/* * gui-color.c - color functions (used by all GUI) * * Copyright (C) 2003-2019 Sébastien Helleu * * This file is part of WeeChat, the extensible chat client. * * WeeChat is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 3 of the License, or * (at your option) any later version. * * WeeChat is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with WeeChat. If not, see . */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include #include #include #include #include #include #include #include #include #include "../core/weechat.h" #include "../core/wee-config.h" #include "../core/wee-hashtable.h" #include "../core/wee-list.h" #include "../core/wee-string.h" #include "../core/wee-utf8.h" #include "../plugins/plugin.h" #include "gui-color.h" #include "gui-chat.h" #include "gui-window.h" struct t_gui_color *gui_color[GUI_COLOR_NUM_COLORS]; /* GUI colors */ /* palette colors and aliases */ struct t_hashtable *gui_color_hash_palette_color = NULL; struct t_hashtable *gui_color_hash_palette_alias = NULL; struct t_weelist *gui_color_list_with_alias = NULL; /* terminal colors */ int gui_color_term256[256] = { 0x000000, 0x800000, 0x008000, 0x808000, 0x000080, 0x800080, /* 0-5 */ 0x008080, 0xc0c0c0, 0x808080, 0xff0000, 0x00ff00, 0xffff00, /* 6-11 */ 0x0000ff, 0xff00ff, 0x00ffff, 0xffffff, 0x000000, 0x00005f, /* 12-17 */ 0x000087, 0x0000af, 0x0000d7, 0x0000ff, 0x005f00, 0x005f5f, /* 18-23 */ 0x005f87, 0x005faf, 0x005fd7, 0x005fff, 0x008700, 0x00875f, /* 24-29 */ 0x008787, 0x0087af, 0x0087d7, 0x0087ff, 0x00af00, 0x00af5f, /* 30-35 */ 0x00af87, 0x00afaf, 0x00afd7, 0x00afff, 0x00d700, 0x00d75f, /* 36-41 */ 0x00d787, 0x00d7af, 0x00d7d7, 0x00d7ff, 0x00ff00, 0x00ff5f, /* 42-47 */ 0x00ff87, 0x00ffaf, 0x00ffd7, 0x00ffff, 0x5f0000, 0x5f005f, /* 48-53 */ 0x5f0087, 0x5f00af, 0x5f00d7, 0x5f00ff, 0x5f5f00, 0x5f5f5f, /* 54-59 */ 0x5f5f87, 0x5f5faf, 0x5f5fd7, 0x5f5fff, 0x5f8700, 0x5f875f, /* 60-65 */ 0x5f8787, 0x5f87af, 0x5f87d7, 0x5f87ff, 0x5faf00, 0x5faf5f, /* 66-71 */ 0x5faf87, 0x5fafaf, 0x5fafd7, 0x5fafff, 0x5fd700, 0x5fd75f, /* 72-77 */ 0x5fd787, 0x5fd7af, 0x5fd7d7, 0x5fd7ff, 0x5fff00, 0x5fff5f, /* 78-83 */ 0x5fff87, 0x5fffaf, 0x5fffd7, 0x5fffff, 0x870000, 0x87005f, /* 84-89 */ 0x870087, 0x8700af, 0x8700d7, 0x8700ff, 0x875f00, 0x875f5f, /* 90-95 */ 0x875f87, 0x875faf, 0x875fd7, 0x875fff, 0x878700, 0x87875f, /* 96-101 */ 0x878787, 0x8787af, 0x8787d7, 0x8787ff, 0x87af00, 0x87af5f, /* 102-107 */ 0x87af87, 0x87afaf, 0x87afd7, 0x87afff, 0x87d700, 0x87d75f, /* 108-113 */ 0x87d787, 0x87d7af, 0x87d7d7, 0x87d7ff, 0x87ff00, 0x87ff5f, /* 114-119 */ 0x87ff87, 0x87ffaf, 0x87ffd7, 0x87ffff, 0xaf0000, 0xaf005f, /* 120-125 */ 0xaf0087, 0xaf00af, 0xaf00d7, 0xaf00ff, 0xaf5f00, 0xaf5f5f, /* 126-131 */ 0xaf5f87, 0xaf5faf, 0xaf5fd7, 0xaf5fff, 0xaf8700, 0xaf875f, /* 132-137 */ 0xaf8787, 0xaf87af, 0xaf87d7, 0xaf87ff, 0xafaf00, 0xafaf5f, /* 138-143 */ 0xafaf87, 0xafafaf, 0xafafd7, 0xafafff, 0xafd700, 0xafd75f, /* 144-149 */ 0xafd787, 0xafd7af, 0xafd7d7, 0xafd7ff, 0xafff00, 0xafff5f, /* 150-155 */ 0xafff87, 0xafffaf, 0xafffd7, 0xafffff, 0xd70000, 0xd7005f, /* 156-161 */ 0xd70087, 0xd700af, 0xd700d7, 0xd700ff, 0xd75f00, 0xd75f5f, /* 162-167 */ 0xd75f87, 0xd75faf, 0xd75fd7, 0xd75fff, 0xd78700, 0xd7875f, /* 168-173 */ 0xd78787, 0xd787af, 0xd787d7, 0xd787ff, 0xd7af00, 0xd7af5f, /* 174-179 */ 0xd7af87, 0xd7afaf, 0xd7afd7, 0xd7afff, 0xd7d700, 0xd7d75f, /* 180-185 */ 0xd7d787, 0xd7d7af, 0xd7d7d7, 0xd7d7ff, 0xd7ff00, 0xd7ff5f, /* 186-191 */ 0xd7ff87, 0xd7ffaf, 0xd7ffd7, 0xd7ffff, 0xff0000, 0xff005f, /* 192-197 */ 0xff0087, 0xff00af, 0xff00d7, 0xff00ff, 0xff5f00, 0xff5f5f, /* 198-203 */ 0xff5f87, 0xff5faf, 0xff5fd7, 