diff options
Diffstat (limited to 'color.c')
| -rw-r--r-- | color.c | 41 |
1 files changed, 33 insertions, 8 deletions
@@ -40,7 +40,7 @@ struct color { enum { COLOR_UNSPECIFIED = 0, COLOR_NORMAL, - COLOR_ANSI, /* basic 0-7 ANSI colors */ + COLOR_ANSI, /* basic 0-7 ANSI colors + "default" (value = 9) */ COLOR_256, COLOR_RGB } type; @@ -83,6 +83,27 @@ static int parse_ansi_color(struct color *out, const char *name, int len) int i; int color_offset = COLOR_FOREGROUND_ANSI; + if (match_word(name, len, "default")) { + /* + * Restores to the terminal's default color, which may not be + * the same as explicitly setting "white" or "black". + * + * ECMA-48 - Control Functions \ + * for Coded Character Sets, 5th edition (June 1991): + * > 39 default display colour (implementation-defined) + * > 49 default background colour (implementation-defined) + * + * Although not supported /everywhere/--according to terminfo, + * some terminals define "op" (original pair) as a blunt + * "set to white on black", or even "send full SGR reset"-- + * it's standard and well-supported enough that if a user + * asks for it in their config this will do the right thing. + */ + out->type = COLOR_ANSI; + out->value = 9 + color_offset; + return 0; + } + if (strncasecmp(name, "bright", 6) == 0) { color_offset = COLOR_FOREGROUND_BRIGHT_ANSI; name += 6; @@ -234,6 +255,7 @@ int color_parse_mem(const char *value, int value_len, char *dst) const char *ptr = value; int len = value_len; char *end = dst + COLOR_MAXLEN; + unsigned int has_reset = 0; unsigned int attr = 0; struct color fg = { COLOR_UNSPECIFIED }; struct color bg = { COLOR_UNSPECIFIED }; @@ -248,12 +270,7 @@ int color_parse_mem(const char *value, int value_len, char *dst) return 0; } - if (!strncasecmp(ptr, "reset", len)) { - xsnprintf(dst, end - dst, GIT_COLOR_RESET); - return 0; - } - - /* [fg [bg]] [attr]... */ + /* [reset] [fg [bg]] [attr]... */ while (len > 0) { const char *word = ptr; struct color c = { COLOR_UNSPECIFIED }; @@ -270,6 +287,11 @@ int color_parse_mem(const char *value, int value_len, char *dst) len--; } + if (match_word(word, wordlen, "reset")) { + has_reset = 1; + continue; + } + if (!parse_color(&c, word, wordlen)) { if (fg.type == COLOR_UNSPECIFIED) { fg = c; @@ -295,13 +317,16 @@ int color_parse_mem(const char *value, int value_len, char *dst) *dst++ = (x); \ } while(0) - if (attr || !color_empty(&fg) || !color_empty(&bg)) { + if (has_reset || attr || !color_empty(&fg) || !color_empty(&bg)) { int sep = 0; int i; OUT('\033'); OUT('['); + if (has_reset) + sep++; + for (i = 0; attr; i++) { unsigned bit = (1 << i); if (!(attr & bit)) |