); + _completionContextLength = 0; + _completionSelection = -1; + _data.clear(); + _hintSelection = -1; + _hint = UnicodeString(); + _display.clear(); + _displayInputLength = 0; +} + +Replxx::ReplxxImpl::completions_t Replxx::ReplxxImpl::call_completer( std::string const& input, int& contextLen_ ) const { + Replxx::completions_t completionsIntermediary( + !! _completionCallback + ? _completionCallback( input, contextLen_ ) + : Replxx::completions_t() + ); + completions_t completions; + completions.reserve( completionsIntermediary.size() ); + for ( Replxx::Completion const& c : completionsIntermediary ) { + completions.emplace_back( c ); + } + return ( completions ); +} + +Replxx::ReplxxImpl::hints_t Replxx::ReplxxImpl::call_hinter( std::string const& input, int& contextLen, Replxx::Color& color ) const { + Replxx::hints_t hintsIntermediary( + !! _hintCallback + ? _hintCallback( input, contextLen, color ) + : Replxx::hints_t() + ); + hints_t hints; + hints.reserve( hintsIntermediary.size() ); + for ( std::string const& h : hintsIntermediary ) { + hints.emplace_back( h.c_str() ); + } + return ( hints ); +} + +void Replxx::ReplxxImpl::set_preload_buffer( std::string const& preloadText ) { + _preloadedBuffer = preloadText; + // remove characters that won't display correctly + bool controlsStripped = false; + int whitespaceSeen( 0 ); + for ( std::string::iterator it( _preloadedBuffer.begin() ); it != _preloadedBuffer.end(); ) { + unsigned char c = *it; + if ( '\r' == c ) { // silently skip CR + _preloadedBuffer.erase( it, it + 1 ); + continue; + } + if ( ( '\n' == c ) || ( '\t' == c ) ) { // note newline or tab + ++ whitespaceSeen; + ++ it; + continue; + } + if ( whitespaceSeen > 0 ) { + it -= whitespaceSeen; + *it = ' '; + _preloadedBuffer.erase( it + 1, it + whitespaceSeen - 1 ); + } + if ( is_control_code( c ) ) { // remove other control characters, flag for message + controlsStripped = true; + if ( whitespaceSeen > 0 ) { + _preloadedBuffer.erase( it, it + 1 ); + -- it; + } else { + *it = ' '; + } + } + whitespaceSeen = 0; + ++ it; + } + if ( whitespaceSeen > 0 ) { + std::string::iterator it = _preloadedBuffer.end() - whitespaceSeen; + *it = ' '; + if ( whitespaceSeen > 1 ) { + _preloadedBuffer.erase( it + 1, _preloadedBuffer.end() ); + } + } + _errorMessage.clear(); + if ( controlsStripped ) { + _errorMessage.assign( " [Edited line: control characters were converted to spaces]\n" ); + } +} + +char const* Replxx::ReplxxImpl::read_from_stdin( void ) { + if ( _preloadedBuffer.empty() ) { + getline( cin, _preloadedBuffer ); + if ( ! cin.good() ) { + return nullptr; + } + } + while ( ! _preloadedBuffer.empty() && ( ( _preloadedBuffer.back() == '\r' ) || ( _preloadedBuffer.back() == '\n' ) ) ) { + _preloadedBuffer.pop_back(); + } + _utf8Buffer.assign( _preloadedBuffer ); + _preloadedBuffer.clear(); + return _utf8Buffer.get(); +} + +void Replxx::ReplxxImpl::emulate_key_press( char32_t keyCode_ ) { + std::lock_guard<std::mutex> l( _mutex ); + _keyPresses.push_back( keyCode_ ); + if ( ( _currentThread != std::thread::id() ) && ( _currentThread != std::this_thread::get_id() ) ) { + _terminal.notify_event( Terminal::EVENT_TYPE::KEY_PRESS ); + } +} + +char const* Replxx::ReplxxImpl::input( std::string const& prompt ) { +#ifndef _WIN32 + gotResize = false; +#endif + try { + errno = 0; + if ( ! tty::in ) { // input not from a terminal, we should work with piped input, i.e. redirected stdin + return ( read_from_stdin() ); + } + if (!_errorMessage.empty()) { + printf("%s", _errorMessage.c_str()); + fflush(stdout); + _errorMessage.clear(); + } + if ( isUnsupportedTerm() ) { + cout << prompt << flush; + fflush(stdout); + return ( read_from_stdin() ); + } + if (_terminal.enable_raw_mode() == -1) { + return nullptr; + } + _prompt.set_text( UnicodeString( prompt ) ); + _currentThread = std::this_thread::get_id(); + clear(); + if (!_preloadedBuffer.empty()) { + preload_puffer(_preloadedBuffer.c_str()); + _preloadedBuffer.clear(); + } + if ( get_input_line() == -1 ) { + return ( finalize_input( nullptr ) ); + } + printf("\n"); + _utf8Buffer.assign( _data ); + return ( finalize_input( _utf8Buffer.get() ) ); + } catch ( std::exception const& ) { + return ( finalize_input( nullptr ) ); + } +} + +char const* Replxx::ReplxxImpl::finalize_input( char const* retVal_ ) { + _currentThread = std::thread::id(); + _terminal.disable_raw_mode(); + return ( retVal_ ); +} + +int Replxx::ReplxxImpl::install_window_change_handler( void ) { +#ifndef _WIN32 + struct sigaction sa; + sigemptyset(&sa.sa_mask); + sa.sa_flags = 0; + sa.sa_handler = &WindowSizeChanged; + + if (sigaction(SIGWINCH, &sa, nullptr) == -1) { + return errno; + } +#endif + return 0; +} + +void Replxx::ReplxxImpl::print( char const* str_, int size_ ) { + if ( ( _currentThread == std::thread::id() ) || ( _currentThread == std::this_thread::get_id() ) ) { + _terminal.write8( str_, size_ ); + } else { + std::lock_guard<std::mutex> l( _mutex ); + _messages.emplace_back( str_, size_ ); + _terminal.notify_event( Terminal::EVENT_TYPE::MESSAGE ); + } + return; +} + +void Replxx::ReplxxImpl::preload_puffer(const char* preloadText) { + _data.assign( preloadText ); + _charWidths.resize( _data.length() ); + recompute_character_widths( _data.get(), _charWidths.data(), _data.length() ); + _prefix = _pos = _data.length(); +} + +void Replxx::ReplxxImpl::set_color( Replxx::Color color_ ) { + char const* code( ansi_color( color_ ) ); + while ( *code ) { + _display.push_back( *code ); + ++ code; + } +} + +void Replxx::ReplxxImpl::render( char32_t ch ) { + if ( ch == Replxx::KEY::ESCAPE ) { + _display.push_back( '^' ); + _display.push_back( '[' ); + } else if ( is_control_code( ch ) ) { + _display.push_back( '^' ); + _display.push_back( ch + 0x40 ); + } else { + _display.push_back( ch ); + } + return; +} + +void Replxx::ReplxxImpl::render( HINT_ACTION hintAction_ ) { + if ( hintAction_ == HINT_ACTION::TRIM ) { + _display.erase( _display.begin() + _displayInputLength, _display.end() ); + return; + } + if ( hintAction_ == HINT_ACTION::SKIP ) { + return; + } + _display.clear(); + if ( _noColor ) { + for ( char32_t ch : _data ) { + render( ch ); + } + _displayInputLength = _display.size(); + return; + } + Replxx::colors_t colors( _data.length(), Replxx::Color::DEFAULT ); + _utf8Buffer.assign( _data ); + if ( !! _highlighterCallback ) { + _highlighterCallback( _utf8Buffer.get(), colors ); + } + paren_info_t pi( matching_paren() ); + if ( pi.index != -1 ) { + colors[pi.index] = pi.error ? Replxx::Color::ERROR : Replxx::Color::BRIGHTRED; + } + Replxx::Color c( Replxx::Color::DEFAULT ); + for ( int i( 0 ); i < _data.length(); ++ i ) { + if ( colors[i] != c ) { + c = colors[i]; + set_color( c ); + } + render( _data[i] ); + } + set_color( Replxx::Color::DEFAULT ); + _displayInputLength = _display.size(); + _modifiedState = false; + return; +} + +int Replxx::ReplxxImpl::handle_hints( HINT_ACTION hintAction_ ) { + if ( _noColor ) { + return ( 0 ); + } + if ( ! _hintCallback ) { + return ( 0 ); + } + if ( ( _hintDelay > 0 ) && ( hintAction_ != HINT_ACTION::REPAINT ) ) { + _hintSelection = -1; + return ( 0 ); + } + if ( ( hintAction_ == HINT_ACTION::SKIP ) || ( hintAction_ == HINT_ACTION::TRIM ) ) { + return ( 0 ); + } + if ( _pos != _data.length() ) { + return ( 0 ); + } + _hint = UnicodeString(); + int len( 0 ); + if ( hintAction_ == HINT_ACTION::REGENERATE ) { + _hintSelection = -1; + } + Replxx::Color c( Replxx::Color::GRAY ); + _utf8Buffer.assign( _data, _pos ); + int contextLen( context_length() ); + Replxx::ReplxxImpl::hints_t hints( call_hinter( _utf8Buffer.get(), contextLen, c ) ); + int hintCount( hints.size() ); + if ( hintCount == 1 ) { + _hint = hints.front(); + len = _hint.length() - contextLen; + if ( len > 0 ) { + set_color( c ); + for ( int i( 0 ); i < len; ++ i ) { + _display.push_back( _hint[i + contextLen] ); + } + set_color( Replxx::Color::DEFAULT ); + } + } else if ( ( _maxHintRows > 0 ) && ( hintCount > 0 ) ) { + int startCol( _prompt._indentation + _pos - contextLen ); + int maxCol( _prompt.screen_columns() ); +#ifdef _WIN32 + -- maxCol; +#endif + if ( _hintSelection < -1 ) { + _hintSelection = hintCount - 1; + } else if ( _hintSelection >= hintCount ) { + _hintSelection = -1; + } + if ( _hintSelection != -1 ) { + _hint = hints[_hintSelection]; + len = min<int>( _hint.length(), maxCol - startCol - _data.length() ); + if ( contextLen < len ) { + set_color( c ); + for ( int i( contextLen ); i < len; ++ i ) { + _display.push_back( _hint[i] ); + } + set_color( Replxx::Color::DEFAULT ); + } + } + for ( int hintRow( 0 ); hintRow < min( hintCount, _maxHintRows ); ++ hintRow ) { +#ifdef _WIN32 + _display.push_back( '\r' ); +#endif + _display.push_back( '\n' ); + int col( 0 ); + for ( int i( 0 ); ( i < startCol ) && ( col < maxCol ); ++ i, ++ col ) { + _display.push_back( ' ' ); + } + set_color( c ); + for ( int i( _pos - contextLen ); ( i < _pos ) && ( col < maxCol ); ++ i, ++ col ) { + _display.push_back( _data[i] ); + } + int hintNo( hintRow + _hintSelection + 1 ); + if ( hintNo == hintCount ) { + continue; + } else if ( hintNo > hintCount ) { + -- hintNo; + } + UnicodeString const& h( hints[hintNo % hintCount] ); + for ( int i( contextLen ); ( i < h.length() ) && ( col < maxCol ); ++ i, ++ col ) { + _display.push_back( h[i] ); + } + set_color( Replxx::Color::DEFAULT ); + } + } + return ( len ); +} + +Replxx::ReplxxImpl::paren_info_t Replxx::ReplxxImpl::matching_paren( void ) { + if (_pos >= _data.length()) { + return ( paren_info_t{ -1, false } ); + } + /* this scans for a brace matching _data[_pos] to highlight */ + unsigned char part1, part2; + int scanDirection = 0; + if ( strchr("}])", _data[_pos]) ) { + scanDirection = -1; /* backwards */ + if (_data[_pos] == '}') { + part1 = '}'; part2 = '{'; + } else if (_data[_pos] == ']') { + part1 = ']'; part2 = '['; + } else { + part1 = ')'; part2 = '('; + } + } else if ( strchr("{[(", _data[_pos]) ) { + scanDirection = 1; /* forwards */ + if (_data[_pos] == '{') { + //part1 = '{'; part2 = '}'; + part1 = '}'; part2 = '{'; + } else if (_data[_pos] == '[') { + //part1 = '['; part2 = ']'; + part1 = ']'; part2 = '['; + } else { + //part1 = '('; part2 = ')'; + part1 = ')'; part2 = '('; + } + } else { + return ( paren_info_t{ -1, false } ); + } + int highlightIdx = -1; + bool indicateError = false; + int unmatched = scanDirection; + int unmatchedOther = 0; + for (int i = _pos + scanDirection; i >= 0 && i < _data.length(); i += scanDirection) { + /* TODO: the right thing when inside a string */ + if (strchr("}])", _data[i])) { + if (_data[i] == part1) { + --unmatched; + } else { + --unmatchedOther; + } + } else if (strchr("{[(", _data[i])) { + if (_data[i] == part2) { + ++unmatched; + } else { + ++unmatchedOther; + } + } + + if (unmatched == 0) { + highlightIdx = i; + indicateError = (unmatchedOther != 0); + break; + } + } + return ( paren_info_t{ highlightIdx, indicateError } ); +} + +/** + * Refresh the user's input line: the prompt is already onscreen and is not + * redrawn here screen position + */ +void Replxx::ReplxxImpl::refresh_line( HINT_ACTION hintAction_ ) { + // check for a matching brace/bracket/paren, remember its position if found + render( hintAction_ ); + int hintLen( handle_hints( hintAction_ ) ); + // calculate the position of the end of the input line + int