0xff5fff, 0xff8700, 0xff875f, /* 204-209 */ 0xff8787, 0xff87af, 0xff87d7, 0xff87ff, 0xffaf00, 0xffaf5f, /* 210-215 */ 0xffaf87, 0xffafaf, 0xffafd7, 0xffafff, 0xffd700, 0xffd75f, /* 216-221 */ 0xffd787, 0xffd7af, 0xffd7d7, 0xffd7ff, 0xffff00, 0xffff5f, /* 222-227 */ 0xffff87, 0xffffaf, 0xffffd7, 0xffffff, 0x080808, 0x121212, /* 228-233 */ 0x1c1c1c, 0x262626, 0x303030, 0x3a3a3a, 0x444444, 0x4e4e4e, /* 234-239 */ 0x585858, 0x626262, 0x6c6c6c, 0x767676, 0x808080, 0x8a8a8a, /* 240-245 */ 0x949494, 0x9e9e9e, 0xa8a8a8, 0xb2b2b2, 0xbcbcbc, 0xc6c6c6, /* 246-251 */ 0xd0d0d0, 0xdadada, 0xe4e4e4, 0xeeeeee, /* 252-255 */ }; /* ANSI colors */ regex_t *gui_color_regex_ansi = NULL; char *gui_color_ansi[16] = { /* 0-7 */ "black", "red", "green", "brown", "blue", "magenta", "cyan", "gray", /* 8-15 */ "darkgray", "lightred", "lightgreen", "yellow", "lightblue", "lightmagenta", "lightcyan", "white", }; /* * Returns a color code from an option, which can be a color or a string. * * Returns NULL if the option has a wrong type. */ const char * gui_color_from_option (struct t_config_option *option) { if (!option) return NULL; switch (option->type) { case CONFIG_OPTION_TYPE_COLOR: if (option->min < 0) { return gui_color_get_custom ( gui_color_get_name (CONFIG_COLOR(option))); } return GUI_COLOR(option->min); case CONFIG_OPTION_TYPE_STRING: return gui_color_get_custom (CONFIG_STRING(option)); default: return NULL; } /* never executed */ return NULL; } /* * Searches for a color with configuration option name. * * Returns color string, NULL if not found. */ const char * gui_color_search_config (const char *color_name) { struct t_config_option *ptr_option; if (!color_name) return NULL; /* search in weechat.conf colors (example: "chat_delimiters") */ for (ptr_option = weechat_config_section_color->options; ptr_option; ptr_option = ptr_option->next_option) { if (string_strcasecmp (ptr_option->name, color_name) == 0) return gui_color_from_option (ptr_option); } /* search in any configuration file (example: "irc.color.message_quit") */ if (strchr (color_name, '.')) { config_file_search_with_string (color_name, NULL, NULL, &ptr_option, NULL); if (ptr_option) return gui_color_from_option (ptr_option); } /* color not found */ return NULL; } /* * Returns flag for attribute char of a color. * * Returns 0 if char is unknown. */ int gui_color_attr_get_flag (char c) { if (c == GUI_COLOR_EXTENDED_BOLD_CHAR) return GUI_COLOR_EXTENDED_BOLD_FLAG; if (c == GUI_COLOR_EXTENDED_REVERSE_CHAR) return GUI_COLOR_EXTENDED_REVERSE_FLAG; if (c == GUI_COLOR_EXTENDED_ITALIC_CHAR) return GUI_COLOR_EXTENDED_ITALIC_FLAG; if (c == GUI_COLOR_EXTENDED_UNDERLINE_CHAR) return GUI_COLOR_EXTENDED_UNDERLINE_FLAG; if (c == GUI_COLOR_EXTENDED_KEEPATTR_CHAR) return GUI_COLOR_EXTENDED_KEEPATTR_FLAG; return 0; } /* * Builds string with attributes of color. * * The str_attr must be at least 6 bytes long (5 for attributes + final '\0'). */ void gui_color_attr_build_string (int color, char *str_attr) { int i; i = 0; if (color & GUI_COLOR_EXTENDED_BOLD_FLAG) str_attr[i++] = GUI_COLOR_EXTENDED_BOLD_CHAR; if (color & GUI_COLOR_EXTENDED_REVERSE_FLAG) str_attr[i++] = GUI_COLOR_EXTENDED_REVERSE_CHAR; if (color & GUI_COLOR_EXTENDED_ITALIC_FLAG) str_attr[i++] = GUI_COLOR_EXTENDED_ITALIC_CHAR; if (color & GUI_COLOR_EXTENDED_UNDERLINE_FLAG) str_attr[i++] = GUI_COLOR_EXTENDED_UNDERLINE_CHAR; if (color & GUI_COLOR_EXTENDED_KEEPATTR_FLAG) str_attr[i++] = GUI_COLOR_EXTENDED_KEEPATTR_CHAR; str_attr[i] = '\0'; } /* * Gets a custom color with a name. */ const char * gui_color_get_custom (const char *color_name) { int fg, bg, fg_term, bg_term, term_color; static