4 * Copyright © 2004 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.
31 typedef enum _caseFoldClass { CaseFoldCommon, CaseFoldFull, CaseFoldSimple, CaseFoldTurkic } CaseFoldClass;
33 typedef struct _caseFoldClassMap {
38 static const CaseFoldClassMap caseFoldClassMap[] = {
39 { "C", CaseFoldCommon },
40 { "F", CaseFoldFull },
41 { "S", CaseFoldSimple },
42 { "T", CaseFoldTurkic },
46 typedef struct _caseFoldRaw {
50 FcChar32 lower[MAX_OUT];
54 panic (const char *reason)
56 fprintf (stderr, "fc-case: panic %s\n", reason);
61 static FcCaseFold *folds;
68 folds = realloc (folds, (nfolds + 1) * sizeof (FcCaseFold));
70 folds = malloc (sizeof (FcCaseFold));
72 panic ("out of memory");
73 return &folds[nfolds++];
77 ucs4_to_utf8 (FcChar32 ucs4,
78 FcChar8 dest[FC_UTF8_MAX_LEN])
83 if (ucs4 < 0x80) { *d++= ucs4; bits= -6; }
84 else if (ucs4 < 0x800) { *d++= ((ucs4 >> 6) & 0x1F) | 0xC0; bits= 0; }
85 else if (ucs4 < 0x10000) { *d++= ((ucs4 >> 12) & 0x0F) | 0xE0; bits= 6; }
86 else if (ucs4 < 0x200000) { *d++= ((ucs4 >> 18) & 0x07) | 0xF0; bits= 12; }
87 else if (ucs4 < 0x4000000) { *d++= ((ucs4 >> 24) & 0x03) | 0xF8; bits= 18; }
88 else if (ucs4 < 0x80000000) { *d++= ((ucs4 >> 30) & 0x01) | 0xFC; bits= 24; }
91 for ( ; bits >= 0; bits-= 6) {
92 *d++= ((ucs4 >> bits) & 0x3F) | 0x80;
98 utf8_size (FcChar32 ucs4)
100 FcChar8 utf8[FC_UTF8_MAX_LEN];
101 return ucs4_to_utf8 (ucs4, utf8 );
104 static FcChar8 *foldChars;
105 static int nfoldChars;
106 static int maxFoldChars;
107 static FcChar32 minFoldChar;
108 static FcChar32 maxFoldChar;
113 FcChar8 utf8[FC_UTF8_MAX_LEN];
117 len = ucs4_to_utf8 (c, utf8);
119 foldChars = realloc (foldChars, (nfoldChars + len) * sizeof (FcChar8));
121 foldChars = malloc (sizeof (FcChar8) * len);
123 panic ("out of memory");
124 for (i = 0; i < len; i++)
125 foldChars[nfoldChars + i] = utf8[i];
130 foldExtends (FcCaseFold *fold, CaseFoldRaw *raw)
132 switch (fold->method) {
133 case FC_CASE_FOLD_RANGE:
134 if ((short) (raw->lower[0] - raw->upper) != fold->offset)
136 if (raw->upper != fold->upper + fold->count)
139 case FC_CASE_FOLD_EVEN_ODD:
140 if ((short) (raw->lower[0] - raw->upper) != 1)
142 if (raw->upper != fold->upper + fold->count + 1)
145 case FC_CASE_FOLD_FULL:
152 case_fold_method_name (FcChar16 method)
155 case FC_CASE_FOLD_RANGE: return "FC_CASE_FOLD_RANGE,";
156 case FC_CASE_FOLD_EVEN_ODD: return "FC_CASE_FOLD_EVEN_ODD,";
157 case FC_CASE_FOLD_FULL: return "FC_CASE_FOLD_FULL,";
158 default: return "unknown";
167 printf ( "#define FC_NUM_CASE_FOLD %d\n", nfolds);
168 printf ( "#define FC_NUM_CASE_FOLD_CHARS %d\n", nfoldChars);
169 printf ( "#define FC_MAX_CASE_FOLD_CHARS %d\n", maxFoldChars);
170 printf ( "#define FC_MAX_CASE_FOLD_EXPAND %d\n", maxExpand);
