2 * $RCSId: xc/lib/fontconfig/fc-lang/fc-lang.c,v 1.3 2002/08/22 07:36:43 keithp Exp $
4 * Copyright © 2002 Keith Packard
6 * Permission to use, copy, modify, distribute, and sell this software and its
7 * documentation for any purpose is hereby granted without fee, provided that
8 * the above copyright notice appear in all copies and that both that
9 * copyright notice and this permission notice appear in supporting
10 * documentation, and that the name of Keith Packard not be used in
11 * advertising or publicity pertaining to distribution of the software without
12 * specific, written prior permission. Keith Packard makes no
13 * representations about the suitability of this software for any purpose. It
14 * is provided "as is" without express or implied warranty.
16 * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
17 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
18 * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
19 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
20 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
21 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
22 * PERFORMANCE OF THIS SOFTWARE.
26 #include "fccharset.c"
32 * Read a set of language orthographies and build C declarations for
33 * charsets which can then be used to identify which languages are
34 * supported by a given font. Note that this uses some utilities
35 * from the fontconfig library, so the necessary file is simply
36 * included in this compilation. A couple of extra utility
37 * functions are also needed in slightly modified form
40 const FcChar16 langBankNumbers[1]; /* place holders so that externs resolve */
41 const FcCharLeaf langBankLeaves[1];
42 const int langBankLeafIdx[1];
45 FcMemAlloc (int kind, int size)
50 FcMemFree (int kind, int size)
58 FcCacheBankToIndexMTF (int bank)
66 return (FcChar8 *) getenv ("HOME");
70 fatal (const char *file, int lineno, const char *msg)
73 fprintf (stderr, "%s:%d: %s\n", file, lineno, msg);
75 fprintf (stderr, "%s: %s\n", file, msg);
80 get_line (FILE *f, char *line, int *lineno)
84 if (!fgets (line, 1024, f))
87 hash = strchr (line, '#');
92 while (end > 0 && isspace (line[end-1]))
95 if (line[0] == '\0' || line[0] == '\n' || line[0] == '\032' || line[0] == '\r')
96 return get_line (f, line, lineno);
103 scanopen (char *file)
107 f = fopen (file, "r");
115 f = fopen (path, "r");
121 * build a single charset from a source file
123 * The file format is quite simple, either
124 * a single hex value or a pair separated with a dash
126 * Comments begin with '#'
130 scan (FILE *f, char *file)
134 int start, end, ucs4;
138 while (get_line (f, line, &lineno))
140 if (!strncmp (line, "include", 7))
142 file = strchr (line, ' ');
143 while (isspace(*file))
147 fatal (file, 0, "can't open");
152 if (strchr (line, '-'))
154 if (sscanf (line, "%x-%x", &start, &end) != 2)
155 fatal (file, lineno, "parse error");
159 if (sscanf (line, "%x", &start) != 1)
160 fatal (file, lineno, "parse error");
164 c = FcCharSetCreate ();
165 for (ucs4 = start; ucs4 <= end; ucs4++)
167 if (!FcCharSetAddChar (c, ucs4))
168 fatal (file, lineno, "out of memory");
171 n = FcCharSetFreeze (c);
172 FcCharSetDestroy (c);
177 * Convert a file name into a name suitable for C declarations
180 get_name (char *file)
185 dot = strchr (file, '.');
187 dot = file + strlen(file);
188 name = malloc (dot - file + 1);
189 strncpy (name, file, dot - file);
190 name[dot-file] = '\0';
195 * Convert a C name into a language name
198 get_lang (char *name)
200 char *lang = malloc (strlen (name) + 1);
204 while ((c = *name++))
206 if (isupper ((int) (unsigned char) c))
207 c = tolower ((int) (unsigned char) c);
218 static int compare (const void *a, const void *b)
220 const FcChar8 *const *as = a, *const *bs = b;
221 return FcStrCmpIgnoreCase (*as, *bs);
224 #define MAX_LANG 1024
225 #define MAX_LANG_SET_MAP ((MAX_LANG + 31) / 32)
227 #define BitSet(map, id) ((map)[(id)>>5] |= ((FcChar32) 1 << ((id) & 0x1f)))
228 #define BitGet(map, id) ((map)[(id)>>5] >> ((id) & 0x1f)) & 1)
231 main (int argc, char **argv)
233 static char *files[MAX_LANG];
234 static FcCharSet *sets[MAX_LANG];
