diff options
Diffstat (limited to 'fontconfig/fc-glyphname/fc-glyphname.c')
-rw-r--r-- | fontconfig/fc-glyphname/fc-glyphname.c | 650 |
1 files changed, 325 insertions, 325 deletions
diff --git a/fontconfig/fc-glyphname/fc-glyphname.c b/fontconfig/fc-glyphname/fc-glyphname.c index b790d986f..0339073a2 100644 --- a/fontconfig/fc-glyphname/fc-glyphname.c +++ b/fontconfig/fc-glyphname/fc-glyphname.c @@ -1,325 +1,325 @@ -/* - * fontconfig/fc-glyphname/fc-glyphname.c - * - * Copyright © 2003 Keith Packard - * - * Permission to use, copy, modify, distribute, and sell this software and its - * documentation for any purpose is hereby granted without fee, provided that - * the above copyright notice appear in all copies and that both that - * copyright notice and this permission notice appear in supporting - * documentation, and that the name of the author(s) not be used in - * advertising or publicity pertaining to distribution of the software without - * specific, written prior permission. The authors make no - * representations about the suitability of this software for any purpose. It - * is provided "as is" without express or implied warranty. - * - * THE AUTHOR(S) DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, - * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO - * EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY SPECIAL, INDIRECT OR - * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, - * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER - * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR - * PERFORMANCE OF THIS SOFTWARE. - */ - -#include "fcint.h" - -static int -rawindex (const FcGlyphName *gn); - -static void -scan (FILE *f, char *filename); - -static int -isprime (int i); - -static void -find_hash (void); - -static FcChar32 -FcHashGlyphName (const FcChar8 *name); - -static void -insert (FcGlyphName *gn, FcGlyphName **table, FcChar32 h); - -static void -dump (FcGlyphName * const *table, const char *name); - -static FcGlyphName * -FcAllocGlyphName (FcChar32 ucs, FcChar8 *name) -{ - FcGlyphName *gn; - - gn = malloc (sizeof (FcGlyphName) + strlen ((char *) name)); - if (!gn) - return 0; - gn->ucs = ucs; - strcpy ((char *) gn->name, (char *) name); - return gn; -} - -static void -fatal (const char *file, int lineno, const char *msg) -{ - if (lineno) - fprintf (stderr, "%s:%d: %s\n", file, lineno, msg); - else - fprintf (stderr, "%s: %s\n", file, msg); - - exit (1); -} - -#define MAX_GLYPHFILE 256 -#define MAX_GLYPHNAME 10240 -#define MAX_NAMELEN 1024 - -static FcGlyphName *raw[MAX_GLYPHNAME]; -static int nraw; -static int max_name_len; -static FcGlyphName *name_to_ucs[MAX_GLYPHNAME*2]; -static FcGlyphName *ucs_to_name[MAX_GLYPHNAME*2]; -static unsigned int hash, rehash; - -static int -rawindex (const FcGlyphName *gn) -{ - int i; - - for (i = 0; i < nraw; i++) - if (raw[i] == gn) - return i; - return -1; -} - -static void -scan (FILE *f, char *filename) -{ - char buf[MAX_NAMELEN]; - char name[MAX_NAMELEN]; - unsigned long ucs; - FcGlyphName *gn; - int lineno = 0; - int len; - - while (fgets (buf, sizeof (buf), f)) - { - lineno++; - if (sscanf (buf, "%[^;];%lx\n", name, &ucs) != 2) - continue; - gn = FcAllocGlyphName ((FcChar32) ucs, (FcChar8 *) name); - if (!gn) - fatal (filename, lineno, "out of memory"); - len = strlen (name); - if (len > max_name_len) - max_name_len = len; - raw[nraw++] = gn; - } -} - -static int compare_string (const void *a, const void *b) -{ - const char *const *as = a, *const *bs = b; - return strcmp (*as, *bs); -} - -static int compare_glyphname (const void *a, const void *b) -{ - const FcGlyphName *const *ag = a, *const *bg = b; - - return strcmp ((char *) (*ag)->name, (char *) (*bg)->name); -} - -static int -isqrt (int a) -{ - int l, h, m; - - l = 2; - h = a/2; - while ((h-l) > 1) - { - m = (h+l) >> 1; - if (m * m < a) - l = m; - else - h = m; - } - return h; -} - -static int -isprime (int i) -{ - int l, t; - - if (i < 2) - return FcFalse; - if ((i & 1) == 0) - { - if (i == 2) - return FcTrue; - return FcFalse; - } - l = isqrt (i) + 1; - for (t = 3; t <= l; t += 2) - if (i % t == 0) - return 0; - return 1; -} - -/* - * Find a prime pair that leaves at least 25% of the hash table empty - */ - -static void -find_hash (void) -{ - int h; - - h = nraw + nraw / 4; - if ((h & 1) == 0) - h++; - while (!isprime(h-2) || !isprime(h)) - h += 2; - hash = h; - rehash = h-2; -} - -static FcChar32 -FcHashGlyphName (const FcChar8 *name) -{ - FcChar32 h = 0; - FcChar8 c; - - while ((c = *name++)) - { - h = ((h << 1) | (h >> 31)) ^ c; - } - return h; -} - -static void -insert (FcGlyphName *gn, FcGlyphName **table, FcChar32 h) -{ - int i, r = 0; - - i = (int) (h % hash); - while (table[i]) - { - if (!r) r = (int) (h % rehash + 1); - i += r; - if (i >= hash) - i -= hash; - } - table[i] = gn; -} - -static void -dump (FcGlyphName * const *table, const char *name) -{ - int i; - - printf ("static const FcGlyphId %s[%d] = {\n", name, hash); - - for (i = 0; i < hash; i++) - if (table[i]) - printf (" %d,\n", rawindex(table[i])); - else - printf (" -1,\n"); - - printf ("};\n"); -} - -int -main (int argc, char **argv) -{ - char *files[MAX_GLYPHFILE]; - char line[1024]; - FILE *f; - int i; - char *type; - - i = 0; - while (argv[i+1]) - { - if (i == MAX_GLYPHFILE) - fatal (*argv, 0, "Too many glyphname files"); - files[i] = argv[i+1]; - i++; - } - files[i] = 0; - qsort (files, i, sizeof (char *), compare_string); - for (i = 0; files[i]; i++) - { - f = fopen (files[i], "r"); - if (!f) - fatal (files[i], 0, strerror (errno)); - scan (f, files[i]); - fclose (f); - } - qsort (raw, nraw, sizeof (FcGlyphName *), compare_glyphname); - - find_hash (); - - for (i = 0; i < nraw; i++) - { - insert (raw[i], name_to_ucs, FcHashGlyphName (raw[i]->name)); - insert (raw[i], ucs_to_name, raw[i]->ucs); - } - - /* - * Scan the input until the marker is found - */ - - while (fgets (line, sizeof (line), stdin)) - { - if (!strncmp (line, "@@@", 3)) - break; - fputs (line, stdout); - } - - printf ("/* %d glyphnames in %d entries, %d%% occupancy */\n\n", - nraw, hash, nraw * 100 / hash); - - printf ("#define FC_GLYPHNAME_HASH %u\n", hash); - printf ("#define FC_GLYPHNAME_REHASH %u\n", rehash); - printf ("#define FC_GLYPHNAME_MAXLEN %d\n\n", max_name_len); - if (nraw < 128) - type = "int8_t"; - else if (nraw < 32768) - type = "int16_t"; - else - type = "int32_t"; - - printf ("typedef %s FcGlyphId;\n\n", type); - - /* - * Dump out entries - */ - - printf ("static const struct { const FcChar32 ucs; const FcChar8 name[%d]; } _fc_glyph_names[%d] = {\n", - max_name_len + 1, nraw); - - for (i = 0; i < nraw; i++) - printf (" { 0x%lx, \"%s\" },\n", - (unsigned long) raw[i]->ucs, raw[i]->name); - - printf ("};\n"); - - /* - * Dump out name_to_ucs table - */ - - dump (name_to_ucs, "_fc_name_to_ucs"); - - /* - * Dump out ucs_to_name table - */ - dump (ucs_to_name, "_fc_ucs_to_name"); - - while (fgets (line, sizeof (line), stdin)) - fputs (line, stdout); - - fflush (stdout); - exit (ferror (stdout)); -} +/*
+ * fontconfig/fc-glyphname/fc-glyphname.c
+ *
+ * Copyright © 2003 Keith Packard
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of the author(s) not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission. The authors make no
+ * representations about the suitability of this software for any purpose. It
+ * is provided "as is" without express or implied warranty.