char color[32][96]; static int index_color = 0; char color_fg[32], color_bg[32]; char *pos_delim, *str_fg, *pos_bg, *error, *color_attr; const char *ptr_color_name; /* attribute or other color name (GUI dependent) */ index_color = (index_color + 1) % 32; color[index_color][0] = '\0'; if (!color_name || !color_name[0]) return color[index_color]; /* read extra attributes (bold, ..) */ color_attr = NULL; ptr_color_name = color_name; while (gui_color_attr_get_flag (ptr_color_name[0]) > 0) { ptr_color_name++; } if (ptr_color_name != color_name) { color_attr = string_strndup (color_name, ptr_color_name - color_name); } if (string_strcasecmp (ptr_color_name, "reset") == 0) { snprintf (color[index_color], sizeof (color[index_color]), "%c", GUI_COLOR_RESET_CHAR); } else if (string_strcasecmp (ptr_color_name, "resetcolor") == 0) { snprintf (color[index_color], sizeof (color[index_color]), "%c%c", GUI_COLOR_COLOR_CHAR, GUI_COLOR_RESET_CHAR); } else if (string_strcasecmp (ptr_color_name, "emphasis") == 0) { snprintf (color[index_color], sizeof (color[index_color]), "%c%c", GUI_COLOR_COLOR_CHAR, GUI_COLOR_EMPHASIS_CHAR); } else if (string_strcasecmp (ptr_color_name, "bold") == 0) { snprintf (color[index_color], sizeof (color[index_color]), "%c%c", GUI_COLOR_SET_ATTR_CHAR, GUI_COLOR_ATTR_BOLD_CHAR); } else if (string_strcasecmp (ptr_color_name, "-bold") == 0) { snprintf (color[index_color], sizeof (color[index_color]), "%c%c", GUI_COLOR_REMOVE_ATTR_CHAR, GUI_COLOR_ATTR_BOLD_CHAR); } else if (string_strcasecmp (ptr_color_name, "reverse") == 0) { snprintf (color[index_color], sizeof (color[index_color]), "%c%c", GUI_COLOR_SET_ATTR_CHAR, GUI_COLOR_ATTR_REVERSE_CHAR); } else if (string_strcasecmp (ptr_color_name, "-reverse") == 0) { snprintf (color[index_color], sizeof (color[index_color]), "%c%c", GUI_COLOR_REMOVE_ATTR_CHAR, GUI_COLOR_ATTR_REVERSE_CHAR); } else if (string_strcasecmp (ptr_color_name, "italic") == 0) { snprintf (color[index_color], sizeof (color[index_color]), "%c%c", GUI_COLOR_SET_ATTR_CHAR, GUI_COLOR_ATTR_ITALIC_CHAR); } else if (string_strcasecmp (ptr_color_name, "-italic") == 0) { snprintf (color[index_color], sizeof (color[index_color]), "%c%c", GUI_COLOR_REMOVE_ATTR_CHAR, GUI_COLOR_ATTR_ITALIC_CHAR); } else if (string_strcasecmp (ptr_color_name, "underline") == 0) { snprintf (color[index_color], sizeof (color[index_color]), "%c%c", GUI_COLOR_SET_ATTR_CHAR, GUI_COLOR_ATTR_UNDERLINE_CHAR); } else if (string_strcasecmp (ptr_color_name, "-underline") == 0) { snprintf (color[index_color], sizeof (color[index_color]), "%c%c", GUI_COLOR_REMOVE_ATTR_CHAR, GUI_COLOR_ATTR_UNDERLINE_CHAR); } else if (string_strcasecmp (ptr_color_name, "bar_fg") == 0) { snprintf (color[index_color], sizeof (color[index_color]), "%c%c%c", GUI_COLOR_COLOR_CHAR, GUI_COLOR_BAR_CHAR, GUI_COLOR_BAR_FG_CHAR); } else if (string_strcasecmp (ptr_color_name, "bar_delim") == 0) { snprintf (color[index_color], sizeof (color[index_color]), "%c%c%c", GUI_COLOR_COLOR_CHAR, GUI_COLOR_BAR_CHAR, GUI_COLOR_BAR_DELIM_CHAR); } else if (string_strcasecmp (ptr_color_name, "bar_bg") == 0) { snprintf (color[index_color], sizeof (color[index_color]), "%c%c%c", GUI_COLOR_COLOR_CHAR, GUI_COLOR_BAR_CHAR, GUI_COLOR_BAR_BG_CHAR); } else { /* custom color name (GUI dependent) */ fg_term = -1; bg_term = -1; fg = -1; bg = -1; color_fg[0] = '\0'; color_bg[0] = '\0'; pos_delim = strchr (ptr_color_name, ','); if (!pos_delim) pos_delim = strchr (ptr_color_name, ':'); if (pos_delim) { if (pos_delim == ptr_color_name) str_fg = NULL; else str_fg = string_strndup (ptr_color_name, pos_delim - ptr_color_name); pos_bg = pos_delim + 