235 static int duplicate[MAX_LANG];
236 static int offsets[MAX_LANG];
237 static int country[MAX_LANG];
238 static char *names[MAX_LANG];
239 static char *langs[MAX_LANG];
246 int total_leaves = 0;
247 int offset_count = 0;
250 static char line[1024];
251 static FcChar32 map[MAX_LANG_SET_MAP];
252 int num_lang_set_map;
253 int setRangeStart[26];
255 FcChar8 setRangeChar;
260 if (!strcmp (argv[argi], "-d"))
267 fatal (argv[0], 0, "Too many languages");
268 files[i++] = argv[argi++];
271 qsort (files, i, sizeof (char *), compare);
275 f = scanopen (files[i]);
277 fatal (files[i], 0, strerror (errno));
278 sets[i] = scan (f, files[i]);
279 names[i] = get_name (files[i]);
280 langs[i] = get_lang(names[i]);
281 if (strchr (langs[i], '-'))
282 country[ncountry++] = i;
284 total_leaves += sets[i]->num;
289 leaves = malloc (total_leaves * sizeof (FcCharLeaf *));
294 for (i = 0; sets[i]; i++)
296 for (sl = 0; sl < sets[i]->num; sl++)
298 for (l = 0; l < tl; l++)
299 if (leaves[l] == FcCharSetGetLeaf(sets[i], sl))
302 leaves[tl++] = FcCharSetGetLeaf(sets[i], sl);
307 * Scan the input until the marker is found
310 while (fgets (line, sizeof (line), stdin))
312 if (!strncmp (line, "@@@", 3))
314 fputs (line, stdout);
317 printf ("/* total size: %d unique leaves: %d */\n\n",
322 printf ("const FcCharLeaf langBankLeaves[%d] = {\n", tl);
323 for (l = 0; l < tl; l++)
325 printf (" { { /* %d */", l);
326 for (i = 0; i < 256/32; i++)
330 printf (" 0x%08x,", leaves[l]->map[i]);
332 printf ("\n } },\n");
337 * Find duplicate charsets
340 for (i = 1; sets[i]; i++)
345 for (j = 0; j < i; j++)
346 if (sets[j] == sets[i])
354 * Find ranges for each letter for faster searching
357 for (i = 0; sets[i]; i++)
359 char c = names[i][0];
361 while (setRangeChar <= c && c <= 'z')
362 setRangeStart[setRangeChar++ - 'a'] = i;
364 for (setRangeChar = 'a'; setRangeChar < 'z'; setRangeChar++)
365 setRangeEnd[setRangeChar - 'a'] = setRangeStart[setRangeChar+1-'a'] - 1;
366 setRangeEnd[setRangeChar - 'a'] = i - 1;
371 for (i = 0; sets[i]; i++)
375 if (duplicate[i] >= 0)
378 for (n = 0; n < sets[i]->num; n++)
380 for (l = 0; l < tl; l++)
381 if (leaves[l] == FcCharSetGetLeaf(sets[i], n))
384 fatal (names[i], 0, "can't find leaf");
388 offset += sets[i]->num;
391 printf ("const int langBankLeafIdx[%d] = {\n",
393 for (i = 0; sets[i]; i++)
397 if (duplicate[i] >= 0)
399 for (n = 0; n < sets[i]->num; n++)
403 for (l = 0; l < tl; l++)
404 if (leaves[l] == FcCharSetGetLeaf(sets[i], n))
407 fatal (names[i], 0, "can't find leaf");
417 printf ("const FcChar16 langBankNumbers[%d] = {\n",
420 for (i = 0; sets[i]; i++)
424 if (duplicate[i] >= 0)
426 for (n = 0; n < sets[i]->num; n++)
430 printf (" 0x%04x,", FcCharSetGetNumbers(sets[i])[n]);
443 printf ("const FcLangCharSet fcLangCharSets[] = {\n");
444 for (i = 0; sets[i]; i++)
446 int j = duplicate[i];
451 printf (" { (FcChar8 *) \"%s\",\n"
452 " { FC_REF_CONSTANT, %d, FC_BANK_LANGS, "
453 "{ .stat = { %d, %d } } } }, /* %d */\n",
455 sets[j]->num, offsets[j], offsets[j], j);
458 printf ("#define NUM_LANG_CHAR_SET %d\n", i);
459 num_lang_set_map = (i + 31) / 32;
460 printf ("#define NUM_LANG_SET_MAP %d\n", num_lang_set_map);
462 * Dump indices with country codes
466 int ncountry_ent = 0;
468 printf ("static const FcChar32 fcLangCountrySets[][NUM_LANG_SET_MAP] = {\n");
469 for (c = 0; c < ncountry; c++)
474 int l = strchr (langs[i], '-') - langs[i];
477 for (k = 0; k < num_lang_set_map; k++)
481 for (d = c + 1; d < ncountry; d++)
484 if (j >= 0 && !strncmp (langs[j], langs[i], l))
491 for (k = 0; k < num_lang_set_map; k++)
492 printf (" 0x%08x,", map[k]);
493 printf (" }, /* %*.*s */\n",
499 printf ("#define NUM_COUNTRY_SET %d\n", ncountry_ent);
504 * Dump sets start/finish for the fastpath
506 printf ("static const FcLangCharSetRange fcLangCharSetRanges[] = {\n");
507 for (setRangeChar = 'a'; setRangeChar <= 'z' ; setRangeChar++)
509 printf (" { %d, %d }, /* %c */\n",
510 setRangeStart[setRangeChar - 'a'],
511 setRangeEnd[setRangeChar - 'a'], setRangeChar);
515 while (fgets (line, sizeof (line), stdin))
516 fputs (line, stdout);
519 exit (ferror (stdout));