colour.c

   1 /* $OpenBSD$ */
   2
   3 /*
   4  * Copyright (c) 2008 Nicholas Marriott <nicholas.marriott@gmail.com>
   5  * Copyright (c) 2016 Avi Halachmi <avihpit@yahoo.com>
   6  *
   7  * Permission to use, copy, modify, and distribute this software for any
   8  * purpose with or without fee is hereby granted, provided that the above
   9  * copyright notice and this permission notice appear in all copies.
  10  *
  11  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  12  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  13  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  14  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  15  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
  16  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
  17  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  18  */
  19
  20 #include <sys/types.h>
  21
  22 #include <ctype.h>
  23 #include <stdlib.h>
  24 #include <string.h>
  25 #include <math.h>
  26
  27 #include "tmux.h"
  28
  29 static int
  30 colour_dist_sq(int R, int G, int B, int r, int g, int b)
  31 {
  32         return ((R - r) * (R - r) + (G - g) * (G - g) + (B - b) * (B - b));
  33 }
  34
  35 static int
  36 colour_to_6cube(int v)
  37 {
  38         if (v < 48)
  39                 return (0);
  40         if (v < 114)
  41                 return (1);
  42         return ((v - 35) / 40);
  43 }
  44
  45 /*
  46  * Convert an RGB triplet to the xterm(1) 256 colour palette.
  47  *
  48  * xterm provides a 6x6x6 colour cube (16 - 231) and 24 greys (232 - 255). We
  49  * map our RGB colour to the closest in the cube, also work out the closest
  50  * grey, and use the nearest of the two.
  51  *
  52  * Note that the xterm has much lower resolution for darker colours (they are
  53  * not evenly spread out), so our 6 levels are not evenly spread: 0x0, 0x5f
  54  * (95), 0x87 (135), 0xaf (175), 0xd7 (215) and 0xff (255). Greys are more
  55  * evenly spread (8, 18, 28 ... 238).
  56  */
  57 int
  58 colour_find_rgb(u_char r, u_char g, u_char b)
  59 {
  60         static const int        q2c[6] = { 0x00, 0x5f, 0x87, 0xaf, 0xd7, 0xff };
  61         int                     qr, qg, qb, cr, cg, cb, d, idx;
  62         int                     grey_avg, grey_idx, grey;
  63
  64         /* Map RGB to 6x6x6 cube. */
  65         qr = colour_to_6cube(r); cr = q2c[qr];
  66         qg = colour_to_6cube(g); cg = q2c[qg];
  67         qb = colour_to_6cube(b); cb = q2c[qb];
  68
  69         /* If we have hit the colour exactly, return early. */
  70         if (cr == r && cg == g && cb == b)
  71                 return ((16 + (36 * qr) + (6 * qg) + qb) | COLOUR_FLAG_256);
  72
  73         /* Work out the closest grey (average of RGB). */
  74         grey_avg = (r + g + b) / 3;
  75         if (grey_avg > 238)
  76                 grey_idx = 23;
  77         else
  78                 grey_idx = (grey_avg - 3) / 10;
  79         grey = 8 + (10 * grey_idx);
  80
  81         /* Is grey or 6x6x6 colour closest? */
  82         d = colour_dist_sq(cr, cg, cb, r, g, b);
  83         if (colour_dist_sq(grey, grey, grey, r, g, b) < d)
  84                 idx = 232 + grey_idx;
  85         else
  86                 idx = 16 + (36 * qr) + (6 * qg) + qb;
  87         return (idx | COLOUR_FLAG_256);
  88 }
  89
  90 /* Join RGB into a colour. */
  91 int
  92 colour_join_rgb(u_char r, u_char g, u_char b)
  93 {
  94         return ((((int)((r) & 0xff)) << 16) |
  95             (((int)((g) & 0xff)) << 8) |
  96             (((int)((b) & 0xff))) | COLOUR_FLAG_RGB);
  97 }
  98
  99 /* Split colour into RGB. */
 100 void
 101 colour_split_rgb(int c, u_char *r, u_char *g, u_char *b)
 102 {
 103         *r = (c >> 16) & 0xff;
 104         *g = (c >> 8) & 0xff;
 105         *b = c & 0xff;
 106 }
 107
 108 /* Convert colour to a string. */
 109 const char *
 110 colour_tostring(int c)
 111 {
 112         static char     s[32];
 113         u_char          r, g, b;
 114
 115         if (c == -1)
 116                 return ("invalid");
 117
 118         if (c & COLOUR_FLAG_RGB) {
 119                 colour_split_rgb(c, &r, &g, &b);
 120                 xsnprintf(s, sizeof s, "#%02x%02x%02x", r, g, b);
 121                 return (s);
 122         }
 123
 124         if (c & COLOUR_FLAG_256) {
 125                 xsnprintf(s, sizeof s, "colour%u", c & 0xff);
 126                 return (s);
 127         }
 128
 129         switch (c) {
 130         case 0:
 131                 return ("black");
 132         case 1:
 133                 return ("red");
 134         case 2:
 135                 return ("green");
 136         case 3:
 137                 return ("yellow");
 138         case 4:
 139                 return ("blue");
 140         case 5:
 141                 return ("magenta");
 142         case 6:
 143                 return ("cyan");
 144         case 7:
 145                 return ("white");
 146         case 8:
 147                 return ("default");
 148         case 9:
 149                 return ("terminal");
 150         case 90:
 151                 return ("brightblack");
 152         case 91:
 153                 return ("brightred");
 154         case 92:
 155                 return ("brightgreen");
 156         case 93:
 157                 return ("brightyellow");
 158         case 94:
 159                 return ("brightblue");
 160         case 95:
 161                 return ("brightmagenta");
 162         case 96:
 163                 return ("brightcyan");
 164         case 97:
 165                 return ("brightwhite");
 166         }
 167         return ("invalid");
 168 }
 169
 170 /* Convert colour from string. */
 171 int
 172 colour_fromstring(const char *s)
 173 {
 174         const char      *errstr;
 175         const char      *cp;
 176         int              n;
