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- #include <chrono>
- #include <cstdlib>
- #include <cstring>
- #include <ctime>
- #include <wctype.h>
-
- #include "util.hxx"
-
- namespace replxx {
-
- int mk_wcwidth( char32_t );
-
- /**
- * 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 );
- }
-
- std::string now_ms_str( void ) {
- std::chrono::milliseconds ms( std::chrono::duration_cast<std::chrono::milliseconds>( std::chrono::system_clock::now().time_since_epoch() ) );
- time_t t( ms.count() / 1000 );
- tm broken;
- #ifdef _WIN32
- #define localtime_r( t, b ) localtime_s( ( b ), ( t ) )
- #endif
- localtime_r( &t, &broken );
- #undef localtime_r
- static int const BUFF_SIZE( 32 );
- char str[BUFF_SIZE];
- strftime( str, BUFF_SIZE, "%Y-%m-%d %H:%M:%S.", &broken );
- snprintf( str + sizeof ( "YYYY-mm-dd HH:MM:SS" ), 5, "%03d", static_cast<int>( ms.count() % 1000 ) );
- return ( str );
- }
-
- }
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