xEndOfInput( 0 ), yEndOfInput( 0 ); + calculate_screen_position( + _prompt._indentation, 0, _prompt.screen_columns(), + calculate_displayed_length( _data.get(), _data.length() ) + hintLen, + xEndOfInput, yEndOfInput + ); + yEndOfInput += count( _display.begin(), _display.end(), '\n' ); + + // calculate the desired position of the cursor + int xCursorPos( 0 ), yCursorPos( 0 ); + calculate_screen_position( + _prompt._indentation, 0, _prompt.screen_columns(), + calculate_displayed_length( _data.get(), _pos ), + xCursorPos, yCursorPos + ); + + // position at the end of the prompt, clear to end of previous input + _terminal.jump_cursor( + _prompt._indentation, // 0-based on Win32 + -( _prompt._cursorRowOffset - _prompt._extraLines ) + ); + _terminal.clear_screen( Terminal::CLEAR_SCREEN::TO_END ); + _prompt._previousInputLen = _data.length(); + // display the input line + _terminal.write32( _display.data(), _display.size() ); +#ifndef _WIN32 + // we have to generate our own newline on line wrap + if ( ( xEndOfInput == 0 ) && ( yEndOfInput > 0 ) ) { + _terminal.write8( "\n", 1 ); + } +#endif + // position the cursor + _terminal.jump_cursor( xCursorPos, -( yEndOfInput - yCursorPos ) ); + _prompt._cursorRowOffset = _prompt._extraLines + yCursorPos; // remember row for next pass +} + +int Replxx::ReplxxImpl::context_length() { + int prefixLength = _pos; + while ( prefixLength > 0 ) { + if ( is_word_break_character( _data[prefixLength - 1] ) ) { + break; + } + -- prefixLength; + } + return ( _pos - prefixLength ); +} + +void Replxx::ReplxxImpl::repaint( void ) { + _prompt.write(); + for ( int i( _prompt._extraLines ); i < _prompt._cursorRowOffset; ++ i ) { + _terminal.write8( "\n", 1 ); + } + refresh_line( HINT_ACTION::SKIP ); +} + +void Replxx::ReplxxImpl::clear_self_to_end_of_screen( void ) { + // position at the start of the prompt, clear to end of previous input + _terminal.jump_cursor( 0, -_prompt._cursorRowOffset ); + _terminal.clear_screen( Terminal::CLEAR_SCREEN::TO_END ); + return; +} + +namespace { +int longest_common_prefix( Replxx::ReplxxImpl::completions_t const& completions ) { + int completionsCount( completions.size() ); + if ( completionsCount < 1 ) { + return ( 0 ); + } + int longestCommonPrefix( 0 ); + UnicodeString const& sample( completions.front().text() ); + while ( true ) { + if ( longestCommonPrefix >= sample.length() ) { + return ( longestCommonPrefix ); + } + char32_t sc( sample[longestCommonPrefix] ); + for ( int i( 1 ); i < completionsCount; ++ i ) { + UnicodeString const& candidate( completions[i].text() ); + if ( longestCommonPrefix >= candidate.length() ) { + return ( longestCommonPrefix ); + } + char32_t cc( candidate[longestCommonPrefix] ); + if ( cc != sc ) { + return ( longestCommonPrefix ); + } + } + ++ longestCommonPrefix; + } +} +} + +/** + * Handle command completion, using a completionCallback() routine to provide + * possible substitutions + * This routine handles the mechanics of updating the user's input buffer with + * possible replacement of text as the user selects a proposed completion string, + * or cancels the completion attempt. + * @param pi - Prompt struct holding information about the prompt and our + * screen position + */ +char32_t Replxx::ReplxxImpl::do_complete_line( bool showCompletions_ ) { + char32_t c = 0; + + // completionCallback() expects a parsable entity, so find the previous break + // character and + // extract a copy to parse. we also handle the case where tab is hit while + // not at end-of-line. + + _utf8Buffer.assign( _data, _pos ); + // get a list of completions + _completionSelection = -1; + _completionContextLength = context_length(); + _completions = call_completer( _utf8Buffer.get(), _completionContextLength ); + + // if no completions, we are done + if ( _completions.empty() ) { + beep(); + return 0; + } + + // at least one completion + int longestCommonPrefix = 0; + int completionsCount( _completions.size() ); + int selectedCompletion( 0 ); + if ( _hintSelection != -1 ) { + selectedCompletion = _hintSelection; + completionsCount = 1; + } + if ( completionsCount == 1 ) { + longestCommonPrefix = static_cast<int>( _completions[selectedCompletion].text().length() ); + } else { + longestCommonPrefix = longest_common_prefix( _completions ); + } + if ( _beepOnAmbiguousCompletion && ( completionsCount != 1 ) ) { // beep if ambiguous + beep(); + } + + // if we can extend the item, extend it and return to main loop + if ( ( longestCommonPrefix > _completionContextLength ) || ( completionsCount == 1 ) ) { + _pos -= _completionContextLength; + _data.erase( _pos, _completionContextLength ); + _data.insert( _pos, _completions[selectedCompletion].text(), 0, longestCommonPrefix ); + _pos = _pos + longestCommonPrefix; + _completionContextLength = longestCommonPrefix; + refresh_line(); + return 0; + } + + if ( ! showCompletions_ ) { + return ( 0 ); + } + + if ( _doubleTabCompletion ) { + // we can't complete any further, wait for second tab + do { + c = read_char(); + } while ( c == static_cast<char32_t>( -1 ) ); + + // if any character other than tab, pass it to the main loop + if ( c != Replxx::KEY::TAB ) { + return c; + } + } + + // we got a second tab, maybe show list of possible completions + bool showCompletions = true; + bool onNewLine = false; + if ( static_cast<int>( _completions.size() ) > _completionCountCutoff ) { + int savePos = _pos; // move cursor to EOL to avoid overwriting the command line + _pos = _data.length(); + refresh_line(); + _pos = savePos; + printf( "\nDisplay all %u possibilities? (y or n)", static_cast<unsigned int>( _completions.size() ) ); + fflush(stdout); + onNewLine = true; + while (c != 'y' && c != 'Y' && c != 'n' && c != 'N' && c != Replxx::KEY::control('C')) { + do { + c = read_char(); + } while (c == static_cast<char32_t>(-1)); + } + switch (c) { + case 'n': + case 'N': + showCompletions = false; + break; + case Replxx::KEY::control('C'): + showCompletions = false; + // Display the ^C we got + _terminal.write8( "^C", 2 ); + c = 0; + break; + } + } + + // if showing the list, do it the way readline does it + bool stopList( false ); + if ( showCompletions ) { + int longestCompletion( 0 ); + for ( size_t j( 0 ); j < _completions.size(); ++ j ) { + int itemLength( static_cast<int>( _completions[j].text().length() ) ); + if ( itemLength > longestCompletion ) { + longestCompletion = itemLength; + } + } + longestCompletion += 2; + int columnCount = _prompt.screen_columns() / longestCompletion; + if ( columnCount < 1 ) { + columnCount = 1; + } + if ( ! onNewLine ) { // skip this if we showed "Display all %d possibilities?" + int savePos = _pos; // move cursor to EOL to avoid overwriting the command line + _pos = _data.length(); + refresh_line( HINT_ACTION::TRIM ); + _pos = savePos; + } else { + _terminal.clear_screen( Terminal::CLEAR_SCREEN::TO_END ); + } + size_t pauseRow = _terminal.get_screen_rows() - 1; + size_t rowCount = (_completions.size() + columnCount - 1) / columnCount; + for (size_t row = 0; row < rowCount; ++row) { + if (row == pauseRow) { + printf("\n--More--"); + fflush(stdout); + c = 0; + bool doBeep = false; + while (c != ' ' && c != Replxx::KEY::ENTER && c != 'y' && c != 'Y' && + c != 'n' && c != 'N' && c != 'q' && c != 'Q' && + c != Replxx::KEY::control('C')) { + if (doBeep) { + beep(); + } + doBeep = true; + do { + c = read_char(); + } while (c == static_cast<char32_t>(-1)); + } + switch (c) { + case ' ': + case 'y': + case 'Y': + printf("\r \r"); + pauseRow += _terminal.get_screen_rows() - 1; + break; + case Replxx::KEY::ENTER: + printf("\r \r"); + ++pauseRow; + break; + case 'n': + case 'N': + case 'q': + case 'Q': + printf("\r \r"); + stopList = true; + break; + case Replxx::KEY::control('C'): + // Display the ^C we got + _terminal.write8( "^C", 2 ); + stopList = true; + break; + } + } else { + printf("\n"); + } + if (stopList) { + break; + } + static UnicodeString const res( ansi_color( Replxx::Color::DEFAULT ) ); + for (int column = 0; column < columnCount; ++column) { + size_t index = (column * rowCount) + row; + if ( index < _completions.size() ) { + Completion const& c( _completions[index] ); + int itemLength = static_cast<int>(c.text().length()); + fflush(stdout); + + if ( longestCommonPrefix > 0 ) { + static UnicodeString const col( ansi_color( Replxx::Color::BRIGHTMAGENTA ) ); + if (!_noColor) { + _terminal.write32(col.get(), col.length()); + } + _terminal.write32(&_data[_pos - _completionContextLength], longestCommonPrefix); + if (!_noColor) { + _terminal.write32(res.get(), res.length()); + } + } + + if ( !_noColor && ( c.color() != Replxx::Color::DEFAULT ) ) { + UnicodeString ac( ansi_color( c.color() ) ); + _terminal.write32( ac.get(), ac.length() ); + } + _terminal.write32( c.text().get() + longestCommonPrefix, itemLength - longestCommonPrefix ); + if ( !_noColor && ( c.color() != Replxx::Color::DEFAULT ) ) { + _terminal.write32( res.get(), res.length() ); + } + + if ( ((column + 1) * rowCount) + row < _completions.size() ) { + for ( int k( itemLength ); k < longestCompletion; ++k ) { + printf( " " ); + } + } + } + } + } + fflush(stdout); + } + + // display the prompt on a new line, then redisplay the input buffer + if (!stopList || c == Replxx::KEY::control('C')) { + _terminal.write8( "\n", 1 ); + } + _prompt.write(); +#ifndef _WIN32 + // we have to generate our own newline on line wrap on Linux + if (_prompt._indentation == 0 && _prompt._extraLines > 0) { + _terminal.write8( "\n", 1 ); + } +#endif + _prompt._cursorRowOffset = _prompt._extraLines; + refresh_line(); + return 0; +} + +int Replxx::ReplxxImpl::get_input_line( void ) { + // The latest history entry is always our current buffer + if ( _data.length() > 0 ) { + _history.add( _data ); + } else { + _history.add( UnicodeString() ); + } + _history.reset_pos(); + + // display the prompt + _prompt.write(); + +#ifndef _WIN32 + // we have to generate our own newline on line wrap on Linux + if ( ( _prompt._indentation == 0 ) && ( _prompt._extraLines > 0 ) ) { + _terminal.write8( "\n", 1 ); + } +#endif + + // the cursor starts out at the end of the prompt + _prompt._cursorRowOffset = _prompt._extraLines; + + // kill and yank start in "other" mode + _killRing.lastAction = KillRing::actionOther; + + // if there is already text in the buffer, display it first + if (_data.length() > 0) { + refresh_line(); + } + + // loop collecting characters, respond to line editing characters + Replxx::ACTION_RESULT next( Replxx::ACTION_RESULT::CONTINUE ); + while ( next == Replxx::ACTION_RESULT::CONTINUE ) { + int c( read_char( HINT_ACTION::REPAINT ) ); // get a new keystroke +#ifndef _WIN32 + if (c == 0 && gotResize) { + // caught a window resize event + // now redraw the prompt and line + gotResize = false; + _prompt.update_screen_columns(); + // redraw the original prompt with current input + dynamicRefresh( _prompt, _data.get(), _data.length(), _pos ); + continue; + } +#endif + + if (c == 0) { + return _data.length(); + } + + if (c == -1) { + refresh_line(); + continue; + } + + if (c == -2) { + _prompt.write(); + refresh_line(); + continue; + } + + key_press_handlers_t::iterator it( _keyPressHandlers.find( c ) ); + if ( it != _keyPressHandlers.end() ) { + next = it->second( c ); + if ( _modifiedState ) { + refresh_line(); + } + } else { + next = action( RESET_KILL_ACTION, &Replxx::ReplxxImpl::insert_character, c ); + } + } + return ( next == Replxx::ACTION_RESULT::RETURN ? _data.length() : -1 ); +} + +Replxx::ACTION_RESULT Replxx::ReplxxImpl::action( action_trait_t actionTrait_, key_press_handler_raw_t const& handler_, char32_t code_ ) { + Replxx::ACTION_RESULT res( ( this->*handler_ )( code_ ) ); + if ( actionTrait_ & RESET_KILL_ACTION ) { + _killRing.lastAction = KillRing::actionOther; + } + if ( actionTrait_ & SET_KILL_ACTION ) { + _killRing.lastAction = KillRing::actionKill; + } + if ( ! ( actionTrait_ & DONT_RESET_PREFIX ) ) { + _prefix = _pos; + } + if ( ! ( actionTrait_ & DONT_RESET_COMPLETIONS ) ) { + _completions.clear(); + _completionSelection = -1; + _completionContextLength = 0; + } + if ( actionTrait_ & WANT_REFRESH ) { + _modifiedState = true; + } + return ( res ); +} + +Replxx::ACTION_RESULT Replxx::ReplxxImpl::insert_character( char32_t c ) { + _history.reset_recall_most_recent(); + /* + * beep on unknown Ctrl and/or Meta keys + * don't insert control characters + */ + if ( ( c >= static_cast<int>( Replxx::KEY::BASE ) ) || is_control_code( c ) ) { + beep(); + return ( Replxx::ACTION_RESULT::CONTINUE ); + } + if ( ! _overwrite || ( _pos >= _data.length() ) ) { + _data.insert( _pos, c ); + } else { + _data[_pos] = c; + } + ++ _pos; + int inputLen = calculate_displayed_length( _data.get(), _data.length() ); + if ( + ( _pos == _data.length() ) + && ( _noColor || ! ( !! _highlighterCallback || !! _hintCallback ) ) + && ( _prompt._indentation + inputLen < _prompt.screen_columns() ) + ) { + /* Avoid a full assign of the line in the + * trivial case. */ + if (inputLen > _prompt._previousInputLen) { + _prompt._previousInputLen = inputLen; + } + render( c ); + _displayInputLength = _display.size(); + _terminal.write32(reinterpret_cast<char32_t*>(&c), 1); + } else { + refresh_line(); + } + return ( Replxx::ACTION_RESULT::CONTINUE ); +} + +// ctrl-A, HOME: move cursor to start of line +Replxx::ACTION_RESULT Replxx::ReplxxImpl::go_to_begining_of_line( char32_t ) { + _pos = 0; + return ( Replxx::ACTION_RESULT::CONTINUE ); +} + +Replxx::ACTION_RESULT Replxx::ReplxxImpl::go_to_end_of_line( char32_t ) { + _pos = _data.length(); + return ( Replxx::ACTION_RESULT::CONTINUE ); +} + +// ctrl-B, move cursor left by one character +Replxx::ACTION_RESULT Replxx::ReplxxImpl::move_one_char_left( char32_t ) { + if (_pos > 0) { + --_pos; + refresh_line(); + } + return ( Replxx::ACTION_RESULT::CONTINUE ); +} + +// ctrl-F, move cursor right by one character +Replxx::ACTION_RESULT Replxx::ReplxxImpl::move_one_char_right( char32_t ) { + if ( _pos < _data.length() ) { + ++_pos; + refresh_line(); + } + return ( Replxx::ACTION_RESULT::CONTINUE ); +} + +// meta-B, move cursor left by one word +Replxx::ACTION_RESULT Replxx::ReplxxImpl::move_one_word_left( char32_t ) { + if (_pos > 0) { + while (_pos > 0 && is_word_break_character( _data[_pos - 1] ) ) { + --_pos; + } + while (_pos > 0 && !is_word_break_character( _data[_pos - 1] ) ) { + --_pos; + } + refresh_line(); + } + return ( Replxx::ACTION_RESULT::CONTINUE ); +} + +// meta-F, move cursor right by one word +Replxx::ACTION_RESULT Replxx::ReplxxImpl::move_one_word_right( char32_t ) { + if ( _pos < _data.length() ) { + while ( _pos < _data.length() && is_word_break_character( _data[_pos] ) ) { + ++_pos; + } + while ( _pos < _data.length() && !is_word_break_character( _data[_pos] ) ) { + ++_pos; + } + refresh_line(); + } + return ( Replxx::ACTION_RESULT::CONTINUE ); +} + +// meta-Backspace, kill word to left of cursor +Replxx::ACTION_RESULT Replxx::ReplxxImpl::kill_word_to_left( char32_t ) { + if ( _pos > 0 ) { + _history.reset_recall_most_recent(); + int startingPos = _pos; + while ( _pos > 0 && is_word_break_character( _data[_pos - 1] ) ) { + -- _pos; + } + while ( _pos > 0 && !is_word_break_character( _data[_pos - 1] ) ) { + -- _pos; + } + _killRing.kill( _data.get() + _pos, startingPos - _pos, false); + _data.erase( _pos, startingPos - _pos ); + refresh_line(); + } + return ( Replxx::ACTION_RESULT::CONTINUE ); +} + +// meta-D, kill word to right of cursor +Replxx::ACTION_RESULT Replxx::ReplxxImpl::kill_word_to_right( char32_t ) { + if ( _pos < _data.length() ) { + _history.reset_recall_most_recent(); + int endingPos = _pos; + while ( endingPos < _data.length() && is_word_break_character( _data[endingPos] ) ) { + ++ endingPos; + } + while ( endingPos < _data.length() && !is_word_break_character( _data[endingPos] ) ) { + ++ endingPos; + } + _killRing.kill( _data.get() + _pos, endingPos - _pos, true ); + _data.erase( _pos, endingPos - _pos ); + refresh_line(); + } + return ( Replxx::ACTION_RESULT::CONTINUE ); +} + +// ctrl-W, kill to whitespace (not word) to left of cursor +Replxx::ACTION_RESULT Replxx::ReplxxImpl::kill_to_whitespace_to_left( char32_t ) { + if ( _pos > 0 ) { + _history.reset_recall_most_recent(); + int startingPos = _pos; + while ( _pos > 0 && _data[_pos - 1] == ' ' ) { + --_pos; + } + while ( _pos > 0 && _data[_pos - 1] != ' ' ) { + -- _pos; + } + _killRing.kill( _data.get() + _pos, startingPos - _pos, false ); + _data.erase( _pos, startingPos - _pos ); + refresh_line(); + } + return ( Replxx::ACTION_RESULT::CONTINUE ); +} + +// ctrl-K, kill from cursor to end of line +Replxx::ACTION_RESULT Replxx::ReplxxImpl::kill_to_end_of_line( char32_t ) { + _killRing.kill( _data.get() + _pos, _data.length() - _pos, true ); + _data.erase( _pos, _data.length() - _pos ); + _history.reset_recall_most_recent(); + return ( Replxx::ACTION_RESULT::CONTINUE ); +} + +// ctrl-U, kill all characters to the left of the cursor +Replxx::ACTION_RESULT Replxx::ReplxxImpl::kill_to_begining_of_line( char32_t ) { + if (_pos > 0) { + _history.reset_recall_most_recent(); + _killRing.kill( _data.get(), _pos, false ); + _data.erase( 0, _pos ); + _pos = 0; + refresh_line(); + } + return ( Replxx::ACTION_RESULT::CONTINUE ); +} + +// ctrl-Y, yank killed text +Replxx::ACTION_RESULT Replxx::ReplxxImpl::yank( char32_t ) { + _history.reset_recall_most_recent(); + UnicodeString* restoredText( _killRing.yank() ); + if ( restoredText ) { + _data.insert( _pos, *restoredText, 0, restoredText->length() ); + _pos += restoredText->length(); + refresh_line(); + _killRing.lastAction = KillRing::actionYank; + _killRing.lastYankSize = restoredText->length(); + } else { + beep(); + } + return ( Replxx::ACTION_RESULT::CONTINUE ); +} + +// meta-Y, "yank-pop", rotate popped text +Replxx::ACTION_RESULT Replxx::ReplxxImpl::yank_cycle( char32_t ) { + if ( _killRing.lastAction != KillRing::actionYank ) { + beep(); + return ( Replxx::ACTION_RESULT::CONTINUE ); + } + _history.reset_recall_most_recent(); + UnicodeString* restoredText = _killRing.yankPop(); + if ( !restoredText ) { + beep(); + return ( Replxx::ACTION_RESULT::CONTINUE ); + } + _pos -= _killRing.lastYankSize; + _data.erase( _pos, _killRing.lastYankSize ); + _data.insert( _pos, *restoredText, 0, restoredText->length() ); + _pos += restoredText->length(); + _killRing.lastYankSize = restoredText->length(); + refresh_line(); + return ( Replxx::ACTION_RESULT::CONTINUE ); +} + +// meta-C, give word initial Cap +Replxx::ACTION_RESULT Replxx::ReplxxImpl::capitalize_word( char32_t ) { + _history.reset_recall_most_recent(); + if (_pos < _data.length()) { + while ( _pos < _data.length() && is_word_break_character( _data[_pos] ) ) { + ++_pos; + } + if (_pos < _data.length() && !is_word_break_character( _data[_pos] ) ) { + if ( _data[_pos] >= 'a' && _data[_pos] <= 'z' ) { + _data[_pos] += 'A' - 'a'; + } + ++_pos; + } + while (_pos < _data.length() && !is_word_break_character( _data[_pos] ) ) { + if ( _data[_pos] >= 'A' && _data[_pos] <= 'Z' ) { + _data[_pos] += 'a' - 'A'; + } + ++_pos; + } + refresh_line(); + } + return ( Replxx::ACTION_RESULT::CONTINUE ); +} + +// meta-L, lowercase word +Replxx::ACTION_RESULT Replxx::ReplxxImpl::lowercase_word( char32_t ) { + if (_pos < _data.length()) { + _history.reset_recall_most_recent(); + while ( _pos < _data.length() && is_word_break_character( _data[_pos] ) ) { + ++ _pos; + } + while (_pos < _data.length() && !is_word_break_character( _data[_pos] ) ) { + if ( _data[_pos] >= 'A' && _data[_pos] <= 'Z' ) { + _data[_pos] += 'a' - 'A'; + } + ++ _pos; + } + refresh_line(); + } + return ( Replxx::ACTION_RESULT::CONTINUE ); +} + +// meta-U, uppercase word +Replxx::ACTION_RESULT Replxx::ReplxxImpl::uppercase_word( char32_t ) { + if (_pos < _data.length()) { + _history.reset_recall_most_recent(); + while ( _pos < _data.length() && is_word_break_character( _data[_pos] ) ) { + ++ _pos; + } + while ( _pos < _data.length() && !is_word_break_character( _data[_pos] ) ) { + if ( _data[_pos] >= 'a' && _data[_pos] <= 'z') { + _data[_pos] += 'A' - 'a'; + } + ++ _pos; + } + refresh_line(); + } + return ( Replxx::ACTION_RESULT::CONTINUE ); +} + +// ctrl-T, transpose characters +Replxx::ACTION_RESULT Replxx::ReplxxImpl::transpose_characters( char32_t ) { + if ( _pos > 0 && _data.length() > 1 ) { + _history.reset_recall_most_recent(); + size_t leftCharPos = ( _pos == _data.length() ) ? _pos - 2 : _pos - 1; + char32_t aux = _data[leftCharPos]; + _data[leftCharPos] = _data[leftCharPos + 1]; + _data[leftCharPos + 1] = aux; + if ( _pos != _data.length() ) { + ++_pos; + } + refresh_line(); + } + return ( Replxx::ACTION_RESULT::CONTINUE ); +} + +// ctrl-C, abort this line +Replxx::ACTION_RESULT Replxx::ReplxxImpl::abort_line( char32_t ) { + _history.reset_recall_most_recent(); + errno = EAGAIN; + _history.drop_last(); + // we need one last refresh with the cursor at the end of the line + // so we don't display the next prompt over the previous input line + _pos = _data.length(); // pass _data.length() as _pos for EOL + refresh_line( HINT_ACTION::TRIM ); + _terminal.write8( "^C\r\n", 4 ); + return ( Replxx::ACTION_RESULT::BAIL ); +} + +// DEL, delete the character under the cursor +Replxx::ACTION_RESULT Replxx::ReplxxImpl::delete_character( char32_t ) { + if ( ( _data.length() > 0 ) && ( _pos < _data.length() ) ) { + _history.reset_recall_most_recent(); + _data.erase( _pos ); + refresh_line(); + } + return ( Replxx::ACTION_RESULT::CONTINUE ); +} + +// ctrl-D, delete the character under the cursor +// on an empty line, exit the shell +Replxx::ACTION_RESULT Replxx::ReplxxImpl::send_eof( char32_t key_ ) { + if ( _data.length() == 0 ) { + _history.drop_last(); + return ( Replxx::ACTION_RESULT::BAIL ); + } + return ( delete_character( key_ ) ); +} + +// backspace/ctrl-H, delete char to left of cursor +Replxx::ACTION_RESULT Replxx::ReplxxImpl::backspace_character( char32_t ) { + if ( _pos > 0 ) { + _history.reset_recall_most_recent(); + -- _pos; + _data.erase( _pos ); + refresh_line(); + } + return ( Replxx::ACTION_RESULT::CONTINUE ); +} + +// ctrl-J/linefeed/newline, accept line +// ctrl-M/return/enter +Replxx::ACTION_RESULT Replxx::ReplxxImpl::commit_line( char32_t ) { + // we need one last refresh with the cursor at the end of the line + // so we don't display the next prompt over the previous input line + _pos = _data.length(); // pass _data.length() as _pos for EOL + refresh_line( HINT_ACTION::TRIM ); + _history.commit_index(); + _history.drop_last(); + return ( Replxx::ACTION_RESULT::RETURN ); +} + +// ctrl-N, recall next line in history +Replxx::ACTION_RESULT Replxx::ReplxxImpl::history_next( char32_t ) { + return ( history_move( false ) ); +} + +// ctrl-P, recall previous