terminal_colors.h

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/*
 * Functions and macros for working with colors on UNIX terminals.
 *
 *
 * Created by MacBook on 14.01.2025.
 */
 
#ifndef CLIBS_TERMINAL_COLORS_H
#define CLIBS_TERMINAL_COLORS_H
 
#include "attributes.h" /* PrintfLike(), LibraryDefined */
 
#include <stdarg.h>
#include <stdio.h>
 

#define PRINT_COLOR "%s"

#define COLOR_CREATOR( NUM ) "\033[" NUM "m"
 
 
#define COLOR_DEFAULT COLOR_CREATOR( "0" )
 
 
#define GROUND_FORE "3"
#define GROUND_BACK "4"
 
 
#define COLORCODE_BLACK   "0"
#define COLORCODE_RED     "1"
#define COLORCODE_GREEN   "2"
#define COLORCODE_YELLOW  "3"
#define COLORCODE_BLUE    "4"
#define COLORCODE_MAGENTA "5"
#define COLORCODE_CYAN    "6"
#define COLORCODE_WHITE   "7"
 
#define FOREGROUND_BLACK   COLOR_CREATOR( GROUND_FORE COLORCODE_BLACK )
#define FOREGROUND_RED     COLOR_CREATOR( GROUND_FORE COLORCODE_RED )
#define FOREGROUND_GREEN   COLOR_CREATOR( GROUND_FORE COLORCODE_GREEN )
#define FOREGROUND_YELLOW  COLOR_CREATOR( GROUND_FORE COLORCODE_YELLOW )
#define FOREGROUND_BLUE    COLOR_CREATOR( GROUND_FORE COLORCODE_BLUE )
#define FOREGROUND_MAGENTA COLOR_CREATOR( GROUND_FORE COLORCODE_MAGENTA )
#define FOREGROUND_CYAN    COLOR_CREATOR( GROUND_FORE COLORCODE_CYAN )
#define FOREGROUND_WHITE   COLOR_CREATOR( GROUND_FORE COLORCODE_WHITE )
 
#define BACKGROUND_BLACK   COLOR_CREATOR( GROUND_BACK COLORCODE_BLACK )
#define BACKGROUND_RED     COLOR_CREATOR( GROUND_BACK COLORCODE_RED )
#define BACKGROUND_GREEN   COLOR_CREATOR( GROUND_BACK COLORCODE_GREEN )
#define BACKGROUND_YELLOW  COLOR_CREATOR( GROUND_BACK COLORCODE_YELLOW )
#define BACKGROUND_BLUE    COLOR_CREATOR( GROUND_BACK COLORCODE_BLUE )
#define BACKGROUND_MAGENTA COLOR_CREATOR( GROUND_BACK COLORCODE_MAGENTA )
#define BACKGROUND_CYAN    COLOR_CREATOR( GROUND_BACK COLORCODE_CYAN )
#define BACKGROUND_WHITE   COLOR_CREATOR( GROUND_BACK COLORCODE_WHITE )
 
 
#define FOREGROUND_GRAY COLOR_CREATOR( GROUND_FORE "8;5;238" )
#define BACKGROUND_GRAY COLOR_CREATOR( GROUND_BACK "8;5;238" )
 

LibraryDefined inline bool SetTerminalColor( FILE *stream, const char *Color )
{
    return fprintf( stream, "%s", Color ) > 0;
}

LibraryDefined inline int VPrintInColor( FILE *file,
                                         const char *Color,
                                         const char *format,
                                         va_list vaList )
{
    if ( !SetTerminalColor( file, Color ) )
        return -1;
 
    const int rv = vfprintf( file, format, vaList );
 
    if ( !SetTerminalColor( file, COLOR_DEFAULT ) )
        return -1;
 
    return rv;
}

LibraryDefined PrintfLike( 3, 4 ) inline int PrintInColor( FILE *file,
                                                           const char *Color,
                                                           const char *format,
                                                           ... )
{
    va_list va;
    va_start( va, format );
    const int rv = VPrintInColor( file, Color, format, va );
    va_end( va );
    return rv;
}
 
 
#endif //CLIBS_TERMINAL_COLORS_H