 177         u_char           r, g, b;
 178
 179         if (*s == '#' && strlen(s) == 7) {
 180                 for (cp = s + 1; isxdigit((u_char) *cp); cp++)
 181                         ;
 182                 if (*cp != '\0')
 183                         return (-1);
 184                 n = sscanf(s + 1, "%2hhx%2hhx%2hhx", &r, &g, &b);
 185                 if (n != 3)
 186                         return (-1);
 187                 return (colour_join_rgb(r, g, b));
 188         }
 189
 190         if (strncasecmp(s, "colour", (sizeof "colour") - 1) == 0) {
 191                 n = strtonum(s + (sizeof "colour") - 1, 0, 255, &errstr);
 192                 if (errstr != NULL)
 193                         return (-1);
 194                 return (n | COLOUR_FLAG_256);
 195         }
 196         if (strncasecmp(s, "color", (sizeof "color") - 1) == 0) {
 197                 n = strtonum(s + (sizeof "color") - 1, 0, 255, &errstr);
 198                 if (errstr != NULL)
 199                         return (-1);
 200                 return (n | COLOUR_FLAG_256);
 201         }
 202
 203         if (strcasecmp(s, "default") == 0)
 204                 return (8);
 205         if (strcasecmp(s, "terminal") == 0)
 206                 return (9);
 207
 208         if (strcasecmp(s, "black") == 0 || strcmp(s, "0") == 0)
 209                 return (0);
 210         if (strcasecmp(s, "red") == 0 || strcmp(s, "1") == 0)
 211                 return (1);
 212         if (strcasecmp(s, "green") == 0 || strcmp(s, "2") == 0)
 213                 return (2);
 214         if (strcasecmp(s, "yellow") == 0 || strcmp(s, "3") == 0)
 215                 return (3);
 216         if (strcasecmp(s, "blue") == 0 || strcmp(s, "4") == 0)
 217                 return (4);
 218         if (strcasecmp(s, "magenta") == 0 || strcmp(s, "5") == 0)
 219                 return (5);
 220         if (strcasecmp(s, "cyan") == 0 || strcmp(s, "6") == 0)
 221                 return (6);
 222         if (strcasecmp(s, "white") == 0 || strcmp(s, "7") == 0)
 223                 return (7);
 224         if (strcasecmp(s, "brightblack") == 0 || strcmp(s, "90") == 0)
 225                 return (90);
 226         if (strcasecmp(s, "brightred") == 0 || strcmp(s, "91") == 0)
 227                 return (91);
 228         if (strcasecmp(s, "brightgreen") == 0 || strcmp(s, "92") == 0)
 229                 return (92);
 230         if (strcasecmp(s, "brightyellow") == 0 || strcmp(s, "93") == 0)
 231                 return (93);
 232         if (strcasecmp(s, "brightblue") == 0 || strcmp(s, "94") == 0)
 233                 return (94);
 234         if (strcasecmp(s, "brightmagenta") == 0 || strcmp(s, "95") == 0)
 235                 return (95);
 236         if (strcasecmp(s, "brightcyan") == 0 || strcmp(s, "96") == 0)
 237                 return (96);
 238         if (strcasecmp(s, "brightwhite") == 0 || strcmp(s, "97") == 0)
 239                 return (97);
 240         return (colour_byname(s));
 241 }
 242
 243 /* Convert 256 colour to RGB colour. */
 244 int
 245 colour_256toRGB(int c)
 246 {
 247         static const int table[256] = {
 248                 0x000000, 0x800000, 0x008000, 0x808000,
 249                 0x000080, 0x800080, 0x008080, 0xc0c0c0,
 250                 0x808080, 0xff0000, 0x00ff00, 0xffff00,
 251                 0x0000ff, 0xff00ff, 0x00ffff, 0xffffff,
 252                 0x000000, 0x00005f, 0x000087, 0x0000af,
 253                 0x0000d7, 0x0000ff, 0x005f00, 0x005f5f,
 254                 0x005f87, 0x005faf, 0x005fd7, 0x005fff,
 255                 0x008700, 0x00875f, 0x008787, 0x0087af,
 256                 0x0087d7, 0x0087ff, 0x00af00, 0x00af5f,
 257                 0x00af87, 0x00afaf, 0x00afd7, 0x00afff,
 258                 0x00d700, 0x00d75f, 0x00d787, 0x00d7af,
 259                 0x00d7d7, 0x00d7ff, 0x00ff00, 0x00ff5f,
 260                 0x00ff87, 0x00ffaf, 0x00ffd7, 0x00ffff,
 261                 0x5f0000, 0x5f005f, 0x5f0087, 0x5f00af,
 262                 0x5f00d7, 0x5f00ff, 0x5f5f00, 0x5f5f5f,
 263                 0x5f5f87, 0x5f5faf, 0x5f5fd7, 0x5f5fff,
 264                 0x5f8700, 0x5f875f, 0x5f8787, 0x5f87af,
 265                 0x5f87d7, 0x5f87ff, 0x5faf00, 0x5faf5f,
 266                 0x5faf87, 0x5fafaf, 0x5fafd7, 0x5fafff,
 267                 0x5fd700, 0x5fd75f, 0x5fd787, 0x5fd7af,
 268                 0x5fd7d7, 0x5fd7ff, 0x5fff00, 0x5fff5f,
 269                 0x5fff87, 0x5fffaf, 0x5fffd7, 0x5fffff,
 270                 0x870000, 0x87005f, 0x870087, 0x8700af,
 271                 0x8700d7, 0x8700ff, 0x875f00, 0x875f5f,
 272                 0x875f87, 0x875faf, 0x875fd7, 0x875fff,
 273                 0x878700, 0x87875f, 0x878787, 0x8787af,
 274                 0x8787d7, 0x8787ff, 0x87af00, 0x87af5f,
 275                 0x87af87, 0x87afaf, 0x87afd7, 0x87afff,
 276                 0x87d700, 0x87d75f, 0x87d787, 0x87d7af,
 277                 0x87d7d7, 0x87d7ff, 0x87ff00, 0x87ff5f,
 278                 0x87ff87, 0x87ffaf, 0x87ffd7, 0x87ffff,
 279                 0xaf0000, 0xaf005f, 0xaf0087, 0xaf00af,
 280                 0xaf00d7, 0xaf00ff, 0xaf5f00, 0xaf5f5f,
 281                 0xaf5f87, 0xaf5faf, 0xaf5fd7, 0xaf5fff,
 282                 0xaf8700, 0xaf875f, 0xaf8787, 0xaf87af,
 283                 0xaf87d7, 0xaf87ff, 0xafaf00, 0xafaf5f,
 284                 0xafaf87, 0xafafaf, 0xafafd7, 0xafafff,
 285                 0xafd700, 0xafd75f, 0xafd787, 0xafd7af,
 286                 0xafd7d7, 0xafd7ff, 0xafff00, 0xafff5f,
 287                 0xafff87, 0xafffaf, 0xafffd7, 0xafffff,
 288                 0xd70000, 0xd7005f, 0xd70087, 0xd700af,
 289                 0xd700d7, 0xd700ff, 0xd75f00, 0xd75f5f,
 290                 0xd75f87, 0xd75faf, 0xd75fd7, 0xd75fff,
 291                 0xd78700, 0xd7875f, 0xd78787, 0xd787af,
 292                 0xd787d7, 0xd787ff, 0xd7af00, 0xd7af5f,