line in history +Replxx::ACTION_RESULT Replxx::ReplxxImpl::history_previous( char32_t ) { + return ( history_move( true ) ); +} + +Replxx::ACTION_RESULT Replxx::ReplxxImpl::history_move( bool previous_ ) { + // if not already recalling, add the current line to the history list so + // we don't + // have to special case it + if ( _history.is_last() ) { + _history.update_last( _data ); + } + if ( _history.is_empty() ) { + return ( Replxx::ACTION_RESULT::CONTINUE ); + } + if ( ! _history.move( previous_ ) ) { + return ( Replxx::ACTION_RESULT::CONTINUE ); + } + _data.assign( _history.current() ); + _pos = _data.length(); + refresh_line(); + return ( Replxx::ACTION_RESULT::CONTINUE ); +} + +// meta-<, beginning of history +// Page Up, beginning of history +Replxx::ACTION_RESULT Replxx::ReplxxImpl::history_first( char32_t ) { + return ( history_jump( true ) ); +} + +// meta->, end of history +// Page Down, end of history +Replxx::ACTION_RESULT Replxx::ReplxxImpl::history_last( char32_t ) { + return ( history_jump( false ) ); +} + +Replxx::ACTION_RESULT Replxx::ReplxxImpl::history_jump( bool back_ ) { + // if not already recalling, add the current line to the history list so + // we don't + // have to special case it + if ( _history.is_last() ) { + _history.update_last( _data ); + } + if ( ! _history.is_empty() ) { + _history.jump( back_ ); + _data.assign( _history.current() ); + _pos = _data.length(); + refresh_line(); + } + return ( Replxx::ACTION_RESULT::CONTINUE ); +} + +Replxx::ACTION_RESULT Replxx::ReplxxImpl::hint_next( char32_t ) { + return ( hint_move( false ) ); +} + +Replxx::ACTION_RESULT Replxx::ReplxxImpl::hint_previous( char32_t ) { + return ( hint_move( true ) ); +} + +Replxx::ACTION_RESULT Replxx::ReplxxImpl::hint_move( bool previous_ ) { + if ( ! _noColor ) { + _killRing.lastAction = KillRing::actionOther; + if ( previous_ ) { + -- _hintSelection; + } else { + ++ _hintSelection; + } + refresh_line( HINT_ACTION::REPAINT ); + } + return ( Replxx::ACTION_RESULT::CONTINUE ); +} + +Replxx::ACTION_RESULT Replxx::ReplxxImpl::toggle_overwrite_mode( char32_t ) { + _overwrite = ! _overwrite; + return ( Replxx::ACTION_RESULT::CONTINUE ); +} + +#ifndef _WIN32 +Replxx::ACTION_RESULT Replxx::ReplxxImpl::verbatim_insert( char32_t ) { + static int const MAX_ESC_SEQ( 32 ); + char32_t buf[MAX_ESC_SEQ]; + int len( _terminal.read_verbatim( buf, MAX_ESC_SEQ ) ); + _data.insert( _pos, UnicodeString( buf, len ), 0, len ); + _pos += len; + return ( Replxx::ACTION_RESULT::CONTINUE ); +} + +// ctrl-Z, job control +Replxx::ACTION_RESULT Replxx::ReplxxImpl::suspend( char32_t ) { + _terminal.disable_raw_mode(); // Returning to Linux (whatever) shell, leave raw mode + raise(SIGSTOP); // Break out in mid-line + _terminal.enable_raw_mode(); // Back from Linux shell, re-enter raw mode + // Redraw prompt + _prompt.write(); + return ( Replxx::ACTION_RESULT::CONTINUE ); +} +#endif + +Replxx::ACTION_RESULT Replxx::ReplxxImpl::complete_line( char32_t c ) { + if ( !! _completionCallback && ( _completeOnEmpty || ( _pos > 0 ) ) ) { + _killRing.lastAction = KillRing::actionOther; + _history.reset_recall_most_recent(); + + // complete_line does the actual completion and replacement + c = do_complete_line( c != 0 ); + + if ( static_cast<int>( c ) < 0 ) { + return ( Replxx::ACTION_RESULT::BAIL ); + } + if ( c != 0 ) { + emulate_key_press( c ); + } + } else { + insert_character( c ); + } + return ( Replxx::ACTION_RESULT::CONTINUE ); +} + +Replxx::ACTION_RESULT Replxx::ReplxxImpl::complete( bool previous_ ) { + if ( _completions.empty() ) { + bool first( _completions.empty() ); + complete_line( first ? '\t' : 0 ); + if ( first ) { + return ( Replxx::ACTION_RESULT::CONTINUE ); + } + } + int newSelection( _completionSelection + ( previous_ ? -1 : 1 ) ); + if ( newSelection >= static_cast<int>( _completions.size() ) ) { + newSelection = -1; + } else if ( newSelection == -2 ) { + newSelection = static_cast<int>( _completions.size() ) - 1; + } + if ( _completionSelection != -1 ) { + int oldCompletionLength( _completions[_completionSelection].text().length() - _completionContextLength ); + _pos -= oldCompletionLength; + _data.erase( _pos, oldCompletionLength ); + } + if ( newSelection != -1 ) { + int newCompletionLength( _completions[newSelection].text().length() - _completionContextLength ); + _data.insert( _pos, _completions[newSelection].text(), _completionContextLength, newCompletionLength ); + _pos += newCompletionLength; + } + _completionSelection = newSelection; + refresh_line(); // Refresh the line + return ( Replxx::ACTION_RESULT::CONTINUE ); +} + +Replxx::ACTION_RESULT Replxx::ReplxxImpl::complete_next( char32_t ) { + return ( complete( false ) ); +} + +Replxx::ACTION_RESULT Replxx::ReplxxImpl::complete_previous( char32_t ) { + return ( complete( true ) ); +} + +// Alt-P, reverse history search for prefix +// Alt-P, reverse history search for prefix +// Alt-N, forward history search for prefix +// Alt-N, forward history search for prefix +Replxx::ACTION_RESULT Replxx::ReplxxImpl::common_prefix_search( char32_t startChar ) { + int prefixSize( calculate_displayed_length( _data.get(), _prefix ) ); + if ( + _history.common_prefix_search( + _data, prefixSize, ( startChar == ( Replxx::KEY::meta( 'p' ) ) ) || ( startChar == ( Replxx::KEY::meta( 'P' ) ) ) + ) + ) { + _data.assign( _history.current() ); + _pos = _data.length(); + refresh_line(); + } + return ( Replxx::ACTION_RESULT::CONTINUE ); +} + +// ctrl-R, reverse history search +// ctrl-S, forward history search +/** + * Incremental history search -- take over the prompt and keyboard as the user + * types a search string, deletes characters from it, changes _direction, + * and either accepts the found line (for execution orediting) or cancels. + * @param startChar - the character that began the search, used to set the initial + * _direction + */ +Replxx::ACTION_RESULT Replxx::ReplxxImpl::incremental_history_search( char32_t startChar ) { + // if not already recalling, add the current line to the history list so we + // don't have to special case it + if ( _history.is_last() ) { + _history.update_last( _data ); + } + int historyLinePosition( _pos ); + clear_self_to_end_of_screen(); + + DynamicPrompt dp( _terminal, (startChar == Replxx::KEY::control('R')) ? -1 : 1 ); + + dp._previousLen = _prompt._previousLen; + dp._previousInputLen = _prompt._previousInputLen; + // draw user's text with our prompt + dynamicRefresh(dp, _data.get(), _data.length(), historyLinePosition); + + // loop until we get an exit character + char32_t c( 0 ); + bool keepLooping = true; + bool useSearchedLine = true; + bool searchAgain = false; + UnicodeString activeHistoryLine; + while ( keepLooping ) { + c = read_char(); + + switch (c) { + // these characters keep the selected text but do not execute it + case Replxx::KEY::control('A'): // ctrl-A, move cursor to start of line + case Replxx::KEY::HOME: + case Replxx::KEY::control('B'): // ctrl-B, move cursor left by one character + case Replxx::KEY::LEFT: + case Replxx::KEY::meta( 'b' ): // meta-B, move cursor left by one word + case Replxx::KEY::meta( 'B' ): + case Replxx::KEY::control( Replxx::KEY::LEFT ): + case Replxx::KEY::meta( Replxx::KEY::LEFT ): // Emacs allows Meta, bash & readline don't + case Replxx::KEY::control('D'): + case Replxx::KEY::meta( 'd' ): // meta-D, kill word to right of cursor + case Replxx::KEY::meta( 'D' ): + case Replxx::KEY::control('E'): // ctrl-E, move cursor to end of line + case Replxx::KEY::END: + case Replxx::KEY::control('F'): // ctrl-F, move cursor right by one character + case Replxx::KEY::RIGHT: + case Replxx::KEY::meta( 'f' ): // meta-F, move cursor right by one word + case Replxx::KEY::meta( 'F' ): + case Replxx::KEY::control( Replxx::KEY::RIGHT ): + case Replxx::KEY::meta( Replxx::KEY::RIGHT ): // Emacs allows Meta, bash & readline don't + case Replxx::KEY::meta( Replxx::KEY::BACKSPACE ): + case Replxx::KEY::control('J'): + case Replxx::KEY::control('K'): // ctrl-K, kill from cursor to end of line + case Replxx::KEY::ENTER: + case Replxx::KEY::control('N'): // ctrl-N, recall next line in history + case Replxx::KEY::control('P'): // ctrl-P, recall previous line in history + case Replxx::KEY::DOWN: + case Replxx::KEY::UP: + case Replxx::KEY::control('T'): // ctrl-T, transpose characters + case Replxx::KEY::control('U'): // ctrl-U, kill all characters to the left of the cursor + case Replxx::KEY::control('W'): + case Replxx::KEY::meta( 'y' ): // meta-Y, "yank-pop", rotate popped text + case Replxx::KEY::meta( 'Y' ): + case 127: + case Replxx::KEY::DELETE: + case Replxx::KEY::meta( '<' ): // start of history + case Replxx::KEY::PAGE_UP: + case Replxx::KEY::meta( '>' ): // end of history + case Replxx::KEY::PAGE_DOWN: + keepLooping = false; + break; + + // these characters revert the input line to its previous state + case Replxx::KEY::control('C'): // ctrl-C, abort this line + case Replxx::KEY::control('G'): + case Replxx::KEY::control('L'): // ctrl-L, clear screen and redisplay line + keepLooping = false; + useSearchedLine = false; + if (c != Replxx::KEY::control('L')) { + c = -1; // ctrl-C and ctrl-G just abort the search and do nothing else + } + break; + + // these characters stay in search mode and assign the display + case Replxx::KEY::control('S'): + case Replxx::KEY::control('R'): + if ( dp._searchText.length() == 0 ) { // if no current search text, recall previous text + if ( previousSearchText.length() > 0 ) { + dp._searchText = previousSearchText; + } + } + if ((dp._direction == 1 && c == Replxx::KEY::control('R')) || + (dp._direction == -1 && c == Replxx::KEY::control('S'))) { + dp._direction = 0 - dp._direction; // reverse _direction + dp.updateSearchPrompt(); // change the prompt + } else { + searchAgain = true; // same _direction, search again + } + break; + +// job control is its own thing +#ifndef _WIN32 + case Replxx::KEY::control('Z'): { // ctrl-Z, job control + _terminal.disable_raw_mode(); // Returning to Linux (whatever) shell, leave raw mode + raise(SIGSTOP); // Break out in mid-line + _terminal.enable_raw_mode(); // Back from Linux shell, re-enter raw mode + dynamicRefresh(dp, activeHistoryLine.get(), activeHistoryLine.length(), historyLinePosition); + continue; + } break; +#endif + + // these characters assign the search string, and hence the selected input + // line + case Replxx::KEY::BACKSPACE: // backspace/ctrl-H, delete char to left of cursor + if ( dp._searchText.length() > 0 ) { + dp._searchText.erase( dp._searchText.length() - 1 ); + dp.updateSearchPrompt(); + _history.reset_pos( dp._direction == -1 ? _history.size() - 1 : 0 ); + } else { + beep(); + } + break; + + case Replxx::KEY::control('Y'): // ctrl-Y, yank killed text + break; + + default: { + if ( ! is_control_code( c ) && ( c < static_cast<int>( Replxx::KEY::BASE ) ) ) { // not an action character + dp._searchText.insert( dp._searchText.length(), c ); + dp.updateSearchPrompt(); + } else { + beep(); + } + } + } // switch + + // if we are staying in search mode, search now + if ( ! keepLooping ) { + break; + } + activeHistoryLine.assign( _history.current() ); + if ( dp._searchText.length() > 0 ) { + bool found = false; + int historySearchIndex = _history.current_pos(); + int lineSearchPos = historyLinePosition; + if ( searchAgain ) { + lineSearchPos += dp._direction; + } + searchAgain = false; + while ( true ) { + while ( ( ( lineSearchPos + dp._searchText.length() ) <= activeHistoryLine.length() ) && ( lineSearchPos >= 0 ) ) { + if ( std::equal( dp._searchText.begin(), dp._searchText.end(), activeHistoryLine.begin() + lineSearchPos ) ) { + found = true; + break; + } + lineSearchPos += dp._direction; + } + if ( found ) { + _history.reset_pos( historySearchIndex ); + historyLinePosition = lineSearchPos; + break; + } else if ( ( dp._direction > 0 ) ? ( historySearchIndex < _history.size() ) : ( historySearchIndex > 0 ) ) { + historySearchIndex += dp._direction; + activeHistoryLine.assign( _history[historySearchIndex] ); + lineSearchPos = ( dp._direction > 0 ) ? 