1; } else { str_fg = strdup (ptr_color_name); pos_bg = NULL; } if (str_fg) { fg_term = gui_color_palette_get_alias (str_fg); if (fg_term < 0) { error = NULL; term_color = (int)strtol (str_fg, &error, 10); if (error && !error[0]) { fg_term = term_color; if (fg_term < 0) fg_term = 0; else if (fg_term > GUI_COLOR_EXTENDED_MAX) fg_term = GUI_COLOR_EXTENDED_MAX; } else fg = gui_color_search (str_fg); } } if (pos_bg) { bg_term = gui_color_palette_get_alias (pos_bg); if (bg_term < 0) { error = NULL; term_color = (int)strtol (pos_bg, &error, 10); if (error && !error[0]) { bg_term = term_color; if (bg_term < 0) bg_term = 0; else if (bg_term > GUI_COLOR_EXTENDED_MAX) bg_term = GUI_COLOR_EXTENDED_MAX; } else bg = gui_color_search (pos_bg); } } if (fg_term >= 0) { snprintf (color_fg, sizeof (color_fg), "%c%s%05d", GUI_COLOR_EXTENDED_CHAR, (color_attr) ? color_attr : "", fg_term); } else if (fg >= 0) { snprintf (color_fg, sizeof (color_fg), "%s%02d", (color_attr) ? color_attr : "", fg); } if (bg_term >= 0) { snprintf (color_bg, sizeof (color_bg), "%c%05d", GUI_COLOR_EXTENDED_CHAR, bg_term); } else if (bg >= 0) { snprintf (color_bg, sizeof (color_bg), "%02d", bg); } if (color_fg[0] && color_bg[0]) { snprintf (color[index_color], sizeof (color[index_color]), "%c%c%s,%s", GUI_COLOR_COLOR_CHAR, GUI_COLOR_FG_BG_CHAR, color_fg, color_bg); } else if (color_fg[0]) { snprintf (color[index_color], sizeof (color[index_color]), "%c%c%s", GUI_COLOR_COLOR_CHAR, GUI_COLOR_FG_CHAR, color_fg); } else if (color_bg[0]) { snprintf (color[index_color], sizeof (color[index_color]), "%c%c%s", GUI_COLOR_COLOR_CHAR, GUI_COLOR_BG_CHAR, color_bg); } if (str_fg) free (str_fg); } if (color_attr) free (color_attr); return color[index_color]; } /* * Converts a terminal color to its RGB value. * * Returns a RGB color as integer. */ int gui_color_convert_term_to_rgb (int color) { if ((color < 0) || (color > 255)) return 0; return gui_color_term256[color]; } /* * Converts a RGB color to the closest terminal color. * * Argument "limit" is the number of colors to check in the table of terminal * colors (starting from 0). So for example 256 will return any of the 256 * colors, 16 will return a color between 0 and 15. * * Returns the closest terminal color (0-255). */ int gui_color_convert_rgb_to_term (int rgb, int limit) { int i, r1, g1, b1, r2, g2, b2, diff, best_diff, best_color; r1 = rgb >> 16; g1 = (rgb >> 8) & 0xFF; b1 = rgb & 0xFF; best_diff = INT_MAX; best_color = 0; for (i = 0; i < limit; i++) { r2 = gui_color_term256[i] >> 16; g2 = (gui_color_term256[i] >> 8) & 0xFF; b2 = gui_color_term256[i] & 0xFF; diff = ((r2 - r1) * (r2 - r1)) + ((g2 - g1) * (g2 - g1)) + ((b2 - b1) * (b2 - b1)); /* exact match! */ if (diff == 0) return i; if (diff < best_diff) { best_color = i; best_diff = diff; } } /* return the closest color */ return best_color; } /* * Removes WeeChat color codes from a message. * * If replacement is not NULL and not empty, it is used to replace color codes * by first char of replacement (and next chars in string are NOT removed). * If replacement is NULL or empty, color codes are removed, with following * chars if they are related to color code. * * Note: result must be freed after use. */ char * gui_color_decode (const char *string, const char *replacement) { const unsigned char *ptr_string; unsigned char *out; int out_length, out_pos, length; if (!string) return NULL; out_length = (strlen ((char *)string) * 2) + 1; out = malloc (out_length); if (!out) return NULL; ptr_string = (unsigned char *)string; out_pos = 0; while (ptr_string && ptr_string[0] && (out_pos < out_length - 1)) { switch (ptr_string[0]) { case