 293                 0xd7af87, 0xd7afaf, 0xd7afd7, 0xd7afff,
 294                 0xd7d700, 0xd7d75f, 0xd7d787, 0xd7d7af,
 295                 0xd7d7d7, 0xd7d7ff, 0xd7ff00, 0xd7ff5f,
 296                 0xd7ff87, 0xd7ffaf, 0xd7ffd7, 0xd7ffff,
 297                 0xff0000, 0xff005f, 0xff0087, 0xff00af,
 298                 0xff00d7, 0xff00ff, 0xff5f00, 0xff5f5f,
 299                 0xff5f87, 0xff5faf, 0xff5fd7, 0xff5fff,
 300                 0xff8700, 0xff875f, 0xff8787, 0xff87af,
 301                 0xff87d7, 0xff87ff, 0xffaf00, 0xffaf5f,
 302                 0xffaf87, 0xffafaf, 0xffafd7, 0xffafff,
 303                 0xffd700, 0xffd75f, 0xffd787, 0xffd7af,
 304                 0xffd7d7, 0xffd7ff, 0xffff00, 0xffff5f,
 305                 0xffff87, 0xffffaf, 0xffffd7, 0xffffff,
 306                 0x080808, 0x121212, 0x1c1c1c, 0x262626,
 307                 0x303030, 0x3a3a3a, 0x444444, 0x4e4e4e,
 308                 0x585858, 0x626262, 0x6c6c6c, 0x767676,
 309                 0x808080, 0x8a8a8a, 0x949494, 0x9e9e9e,
 310                 0xa8a8a8, 0xb2b2b2, 0xbcbcbc, 0xc6c6c6,
 311                 0xd0d0d0, 0xdadada, 0xe4e4e4, 0xeeeeee
 312         };
 313
 314         return (table[c & 0xff] | COLOUR_FLAG_RGB);
 315 }
 316
 317 /* Convert 256 colour to 16 colour. */
 318 int
 319 colour_256to16(int c)
 320 {
 321         static const char table[256] = {
 322                  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15,
 323                  0,  4,  4,  4, 12, 12,  2,  6,  4,  4, 12, 12,  2,  2,  6,  4,
 324                 12, 12,  2,  2,  2,  6, 12, 12, 10, 10, 10, 10, 14, 12, 10, 10,
 325                 10, 10, 10, 14,  1,  5,  4,  4, 12, 12,  3,  8,  4,  4, 12, 12,
 326                  2,  2,  6,  4, 12, 12,  2,  2,  2,  6, 12, 12, 10, 10, 10, 10,
 327                 14, 12, 10, 10, 10, 10, 10, 14,  1,  1,  5,  4, 12, 12,  1,  1,
 328                  5,  4, 12, 12,  3,  3,  8,  4, 12, 12,  2,  2,  2,  6, 12, 12,
 329                 10, 10, 10, 10, 14, 12, 10, 10, 10, 10, 10, 14,  1,  1,  1,  5,
 330                 12, 12,  1,  1,  1,  5, 12, 12,  1,  1,  1,  5, 12, 12,  3,  3,
 331                  3,  7, 12, 12, 10, 10, 10, 10, 14, 12, 10, 10, 10, 10, 10, 14,
 332                  9,  9,  9,  9, 13, 12,  9,  9,  9,  9, 13, 12,  9,  9,  9,  9,
 333                 13, 12,  9,  9,  9,  9, 13, 12, 11, 11, 11, 11,  7, 12, 10, 10,
 334                 10, 10, 10, 14,  9,  9,  9,  9,  9, 13,  9,  9,  9,  9,  9, 13,
 335                  9,  9,  9,  9,  9, 13,  9,  9,  9,  9,  9, 13,  9,  9,  9,  9,
 336                  9, 13, 11, 11, 11, 11, 11, 15,  0,  0,  0,  0,  0,  0,  8,  8,
 337                  8,  8,  8,  8,  7,  7,  7,  7,  7,  7, 15, 15, 15, 15, 15, 15
 338         };
 339
 340         return (table[c & 0xff]);
 341 }
 342
 343 /* Get colour by X11 colour name. */
 344 int
 345 colour_byname(const char *name)
 346 {
 347         static const struct {
 348                 const char      *name;
 349                 int              c;
 350         } colours[] = {
 351                 { "AliceBlue", 0xf0f8ff },
 352                 { "AntiqueWhite", 0xfaebd7 },
 353                 { "AntiqueWhite1", 0xffefdb },
 354                 { "AntiqueWhite2", 0xeedfcc },
 355                 { "AntiqueWhite3", 0xcdc0b0 },
 356                 { "AntiqueWhite4", 0x8b8378 },
 357                 { "BlanchedAlmond", 0xffebcd },
 358                 { "BlueViolet", 0x8a2be2 },
 359                 { "CadetBlue", 0x5f9ea0 },
 360                 { "CadetBlue1", 0x98f5ff },
 361                 { "CadetBlue2", 0x8ee5ee },
 362                 { "CadetBlue3", 0x7ac5cd },
 363                 { "CadetBlue4", 0x53868b },
 364                 { "CornflowerBlue", 0x6495ed },
 365                 { "DarkBlue", 0x00008b },
 366                 { "DarkCyan", 0x008b8b },
 367                 { "DarkGoldenrod", 0xb8860b },
 368                 { "DarkGoldenrod1", 0xffb90f },
 369                 { "DarkGoldenrod2", 0xeead0e },
 370                 { "DarkGoldenrod3", 0xcd950c },
 371                 { "DarkGoldenrod4", 0x8b6508 },
 372                 { "DarkGray", 0xa9a9a9 },
 373                 { "DarkGreen", 0x006400 },
 374                 { "DarkGrey", 0xa9a9a9 },
 375                 { "DarkKhaki", 0xbdb76b },
 376                 { "DarkMagenta", 0x8b008b },
 377                 { "DarkOliveGreen", 0x556b2f },
 378                 { "DarkOliveGreen1", 0xcaff70 },
 379                 { "DarkOliveGreen2", 0xbcee68 },
 380                 { "DarkOliveGreen3", 0xa2cd5a },
 381                 { "DarkOliveGreen4", 0x6e8b3d },
 382                 { "DarkOrange", 0xff8c00 },
 383                 { "DarkOrange1", 0xff7f00 },
 384                 { "DarkOrange2", 0xee7600 },
 385                 { "DarkOrange3", 0xcd6600 },
 386                 { "DarkOrange4", 0x8b4500 },
 387                 { "DarkOrchid", 0x9932cc },
 388                 { "DarkOrchid1", 0xbf3eff },
 389                 { "DarkOrchid2", 0xb23aee },
 390                 { "DarkOrchid3", 0x9a32cd },
 391                 { "DarkOrchid4", 0x68228b },
 392                 { "DarkRed", 0x8b0000 },
 393                 { "DarkSalmon", 0xe9967a },
 394                 { "DarkSeaGreen", 0x8fbc8f },
 395                 { "DarkSeaGreen1", 0xc1ffc1 },
 396                 { "DarkSeaGreen2", 0xb4eeb4 },
 397                 { "DarkSeaGreen3", 0x9bcd9b },
 398                 { "DarkSeaGreen4", 0x698b69 },
 399                 { "DarkSlateBlue", 0x483d8b },
 400                 { "DarkSlateGray", 0x2f4f4f },
 401                 { "DarkSlateGray1", 0x97ffff },
 402                 { "DarkSlateGray2", 0x8deeee },
 403                 { "DarkSlateGray3", 0x79cdcd },
 404                 { "DarkSlateGray4", 0x528b8b },
 405                 { "DarkSlateGrey", 0x2f4f4f },
 406                 { "DarkTurquoise", 0x00ced1 },
 407                 { "DarkViolet", 0x9400d3 },