0 : ( activeHistoryLine.length() - dp._searchText.length() ); + } else { + beep(); + break; + } + } // while + } + activeHistoryLine.assign( _history.current() ); + dynamicRefresh(dp, activeHistoryLine.get(), activeHistoryLine.length(), historyLinePosition); // draw user's text with our prompt + } // while + + // leaving history search, restore previous prompt, maybe make searched line + // current + Prompt pb( _terminal ); + pb._characterCount = _prompt._indentation; + pb._byteCount = _prompt._byteCount; + UnicodeString tempUnicode( &_prompt._text[_prompt._lastLinePosition], pb._byteCount - _prompt._lastLinePosition ); + pb._text = tempUnicode; + pb._extraLines = 0; + pb._indentation = _prompt._indentation; + pb._lastLinePosition = 0; + pb._previousInputLen = activeHistoryLine.length(); + pb._cursorRowOffset = dp._cursorRowOffset; + pb.update_screen_columns(); + pb._previousLen = dp._characterCount; + if ( useSearchedLine && ( activeHistoryLine.length() > 0 ) ) { + _history.set_recall_most_recent(); + _data.assign( activeHistoryLine ); + _pos = historyLinePosition; + } + dynamicRefresh(pb, _data.get(), _data.length(), _pos); // redraw the original prompt with current input + _prompt._previousInputLen = _data.length(); + _prompt._cursorRowOffset = _prompt._extraLines + pb._cursorRowOffset; + previousSearchText = dp._searchText; // save search text for possible reuse on ctrl-R ctrl-R + emulate_key_press( c ); // pass a character or -1 back to main loop + return ( Replxx::ACTION_RESULT::CONTINUE ); +} + +// ctrl-L, clear screen and redisplay line +Replxx::ACTION_RESULT Replxx::ReplxxImpl::clear_screen( char32_t c ) { + _terminal.clear_screen( Terminal::CLEAR_SCREEN::WHOLE ); + if ( c ) { + _prompt.write(); +#ifndef _WIN32 + // we have to generate our own newline on line wrap on Linux + if (_prompt._indentation == 0 && _prompt._extraLines > 0) { + _terminal.write8( "\n", 1 ); + } +#endif + _prompt._cursorRowOffset = _prompt._extraLines; + refresh_line(); + } + return ( Replxx::ACTION_RESULT::CONTINUE ); +} + +bool Replxx::ReplxxImpl::is_word_break_character( char32_t char_ ) const { + bool wbc( false ); + if ( char_ < 128 ) { + wbc = strchr( _breakChars, static_cast<char>( char_ ) ) != nullptr; + } + return ( wbc ); +} + +void Replxx::ReplxxImpl::history_add( std::string const& line ) { + _history.add( UnicodeString( line ) ); +} + +int Replxx::ReplxxImpl::history_save( std::string const& filename ) { + return ( _history.save( filename ) ); +} + +int Replxx::ReplxxImpl::history_load( std::string const& filename ) { + return ( _history.load( filename ) ); +} + +int Replxx::ReplxxImpl::history_size( void ) const { + return ( _history.size() ); +} + +std::string Replxx::ReplxxImpl::history_line( int index ) { + _utf8Buffer.assign( _history[index] ); + return ( _utf8Buffer.get() ); +} + +void Replxx::ReplxxImpl::set_completion_callback( Replxx::completion_callback_t const& fn ) { + _completionCallback = fn; +} + +void Replxx::ReplxxImpl::set_highlighter_callback( Replxx::highlighter_callback_t const& fn ) { + _highlighterCallback = fn; +} + +void Replxx::ReplxxImpl::set_hint_callback( Replxx::hint_callback_t const& fn ) { + _hintCallback = fn; +} + +void Replxx::ReplxxImpl::set_max_history_size( int len ) { + _history.set_max_size( len ); +} + +void Replxx::ReplxxImpl::set_completion_count_cutoff( int count ) { + _completionCountCutoff = count; +} + +void Replxx::ReplxxImpl::set_max_hint_rows( int count ) { + _maxHintRows = count; +} + +void Replxx::ReplxxImpl::set_hint_delay( int hintDelay_ ) { + _hintDelay = hintDelay_; +} + +void Replxx::ReplxxImpl::set_word_break_characters( char const* wordBreakers ) { + _breakChars = wordBreakers; +} + +void Replxx::ReplxxImpl::set_double_tab_completion( bool val ) { + _doubleTabCompletion = val; +} + +void Replxx::ReplxxImpl::set_complete_on_empty( bool val ) { + _completeOnEmpty = val; +} + +void Replxx::ReplxxImpl::set_beep_on_ambiguous_completion( bool val ) { + _beepOnAmbiguousCompletion = val; +} + +void Replxx::ReplxxImpl::set_no_color( bool val ) { + _noColor = val; +} + +/** + * Display the dynamic incremental search prompt and the current user input + * line. + * @param pi Prompt struct holding information about the prompt and our + * screen position + * @param buf32 input buffer to be displayed + * @param len count of characters in the buffer + * @param pos current cursor position within the buffer (0 <= pos <= len) + */ +void Replxx::ReplxxImpl::dynamicRefresh(Prompt& pi, char32_t* buf32, int len, int pos) { + clear_self_to_end_of_screen(); + // calculate the position of the end of the prompt + int xEndOfPrompt, yEndOfPrompt; + calculate_screen_position( + 0, 0, pi.screen_columns(), pi._characterCount, + xEndOfPrompt, yEndOfPrompt + ); + pi._indentation = xEndOfPrompt; + + // calculate the position of the end of the input line + int xEndOfInput, yEndOfInput; + calculate_screen_position( + xEndOfPrompt, yEndOfPrompt, pi.screen_columns(), + calculate_displayed_length(buf32, len), xEndOfInput, + yEndOfInput + ); + + // calculate the desired position of the cursor + int xCursorPos, yCursorPos; + calculate_screen_position( + xEndOfPrompt, yEndOfPrompt, pi.screen_columns(), + calculate_displayed_length(buf32, pos), xCursorPos, + yCursorPos + ); + + pi._previousLen = pi._indentation; + pi._previousInputLen = len; + + // display the prompt + pi.write(); + + // display the input line + _terminal.write32( buf32, len ); + +#ifndef _WIN32 + // we have to generate our own newline on line wrap + if (xEndOfInput == 0 && yEndOfInput > 0) { + _terminal.write8( "\n", 1 ); + } +#endif + // position the cursor + _terminal.jump_cursor( + xCursorPos, // 0-based on Win32 + -( yEndOfInput - yCursorPos ) + ); + pi._cursorRowOffset = pi._extraLines + yCursorPos; // remember row for next pass +} + +} + diff --git a/contrib/replxx/src/replxx_impl.hxx b/contrib/replxx/src/replxx_impl.hxx new file mode 100644 index 000000000..3cf1e8203 --- /dev/null +++ b/contrib/replxx/src/replxx_impl.hxx @@ -0,0 +1,243 @@ +/* + * Copyright (c) 2017-2018, Marcin Konarski (amok at codestation.org) + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Redis nor the names of its contributors may be used + * to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef HAVE_REPLXX_REPLXX_IMPL_HXX_INCLUDED +#define HAVE_REPLXX_REPLXX_IMPL_HXX_INCLUDED 1 + +#include <vector> +#include <deque> +#include <memory> +#include <string> +#include <unordered_map> +#include <thread> +#include <mutex> + +#include "replxx.hxx" +#include "history.hxx" +#include "killring.hxx" +#include "utf8string.hxx" +#include "prompt.hxx" +#include "io.hxx" + +namespace replxx { + +class Replxx::ReplxxImpl { +public: + class Completion { + UnicodeString _text; + Replxx::Color _color; + public: + Completion( UnicodeString const& text_, Replxx::Color color_ ) + : _text( text_ ) + , _color( color_ ) { + } + Completion( Replxx::Completion const& completion_ ) + : _text( completion_.text() ) + , _color( completion_.color() ) { + } + Completion( Completion const& ) = default; + Completion& operator = ( Completion const& ) = default; + Completion( Completion&& ) = default; + Completion& operator = ( Completion&& ) = default; + UnicodeString const& text( void ) const { + return ( _text ); + } + Replxx::Color color( void ) const { + return ( _color ); + } + }; + typedef std::vector<Completion> completions_t; + typedef std::vector<UnicodeString> hints_t; + typedef std::unique_ptr<char[]> utf8_buffer_t; + typedef std::unique_ptr<char32_t[]> input_buffer_t; + typedef std::vector<char> char_widths_t; + typedef std::vector<char32_t> display_t; + typedef std::deque<char32_t> key_presses_t; + typedef std::deque<std::string> messages_t; + enum class HINT_ACTION { + REGENERATE, + REPAINT, + TRIM, + SKIP + }; + typedef Replxx::ACTION_RESULT ( ReplxxImpl::* key_press_handler_raw_t )( char32_t ); + typedef std::unordered_map<int, Replxx::key_press_handler_t> key_press_handlers_t; +private: + typedef int long long unsigned action_trait_t; + static action_trait_t const NOOP = 0; + static action_trait_t const WANT_REFRESH = 1; + static action_trait_t const RESET_KILL_ACTION = 2; + static action_trait_t const SET_KILL_ACTION = 4; + static action_trait_t const DONT_RESET_PREFIX = 8; + static action_trait_t const DONT_RESET_COMPLETIONS = 16; +private: + mutable Utf8String _utf8Buffer; + UnicodeString _data; + char_widths_t _charWidths; // character widths from mk_wcwidth() + display_t _display; + int _displayInputLength; + UnicodeString _hint; + int _pos; // character position in buffer ( 0 <= _pos <= _len ) + int _prefix; // prefix length used in common prefix search + int _hintSelection; // Currently selected hint. + History _history; + KillRing _killRing; + int _maxHintRows; + int _hintDelay; + char const* _breakChars; + int _completionCountCutoff; + bool _overwrite; + bool _doubleTabCompletion; + bool _completeOnEmpty; + bool _beepOnAmbiguousCompletion; + bool _noColor; + key_press_handlers_t _keyPressHandlers; + Terminal _terminal; + std::thread::id _currentThread; + Prompt _prompt; + Replxx::completion_callback_t _completionCallback; + Replxx::highlighter_callback_t _highlighterCallback; + Replxx::hint_callback_t _hintCallback; + key_presses_t _keyPresses; + messages_t _messages; + completions_t _completions; + int _completionContextLength; + int _completionSelection; + std::string _preloadedBuffer; // used with set_preload_buffer + std::string _errorMessage; + bool _modifiedState; + mutable std::mutex _mutex; +public: + ReplxxImpl( FILE*, FILE*, FILE* ); + void set_completion_callback( Replxx::completion_callback_t const& fn ); + void set_highlighter_callback( Replxx::highlighter_callback_t const& fn ); + void set_hint_callback( Replxx::hint_callback_t const& fn ); + char const* input( std::string const& prompt ); + void history_add( std::string const& line ); + int history_save( std::string const& filename ); + int history_load( std::string const& filename ); + std::string history_line( int index ); + int history_size( void ) const; + void set_preload_buffer(std::string const& preloadText); + void set_word_break_characters( char const* wordBreakers ); + void set_max_hint_rows( int count ); + void set_hint_delay( int milliseconds ); + void set_double_tab_completion( bool val ); + void set_complete_on_empty( bool val ); + void set_beep_on_ambiguous_completion( bool val ); + void set_no_color( bool val ); + void set_max_history_size( int len ); + void set_completion_count_cutoff( int len ); + int install_window_change_handler( void ); + completions_t call_completer( std::string const& input, int& ) const; + hints_t