GUI_COLOR_COLOR_CHAR: ptr_string++; switch (ptr_string[0]) { case GUI_COLOR_FG_CHAR: ptr_string++; if (ptr_string[0] == GUI_COLOR_EXTENDED_CHAR) { ptr_string++; while (gui_color_attr_get_flag (ptr_string[0]) > 0) { ptr_string++; } if (ptr_string[0] && ptr_string[1] && ptr_string[2] && ptr_string[3] && ptr_string[4]) { ptr_string += 5; } } else { while (gui_color_attr_get_flag (ptr_string[0]) > 0) { ptr_string++; } if (ptr_string[0] && ptr_string[1]) ptr_string += 2; } break; case GUI_COLOR_BG_CHAR: ptr_string++; if (ptr_string[0] == GUI_COLOR_EXTENDED_CHAR) { ptr_string++; if (ptr_string[0] && ptr_string[1] && ptr_string[2] && ptr_string[3] && ptr_string[4]) { ptr_string += 5; } } else { if (ptr_string[0] && ptr_string[1]) ptr_string += 2; } break; case GUI_COLOR_FG_BG_CHAR: ptr_string++; if (ptr_string[0] == GUI_COLOR_EXTENDED_CHAR) { ptr_string++; while (gui_color_attr_get_flag (ptr_string[0]) > 0) { ptr_string++; } if (ptr_string[0] && ptr_string[1] && ptr_string[2] && ptr_string[3] && ptr_string[4]) { ptr_string += 5; } } else { while (gui_color_attr_get_flag (ptr_string[0]) > 0) { ptr_string++; } if (ptr_string[0] && ptr_string[1]) ptr_string += 2; } if (ptr_string[0] == ',') { if (ptr_string[1] == GUI_COLOR_EXTENDED_CHAR) { if (ptr_string[2] && ptr_string[3] && ptr_string[4] && ptr_string[5] && ptr_string[6]) { ptr_string += 7; } } else { if (ptr_string[1] && ptr_string[2]) ptr_string += 3; } } break; case GUI_COLOR_EXTENDED_CHAR: if ((isdigit (ptr_string[1])) && (isdigit (ptr_string[2])) && (isdigit (ptr_string[3])) && (isdigit (ptr_string[4])) && (isdigit (ptr_string[5]))) ptr_string += 6; break; case GUI_COLOR_EMPHASIS_CHAR: ptr_string++; break; case GUI_COLOR_BAR_CHAR: ptr_string++; switch (ptr_string[0]) { case GUI_COLOR_BAR_FG_CHAR: case GUI_COLOR_BAR_BG_CHAR: case GUI_COLOR_BAR_DELIM_CHAR: case GUI_COLOR_BAR_START_INPUT_CHAR: case GUI_COLOR_BAR_START_INPUT_HIDDEN_CHAR: case GUI_COLOR_BAR_MOVE_CURSOR_CHAR: case GUI_COLOR_BAR_START_ITEM: case GUI_COLOR_BAR_START_LINE_ITEM: ptr_string++; break; } break; case GUI_COLOR_RESET_CHAR: ptr_string++; break; default: if (isdigit (ptr_string[0]) && isdigit (ptr_string[1])) ptr_string += 2; break; } if (replacement && replacement[0]) { out[out_pos] = replacement[0]; out_pos++; } break; case GUI_COLOR_SET_ATTR_CHAR: case GUI_COLOR_REMOVE_ATTR_CHAR: ptr_string++; if (ptr_string[0]) ptr_string++; if (replacement && replacement[0]) { out[out_pos] = replacement[0]; out_pos++; } break; case GUI_COLOR_RESET_CHAR: ptr_string++; if (replacement && replacement[0]) { out[out_pos] = replacement[0]; out_pos++; } break; default: length = utf8_char_size ((char *)ptr_string); if (length == 0) length = 1; memcpy (out + out_pos, ptr_string, length); out_pos += length; ptr_string += length; break; } } out[out_pos] = '\0'; return (char *)out; } /* * Converts ANSI color codes to WeeChat colors (or removes them). * * This callback is called by gui_color_decode_ansi, it must not be called * directly. */ char * gui_color_decode_ansi_cb (void *data, const char *text) { char *text2, **items, *output, str_color[128]; int i, keep_colors, length, num_items, value; keep_colors = (data) ? 