2 * $XFree86: xc/lib/fontconfig/fc-lang/fc-lang.c,v 1.3 2002/08/22 07:36:43 keithp Exp $
4 * Copyright © 2002 Keith Packard, member of The XFree86 Project, Inc.
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.
30 * Read a set of language orthographies and build C declarations for
31 * charsets which can then be used to identify which languages are
32 * supported by a given font. Note that it would be nice if
33 * this could be done while compiling the library, but this
34 * code uses a number of routines from the library. It's
35 * expediant to just ship the pre-built version along with the
36 * source orthographies.
40 fatal (char *file, int lineno, char *msg)
42 fprintf (stderr, "%s:%d: %s\n", file, lineno, msg);
47 get_line (FILE *f, char *line, int *lineno)
50 if (!fgets (line, 1024, f))
53 hash = strchr (line, '#');
56 if (line[0] == '\0' || line[0] == '\n' || line[0] == '\032' || line[0] == '\r')
57 return get_line (f, line, lineno);
62 * build a single charset from a source file
64 * The file format is quite simple, either
65 * a single hex value or a pair separated with a dash
67 * Comments begin with '#'
71 scan (FILE *f, char *file)
79 while (get_line (f, line, &lineno))
81 if (!strncmp (line, "include", 7))
83 file = strchr (line, ' ');
87 if (file[end-1] == '\n')
89 f = fopen (file, "r");
91 fatal (file, 0, "can't open");
96 if (strchr (line, '-'))
98 if (sscanf (line, "%x-%x", &start, &end) != 2)
99 fatal (file, lineno, "parse error");
103 if (sscanf (line, "%x", &start) != 1)
104 fatal (file, lineno, "parse error");
108 c = FcCharSetCreate ();
109 for (ucs4 = start; ucs4 <= end; ucs4++)
111 if (!FcCharSetAddChar (c, ucs4))
112 fatal (file, lineno, "out of memory");
115 n = FcCharSetFreeze (c);
116 FcCharSetDestroy (c);
121 * Convert a file name into a name suitable for C declarations
124 get_name (char *file)
129 dot = strchr (file, '.');
131 dot = file + strlen(file);
132 name = malloc (dot - file + 1);
133 strncpy (name, file, dot - file);
134 name[dot-file] = '\0';
139 * Convert a C name into a language name
142 get_lang (char *name)
144 char *lang = malloc (strlen (name) + 1);
148 while ((c = *name++))
162 static int compare (const void *a, const void *b)
164 const FcChar8 *const *as = a, *const *bs = b;
165 return FcStrCmpIgnoreCase (*as, *bs);
168 #define MAX_LANG 1024
169 #define MAX_LANG_SET_MAP ((MAX_LANG + 31) / 32)
171 #define BitSet(map, id) ((map)[(id)>>5] |= ((FcChar32) 1 << ((id) & 0x1f)))
172 #define BitGet(map, id) ((map)[(id)>>5] >> ((id) & 0x1f)) & 1)
175 main (int argc, char **argv)
177 char *files[MAX_LANG];
178 FcCharSet *sets[MAX_LANG];
179 int duplicate[MAX_LANG];
180 int country[MAX_LANG];
181 char *names[MAX_LANG];
182 char *langs[MAX_LANG];
186 FcCharLeaf **leaves, **sleaves;
187 int total_leaves = 0;
191 FcChar32 map[MAX_LANG_SET_MAP];
192 int num_lang_set_map;
197 fatal (*argv, 0, "Too many languages");
201 qsort (files, i, sizeof (char *), compare);
205 f = fopen (files[i], "r");
207 fatal (files[i], 0, strerror (errno));
208 sets[i] = scan (f, files[i]);
209 names[i] = get_name (files[i]);
210 langs[i] = get_lang(names[i]);
211 if (strchr (langs[i], '-'))
212 country[ncountry++] = i;
214 total_leaves += sets[i]->num;
219 leaves = malloc (total_leaves * sizeof (FcCharLeaf *));
224 for (i = 0; sets[i]; i++)
226 sleaves = sets[i]->leaves;
227 for (sl = 0; sl < sets[i]->num; sl++)
229 for (l = 0; l < tl; l++)
230 if (leaves[l] == sleaves[sl])
233 leaves[tl++] = sleaves[sl];
238 * Scan the input until the marker is found
241 while (fgets (line, sizeof (line), stdin))
243 if (!strncmp (line, "@@@", 3))
245 fputs (line, stdout);
248 printf ("/* total size: %d unique leaves: %d */\n\n",
253 printf ("static const FcCharLeaf leaves[%d] = {\n", tl);
254 for (l = 0; l < tl; l++)
256 printf (" { { /* %d */", l);
257 for (i = 0; i < 256/32; i++)
261 printf (" 0x%08x,", leaves[l]->map[i]);
263 printf ("\n } },\n");
266 printf ("#define L(n) ((FcCharLeaf *) &leaves[n])\n\n");
269 * Find duplicate charsets
272 for (i = 1; sets[i]; i++)
277 for (j = 0; j < i; j++)
278 if (sets[j] == sets[i])
288 for (i = 0; sets[i]; i++)
292 if (duplicate[i] >= 0)
294 printf ("static const FcCharLeaf *leaves_%s[%d] = {\n",
295 names[i], sets[i]->num);
296 for (n = 0; n < sets[i]->num; n++)
300 for (l = 0; l < tl; l++)
301 if (leaves[l] == sets[i]->leaves[n])
304 fatal (names[i], 0, "can't find leaf");
305 printf (" L(%3d),", l);
314 printf ("static const FcChar16 numbers_%s[%d] = {\n",
315 names[i], sets[i]->num);
316 for (n = 0; n < sets[i]->num; n++)
320 printf (" 0x%04x,", sets[i]->numbers[n]);
328 printf ("#undef L\n\n");
332 printf ("static const FcLangCharSet fcLangCharSets[] = {\n");
333 for (i = 0; sets[i]; i++)
335 int j = duplicate[i];
338 printf (" { (FcChar8 *) \"%s\",\n"
339 " { FC_REF_CONSTANT, %d, "
340 "(FcCharLeaf **) leaves_%s, "
341 "(FcChar16 *) numbers_%s } },\n",
343 sets[j]->num, names[j], names[j]);
346 printf ("#define NUM_LANG_CHAR_SET %d\n", i);
347 num_lang_set_map = (i + 31) / 32;
348 printf ("#define NUM_LANG_SET_MAP %d\n", num_lang_set_map);
350 * Dump indices with country codes
354 int ncountry_ent = 0;
356 printf ("static const FcChar32 fcLangCountrySets[][NUM_LANG_SET_MAP] = {\n");
357 for (c = 0; c < ncountry; c++)
362 int l = strchr (langs[i], '-') - langs[i];
365 for (k = 0; k < num_lang_set_map; k++)
369 for (d = c + 1; d < ncountry; d++)
372 if (j >= 0 && !strncmp (langs[j], langs[i], l))
379 for (k = 0; k < num_lang_set_map; k++)
380 printf (" 0x%08x,", map[k]);
381 printf (" }, /* %*.*s */\n",
387 printf ("#define NUM_COUNTRY_SET %d\n", ncountry_ent);
390 while (fgets (line, sizeof (line), stdin))
391 fputs (line, stdout);
394 exit (ferror (stdout));