+ *
+ * THE AUTHOR(S) DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "fcint.h"
+
+static int
+rawindex (const FcGlyphName *gn);
+
+static void
+scan (FILE *f, char *filename);
+
+static int
+isprime (int i);
+
+static void
+find_hash (void);
+
+static FcChar32
+FcHashGlyphName (const FcChar8 *name);
+
+static void
+insert (FcGlyphName *gn, FcGlyphName **table, FcChar32 h);
+
+static void
+dump (FcGlyphName * const *table, const char *name);
+
+static FcGlyphName *
+FcAllocGlyphName (FcChar32 ucs, FcChar8 *name)
+{
+ FcGlyphName *gn;
+
+ gn = malloc (sizeof (FcGlyphName) + strlen ((char *) name));
+ if (!gn)
+ return 0;
+ gn->ucs = ucs;
+ strcpy ((char *) gn->name, (char *) name);
+ return gn;
+}
+
+static void
+fatal (const char *file, int lineno, const char *msg)
+{
+ if (lineno)
+ fprintf (stderr, "%s:%d: %s\n", file, lineno, msg);
+ else
+ fprintf (stderr, "%s: %s\n", file, msg);
+
+ exit (1);
+}
+
+#define MAX_GLYPHFILE 256
+#define MAX_GLYPHNAME 10240
+#define MAX_NAMELEN 1024
+
+static FcGlyphName *raw[MAX_GLYPHNAME];
+static int nraw;
+static int max_name_len;
+static FcGlyphName *name_to_ucs[MAX_GLYPHNAME*2];
+static FcGlyphName *ucs_to_name[MAX_GLYPHNAME*2];
+static unsigned int hash, rehash;
+
+static int
+rawindex (const FcGlyphName *gn)
+{
+ int i;
+
+ for (i = 0; i < nraw; i++)
+ if (raw[i] == gn)
+ return i;
+ return -1;
+}
+
+static void
+scan (FILE *f, char *filename)
+{
+ char buf[MAX_NAMELEN];
+ char name[MAX_NAMELEN];
+ unsigned long ucs;
+ FcGlyphName *gn;
+ int lineno = 0;
+ int len;
+
+ while (fgets (buf, sizeof (buf), f))
+ {
+ lineno++;
+ if (sscanf (buf, "%[^;];%lx\n", name, &ucs) != 2)
+ continue;
+ gn = FcAllocGlyphName ((FcChar32) ucs, (FcChar8 *) name);
+ if (!gn)
+ fatal (filename, lineno, "out of memory");
+ len = strlen (name);
+ if (len > max_name_len)
+ max_name_len = len;
+ raw[nraw++] = gn;
+ }
+}
+
+static int compare_string (const void *a, const void *b)
+{
+ const char *const *as = a, *const *bs = b;
+ return strcmp (*as, *bs);
+}
+
+static int compare_glyphname (const void *a, const void *b)
+{
+ const FcGlyphName *const *ag = a, *const *bg = b;
+
+ return strcmp ((char *) (*ag)->name, (char *) (*bg)->name);
+}
+
+static int
+isqrt (int a)
+{
+ int l, h, m;
+
+ l = 2;
+ h = a/2;
+ while ((h-l) > 1)
+ {
+ m = (h+l) >> 1;
+ if (m * m < a)
+ l = m;
+ else
+ h = m;
+ }
+ return h;
+}
+
+static int
+isprime (int i)
+{
+ int l, t;
+
+ if (i < 2)
+ return FcFalse;
+ if ((i & 1) == 0)
+ {
+ if (i == 2)
+ return FcTrue;
+ return FcFalse;
+ }
+ l = isqrt (i) + 1;
+ for (t = 3; t <= l; t += 2)
+ if (i % t == 0)
+ return 0;
+ return 1;
+}
+
+/*
+ * Find a prime pair that leaves at least 25% of the hash table empty
+ */
+
+static void
+find_hash (void)
+{
+ int h;
+
+ h = nraw + nraw / 4;