1 : 0;; /* if we don't keep colors of if text is empty, just return empty string */ if (!keep_colors || !text || !text[0]) return strdup (""); /* only sequences ending with 'm' are used, the others are discarded */ length = strlen (text); if (text[length - 1] != 'm') return strdup (""); /* sequence "\33[m" resets color */ if (length < 4) return strdup (gui_color_get_custom ("reset")); text2 = NULL; items = NULL; output = NULL; /* extract text between "\33[" and "m" */ text2 = string_strndup (text + 2, length - 3); if (!text2) goto end; items = string_split (text2, ";", 0, 0, &num_items); if (!items) goto end; output = malloc ((32 * num_items) + 1); if (!output) goto end; output[0] = '\0'; for (i = 0; i < num_items; i++) { value = atoi (items[i]); switch (value) { case 0: /* reset */ strcat (output, gui_color_get_custom ("reset")); break; case 1: /* bold */ strcat (output, gui_color_get_custom ("bold")); break; case 2: /* remove bold */ case 21: case 22: strcat (output, gui_color_get_custom ("-bold")); break; case 3: /* italic */ strcat (output, gui_color_get_custom ("italic")); break; case 4: /* underline */ strcat (output, gui_color_get_custom ("underline")); break; case 23: /* remove italic */ strcat (output, gui_color_get_custom ("-italic")); break; case 24: /* remove underline */ strcat (output, gui_color_get_custom ("-underline")); break; case 30: /* text color */ case 31: case 32: case 33: case 34: case 35: case 36: case 37: strcat (output, gui_color_get_custom (gui_color_ansi[value - 30])); break; case 38: /* text color */ if (i + 1 < num_items) { switch (atoi (items[i + 1])) { case 2: /* RGB color */ if (i + 4 < num_items) { snprintf (str_color, sizeof (str_color), "|%d", gui_color_convert_rgb_to_term ( (atoi (items[i + 2]) << 16) | (atoi (items[i + 3]) << 8) | atoi (items[i + 4]), 256)); strcat (output, gui_color_get_custom (str_color)); i += 4; } break; case 5: /* terminal color (0-255) */ if (i + 2 < num_items) { snprintf (str_color, sizeof (str_color), "|%d", atoi (items[i + 2])); strcat (output, gui_color_get_custom (str_color)); i += 2; } break; } } break; case 39: /* default text color */ strcat (output, gui_color_get_custom ("default")); break; case 40: /* background color */ case 41: case 42: case 43: case 44: case 45: case 46: case 47: snprintf (str_color, sizeof (str_color), "|,%s", gui_color_ansi[value - 40]); strcat (output, gui_color_get_custom (str_color)); break; case 48: /* background color */ if (i + 1 < num_items) { switch (atoi (items[i + 1])) { case 2: /* RGB color */ if (i + 4 < num_items) { snprintf (str_color, sizeof (str_color), "|,%d", gui_color_convert_rgb_to_term ( (atoi (items[i + 2]) << 16) | (atoi (items[i + 3]) << 8) | atoi (items[i + 4]), 256)); strcat (output, gui_color_get_custom (str_color)); i += 4; } break; case 5: /* terminal color (0-255) */ if (i + 2 < num_items) { snprintf (str_color, sizeof (str_color), "|,%d", atoi (items[i + 2])); strcat (output, gui_color_get_custom (str_color)); i += 2; } break; } } break; case 49: /* default background color */ strcat (output, gui_color_get_custom (",default")); break; case 90: /* text color (bright) */ case 91: case 92: case 93: case 94: case 95: case 96: case 97: strcat (output, gui_color_get_custom (gui_color_ansi[value - 90 + 8])); break; case 100: /* background color (bright) */ case 101: case 102: case 103: case 104: case 105: case 106: case 107: snprintf (str_color, sizeof (str_color), "|,%s", gui_color_ansi[value - 100 + 8]); strcat (output, gui_color_get_custom (str_color)); break; } } end: if (items) string_free_split (items); if (text2) free (text2); return (output) ? output : strdup (""); } /* * Converts ANSI color codes to WeeChat colors (or removes them). * * Note: result must be freed after use. */ char * gui_color_decode_ansi (const char *string, int keep_colors) { /* allocate/compile regex if needed (first call) */ if (!gui_color_regex_ansi) { gui_color_regex_ansi = malloc (sizeof (*gui_color_regex_ansi)); if (!gui_color_regex_ansi) return NULL; if (string_regcomp (gui_color_regex_ansi, GUI_COLOR_REGEX_ANSI_DECODE, REG_EXTENDED) != 