 408                 { "DeepPink", 0xff1493 },
 409                 { "DeepPink1", 0xff1493 },
 410                 { "DeepPink2", 0xee1289 },
 411                 { "DeepPink3", 0xcd1076 },
 412                 { "DeepPink4", 0x8b0a50 },
 413                 { "DeepSkyBlue", 0x00bfff },
 414                 { "DeepSkyBlue1", 0x00bfff },
 415                 { "DeepSkyBlue2", 0x00b2ee },
 416                 { "DeepSkyBlue3", 0x009acd },
 417                 { "DeepSkyBlue4", 0x00688b },
 418                 { "DimGray", 0x696969 },
 419                 { "DimGrey", 0x696969 },
 420                 { "DodgerBlue", 0x1e90ff },
 421                 { "DodgerBlue1", 0x1e90ff },
 422                 { "DodgerBlue2", 0x1c86ee },
 423                 { "DodgerBlue3", 0x1874cd },
 424                 { "DodgerBlue4", 0x104e8b },
 425                 { "FloralWhite", 0xfffaf0 },
 426                 { "ForestGreen", 0x228b22 },
 427                 { "GhostWhite", 0xf8f8ff },
 428                 { "GreenYellow", 0xadff2f },
 429                 { "HotPink", 0xff69b4 },
 430                 { "HotPink1", 0xff6eb4 },
 431                 { "HotPink2", 0xee6aa7 },
 432                 { "HotPink3", 0xcd6090 },
 433                 { "HotPink4", 0x8b3a62 },
 434                 { "IndianRed", 0xcd5c5c },
 435                 { "IndianRed1", 0xff6a6a },
 436                 { "IndianRed2", 0xee6363 },
 437                 { "IndianRed3", 0xcd5555 },
 438                 { "IndianRed4", 0x8b3a3a },
 439                 { "LavenderBlush", 0xfff0f5 },
 440                 { "LavenderBlush1", 0xfff0f5 },
 441                 { "LavenderBlush2", 0xeee0e5 },
 442                 { "LavenderBlush3", 0xcdc1c5 },
 443                 { "LavenderBlush4", 0x8b8386 },
 444                 { "LawnGreen", 0x7cfc00 },
 445                 { "LemonChiffon", 0xfffacd },
 446                 { "LemonChiffon1", 0xfffacd },
 447                 { "LemonChiffon2", 0xeee9bf },
 448                 { "LemonChiffon3", 0xcdc9a5 },
 449                 { "LemonChiffon4", 0x8b8970 },
 450                 { "LightBlue", 0xadd8e6 },
 451                 { "LightBlue1", 0xbfefff },
 452                 { "LightBlue2", 0xb2dfee },
 453                 { "LightBlue3", 0x9ac0cd },
 454                 { "LightBlue4", 0x68838b },
 455                 { "LightCoral", 0xf08080 },
 456                 { "LightCyan", 0xe0ffff },
 457                 { "LightCyan1", 0xe0ffff },
 458                 { "LightCyan2", 0xd1eeee },
 459                 { "LightCyan3", 0xb4cdcd },
 460                 { "LightCyan4", 0x7a8b8b },
 461                 { "LightGoldenrod", 0xeedd82 },
 462                 { "LightGoldenrod1", 0xffec8b },
 463                 { "LightGoldenrod2", 0xeedc82 },
 464                 { "LightGoldenrod3", 0xcdbe70 },
 465                 { "LightGoldenrod4", 0x8b814c },
 466                 { "LightGoldenrodYellow", 0xfafad2 },
 467                 { "LightGray", 0xd3d3d3 },
 468                 { "LightGreen", 0x90ee90 },
 469                 { "LightGrey", 0xd3d3d3 },
 470                 { "LightPink", 0xffb6c1 },
 471                 { "LightPink1", 0xffaeb9 },
 472                 { "LightPink2", 0xeea2ad },
 473                 { "LightPink3", 0xcd8c95 },
 474                 { "LightPink4", 0x8b5f65 },
 475                 { "LightSalmon", 0xffa07a },
 476                 { "LightSalmon1", 0xffa07a },
 477                 { "LightSalmon2", 0xee9572 },
 478                 { "LightSalmon3", 0xcd8162 },
 479                 { "LightSalmon4", 0x8b5742 },
 480                 { "LightSeaGreen", 0x20b2aa },
 481                 { "LightSkyBlue", 0x87cefa },
 482                 { "LightSkyBlue1", 0xb0e2ff },
 483                 { "LightSkyBlue2", 0xa4d3ee },
 484                 { "LightSkyBlue3", 0x8db6cd },
 485                 { "LightSkyBlue4", 0x607b8b },
 486                 { "LightSlateBlue", 0x8470ff },
 487                 { "LightSlateGray", 0x778899 },
 488                 { "LightSlateGrey", 0x778899 },
 489                 { "LightSteelBlue", 0xb0c4de },
 490                 { "LightSteelBlue1", 0xcae1ff },
 491                 { "LightSteelBlue2", 0xbcd2ee },
 492                 { "LightSteelBlue3", 0xa2b5cd },
 493                 { "LightSteelBlue4", 0x6e7b8b },
 494                 { "LightYellow", 0xffffe0 },
 495                 { "LightYellow1", 0xffffe0 },
 496                 { "LightYellow2", 0xeeeed1 },
 497                 { "LightYellow3", 0xcdcdb4 },
 498                 { "LightYellow4", 0x8b8b7a },
 499                 { "LimeGreen", 0x32cd32 },
 500                 { "MediumAquamarine", 0x66cdaa },
 501                 { "MediumBlue", 0x0000cd },
 502                 { "MediumOrchid", 0xba55d3 },
 503                 { "MediumOrchid1", 0xe066ff },
 504                 { "MediumOrchid2", 0xd15fee },
 505                 { "MediumOrchid3", 0xb452cd },
 506                 { "MediumOrchid4", 0x7a378b },
 507                 { "MediumPurple", 0x9370db },
 508                 { "MediumPurple1", 0xab82ff },
 509                 { "MediumPurple2", 0x9f79ee },
 510                 { "MediumPurple3", 0x8968cd },
 511                 { "MediumPurple4", 0x5d478b },
 512                 { "MediumSeaGreen", 0x3cb371 },
 513                 { "MediumSlateBlue", 0x7b68ee },
 514                 { "MediumSpringGreen", 0x00fa9a },
 515                 { "MediumTurquoise", 0x48d1cc },
 516                 { "MediumVioletRed", 0xc71585 },
 517                 { "MidnightBlue", 0x191970 },
 518                 { "MintCream", 0xf5fffa },
 519                 { "MistyRose", 0xffe4e1 },
 520                 { "MistyRose1", 0xffe4e1 },
 521                 { "MistyRose2", 0xeed5d2 },
 522                 { "MistyRose3", 0xcdb7b5 },
 523                 { "MistyRose4", 0x8b7d7b },