call_hinter( std::string const& input, int&, Replxx::Color& color ) const; + void print( char const*, int ); + Replxx::ACTION_RESULT clear_screen( char32_t ); + void emulate_key_press( char32_t ); + Replxx::ACTION_RESULT invoke( Replxx::ACTION, char32_t ); + void bind_key( char32_t, Replxx::key_press_handler_t ); + Replxx::State get_state( void ) const; + void set_state( Replxx::State const& ); +private: + ReplxxImpl( ReplxxImpl const& ) = delete; + ReplxxImpl& operator = ( ReplxxImpl const& ) = delete; +private: + void preload_puffer( char const* preloadText ); + int get_input_line( void ); + Replxx::ACTION_RESULT action( action_trait_t, key_press_handler_raw_t const&, char32_t ); + Replxx::ACTION_RESULT insert_character( char32_t ); + Replxx::ACTION_RESULT go_to_begining_of_line( char32_t ); + Replxx::ACTION_RESULT go_to_end_of_line( char32_t ); + Replxx::ACTION_RESULT move_one_char_left( char32_t ); + Replxx::ACTION_RESULT move_one_char_right( char32_t ); + Replxx::ACTION_RESULT move_one_word_left( char32_t ); + Replxx::ACTION_RESULT move_one_word_right( char32_t ); + Replxx::ACTION_RESULT kill_word_to_left( char32_t ); + Replxx::ACTION_RESULT kill_word_to_right( char32_t ); + Replxx::ACTION_RESULT kill_to_whitespace_to_left( char32_t ); + Replxx::ACTION_RESULT kill_to_begining_of_line( char32_t ); + Replxx::ACTION_RESULT kill_to_end_of_line( char32_t ); + Replxx::ACTION_RESULT yank( char32_t ); + Replxx::ACTION_RESULT yank_cycle( char32_t ); + Replxx::ACTION_RESULT capitalize_word( char32_t ); + Replxx::ACTION_RESULT lowercase_word( char32_t ); + Replxx::ACTION_RESULT uppercase_word( char32_t ); + Replxx::ACTION_RESULT transpose_characters( char32_t ); + Replxx::ACTION_RESULT abort_line( char32_t ); + Replxx::ACTION_RESULT send_eof( char32_t ); + Replxx::ACTION_RESULT delete_character( char32_t ); + Replxx::ACTION_RESULT backspace_character( char32_t ); + Replxx::ACTION_RESULT commit_line( char32_t ); + Replxx::ACTION_RESULT history_next( char32_t ); + Replxx::ACTION_RESULT history_previous( char32_t ); + Replxx::ACTION_RESULT history_move( bool ); + Replxx::ACTION_RESULT history_first( char32_t ); + Replxx::ACTION_RESULT history_last( char32_t ); + Replxx::ACTION_RESULT history_jump( bool ); + Replxx::ACTION_RESULT hint_next( char32_t ); + Replxx::ACTION_RESULT hint_previous( char32_t ); + Replxx::ACTION_RESULT hint_move( bool ); + Replxx::ACTION_RESULT toggle_overwrite_mode( char32_t ); +#ifndef _WIN32 + Replxx::ACTION_RESULT verbatim_insert( char32_t ); + Replxx::ACTION_RESULT suspend( char32_t ); +#endif + Replxx::ACTION_RESULT complete_line( char32_t ); + Replxx::ACTION_RESULT complete_next( char32_t ); + Replxx::ACTION_RESULT complete_previous( char32_t ); + Replxx::ACTION_RESULT complete( bool ); + Replxx::ACTION_RESULT incremental_history_search( char32_t startChar ); + Replxx::ACTION_RESULT common_prefix_search( char32_t startChar ); + char32_t read_char( HINT_ACTION = HINT_ACTION::SKIP ); + char const* read_from_stdin( void ); + char32_t do_complete_line( bool ); + void refresh_line( HINT_ACTION = HINT_ACTION::REGENERATE ); + void render( char32_t ); + void render( HINT_ACTION ); + int handle_hints( HINT_ACTION ); + void set_color( Replxx::Color ); + int context_length( void ); + void clear( void ); + void repaint( void ); + bool is_word_break_character( char32_t ) const; + void dynamicRefresh(Prompt& pi, char32_t* buf32, int len, int pos); + char const* finalize_input( char const* ); + void clear_self_to_end_of_screen( void ); + typedef struct { + int index; + bool error; + } paren_info_t; + paren_info_t matching_paren( void ); +}; + +} + +#endif + diff --git a/contrib/replxx/src/unicodestring.hxx b/contrib/replxx/src/unicodestring.hxx new file mode 100644 index 000000000..53a7372c6 --- /dev/null +++ b/contrib/replxx/src/unicodestring.hxx @@ -0,0 +1,179 @@ +#ifndef REPLXX_UNICODESTRING_HXX_INCLUDED +#define REPLXX_UNICODESTRING_HXX_INCLUDED + +#include <vector> +#include <cstring> + +#include "conversion.hxx" + +namespace replxx { + +class UnicodeString { +public: + typedef std::vector<char32_t> data_buffer_t; + typedef data_buffer_t::const_iterator const_iterator; + typedef data_buffer_t::iterator iterator; +private: + data_buffer_t _data; +public: + UnicodeString() + : _data() { + } + + explicit UnicodeString( std::string const& src ) + : _data() { + assign( src ); + } + + explicit UnicodeString( char const* src ) + : _data() { + assign( src ); + } + + explicit UnicodeString( char8_t const* src ) + : UnicodeString( reinterpret_cast<const char*>( src ) ) { + } + + explicit UnicodeString( char32_t const* src ) + : _data() { + int len( 0 ); + while ( src[len] != 0 ) { + ++ len; + } + _data.assign( src, src + len ); + } + + explicit UnicodeString( char32_t const* src, int len ) + : _data() { + _data.assign( src, src + len ); + } + + explicit UnicodeString( int len ) + : _data() { + _data.resize( len ); + } + + UnicodeString& assign( std::string const& str_ ) { + _data.resize( str_.length() ); + int len( 0 ); + copyString8to32( _data.data(), str_.length(), len, str_.c_str() ); + _data.resize( len ); + return *this; + } + + UnicodeString& assign( char const* str_ ) { + size_t byteCount( strlen( str_ ) ); + _data.resize( byteCount ); + int len( 0 ); + copyString8to32( _data.data(), byteCount, len, str_ ); + _data.resize( len ); + return *this; + } + + UnicodeString& assign( UnicodeString const& other_ ) { + _data = other_._data; + return *this; + } + + explicit UnicodeString( UnicodeString const& ) = default; + UnicodeString& operator = ( UnicodeString const& ) = default; + UnicodeString( UnicodeString&& ) = default; + UnicodeString& operator = ( UnicodeString&& ) = default; + bool operator == ( UnicodeString const& other_ ) const { + return ( _data == other_._data ); + } + + bool operator != ( UnicodeString const& other_ ) const { + return ( _data != other_._data ); + } + + UnicodeString& append( UnicodeString const& other ) { + _data.insert( _data.end(), other._data.begin(), other._data.end() ); + return *this; + } + + UnicodeString& append( char32_t const* src, int len ) { + _data.insert( _data.end(), src, src + len ); + return *this; + } + + UnicodeString& insert( int pos_, UnicodeString const& str_, int offset_, int len_ ) { + _data.insert( _data.begin() + pos_, str_._data.begin() + offset_, str_._data.begin() + offset_ + len_ ); + return *this; + } + + UnicodeString& insert( int pos_, char32_t c_ ) { + _data.insert( _data.begin() + pos_, c_ ); + return *this; + } + + UnicodeString& erase( int pos_ ) { + _data.erase( _data.begin() + pos_ ); + return *this; + } + + UnicodeString& erase( int pos_, int len_ ) { + _data.erase( _data.begin() + pos_, _data.begin() + pos_ + len_ ); + return *this; + } + + char32_t const* get() const { + return _data.data(); + } + + char32_t* get() { + return _data.data(); + } + + int length() const { + return static_cast<int>( _data.size() ); + } + + void clear( void ) { + _data.clear(); + } + + const char32_t& operator[]( size_t pos ) const { + return _data[pos]; + } + + char32_t& operator[]( size_t pos ) { + return _data[pos]; + } + + bool starts_with( data_buffer_t::const_iterator first_, data_buffer_t::const_iterator last_ ) const { + return ( + ( std::distance( first_, last_ ) <= length() ) + && ( std::equal( first_, last_, _data.begin() ) ) + ); + } + + bool is_empty( void ) const { + return ( _data.size() == 0 ); + } + + void swap( UnicodeString& other_ ) { + _data.swap( other_._data ); + } + + const_iterator begin( void ) const { + return ( _data.begin() ); + } + + const_iterator end( void ) const { + return ( _data.end() ); + } + + iterator begin( void ) { + return ( _data.begin() ); + } + + iterator end( void ) { + return ( _data.end() ); + } +}; + +} + +#endif + diff --git a/contrib/replxx/src/utf8string.hxx b/contrib/replxx/src/utf8string.hxx new file mode 100644 index 000000000..3adf17a34 --- /dev/null +++ b/contrib/replxx/src/utf8string.hxx @@ -0,0 +1,71 @@ +#ifndef REPLXX_UTF8STRING_HXX_INCLUDED +#define REPLXX_UTF8STRING_HXX_INCLUDED + +#include <memory> + +#include "unicodestring.hxx" + +namespace replxx { + +class Utf8String { +private: + typedef std::unique_ptr<char[]> buffer_t; + buffer_t _data; + int _bufSize; +public: + Utf8String( void ) + : _data() + , _bufSize( 0 ) { + } + explicit Utf8String( UnicodeString const& src ) + : _data() + , _bufSize( 0 ) { + assign( src, src.length() ); + } + + Utf8String( UnicodeString const& src_, int len_ ) + : _data() + , _bufSize( 0 ) { + assign( src_, len_ ); + } + + void assign( UnicodeString const& str_ ) { + assign( str_, str_.length() ); + } + + void assign( UnicodeString const& str_, int len_ ) { + int len( len_ * 4 ); + realloc( len ); + copyString32to8( _data.get(), len, str_.get(), len_ ); + } + + void assign( std::string const& str_ ) { + realloc( str_.length() ); + strncpy( _data.get(), str_.c_str(), str_.length() ); + } + + char const* get() const { + return _data.get(); + } + +private: + void realloc( int reqLen ) { + if ( ( reqLen + 1 ) > _bufSize ) { + _bufSize = 1; + while ( ( reqLen + 1 ) > _bufSize ) { + _bufSize *= 2; + } + _data.reset( new char[_bufSize] ); + memset( _data.get(), 0, _bufSize ); + } + _data[reqLen] = 0; + return; + } + Utf8String(const Utf8String&) = delete; + Utf8String& operator=(const Utf8String&) = delete; +}; + +} + +#endif + diff --git a/contrib/replxx/src/util.cxx b/contrib/replxx/src/util.cxx new file mode 100644 index 000000000..9beb96b80 --- /dev/null +++ b/contrib/replxx/src/util.cxx @@ -0,0 +1,152 @@ +#include <cstdlib> +#include <cstring> +#include <wctype.h> + +#include "util.hxx" + +namespace replxx { + +int mk_wcwidth( char32_t ); + +/** + * Recompute widths of all characters in a char32_t buffer + * @param text - input buffer of Unicode characters + * @param widths - output buffer of character widths + * @param charCount - number of characters in buffer + */ +void recompute_character_widths( char32_t const* text, char* widths, int charCount ) { + for (int i = 0; i < charCount; ++i) { + widths[i] = mk_wcwidth(text[i]); + } +} + +/** + * Calculate a new screen position given a starting position, screen width and + * character count + * @param x - initial x position (zero-based) + * @param y - initial y position (zero-based) + * @param screenColumns - screen column count + * @param charCount - character positions to advance + * @param xOut - returned x position (zero-based) + * @param yOut - returned y position (zero-based) + */ +void calculate_screen_position( + int x, int y, int screenColumns, + int charCount, int& xOut, int& yOut +) { + xOut = x; + yOut = y; + int charsRemaining = charCount; + while ( charsRemaining > 0 ) { + int charsThisRow = ( ( x + charsRemaining ) < screenColumns ) + ? charsRemaining + : screenColumns - x; + xOut = x + charsThisRow; + yOut = y; + charsRemaining -= charsThisRow; + x = 0; + ++ y; + } + if ( xOut == screenColumns ) { // we have to special-case line wrap + xOut = 0; + ++ yOut; + } +} + +/** + * Calculate a column width using mk_wcswidth() + * @param buf32 - text to calculate + * @param len - length of text to calculate + */ +int calculate_displayed_length( char32_t const* buf32_, int size_ ) { + int len( 0 ); + for ( int i( 0 ); i < size_; ++ i ) { + char32_t c( buf32_[i] ); + if ( c == '\033' ) { + int escStart( i ); + ++ i; + if ( ( i < size_ ) && ( buf32_[i] != '[' ) ) { + i = escStart; + ++ len; + continue; + } + ++ i; + for ( ; i < size_; ++ i ) { + c = buf32_[i]; + if ( ( c != ';' ) && ( ( c < '0' ) || ( c > '9' ) ) ) { + break; + } + } + if ( ( i < size_ ) && ( buf32_[i] == 'm' ) ) { + continue; + } + i = escStart; + len += 2; + } else if ( is_control_code( c ) ) { + len += 2; + } else { + int wcw( mk_wcwidth( c ) ); + if ( wcw < 0 ) { + len = -1; + break; + } + len += wcw; + } + } + return ( len ); +} + +char const* ansi_color( Replxx::Color color_ ) { + static char const reset[] = "\033[0m"; + static char const black[] = "\033[0;22;30m"; + static char const red[] = "\033[0;22;31m"; + static char const green[] = "\033[0;22;32m"; + static char const brown[] = "\033[0;22;33m"; + static char const blue[] = "\033[0;22;34m"; + static char const magenta[] = "\033[0;22;35m"; + static char const cyan[] = "\033[0;22;36m"; + static char const lightgray[] = "\033[0;22;37m"; + +#ifdef _WIN32 + static bool const has256colorDefault( true ); +#else + static bool const has256colorDefault( false ); +#endif + static char const* TERM( getenv( "TERM" ) ); + static bool const has256color( TERM ? ( strstr( TERM, "256" ) != nullptr ) : has256colorDefault ); + static char const* gray = has256color ? "\033[0;1;90m" : "\033[0;1;30m"; + static char const* brightred = has256color ? "\033[0;1;91m" : "\033[0;1;31m"; + static char const* brightgreen = has256color ? "\033[0;1;92m" : "\033[0;1;32m"; + static char const* yellow = has256color ? "\033[0;1;93m" : "\033[0;1;33m"; + static char const* brightblue = has256color ? "\033[0;1;94m" : "\033[0;1;34m"; + static char const* brightmagenta = has256color ? "\033[0;1;95m" : "\033[0;1;35m"; + static char const* brightcyan = has256color ? "\033[0;1;96m" : "\033[0;1;36m"; + static char const* white = has256color ? "\033[0;1;97m" : "\033[0;1;37m"; + static char const error[] = "\033[101;1;33m"; + + char const* code( reset ); + switch ( color_ ) { + case Replxx::Color::BLACK: code = black; break; + case Replxx::Color::RED: code = red; break; + case Replxx::Color::GREEN: code = green; break; + case Replxx::Color::BROWN: code = brown; break; + case Replxx::Color::BLUE: code = blue; break; + case Replxx::Color::MAGENTA: code = magenta; break; + case Replxx::Color::CYAN: code = cyan; break; + case Replxx::Color::LIGHTGRAY: code = lightgray; break; + case Replxx::Color::GRAY: code = gray; break; + case Replxx::Color::BRIGHTRED: code = brightred; break; + case Replxx::Color::BRIGHTGREEN: code = brightgreen; break; + case Replxx::Color::YELLOW: code = yellow; break; + case Replxx::Color::BRIGHTBLUE: code = brightblue; break; + case Replxx::Color::BRIGHTMAGENTA: code = brightmagenta; break; + case Replxx::Color::BRIGHTCYAN: code = brightcyan; break; + case Replxx::Color::WHITE: code = white; break; + case Replxx::Color::ERROR: code = error; break; + case Replxx::Color::DEFAULT: code = reset; break; + } + return ( code ); +} + +} + diff --git a/contrib/replxx/src/util.hxx b/contrib/replxx/src/util.hxx new file mode 100644 index 000000000..8afa0fa96 --- /dev/null +++ b/contrib/replxx/src/util.hxx @@ -0,0 +1,21 @@ +#ifndef REPLXX_UTIL_HXX_INCLUDED +#define REPLXX_UTIL_HXX_INCLUDED 1 + +#include "replxx.hxx" + +namespace replxx { + +inline bool is_control_code(char32_t testChar) { + return (testChar < ' ') || // C0 controls + (testChar >= 0x7F && testChar <= 0x9F); // DEL and C1 controls +} + +void recompute_character_widths( char32_t const* text, char* widths, int charCount ); +void calculate_screen_position( int x, int y, int screenColumns, int charCount, int& xOut, int& yOut ); +int calculate_displayed_length( char32_t const* buf32, int size ); +char const* ansi_color( Replxx::Color ); + +} + +#endif + diff --git a/contrib/replxx/src/wcwidth.cpp b/contrib/replxx/src/wcwidth.cpp new file mode 100644 index 000000000..c6c05fad6 --- /dev/null +++ b/contrib/replxx/src/wcwidth.cpp @@ -0,0 +1,296 @@ +/* + * This is an implementation of wcwidth() and wcswidth() (defined in + * IEEE Std 1002.1-2001) for Unicode. + * + * http://www.opengroup.org/onlinepubs/007904975/functions/wcwidth.html + * http://www.opengroup.org/onlinepubs/007904975/functions/wcswidth.html + * + * In fixed-width output devices, Latin characters all occupy a single + * "cell" position of equal width, whereas ideographic CJK characters + * occupy two such cells. Interoperability between terminal-line + * applications and (teletype-style) character terminals using the + * UTF-8 encoding requires agreement on which character should advance + * the cursor by how many cell positions. No established formal + * standards exist at present on which Unicode character shall occupy + * how many cell positions on character terminals. These routines are + * a first attempt of defining such behavior based on simple rules + * applied to data provided by the Unicode Consortium. + * + * For some graphical characters, the Unicode standard explicitly + * defines a character-cell width via the definition of the East Asian + * FullWidth (F), Wide (W), Half-width (H), and Narrow (Na) classes. + * In all these cases, there is no ambiguity about which width a + * terminal shall use. For characters in the East Asian Ambiguous (A) + * class, the width choice depends purely on a preference of backward + * compatibility with either historic CJK or Western practice. + * Choosing single-width for these characters is easy to justify as + * the appropriate long-term solution, as the CJK practice of + * displaying these characters as double-width comes from historic + * implementation simplicity (8-bit encoded characters were displayed + * single-width and 16-bit ones double-width, even for Greek, + * Cyrillic, etc.) and not any typographic considerations. + * + * Much less clear is the choice of width for the Not East Asian + * (Neutral) class. Existing practice does not dictate a width for any + * of these characters. It would nevertheless make sense + * typographically to allocate two character cells to characters such + * as for instance EM SPACE or VOLUME INTEGRAL, which cannot be + * represented adequately with a single-width glyph. The following + * routines at present merely assign a single-cell width to all + * neutral characters, in the interest of simplicity. This is not + * entirely satisfactory and should be reconsidered before + * establishing a formal standard in this area. At the moment, the + * decision which Not East Asian (Neutral) characters should be + * represented by double-width glyphs cannot yet be answered by + * applying a simple rule from the Unicode database content. Setting + * up a proper standard for the behavior of UTF-8 character terminals + * will require a careful analysis not only of each Unicode character, + * but also of each presentation form, something the author of these + * routines has avoided to do so far. + * + * http://www.unicode.org/unicode/reports/tr11/ + * + * Markus Kuhn -- 2007-05-26 (Unicode 5.0) + * + * Permission to use, copy, modify, and distribute this software + * for any purpose and without fee is hereby granted. The author + * disclaims all warranties with regard to this software. + * + * Latest version: http://www.cl.cam.ac.uk/~mgk25/ucs/wcwidth.c + */ + +#include <wchar.h> +#include <string> +#include <memory> + +namespace replxx { + +struct interval { + char32_t first; + char32_t last; +}; + +/* auxiliary function for binary search in interval table */ +static int bisearch(char32_t ucs, const struct interval *table, int max) { + int min = 0; + int mid; + + if (ucs < table[0].first || ucs > table[max].last) + return 0; + while (max >= min) { + mid = (min + max) / 2; + if (ucs > table[mid].last) + min = mid + 1; + else if (ucs < table[mid].first) + max = mid - 1; + else + return 1; + } + + return 0; +} + + +/* The following two functions define the column width of an ISO 10646 + * character as follows: + * + * - The null character (U+0000) has a column width of 0. + * + * - Other C0/C1 control characters and DEL will lead to a return + * value of -1. + * + * - Non-spacing and enclosing combining characters (general + * category code Mn or Me in the Unicode database) have a + * column width of 0. + * + * - SOFT HYPHEN (U+00AD) has a column width of 1. + * + * - Other format characters (general category code Cf in the Unicode + * database) and ZERO WIDTH SPACE (U+200B) have a column width of 0. + * + * - Hangul Jamo medial vowels and final consonants (U+1160-U+11FF) + * have a column width of 0. + * + * - Spacing characters in the East Asian Wide (W) or East Asian + * Full-width (F) category as defined in Unicode Technical + * Report #11 have a column width of 2. + * + * - All remaining characters (including all printable + * ISO 8859-1 and WGL4 characters, Unicode control characters, + * etc.) have a column width of 1. + * + * This implementation assumes that wchar_t characters are encoded + * in ISO 10646. + */ + +int mk_is_wide_char(char32_t ucs) { + static const struct interval wide[] = { + {0x1100, 0x115f}, {0x231a, 0x231b}, {0x2329, 0x232a}, + {0x23e9, 0x23ec}, {0x23f0, 0x23f0}, {0x23f3, 0x23f3}, + {0x25fd, 0x25fe}, {0x2614, 0x2615}, {0x2648, 0x2653}, + {0x267f, 0x267f}, {0x2693, 0x2693}, {0x26a1, 0x26a1}, + {0x26aa, 0x26ab}, {0x26bd, 0x26be}, {0x26c4, 0x26c5}, + {0x26ce, 0x26ce}, {0x26d4, 0x26d4}, {0x26ea, 0x26ea}, + {0x26f2, 0x26f3}, {0x26f5, 0x26f5}, {0x26fa, 0x26fa}, + {0x26fd, 0x26fd}, {0x2705, 0x2705}, {0x270a, 0x270b}, + {0x2728, 0x2728}, {0x274c, 0x274c}, {0x274e, 0x274e}, + {0x2753, 0x2755}, {0x2757, 0x2757}, {0x2795, 0x2797}, + {0x27b0, 0x27b0}, {0x27bf, 0x27bf}, {0x2b1b, 0x2b1c}, + {0x2b50, 0x2b50}, {0x2b55, 0x2b55}, {0x2e80, 0x2fdf}, + {0x2ff0, 0x303e}, {0x3040, 0x3247}, {0x3250, 0x4dbf}, + {0x4e00, 0xa4cf}, {0xa960, 0xa97f}, {0xac00, 0xd7a3}, + {0xf900, 0xfaff}, {0xfe10, 0xfe19}, {0xfe30, 0xfe6f}, + {0xff01, 0xff60}, {0xffe0, 0xffe6}, {0x16fe0, 0x16fe1}, + {0x17000, 0x18aff}, {0x1b000, 0x1b12f}, {0x1b170, 0x1b2ff}, + {0x1f004, 0x1f004}, {0x1f0cf, 0x1f0cf}, {0x1f18e, 0x1f18e}, + {0x1f191, 0x1f19a}, {0x1f200, 0x1f202}, {0x1f210, 0x1f23b}, + {0x1f240, 0x1f248}, {0x1f250, 0x1f251}, {0x1f260, 0x1f265}, + {0x1f300, 0x1f320}, {0x1f32d, 0x1f335}, {0x1f337, 0x1f37c}, + {0x1f37e, 0x1f393}, {0x1f3a0, 0x1f3ca}, {0x1f3cf, 0x1f3d3}, + {0x1f3e0, 0x1f3f0}, {0x1f3f4, 0x1f3f4}, {0x1f3f8, 0x1f43e}, + {0x1f440, 0x1f440}, {0x1f442, 0x1f4fc}, {0x1f4ff, 0x1f53d}, + {0x1f54b, 0x1f54e}, {0x1f550, 0x1f567}, {0x1f57a, 0x1f57a}, + {0x1f595, 0x1f596}, {0x1f5a4, 0x1f5a4}, {0x1f5fb, 0x1f64f}, + {0x1f680, 0x1f6c5}, {0x1f6cc, 0x1f6cc}, {0x1f6d0, 0x1f6d2}, + {0x1f6eb, 0x1f6ec}, {0x1f6f4, 0x1f6f8}, {0x1f910, 0x1f93e}, + {0x1f940, 0x1f94c}, {0x1f950, 0x1f96b}, {0x1f980, 0x1f997}, + {0x1f9c0, 0x1f9c0}, {0x1f9d0, 0x1f9e6}, {0x20000, 0x2fffd}, + {0x30000, 0x3fffd}, + }; + + if ( bisearch(ucs, wide, sizeof(wide) / sizeof(struct interval) - 1) ) { + return 1; + } + + return 0; +} + +int mk_wcwidth(char32_t ucs) { + /* sorted list of non-overlapping intervals of non-spacing characters */ + /* generated by "uniset +cat=Me +cat=Mn +cat=Cf -00AD +1160-11FF +200B c" */ + static const struct interval combining[] = { + {0x00ad, 0x00ad}, {0x0300, 0x036f}, {0x0483, 0x0489}, + {0x0591, 0x05bd}, {0x05bf, 0x05bf}, {0x05c1, 0x05c2}, + {0x05c4, 0x05c5}, {0x05c7, 0x05c7}, {0x0610, 0x061a}, + {0x061c, 