0) { free (gui_color_regex_ansi); gui_color_regex_ansi = NULL; return NULL; } } return string_replace_regex (string, gui_color_regex_ansi, "$0", '$', &gui_color_decode_ansi_cb, (void *)((unsigned long)keep_colors)); } /* * Emphasizes a string or regular expression in a string (which can contain * colors). * * Argument "case_sensitive" is used only for "search", if the "regex" is NULL. * * Returns string with the search string/regex emphasized, NULL if error. * * Note: result must be freed after use. */ char * gui_color_emphasize (const char *string, const char *search, int case_sensitive, regex_t *regex) { regmatch_t regex_match; char *result, *result2, *string_no_color; const char *ptr_string, *ptr_no_color, *color_emphasis, *pos; int rc, length_search, length_emphasis, length_result; int pos1, pos2, real_pos1, real_pos2, count_emphasis; /* string is required */ if (!string) return NULL; /* search or regex is required */ if (!search && !regex) return NULL; color_emphasis = gui_color_get_custom ("emphasis"); if (!color_emphasis) return NULL; length_emphasis = strlen (color_emphasis); /* * allocate space for 8 emphasized strings (8 before + 8 after = 16); * more space will be allocated later (if there are more than 8 emphasized * strings) */ length_result = strlen (string) + (length_emphasis * 2 * 8) + 1; result = malloc (length_result); if (!result) return NULL; result[0] = '\0'; /* * build a string without color codes to search in this one (then with the * position of text found, we will retrieve position in original string, * which can contain color codes) */ string_no_color = gui_color_decode (string, NULL); if (!string_no_color) { free (result); return NULL; } length_search = (search) ? strlen (search) : 0; ptr_string = string; ptr_no_color = string_no_color; count_emphasis = 0; while (ptr_no_color && ptr_no_color[0]) { if (regex) { /* search next match using the regex */ regex_match.rm_so = -1; rc = regexec (regex, ptr_no_color, 1, ®ex_match, 0); /* * no match found: exit the loop (if rm_no == 0, it is an empty * match at beginning of string: we consider there is no match, to * prevent an infinite loop) */ if ((rc != 0) || (regex_match.rm_so < 0) || (regex_match.rm_eo <= 0)) { strcat (result, ptr_string); break; } pos1 = regex_match.rm_so; pos2 = regex_match.rm_eo; } else { /* search next match in the string */ if (case_sensitive) pos = strstr (ptr_no_color, search); else pos = string_strcasestr (ptr_no_color, search); if (!pos) { strcat (result, ptr_string); break; } pos1 = pos - ptr_no_color; pos2 = pos1 + length_search; if (pos2 <= 0) { strcat (result, ptr_string); break; } } /* * find the position of match in the original string (which can contain * color codes) */ real_pos1 = gui_chat_string_real_pos (ptr_string, gui_chat_string_pos (ptr_no_color, pos1), 0); real_pos2 = gui_chat_string_real_pos (ptr_string, gui_chat_string_pos (ptr_no_color, pos2), 0); /* * concatenate following strings to the result: * - beginning of string (before match) * - emphasis color code * - the matching string * - emphasis color code */ if (real_pos1 > 0) strncat (result, ptr_string, real_pos1); strcat (result, color_emphasis); strncat (result, ptr_string + real_pos1, real_pos2 - real_pos1); strcat (result, color_emphasis); /* restart next loop after the matching string */ ptr_string += real_pos2; ptr_no_color += pos2; /* check if we should allocate more space for emphasis color codes */ count_emphasis++; if (count_emphasis == 8) { /* allocate more space for emphasis color codes */ length_result += (length_emphasis * 2 * 8); result2 = realloc (result, length_result); if (!result2) { free (result); return NULL; } result = result2; count_emphasis = 0; } } free (string_no_color); return result; } /* * Frees a color. */ void gui_color_free (struct t_gui_color *color) { if (!color) return; if (color->string) free (color->string); free (color); } /* * Callback called to free value in hashtable when item in hashtable is removed. */ void gui_color_palette_free_value_cb (struct t_hashtable *hashtable, const void *key, void *value) { struct t_gui_color_palette *color_palette; /* make C compiler happy */ (void) hashtable; (void) key; color_palette = (struct t_gui_color_palette *)value; if (color_palette) gui_color_palette_free (color_palette); } /* * Allocates hashtables and lists for palette. */ void gui_color_palette_alloc_structs () { if (!gui_color_hash_palette_color) { gui_color_hash_palette_color = hashtable_new ( 32, WEECHAT_HASHTABLE_STRING, WEECHAT_HASHTABLE_POINTER, NULL, NULL); gui_color_hash_palette_color->callback_free_value = &gui_color_palette_free_value_cb; } if (!gui_color_hash_palette_alias) { gui_color_hash_palette_alias = hashtable_new ( 32, WEECHAT_HASHTABLE_STRING, WEECHAT_HASHTABLE_INTEGER, NULL, NULL); } if (!gui_color_list_with_alias) { gui_color_list_with_alias = weelist_new (); } } /* * Gets color pair number with alias. * * Returns -1 if alias is not found. */ int gui_color_palette_get_alias (const char *alias) { int *ptr_number; if (gui_color_hash_palette_alias) { ptr_number = hashtable_get (gui_color_hash_palette_alias, alias); if (ptr_number) return *ptr_number; } /* alias not found */ return -1; } /* * Gets a color palette with number. */ struct t_gui_color_palette * gui_color_palette_get (int number) { char str_number[64]; snprintf (str_number, sizeof (str_number), "%d", number); return hashtable_get (gui_color_hash_palette_color, str_number); } /* * Adds a color in palette. */ void gui_color_palette_add (int number, const char *value) { struct t_gui_color_palette *new_color_palette; char str_number[64]; gui_color_palette_alloc_structs (); new_color_palette = gui_color_palette_new (number, value); if (!new_color_palette) return; snprintf (str_number, sizeof (str_number), "%d", number); hashtable_set (gui_color_hash_palette_color, str_number, new_color_palette); gui_color_palette_build_aliases (); if (gui_init_ok) gui_color_buffer_display (); } /* * Removes a color in palette. */ void gui_color_palette_remove (int number) { struct t_gui_color_palette *ptr_color_palette; char str_number[64]; gui_color_palette_alloc_structs (); snprintf (str_number, sizeof (str_number), "%d", number); ptr_color_palette = hashtable_get (gui_color_hash_palette_color, str_number); if (ptr_color_palette) { hashtable_remove (gui_color_hash_palette_color, str_number); gui_color_palette_build_aliases (); if (gui_init_ok) gui_color_buffer_display (); } } /* * Frees hashtables and lists for palette. */ void gui_color_palette_free_structs () { if (gui_color_hash_palette_color) hashtable_free (gui_color_hash_palette_color); if (gui_color_hash_palette_alias) hashtable_free (gui_color_hash_palette_alias); if (gui_color_list_with_alias) weelist_free (gui_color_list_with_alias); } /* * Initializes colors. */ void gui_color_init () { int i; for (i = 0; i < GUI_COLOR_NUM_COLORS; i++) { gui_color[i] = NULL; } } /* * Ends GUI colors. */ void gui_color_end () { int i; for (i = 0; i < GUI_COLOR_NUM_COLORS; i++) { gui_color_free (gui_color[i]); gui_color[i] = NULL; } gui_color_palette_free_structs (); gui_color_free_vars (); if (gui_color_regex_ansi) { regfree (gui_color_regex_ansi); free (gui_color_regex_ansi); gui_color_regex_ansi = NULL; } }