 524                 { "NavajoWhite", 0xffdead },
 525                 { "NavajoWhite1", 0xffdead },
 526                 { "NavajoWhite2", 0xeecfa1 },
 527                 { "NavajoWhite3", 0xcdb38b },
 528                 { "NavajoWhite4", 0x8b795e },
 529                 { "NavyBlue", 0x000080 },
 530                 { "OldLace", 0xfdf5e6 },
 531                 { "OliveDrab", 0x6b8e23 },
 532                 { "OliveDrab1", 0xc0ff3e },
 533                 { "OliveDrab2", 0xb3ee3a },
 534                 { "OliveDrab3", 0x9acd32 },
 535                 { "OliveDrab4", 0x698b22 },
 536                 { "OrangeRed", 0xff4500 },
 537                 { "OrangeRed1", 0xff4500 },
 538                 { "OrangeRed2", 0xee4000 },
 539                 { "OrangeRed3", 0xcd3700 },
 540                 { "OrangeRed4", 0x8b2500 },
 541                 { "PaleGoldenrod", 0xeee8aa },
 542                 { "PaleGreen", 0x98fb98 },
 543                 { "PaleGreen1", 0x9aff9a },
 544                 { "PaleGreen2", 0x90ee90 },
 545                 { "PaleGreen3", 0x7ccd7c },
 546                 { "PaleGreen4", 0x548b54 },
 547                 { "PaleTurquoise", 0xafeeee },
 548                 { "PaleTurquoise1", 0xbbffff },
 549                 { "PaleTurquoise2", 0xaeeeee },
 550                 { "PaleTurquoise3", 0x96cdcd },
 551                 { "PaleTurquoise4", 0x668b8b },
 552                 { "PaleVioletRed", 0xdb7093 },
 553                 { "PaleVioletRed1", 0xff82ab },
 554                 { "PaleVioletRed2", 0xee799f },
 555                 { "PaleVioletRed3", 0xcd6889 },
 556                 { "PaleVioletRed4", 0x8b475d },
 557                 { "PapayaWhip", 0xffefd5 },
 558                 { "PeachPuff", 0xffdab9 },
 559                 { "PeachPuff1", 0xffdab9 },
 560                 { "PeachPuff2", 0xeecbad },
 561                 { "PeachPuff3", 0xcdaf95 },
 562                 { "PeachPuff4", 0x8b7765 },
 563                 { "PowderBlue", 0xb0e0e6 },
 564                 { "RebeccaPurple", 0x663399 },
 565                 { "RosyBrown", 0xbc8f8f },
 566                 { "RosyBrown1", 0xffc1c1 },
 567                 { "RosyBrown2", 0xeeb4b4 },
 568                 { "RosyBrown3", 0xcd9b9b },
 569                 { "RosyBrown4", 0x8b6969 },
 570                 { "RoyalBlue", 0x4169e1 },
 571                 { "RoyalBlue1", 0x4876ff },
 572                 { "RoyalBlue2", 0x436eee },
 573                 { "RoyalBlue3", 0x3a5fcd },
 574                 { "RoyalBlue4", 0x27408b },
 575                 { "SaddleBrown", 0x8b4513 },
 576                 { "SandyBrown", 0xf4a460 },
 577                 { "SeaGreen", 0x2e8b57 },
 578                 { "SeaGreen1", 0x54ff9f },
 579                 { "SeaGreen2", 0x4eee94 },
 580                 { "SeaGreen3", 0x43cd80 },
 581                 { "SeaGreen4", 0x2e8b57 },
 582                 { "SkyBlue", 0x87ceeb },
 583                 { "SkyBlue1", 0x87ceff },
 584                 { "SkyBlue2", 0x7ec0ee },
 585                 { "SkyBlue3", 0x6ca6cd },
 586                 { "SkyBlue4", 0x4a708b },
 587                 { "SlateBlue", 0x6a5acd },
 588                 { "SlateBlue1", 0x836fff },
 589                 { "SlateBlue2", 0x7a67ee },
 590                 { "SlateBlue3", 0x6959cd },
 591                 { "SlateBlue4", 0x473c8b },
 592                 { "SlateGray", 0x708090 },
 593                 { "SlateGray1", 0xc6e2ff },
 594                 { "SlateGray2", 0xb9d3ee },
 595                 { "SlateGray3", 0x9fb6cd },
 596                 { "SlateGray4", 0x6c7b8b },
 597                 { "SlateGrey", 0x708090 },
 598                 { "SpringGreen", 0x00ff7f },
 599                 { "SpringGreen1", 0x00ff7f },
 600                 { "SpringGreen2", 0x00ee76 },
 601                 { "SpringGreen3", 0x00cd66 },
 602                 { "SpringGreen4", 0x008b45 },
 603                 { "SteelBlue", 0x4682b4 },
 604                 { "SteelBlue1", 0x63b8ff },
 605                 { "SteelBlue2", 0x5cacee },
 606                 { "SteelBlue3", 0x4f94cd },
 607                 { "SteelBlue4", 0x36648b },
 608                 { "VioletRed", 0xd02090 },
 609                 { "VioletRed1", 0xff3e96 },
 610                 { "VioletRed2", 0xee3a8c },
 611                 { "VioletRed3", 0xcd3278 },
 612                 { "VioletRed4", 0x8b2252 },
 613                 { "WebGray", 0x808080 },
 614                 { "WebGreen", 0x008000 },
 615                 { "WebGrey", 0x808080 },
 616                 { "WebMaroon", 0x800000 },
 617                 { "WebPurple", 0x800080 },
 618                 { "WhiteSmoke", 0xf5f5f5 },
 619                 { "X11Gray", 0xbebebe },
 620                 { "X11Green", 0x00ff00 },
 621                 { "X11Grey", 0xbebebe },
 622                 { "X11Maroon", 0xb03060 },
 623                 { "X11Purple", 0xa020f0 },
 624                 { "YellowGreen", 0x9acd32 },
 625                 { "alice blue", 0xf0f8ff },
 626                 { "antique white", 0xfaebd7 },
 627                 { "aqua", 0x00ffff },
 628                 { "aquamarine", 0x7fffd4 },
 629                 { "aquamarine1", 0x7fffd4 },
 630                 { "aquamarine2", 0x76eec6 },
 631                 { "aquamarine3", 0x66cdaa },
 632                 { "aquamarine4", 0x458b74 },
 633                 { "azure", 0xf0ffff },
 634                 { "azure1", 0xf0ffff },
 635                 { "azure2", 0xe0eeee },
 636                 { "azure3", 0xc1cdcd },
 637                 { "azure4", 0x838b8b },
 638                 { "beige", 0xf5f5dc },
 639                 { "bisque", 0xffe4c4 },
 640                 { "bisque1", 0xffe4c4 },
 641                 { "bisque2", 0xeed5b7 },
 642                 { "bisque3", 0xcdb79e },
 643                 { "bisque4", 0x8b7d6b },
 644                 { "black", 0x000000 },