0x061c}, {0x064b, 0x065f}, {0x0670, 0x0670}, + {0x06d6, 0x06dc}, {0x06df, 0x06e4}, {0x06e7, 0x06e8}, + {0x06ea, 0x06ed}, {0x0711, 0x0711}, {0x0730, 0x074a}, + {0x07a6, 0x07b0}, {0x07eb, 0x07f3}, {0x0816, 0x0819}, + {0x081b, 0x0823}, {0x0825, 0x0827}, {0x0829, 0x082d}, + {0x0859, 0x085b}, {0x08d4, 0x08e1}, {0x08e3, 0x0902}, + {0x093a, 0x093a}, {0x093c, 0x093c}, {0x0941, 0x0948}, + {0x094d, 0x094d}, {0x0951, 0x0957}, {0x0962, 0x0963}, + {0x0981, 0x0981}, {0x09bc, 0x09bc}, {0x09c1, 0x09c4}, + {0x09cd, 0x09cd}, {0x09e2, 0x09e3}, {0x0a01, 0x0a02}, + {0x0a3c, 0x0a3c}, {0x0a41, 0x0a42}, {0x0a47, 0x0a48}, + {0x0a4b, 0x0a4d}, {0x0a51, 0x0a51}, {0x0a70, 0x0a71}, + {0x0a75, 0x0a75}, {0x0a81, 0x0a82}, {0x0abc, 0x0abc}, + {0x0ac1, 0x0ac5}, {0x0ac7, 0x0ac8}, {0x0acd, 0x0acd}, + {0x0ae2, 0x0ae3}, {0x0afa, 0x0aff}, {0x0b01, 0x0b01}, + {0x0b3c, 0x0b3c}, {0x0b3f, 0x0b3f}, {0x0b41, 0x0b44}, + {0x0b4d, 0x0b4d}, {0x0b56, 0x0b56}, {0x0b62, 0x0b63}, + {0x0b82, 0x0b82}, {0x0bc0, 0x0bc0}, {0x0bcd, 0x0bcd}, + {0x0c00, 0x0c00}, {0x0c3e, 0x0c40}, {0x0c46, 0x0c48}, + {0x0c4a, 0x0c4d}, {0x0c55, 0x0c56}, {0x0c62, 0x0c63}, + {0x0c81, 0x0c81}, {0x0cbc, 0x0cbc}, {0x0cbf, 0x0cbf}, + {0x0cc6, 0x0cc6}, {0x0ccc, 0x0ccd}, {0x0ce2, 0x0ce3}, + {0x0d00, 0x0d01}, {0x0d3b, 0x0d3c}, {0x0d41, 0x0d44}, + {0x0d4d, 0x0d4d}, {0x0d62, 0x0d63}, {0x0dca, 0x0dca}, + {0x0dd2, 0x0dd4}, {0x0dd6, 0x0dd6}, {0x0e31, 0x0e31}, + {0x0e34, 0x0e3a}, {0x0e47, 0x0e4e}, {0x0eb1, 0x0eb1}, + {0x0eb4, 0x0eb9}, {0x0ebb, 0x0ebc}, {0x0ec8, 0x0ecd}, + {0x0f18, 0x0f19}, {0x0f35, 0x0f35}, {0x0f37, 0x0f37}, + {0x0f39, 0x0f39}, {0x0f71, 0x0f7e}, {0x0f80, 0x0f84}, + {0x0f86, 0x0f87}, {0x0f8d, 0x0f97}, {0x0f99, 0x0fbc}, + {0x0fc6, 0x0fc6}, {0x102d, 0x1030}, {0x1032, 0x1037}, + {0x1039, 0x103a}, {0x103d, 0x103e}, {0x1058, 0x1059}, + {0x105e, 0x1060}, {0x1071, 0x1074}, {0x1082, 0x1082}, + {0x1085, 0x1086}, {0x108d, 0x108d}, {0x109d, 0x109d}, + {0x1160, 0x11ff}, {0x135d, 0x135f}, {0x1712, 0x1714}, + {0x1732, 0x1734}, {0x1752, 0x1753}, {0x1772, 0x1773}, + {0x17b4, 0x17b5}, {0x17b7, 0x17bd}, {0x17c6, 0x17c6}, + {0x17c9, 0x17d3}, {0x17dd, 0x17dd}, {0x180b, 0x180e}, + {0x1885, 0x1886}, {0x18a9, 0x18a9}, {0x1920, 0x1922}, + {0x1927, 0x1928}, {0x1932, 0x1932}, {0x1939, 0x193b}, + {0x1a17, 0x1a18}, {0x1a1b, 0x1a1b}, {0x1a56, 0x1a56}, + {0x1a58, 0x1a5e}, {0x1a60, 0x1a60}, {0x1a62, 0x1a62}, + {0x1a65, 0x1a6c}, {0x1a73, 0x1a7c}, {0x1a7f, 0x1a7f}, + {0x1ab0, 0x1abe}, {0x1b00, 0x1b03}, {0x1b34, 0x1b34}, + {0x1b36, 0x1b3a}, {0x1b3c, 0x1b3c}, {0x1b42, 0x1b42}, + {0x1b6b, 0x1b73}, {0x1b80, 0x1b81}, {0x1ba2, 0x1ba5}, + {0x1ba8, 0x1ba9}, {0x1bab, 0x1bad}, {0x1be6, 0x1be6}, + {0x1be8, 0x1be9}, {0x1bed, 0x1bed}, {0x1bef, 0x1bf1}, + {0x1c2c, 0x1c33}, {0x1c36, 0x1c37}, {0x1cd0, 0x1cd2}, + {0x1cd4, 0x1ce0}, {0x1ce2, 0x1ce8}, {0x1ced, 0x1ced}, + {0x1cf4, 0x1cf4}, {0x1cf8, 0x1cf9}, {0x1dc0, 0x1df9}, + {0x1dfb, 0x1dff}, {0x200b, 0x200f}, {0x202a, 0x202e}, + {0x2060, 0x2064}, {0x2066, 0x206f}, {0x20d0, 0x20f0}, + {0x2cef, 0x2cf1}, {0x2d7f, 0x2d7f}, {0x2de0, 0x2dff}, + {0x302a, 0x302d}, {0x3099, 0x309a}, {0xa66f, 0xa672}, + {0xa674, 0xa67d}, {0xa69e, 0xa69f}, {0xa6f0, 0xa6f1}, + {0xa802, 0xa802}, {0xa806, 0xa806}, {0xa80b, 0xa80b}, + {0xa825, 0xa826}, {0xa8c4, 0xa8c5}, {0xa8e0, 0xa8f1}, + {0xa926, 0xa92d}, {0xa947, 0xa951}, {0xa980, 0xa982}, + {0xa9b3, 0xa9b3}, {0xa9b6, 0xa9b9}, {0xa9bc, 0xa9bc}, + {0xa9e5, 0xa9e5}, {0xaa29, 0xaa2e}, {0xaa31, 0xaa32}, + {0xaa35, 0xaa36}, {0xaa43, 0xaa43}, {0xaa4c, 0xaa4c}, + {0xaa7c, 0xaa7c}, {0xaab0, 0xaab0}, {0xaab2, 0xaab4}, + {0xaab7, 0xaab8}, {0xaabe, 0xaabf}, {0xaac1, 0xaac1}, + {0xaaec, 0xaaed}, {0xaaf6, 0xaaf6}, {0xabe5, 0xabe5}, + {0xabe8, 0xabe8}, {0xabed, 0xabed}, {0xfb1e, 0xfb1e}, + {0xfe00, 0xfe0f}, {0xfe20, 0xfe2f}, {0xfeff, 0xfeff}, + {0xfff9, 0xfffb}, {0x101fd, 0x101fd}, {0x102e0, 0x102e0}, + {0x10376, 0x1037a}, {0x10a01, 0x10a03}, {0x10a05, 0x10a06}, + {0x10a0c, 0x10a0f}, {0x10a38, 0x10a3a}, {0x10a3f, 0x10a3f}, + {0x10ae5, 0x10ae6}, {0x11001, 0x11001}, {0x11038, 0x11046}, + {0x1107f, 0x11081}, {0x110b3, 0x110b6}, {0x110b9, 0x110ba}, + {0x11100, 0x11102}, {0x11127, 0x1112b}, {0x1112d, 0x11134}, + {0x11173, 0x11173}, {0x11180, 0x11181}, {0x111b6, 0x111be}, + {0x111ca, 0x111cc}, {0x1122f, 0x11231}, {0x11234, 0x11234}, + {0x11236, 0x11237}, {0x1123e, 0x1123e}, {0x112df, 0x112df}, + {0x112e3, 0x112ea}, {0x11300, 0x11301}, {0x1133c, 0x1133c}, + {0x11340, 0x11340}, {0x11366, 0x1136c}, {0x11370, 0x11374}, + {0x11438, 0x1143f}, {0x11442, 0x11444}, {0x11446, 0x11446}, + {0x114b3, 0x114b8}, {0x114ba, 0x114ba}, {0x114bf, 0x114c0}, + {0x114c2, 0x114c3}, {0x115b2, 0x115b5}, {0x115bc, 0x115bd}, + {0x115bf, 0x115c0}, {0x115dc, 0x115dd}, {0x11633, 0x1163a}, + {0x1163d, 0x1163d}, {0x1163f, 0x11640}, {0x116ab, 0x116ab}, + {0x116ad, 0x116ad}, {0x116b0, 0x116b5}, {0x116b7, 0x116b7}, + {0x1171d, 0x1171f}, {0x11722, 0x11725}, {0x11727, 0x1172b}, + {0x11a01, 0x11a06}, {0x11a09, 0x11a0a}, {0x11a33, 0x11a38}, + {0x11a3b, 0x11a3e}, {0x11a47, 0x11a47}, {0x11a51, 0x11a56}, + {0x11a59, 0x11a5b}, {0x11a8a, 0x11a96}, {0x11a98, 0x11a99}, + {0x11c30, 0x11c36}, {0x11c38, 0x11c3d}, {0x11c3f, 0x11c3f}, + {0x11c92, 0x11ca7}, {0x11caa, 0x11cb0}, {0x11cb2, 0x11cb3}, + {0x11cb5, 0x11cb6}, {0x11d31, 0x11d36}, {0x11d3a, 0x11d3a}, + {0x11d3c, 0x11d3d}, {0x11d3f, 0x11d45}, {0x11d47, 0x11d47}, + {0x16af0, 0x16af4}, {0x16b30, 0x16b36}, {0x16f8f, 0x16f92}, + {0x1bc9d, 0x1bc9e}, {0x1bca0, 0x1bca3}, {0x1d167, 0x1d169}, + {0x1d173, 0x1d182}, {0x1d185, 0x1d18b}, {0x1d1aa, 0x1d1ad}, + {0x1d242, 0x1d244}, {0x1da00, 0x1da36}, {0x1da3b, 0x1da6c}, + {0x1da75, 0x1da75}, {0x1da84, 0x1da84}, {0x1da9b, 0x1da9f}, + {0x1daa1, 0x1daaf}, {0x1e000, 0x1e006}, {0x1e008, 0x1e018}, + {0x1e01b, 0x1e021}, {0x1e023, 0x1e024}, {0x1e026, 0x1e02a}, + {0x1e8d0, 0x1e8d6}, {0x1e944, 0x1e94a}, {0xe0001, 0xe0001}, + {0xe0020, 0xe007f}, {0xe0100, 0xe01ef}, + }; + + /* test for 8-bit control characters */ + if ( ucs == 0 ) { + return 0; + } + if ( ( ucs < 32 ) || ( ( ucs >= 0x7f ) && ( ucs < 0xa0 ) ) ) { + return -1; + } + + /* binary search in table of non-spacing characters */ + if ( bisearch( ucs, combining, sizeof( combining ) / sizeof( struct interval ) - 1 ) ) { + return 0; + } + + /* if we arrive here, ucs is not a combining or C0/C1 control character */ + return ( mk_is_wide_char( ucs ) ? 2 : 1 ); +} + +} + diff --git a/contrib/replxx/src/windows.cxx b/contrib/replxx/src/windows.cxx new file mode 100644 index 000000000..e5b6de428 --- /dev/null +++ b/contrib/replxx/src/windows.cxx @@ -0,0 +1,158 @@ +#ifdef _WIN32 + +#include <iostream> + +#include "windows.hxx" +#include "conversion.hxx" +#include "io.hxx" + +#ifndef ENABLE_VIRTUAL_TERMINAL_PROCESSING +static DWORD const ENABLE_VIRTUAL_TERMINAL_PROCESSING = 4; +#endif + +using namespace std; + +namespace replxx { + +WinAttributes WIN_ATTR; + +template<typename T> +T* HandleEsc(T* p, T* end) { + if (*p == '[') { + int code = 0; + + int thisBackground( WIN_ATTR._defaultBackground ); + for (++p; p < end; ++p) { + char32_t c = *p; + + if ('0' <= c && c <= '9') { + code = code * 10 + (c - '0'); + } else if (c == 'm' || c == ';') { + switch (code) { + case 0: + WIN_ATTR._consoleAttribute = WIN_ATTR._defaultAttribute; + WIN_ATTR._consoleColor = WIN_ATTR._defaultColor | thisBackground; + break; + case 1: // BOLD + case 5: // BLINK + WIN_ATTR._consoleAttribute = (WIN_ATTR._defaultAttribute ^ FOREGROUND_INTENSITY) & INTENSITY; + break; + case 22: + WIN_ATTR._consoleAttribute = WIN_ATTR._defaultAttribute; + break; + case 30: + case 90: + WIN_ATTR._consoleColor = thisBackground; + break; + case 31: + case 91: + WIN_ATTR._consoleColor = FOREGROUND_RED | thisBackground; + break; + case 32: + case 92: + WIN_ATTR._consoleColor = FOREGROUND_GREEN | thisBackground; + break; + case 33: + case 93: + WIN_ATTR._consoleColor = FOREGROUND_RED | FOREGROUND_GREEN | thisBackground; + break; + case 34: + case 94: + WIN_ATTR._consoleColor = FOREGROUND_BLUE | thisBackground; + break; + case 35: + case 95: + WIN_ATTR._consoleColor = FOREGROUND_BLUE | FOREGROUND_RED | thisBackground; + break; + case 36: + case 96: + WIN_ATTR._consoleColor = FOREGROUND_BLUE | FOREGROUND_GREEN | thisBackground; + break; + case 37: + case 97: + WIN_ATTR._consoleColor = FOREGROUND_GREEN | FOREGROUND_RED | FOREGROUND_BLUE | thisBackground; + break; + case 101: + thisBackground = BACKGROUND_RED; + break; + } + + if ( ( code >= 90 ) && ( code <= 97 ) ) { + WIN_ATTR._consoleAttribute = (WIN_ATTR._defaultAttribute ^ FOREGROUND_INTENSITY) & INTENSITY; + } + + code = 0; + } + + if (*p == 'm') { + ++p; + break; + } + } + } else { + ++p; + } + + auto handle = GetStdHandle(STD_OUTPUT_HANDLE); + SetConsoleTextAttribute( + handle, + WIN_ATTR._consoleAttribute | WIN_ATTR._consoleColor + ); + + return p; +} + +int win_write( char const* str_, int size_ ) { + int count( 0 ); + DWORD currentMode( 0 ); + HANDLE consoleOut( GetStdHandle( STD_OUTPUT_HANDLE ) ); + if ( tty::out && GetConsoleMode( consoleOut, ¤tMode ) ) { + UINT inputCodePage( GetConsoleCP() ); + UINT outputCodePage( GetConsoleOutputCP() ); + SetConsoleCP( 65001 ); + SetConsoleOutputCP( 65001 ); + DWORD nWritten( 0 ); + if ( SetConsoleMode( consoleOut, currentMode | ENABLE_VIRTUAL_TERMINAL_PROCESSING ) ) { + WriteConsoleA( consoleOut, str_, size_, &nWritten, nullptr ); + count = nWritten; + SetConsoleMode( consoleOut, currentMode ); + } else { + char const* s( str_ ); + char const* e( str_ + size_ ); + while ( str_ < e ) { + if ( *str_ == 27 ) { + if ( s < str_ ) { + int toWrite( str_ - s ); + WriteConsoleA( consoleOut, s, static_cast<DWORD>( toWrite ), &nWritten, nullptr ); + count += nWritten; + if ( nWritten != toWrite ) { + s = str_ = nullptr; + break; + } + } + s = HandleEsc( str_ + 1, e ); + int escaped( s - str_); + count += escaped; + str_ = s; + } else { + ++ str_; + } + } + + if ( s < str_ ) { + WriteConsoleA( consoleOut, s, static_cast<DWORD>( str_ - s ), &nWritten, nullptr ); + count += nWritten; + } + } + SetConsoleCP( inputCodePage ); + SetConsoleOutputCP( outputCodePage ); + } else { + count = _write( 1, str_, size_ ); + } + return ( count ); +} + +} + +#endif + diff --git a/contrib/replxx/src/windows.hxx b/contrib/replxx/src/windows.hxx new file mode 100644 index 000000000..d49484fd8 --- /dev/null +++ b/contrib/replxx/src/windows.hxx @@ -0,0 +1,44 @@ +#ifndef REPLXX_WINDOWS_HXX_INCLUDED +#define REPLXX_WINDOWS_HXX_INCLUDED 1 + +#include <conio.h> +#include <windows.h> +#include <io.h> + +namespace replxx { + +static const int FOREGROUND_WHITE = + FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE; +static const int BACKGROUND_WHITE = + BACKGROUND_RED | BACKGROUND_GREEN | BACKGROUND_BLUE; +static const int INTENSITY = FOREGROUND_INTENSITY | BACKGROUND_INTENSITY; + +class WinAttributes { + public: + WinAttributes() { + CONSOLE_SCREEN_BUFFER_INFO info; + GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &info); + _defaultAttribute = info.wAttributes & INTENSITY; + _defaultColor = info.wAttributes & FOREGROUND_WHITE; + _defaultBackground = info.wAttributes & BACKGROUND_WHITE; + + _consoleAttribute = _defaultAttribute; + _consoleColor = _defaultColor | _defaultBackground; + } + + public: + int _defaultAttribute; + int _defaultColor; + int _defaultBackground; + + int _consoleAttribute; + int _consoleColor; +}; + +int win_write( char const*, int ); + +extern WinAttributes WIN_ATTR; + +} + +#endif |