+ if ((h & 1) == 0)
+ h++;
+ while (!isprime(h-2) || !isprime(h))
+ h += 2;
+ hash = h;
+ rehash = h-2;
+}
+
+static FcChar32
+FcHashGlyphName (const FcChar8 *name)
+{
+ FcChar32 h = 0;
+ FcChar8 c;
+
+ while ((c = *name++))
+ {
+ h = ((h << 1) | (h >> 31)) ^ c;
+ }
+ return h;
+}
+
+static void
+insert (FcGlyphName *gn, FcGlyphName **table, FcChar32 h)
+{
+ int i, r = 0;
+
+ i = (int) (h % hash);
+ while (table[i])
+ {
+ if (!r) r = (int) (h % rehash + 1);
+ i += r;
+ if (i >= hash)
+ i -= hash;
+ }
+ table[i] = gn;
+}
+
+static void
+dump (FcGlyphName * const *table, const char *name)
+{
+ int i;
+
+ printf ("static const FcGlyphId %s[%d] = {\n", name, hash);
+
+ for (i = 0; i < hash; i++)
+ if (table[i])
+ printf (" %d,\n", rawindex(table[i]));
+ else
+ printf (" -1,\n");
+
+ printf ("};\n");
+}
+
+int
+main (int argc, char **argv)
+{
+ char *files[MAX_GLYPHFILE];
+ char line[1024];
+ FILE *f;
+ int i;
+ char *type;
+
+ i = 0;
+ while (argv[i+1])
+ {
+ if (i == MAX_GLYPHFILE)
+ fatal (*argv, 0, "Too many glyphname files");
+ files[i] = argv[i+1];
+ i++;
+ }
+ files[i] = 0;
+ qsort (files, i, sizeof (char *), compare_string);
+ for (i = 0; files[i]; i++)
+ {
+ f = fopen (files[i], "r");
+ if (!f)
+ fatal (files[i], 0, strerror (errno));
+ scan (f, files[i]);
+ fclose (f);
+ }
+ qsort (raw, nraw, sizeof (FcGlyphName *), compare_glyphname);
+
+ find_hash ();
+
+ for (i = 0; i < nraw; i++)
+ {
+ insert (raw[i], name_to_ucs, FcHashGlyphName (raw[i]->name));
+ insert (raw[i], ucs_to_name, raw[i]->ucs);
+ }
+
+ /*
+ * Scan the input until the marker is found
+ */
+
+ while (fgets (line, sizeof (line), stdin))
+ {
+ if (!strncmp (line, "@@@", 3))
+ break;
+ fputs (line, stdout);
+ }
+
+ printf ("/* %d glyphnames in %d entries, %d%% occupancy */\n\n",
+ nraw, hash, nraw * 100 / hash);
+
+ printf ("#define FC_GLYPHNAME_HASH %u\n", hash);
+ printf ("#define FC_GLYPHNAME_REHASH %u\n", rehash);
+ printf ("#define FC_GLYPHNAME_MAXLEN %d\n\n", max_name_len);
+ if (nraw < 128)
+ type = "int8_t";
+ else if (nraw < 32768)
+ type = "int16_t";
+ else
+ type = "int32_t";
+
+ printf ("typedef %s FcGlyphId;\n\n", type);
+
+ /*
+ * Dump out entries
+ */
+
+ printf ("static const struct { const FcChar32 ucs; const FcChar8 name[%d]; } _fc_glyph_names[%d] = {\n",
+ max_name_len + 1, nraw);
+
+ for (i = 0; i < nraw; i++)
+ printf (" { 0x%lx, \"%s\" },\n",
+ (unsigned long) raw[i]->ucs, raw[i]->name);
+
+ printf ("};\n");
+
+ /*
+ * Dump out name_to_ucs table
+ */
+
+ dump (name_to_ucs, "_fc_name_to_ucs");
+
+ /*
+ * Dump out ucs_to_name table
+ */
+ dump (ucs_to_name, "_fc_ucs_to_name");
+
+ while (fgets (line, sizeof (line), stdin))
+ fputs (line, stdout);
+
+ fflush (stdout);
+ exit (ferror (stdout));
+}
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