 645                 { "blanched almond", 0xffebcd },
 646                 { "blue violet", 0x8a2be2 },
 647                 { "blue", 0x0000ff },
 648                 { "blue1", 0x0000ff },
 649                 { "blue2", 0x0000ee },
 650                 { "blue3", 0x0000cd },
 651                 { "blue4", 0x00008b },
 652                 { "brown", 0xa52a2a },
 653                 { "brown1", 0xff4040 },
 654                 { "brown2", 0xee3b3b },
 655                 { "brown3", 0xcd3333 },
 656                 { "brown4", 0x8b2323 },
 657                 { "burlywood", 0xdeb887 },
 658                 { "burlywood1", 0xffd39b },
 659                 { "burlywood2", 0xeec591 },
 660                 { "burlywood3", 0xcdaa7d },
 661                 { "burlywood4", 0x8b7355 },
 662                 { "cadet blue", 0x5f9ea0 },
 663                 { "chartreuse", 0x7fff00 },
 664                 { "chartreuse1", 0x7fff00 },
 665                 { "chartreuse2", 0x76ee00 },
 666                 { "chartreuse3", 0x66cd00 },
 667                 { "chartreuse4", 0x458b00 },
 668                 { "chocolate", 0xd2691e },
 669                 { "chocolate1", 0xff7f24 },
 670                 { "chocolate2", 0xee7621 },
 671                 { "chocolate3", 0xcd661d },
 672                 { "chocolate4", 0x8b4513 },
 673                 { "coral", 0xff7f50 },
 674                 { "coral1", 0xff7256 },
 675                 { "coral2", 0xee6a50 },
 676                 { "coral3", 0xcd5b45 },
 677                 { "coral4", 0x8b3e2f },
 678                 { "cornflower blue", 0x6495ed },
 679                 { "cornsilk", 0xfff8dc },
 680                 { "cornsilk1", 0xfff8dc },
 681                 { "cornsilk2", 0xeee8cd },
 682                 { "cornsilk3", 0xcdc8b1 },
 683                 { "cornsilk4", 0x8b8878 },
 684                 { "crimson", 0xdc143c },
 685                 { "cyan", 0x00ffff },
 686                 { "cyan1", 0x00ffff },
 687                 { "cyan2", 0x00eeee },
 688                 { "cyan3", 0x00cdcd },
 689                 { "cyan4", 0x008b8b },
 690                 { "dark blue", 0x00008b },
 691                 { "dark cyan", 0x008b8b },
 692                 { "dark goldenrod", 0xb8860b },
 693                 { "dark gray", 0xa9a9a9 },
 694                 { "dark green", 0x006400 },
 695                 { "dark grey", 0xa9a9a9 },
 696                 { "dark khaki", 0xbdb76b },
 697                 { "dark magenta", 0x8b008b },
 698                 { "dark olive green", 0x556b2f },
 699                 { "dark orange", 0xff8c00 },
 700                 { "dark orchid", 0x9932cc },
 701                 { "dark red", 0x8b0000 },
 702                 { "dark salmon", 0xe9967a },
 703                 { "dark sea green", 0x8fbc8f },
 704                 { "dark slate blue", 0x483d8b },
 705                 { "dark slate gray", 0x2f4f4f },
 706                 { "dark slate grey", 0x2f4f4f },
 707                 { "dark turquoise", 0x00ced1 },
 708                 { "dark violet", 0x9400d3 },
 709                 { "deep pink", 0xff1493 },
 710                 { "deep sky blue", 0x00bfff },
 711                 { "dim gray", 0x696969 },
 712                 { "dim grey", 0x696969 },
 713                 { "dodger blue", 0x1e90ff },
 714                 { "firebrick", 0xb22222 },
 715                 { "firebrick1", 0xff3030 },
 716                 { "firebrick2", 0xee2c2c },
 717                 { "firebrick3", 0xcd2626 },
 718                 { "firebrick4", 0x8b1a1a },
 719                 { "floral white", 0xfffaf0 },
 720                 { "forest green", 0x228b22 },
 721                 { "fuchsia", 0xff00ff },
 722                 { "gainsboro", 0xdcdcdc },
 723                 { "ghost white", 0xf8f8ff },
 724                 { "gold", 0xffd700 },
 725                 { "gold1", 0xffd700 },
 726                 { "gold2", 0xeec900 },
 727                 { "gold3", 0xcdad00 },
 728                 { "gold4", 0x8b7500 },
 729                 { "goldenrod", 0xdaa520 },
 730                 { "goldenrod1", 0xffc125 },
 731                 { "goldenrod2", 0xeeb422 },
 732                 { "goldenrod3", 0xcd9b1d },
 733                 { "goldenrod4", 0x8b6914 },
 734                 { "green yellow", 0xadff2f },
 735                 { "green", 0x00ff00 },
 736                 { "green1", 0x00ff00 },
 737                 { "green2", 0x00ee00 },
 738                 { "green3", 0x00cd00 },
 739                 { "green4", 0x008b00 },
 740                 { "honeydew", 0xf0fff0 },
 741                 { "honeydew1", 0xf0fff0 },
 742                 { "honeydew2", 0xe0eee0 },
 743                 { "honeydew3", 0xc1cdc1 },
 744                 { "honeydew4", 0x838b83 },
 745                 { "hot pink", 0xff69b4 },
 746                 { "indian red", 0xcd5c5c },
 747                 { "indigo", 0x4b0082 },
 748                 { "ivory", 0xfffff0 },
 749                 { "ivory1", 0xfffff0 },
 750                 { "ivory2", 0xeeeee0 },
 751                 { "ivory3", 0xcdcdc1 },
 752                 { "ivory4", 0x8b8b83 },
 753                 { "khaki", 0xf0e68c },
 754                 { "khaki1", 0xfff68f },
 755                 { "khaki2", 0xeee685 },
 756                 { "khaki3", 0xcdc673 },
 757                 { "khaki4", 0x8b864e },
 758                 { "lavender blush", 0xfff0f5 },
 759                 { "lavender", 0xe6e6fa },
 760                 { "lawn green", 0x7cfc00 },
 761                 { "lemon chiffon", 0xfffacd },
 762                 { "light blue", 0xadd8e6 },
 763                 { "light coral", 0xf08080 },
 764                 { "light cyan", 0xe0ffff },
 765                 { "light goldenrod yellow", 0xfafad2 },
 766                 { "light goldenrod", 0xeedd82 },
 767                 { "light gray", 0xd3d3d3 },
 768                 { "light green", 0x90ee90 },