171 printf ( "#define FC_MIN_FOLD_CHAR 0x%08x\n", minFoldChar);
172 printf ( "#define FC_MAX_FOLD_CHAR 0x%08x\n", maxFoldChar);
178 printf ("static const FcCaseFold fcCaseFold[FC_NUM_CASE_FOLD] = {\n");
179 for (i = 0; i < nfolds; i++)
181 printf (" { 0x%08x, %-22s 0x%04x, %6d },\n",
182 folds[i].upper, case_fold_method_name (folds[i].method),
183 folds[i].count, folds[i].offset);
188 * Dump out "other" values
191 printf ("static const FcChar8 fcCaseFoldChars[FC_NUM_CASE_FOLD_CHARS] = {\n");
192 for (i = 0; i < nfoldChars; i++)
194 printf ("0x%02x", foldChars[i]);
195 if (i != nfoldChars - 1)
197 if ((i & 0xf) == 0xf)
207 * Read the standard Unicode CaseFolding.txt file
212 parseRaw (char *line, CaseFoldRaw *raw)
217 if (!isxdigit (line[0]))
220 * Get upper case value
222 tok = strtok (line, SEP);
223 if (!tok || tok[0] == '#')
225 raw->upper = strtol (tok, &end, 16);
231 tok = strtok (NULL, SEP);
232 if (!tok || tok[0] == '#')
234 for (i = 0; caseFoldClassMap[i].name; i++)
235 if (!strcmp (tok, caseFoldClassMap[i].name))
237 raw->class = caseFoldClassMap[i].class;
240 if (!caseFoldClassMap[i].name)
244 * Get list of result characters
246 for (i = 0; i < MAX_OUT; i++)
248 tok = strtok (NULL, SEP);
249 if (!tok || tok[0] == '#')
251 raw->lower[i] = strtol (tok, &end, 16);
262 caseFoldReadRaw (FILE *in, CaseFoldRaw *raw)
268 if (!fgets (line, sizeof (line) - 1, in))
270 if (parseRaw (line, raw))
276 main (int argc, char **argv)
278 FcCaseFold *fold = 0;
286 panic ("usage: fc-case CaseFolding.txt");
287 caseFile = fopen (argv[1], "r");
289 panic ("can't open case folding file");
291 while (caseFoldReadRaw (caseFile, &raw))
294 minFoldChar = raw.upper;
295 maxFoldChar = raw.upper;
301 if (fold && foldExtends (fold, &raw))
302 fold->count = raw.upper - fold->upper + 1;
306 fold->upper = raw.upper;
307 fold->offset = raw.lower[0] - raw.upper;
308 if (fold->offset == 1)
309 fold->method = FC_CASE_FOLD_EVEN_ODD;
311 fold->method = FC_CASE_FOLD_RANGE;
314 expand = utf8_size (raw.lower[0]) - utf8_size(raw.upper);
319 fold->upper = raw.upper;
320 fold->method = FC_CASE_FOLD_FULL;
321 fold->offset = nfoldChars;
322 for (i = 0; i < raw.nout; i++)
323 addChar (raw.lower[i]);
324 fold->count = nfoldChars - fold->offset;
325 if (fold->count > maxFoldChars)
326 maxFoldChars = fold->count;
327 expand = fold->count - utf8_size (raw.upper);
329 if (expand > maxExpand)
339 * Scan the input until the marker is found
342 while (fgets (line, sizeof (line), stdin))
344 if (!strncmp (line, "@@@", 3))
346 fputs (line, stdout);
355 * And flush out the rest of the input file
358 while (fgets (line, sizeof (line), stdin))
359 fputs (line, stdout);
362 exit (ferror (stdout));