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//===---------------------AnsiTerminal.h ------------------------*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//



#define ANSI_FG_COLOR_BLACK         30
#define ANSI_FG_COLOR_RED           31	
#define ANSI_FG_COLOR_GREEN         32	
#define ANSI_FG_COLOR_YELLOW        33	
#define ANSI_FG_COLOR_BLUE          34	
#define ANSI_FG_COLOR_PURPLE        35	
#define ANSI_FG_COLOR_CYAN          36	
#define ANSI_FG_COLOR_WHITE         37	

#define ANSI_BG_COLOR_BLACK         40
#define ANSI_BG_COLOR_RED           41	
#define ANSI_BG_COLOR_GREEN         42	
#define ANSI_BG_COLOR_YELLOW        43	
#define ANSI_BG_COLOR_BLUE          44	
#define ANSI_BG_COLOR_PURPLE        45	
#define ANSI_BG_COLOR_CYAN          46	
#define ANSI_BG_COLOR_WHITE         47	

#define ANSI_SPECIAL_FRAMED         51
#define ANSI_SPECIAL_ENCIRCLED      52

#define ANSI_CTRL_NORMAL            0
#define ANSI_CTRL_BOLD              1
#define ANSI_CTRL_FAINT             2
#define ANSI_CTRL_ITALIC            3
#define ANSI_CTRL_UNDERLINE         4
#define ANSI_CTRL_SLOW_BLINK        5
#define ANSI_CTRL_FAST_BLINK        6
#define ANSI_CTRL_IMAGE_NEGATIVE    7
#define ANSI_CTRL_CONCEAL           8
#define ANSI_CTRL_CROSSED_OUT       9

#define ANSI_ESC_START          "\033["
#define ANSI_ESC_END            "m"

#define ANSI_1_CTRL(ctrl1)          "\033["##ctrl1 ANSI_ESC_END
#define ANSI_2_CTRL(ctrl1,ctrl2)    "\033["##ctrl1";"##ctrl2 ANSI_ESC_END

namespace lldb_utility {

    namespace ansi {

        inline std::string
        FormatAnsiTerminalCodes(const char *format, bool do_color = true)
        {
            // Convert "${ansi.XXX}" tokens to ansi values or clear them if do_color is false.
            static const struct
            {
                const char *name;
                const char *value;
            } g_color_tokens[] =
            {
        #define _TO_STR2(_val) #_val
        #define _TO_STR(_val) _TO_STR2(_val)
                { "fg.black}",        ANSI_ESC_START _TO_STR(ANSI_FG_COLOR_BLACK)      ANSI_ESC_END },
                { "fg.red}",          ANSI_ESC_START _TO_STR(ANSI_FG_COLOR_RED)        ANSI_ESC_END },
                { "fg.green}",        ANSI_ESC_START _TO_STR(ANSI_FG_COLOR_GREEN)      ANSI_ESC_END },
                { "fg.yellow}",       ANSI_ESC_START _TO_STR(ANSI_FG_COLOR_YELLOW)     ANSI_ESC_END },
                { "fg.blue}",         ANSI_ESC_START _TO_STR(ANSI_FG_COLOR_BLUE)       ANSI_ESC_END },
                { "fg.purple}",       ANSI_ESC_START _TO_STR(ANSI_FG_COLOR_PURPLE)     ANSI_ESC_END },
                { "fg.cyan}",         ANSI_ESC_START _TO_STR(ANSI_FG_COLOR_CYAN)       ANSI_ESC_END },
                { "fg.white}",        ANSI_ESC_START _TO_STR(ANSI_FG_COLOR_WHITE)      ANSI_ESC_END },
                { "bg.black}",        ANSI_ESC_START _TO_STR(ANSI_BG_COLOR_BLACK)      ANSI_ESC_END },
                { "bg.red}",          ANSI_ESC_START _TO_STR(ANSI_BG_COLOR_RED)        ANSI_ESC_END },
                { "bg.green}",        ANSI_ESC_START _TO_STR(ANSI_BG_COLOR_GREEN)      ANSI_ESC_END },
                { "bg.yellow}",       ANSI_ESC_START _TO_STR(ANSI_BG_COLOR_YELLOW)     ANSI_ESC_END },
                { "bg.blue}",         ANSI_ESC_START _TO_STR(ANSI_BG_COLOR_BLUE)       ANSI_ESC_END },
                { "bg.purple}",       ANSI_ESC_START _TO_STR(ANSI_BG_COLOR_PURPLE)     ANSI_ESC_END },
                { "bg.cyan}",         ANSI_ESC_START _TO_STR(ANSI_BG_COLOR_CYAN)       ANSI_ESC_END },
                { "bg.white}",        ANSI_ESC_START _TO_STR(ANSI_BG_COLOR_WHITE)      ANSI_ESC_END },
                { "normal}",          ANSI_ESC_START _TO_STR(ANSI_CTRL_NORMAL)         ANSI_ESC_END },
                { "bold}",            ANSI_ESC_START _TO_STR(ANSI_CTRL_BOLD)           ANSI_ESC_END },
                { "faint}",           ANSI_ESC_START _TO_STR(ANSI_CTRL_FAINT)          ANSI_ESC_END },
                { "italic}",          ANSI_ESC_START _TO_STR(ANSI_CTRL_ITALIC)         ANSI_ESC_END },
                { "underline}",       ANSI_ESC_START _TO_STR(ANSI_CTRL_UNDERLINE)      ANSI_ESC_END },
                { "slow-blink}",      ANSI_ESC_START _TO_STR(ANSI_CTRL_SLOW_BLINK)     ANSI_ESC_END },
                { "fast-blink}",      ANSI_ESC_START _TO_STR(ANSI_CTRL_FAST_BLINK)     ANSI_ESC_END },
                { "negative}",        ANSI_ESC_START _TO_STR(ANSI_CTRL_IMAGE_NEGATIVE) ANSI_ESC_END },
                { "conceal}",         ANSI_ESC_START _TO_STR(ANSI_CTRL_CONCEAL)        ANSI_ESC_END },
                { "crossed-out}",     ANSI_ESC_START _TO_STR(ANSI_CTRL_CROSSED_OUT)    ANSI_ESC_END },
        #undef _TO_STR
        #undef _TO_STR2
            };
            static const char tok_hdr[] = "${ansi.";

            std::string fmt;
            for (const char *p = format; *p; ++p)
            {
                const char *tok_start = strstr (p, tok_hdr);
                if (!tok_start)
                {
                    fmt.append (p, strlen(p));
                    break;
                }

                fmt.append (p, tok_start - p);
                p = tok_start;

                const char *tok_str = tok_start + sizeof(tok_hdr) - 1;
                for (size_t i = 0; i < sizeof(g_color_tokens) / sizeof(g_color_tokens[0]); ++i)
                {
                    if (!strncmp (tok_str, g_color_tokens[i].name, strlen(g_color_tokens[i].name)))
                    {
                        if (do_color)
                            fmt.append (g_color_tokens[i].value);
                        p = tok_str + strlen (g_color_tokens[i].name) - 1;
                        break;
                    }
                }
            }
            return fmt;
        }
    }
}