 769                 { "light grey", 0xd3d3d3 },
 770                 { "light pink", 0xffb6c1 },
 771                 { "light salmon", 0xffa07a },
 772                 { "light sea green", 0x20b2aa },
 773                 { "light sky blue", 0x87cefa },
 774                 { "light slate blue", 0x8470ff },
 775                 { "light slate gray", 0x778899 },
 776                 { "light slate grey", 0x778899 },
 777                 { "light steel blue", 0xb0c4de },
 778                 { "light yellow", 0xffffe0 },
 779                 { "lime green", 0x32cd32 },
 780                 { "lime", 0x00ff00 },
 781                 { "linen", 0xfaf0e6 },
 782                 { "magenta", 0xff00ff },
 783                 { "magenta1", 0xff00ff },
 784                 { "magenta2", 0xee00ee },
 785                 { "magenta3", 0xcd00cd },
 786                 { "magenta4", 0x8b008b },
 787                 { "maroon", 0xb03060 },
 788                 { "maroon1", 0xff34b3 },
 789                 { "maroon2", 0xee30a7 },
 790                 { "maroon3", 0xcd2990 },
 791                 { "maroon4", 0x8b1c62 },
 792                 { "medium aquamarine", 0x66cdaa },
 793                 { "medium blue", 0x0000cd },
 794                 { "medium orchid", 0xba55d3 },
 795                 { "medium purple", 0x9370db },
 796                 { "medium sea green", 0x3cb371 },
 797                 { "medium slate blue", 0x7b68ee },
 798                 { "medium spring green", 0x00fa9a },
 799                 { "medium turquoise", 0x48d1cc },
 800                 { "medium violet red", 0xc71585 },
 801                 { "midnight blue", 0x191970 },
 802                 { "mint cream", 0xf5fffa },
 803                 { "misty rose", 0xffe4e1 },
 804                 { "moccasin", 0xffe4b5 },
 805                 { "navajo white", 0xffdead },
 806                 { "navy blue", 0x000080 },
 807                 { "navy", 0x000080 },
 808                 { "old lace", 0xfdf5e6 },
 809                 { "olive drab", 0x6b8e23 },
 810                 { "olive", 0x808000 },
 811                 { "orange red", 0xff4500 },
 812                 { "orange", 0xffa500 },
 813                 { "orange1", 0xffa500 },
 814                 { "orange2", 0xee9a00 },
 815                 { "orange3", 0xcd8500 },
 816                 { "orange4", 0x8b5a00 },
 817                 { "orchid", 0xda70d6 },
 818                 { "orchid1", 0xff83fa },
 819                 { "orchid2", 0xee7ae9 },
 820                 { "orchid3", 0xcd69c9 },
 821                 { "orchid4", 0x8b4789 },
 822                 { "pale goldenrod", 0xeee8aa },
 823                 { "pale green", 0x98fb98 },
 824                 { "pale turquoise", 0xafeeee },
 825                 { "pale violet red", 0xdb7093 },
 826                 { "papaya whip", 0xffefd5 },
 827                 { "peach puff", 0xffdab9 },
 828                 { "peru", 0xcd853f },
 829                 { "pink", 0xffc0cb },
 830                 { "pink1", 0xffb5c5 },
 831                 { "pink2", 0xeea9b8 },
 832                 { "pink3", 0xcd919e },
 833                 { "pink4", 0x8b636c },
 834                 { "plum", 0xdda0dd },
 835                 { "plum1", 0xffbbff },
 836                 { "plum2", 0xeeaeee },
 837                 { "plum3", 0xcd96cd },
 838                 { "plum4", 0x8b668b },
 839                 { "powder blue", 0xb0e0e6 },
 840                 { "purple", 0xa020f0 },
 841                 { "purple1", 0x9b30ff },
 842                 { "purple2", 0x912cee },
 843                 { "purple3", 0x7d26cd },
 844                 { "purple4", 0x551a8b },
 845                 { "rebecca purple", 0x663399 },
 846                 { "red", 0xff0000 },
 847                 { "red1", 0xff0000 },
 848                 { "red2", 0xee0000 },
 849                 { "red3", 0xcd0000 },
 850                 { "red4", 0x8b0000 },
 851                 { "rosy brown", 0xbc8f8f },
 852                 { "royal blue", 0x4169e1 },
 853                 { "saddle brown", 0x8b4513 },
 854                 { "salmon", 0xfa8072 },
 855                 { "salmon1", 0xff8c69 },
 856                 { "salmon2", 0xee8262 },
 857                 { "salmon3", 0xcd7054 },
 858                 { "salmon4", 0x8b4c39 },
 859                 { "sandy brown", 0xf4a460 },
 860                 { "sea green", 0x2e8b57 },
 861                 { "seashell", 0xfff5ee },
 862                 { "seashell1", 0xfff5ee },
 863                 { "seashell2", 0xeee5de },
 864                 { "seashell3", 0xcdc5bf },
 865                 { "seashell4", 0x8b8682 },
 866                 { "sienna", 0xa0522d },
 867                 { "sienna1", 0xff8247 },
 868                 { "sienna2", 0xee7942 },
 869                 { "sienna3", 0xcd6839 },
 870                 { "sienna4", 0x8b4726 },
 871                 { "silver", 0xc0c0c0 },
 872                 { "sky blue", 0x87ceeb },
 873                 { "slate blue", 0x6a5acd },
 874                 { "slate gray", 0x708090 },
 875                 { "slate grey", 0x708090 },
 876                 { "snow", 0xfffafa },
 877                 { "snow1", 0xfffafa },
 878                 { "snow2", 0xeee9e9 },
 879                 { "snow3", 0xcdc9c9 },
 880                 { "snow4", 0x8b8989 },
 881                 { "spring green", 0x00ff7f },
 882                 { "steel blue", 0x4682b4 },
 883                 { "tan", 0xd2b48c },
 884                 { "tan1", 0xffa54f },
 885                 { "tan2", 0xee9a49 },
 886                 { "tan3", 0xcd853f },
 887                 { "tan4", 0x8b5a2b },
 888                 { "teal", 0x008080 },
 889                 { "thistle", 0xd8bfd8 },
 890                 { "thistle1", 0xffe1ff },
 891                 { "thistle2", 0xeed2ee },
 892                 { "thistle3", 0xcdb5cd },
