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#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 );
}
}
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