 893                 { "thistle4", 0x8b7b8b },
 894                 { "tomato", 0xff6347 },
 895                 { "tomato1", 0xff6347 },
 896                 { "tomato2", 0xee5c42 },
 897                 { "tomato3", 0xcd4f39 },
 898                 { "tomato4", 0x8b3626 },
 899                 { "turquoise", 0x40e0d0 },
 900                 { "turquoise1", 0x00f5ff },
 901                 { "turquoise2", 0x00e5ee },
 902                 { "turquoise3", 0x00c5cd },
 903                 { "turquoise4", 0x00868b },
 904                 { "violet red", 0xd02090 },
 905                 { "violet", 0xee82ee },
 906                 { "web gray", 0x808080 },
 907                 { "web green", 0x008000 },
 908                 { "web grey", 0x808080 },
 909                 { "web maroon", 0x800000 },
 910                 { "web purple", 0x800080 },
 911                 { "wheat", 0xf5deb3 },
 912                 { "wheat1", 0xffe7ba },
 913                 { "wheat2", 0xeed8ae },
 914                 { "wheat3", 0xcdba96 },
 915                 { "wheat4", 0x8b7e66 },
 916                 { "white smoke", 0xf5f5f5 },
 917                 { "white", 0xffffff },
 918                 { "x11 gray", 0xbebebe },
 919                 { "x11 green", 0x00ff00 },
 920                 { "x11 grey", 0xbebebe },
 921                 { "x11 maroon", 0xb03060 },
 922                 { "x11 purple", 0xa020f0 },
 923                 { "yellow green", 0x9acd32 },
 924                 { "yellow", 0xffff00 },
 925                 { "yellow1", 0xffff00 },
 926                 { "yellow2", 0xeeee00 },
 927                 { "yellow3", 0xcdcd00 },
 928                 { "yellow4", 0x8b8b00 }
 929         };
 930         u_int   i;
 931         int     c;
 932
 933         if (strncmp(name, "grey", 4) == 0 || strncmp(name, "gray", 4) == 0) {
 934                 if (!isdigit((u_char)name[4]))
 935                         return (0xbebebe|COLOUR_FLAG_RGB);
 936                 c = round(2.55 * atoi(name + 4));
 937                 if (c < 0 || c > 255)
 938                         return (-1);
 939                 return (colour_join_rgb(c, c, c));
 940         }
 941         for (i = 0; i < nitems(colours); i++) {
 942                 if (strcasecmp(colours[i].name, name) == 0)
 943                         return (colours[i].c|COLOUR_FLAG_RGB);
 944         }
 945         return (-1);
 946 }
 947
 948 /* Initialize palette. */
 949 void
 950 colour_palette_init(struct colour_palette *p)
 951 {
 952         p->fg = 8;
 953         p->bg = 8;
 954         p->palette = NULL;
 955         p->default_palette = NULL;
 956 }
 957
 958 /* Clear palette. */
 959 void
 960 colour_palette_clear(struct colour_palette *p)
 961 {
 962         p->fg = 8;
 963         p->bg = 8;
 964         if (p != NULL) {
 965                 free(p->palette);
 966                 p->palette = NULL;
 967         }
 968 }
 969
 970 /* Free a palette. */
 971 void
 972 colour_palette_free(struct colour_palette *p)
 973 {
 974         if (p != NULL) {
 975                 free(p->palette);
 976                 p->palette = NULL;
 977                 free(p->default_palette);
 978                 p->default_palette = NULL;
 979         }
 980 }
 981
 982 /* Get a colour from a palette. */
 983 int
 984 colour_palette_get(struct colour_palette *p, int c)
 985 {
 986         if (p == NULL)
 987                 return (-1);
 988
 989         if (c >= 90 && c <= 97)
 990                 c = 8 + c - 90;
 991         else if (c & COLOUR_FLAG_256)
 992                 c &= ~COLOUR_FLAG_256;
 993         else if (c >= 8)
 994                 return (-1);
 995
 996         if (p->palette != NULL && p->palette[c] != -1)
 997                 return (p->palette[c]);
 998         if (p->default_palette != NULL && p->default_palette[c] != -1)
 999                 return (p->default_palette[c]);
1000         return (-1);
1001 }
1002
1003 /* Set a colour in a palette. */
1004 int
1005 colour_palette_set(struct colour_palette *p, int n, int c)
1006 {
1007         u_int   i;
1008
1009         if (p == NULL || n > 255)
1010                 return (0);
1011
1012         if (c == -1 && p->palette == NULL)
1013                 return (0);
1014
1015         if (c != -1 && p->palette == NULL) {
1016                 if (p->palette == NULL)
1017                         p->palette = xcalloc(256, sizeof *p->palette);
1018                 for (i = 0; i < 256; i++)
1019                         p->palette[i] = -1;
1020         }
1021         p->palette[n] = c;
1022         return (1);
1023 }
1024
1025 /* Build palette defaults from an option. */
1026 void
1027 colour_palette_from_option(struct colour_palette *p, struct options *oo)
1028 {
1029         struct options_entry            *o;
1030         struct options_array_item       *a;
1031         u_int                            i, n;
1032         int                              c;
1033
1034         if (p == NULL)
1035                 return;
1036
1037         o = options_get(oo, "pane-colours");
1038         if ((a = options_array_first(o)) == NULL) {
1039                 if (p->default_palette != NULL) {
1040                         free(p->default_palette);
1041                         p->default_palette = NULL;
1042                 }
1043                 return;
1044         }
1045         if (p->default_palette == NULL)
1046                 p->default_palette = xcalloc(256, sizeof *p->default_palette);
1047         for (i = 0; i < 256; i++)
1048                 p->default_palette[i] = -1;
1049         while (a != NULL) {
1050                 n = options_array_item_index(a);
1051                 if (n < 256) {
1052                         c = options_array_item_value(a)->number;
1053                         p->default_palette[n] = c;
1054                 }
1055                 a = options_array_next(a);
1056         }
1057
1058 }