1549 lines
27 KiB
C
1549 lines
27 KiB
C
/*
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* fontconfig/src/fcstr.c
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*
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* Copyright © 2000 Keith Packard
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the name of the author(s) not be used in
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* advertising or publicity pertaining to distribution of the software without
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* specific, written prior permission. The authors make no
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* representations about the suitability of this software for any purpose. It
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* is provided "as is" without express or implied warranty.
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*
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* THE AUTHOR(S) DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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#include "fcint.h"
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#include <stdlib.h>
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#include <ctype.h>
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#include <string.h>
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/* Objects MT-safe for readonly access. */
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FcChar8 *
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FcStrCopy (const FcChar8 *s)
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{
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return FcStrdup (s);
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}
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static FcChar8 *
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FcStrMakeTriple (const FcChar8 *s1, const FcChar8 *s2, const FcChar8 *s3)
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{
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int s1l = s1 ? strlen ((char *) s1) : 0;
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int s2l = s2 ? strlen ((char *) s2) : 0;
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int s3l = s3 ? strlen ((char *) s3) : 0;
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int l = s1l + 1 + s2l + 1 + s3l + 1;
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FcChar8 *s = malloc (l);
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if (!s)
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return 0;
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if (s1)
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memcpy (s, s1, s1l + 1);
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else
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s[0] = '\0';
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if (s2)
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memcpy (s + s1l + 1, s2, s2l + 1);
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else
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s[s1l + 1] = '\0';
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if (s3)
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memcpy (s + s1l + 1 + s2l + 1, s3, s3l + 1);
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else
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s[s1l + 1 + s2l + 1] = '\0';
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return s;
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}
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FcChar8 *
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FcStrPlus (const FcChar8 *s1, const FcChar8 *s2)
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{
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int s1l = strlen ((char *) s1);
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int s2l = strlen ((char *) s2);
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int l = s1l + s2l + 1;
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FcChar8 *s = malloc (l);
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if (!s)
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return 0;
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memcpy (s, s1, s1l);
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memcpy (s + s1l, s2, s2l + 1);
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return s;
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}
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void
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FcStrFree (FcChar8 *s)
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{
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free (s);
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}
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#include "../fc-case/fccase.h"
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#define FcCaseFoldUpperCount(cf) \
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((cf)->method == FC_CASE_FOLD_FULL ? 1 : (cf)->count)
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typedef struct _FcCaseWalker {
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const FcChar8 *read;
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const FcChar8 *src;
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FcChar8 utf8[FC_MAX_CASE_FOLD_CHARS + 1];
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} FcCaseWalker;
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static void
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FcStrCaseWalkerInit (const FcChar8 *src, FcCaseWalker *w)
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{
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w->src = src;
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w->read = 0;
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}
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static FcChar8
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FcStrCaseWalkerLong (FcCaseWalker *w, FcChar8 r)
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{
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FcChar32 ucs4;
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int slen;
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int len = strlen((char*)w->src);
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slen = FcUtf8ToUcs4 (w->src - 1, &ucs4, len + 1);
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if (slen <= 0)
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return r;
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if (FC_MIN_FOLD_CHAR <= ucs4 && ucs4 <= FC_MAX_FOLD_CHAR)
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{
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int min = 0;
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int max = FC_NUM_CASE_FOLD;
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while (min <= max)
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{
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int mid = (min + max) >> 1;
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FcChar32 low = fcCaseFold[mid].upper;
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FcChar32 high = low + FcCaseFoldUpperCount (&fcCaseFold[mid]);
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if (high <= ucs4)
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min = mid + 1;
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else if (ucs4 < low)
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max = mid - 1;
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else
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{
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const FcCaseFold *fold = &fcCaseFold[mid];
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int dlen;
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switch (fold->method) {
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case FC_CASE_FOLD_EVEN_ODD:
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if ((ucs4 & 1) != (fold->upper & 1))
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return r;
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/* fall through ... */
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default:
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dlen = FcUcs4ToUtf8 (ucs4 + fold->offset, w->utf8);
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break;
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case FC_CASE_FOLD_FULL:
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dlen = fold->count;
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memcpy (w->utf8, fcCaseFoldChars + fold->offset, dlen);
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break;
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}
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/* consume rest of src utf-8 bytes */
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w->src += slen - 1;
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/* read from temp buffer */
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w->utf8[dlen] = '\0';
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w->read = w->utf8;
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return *w->read++;
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}
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}
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}
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return r;
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}
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static FcChar8
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FcStrCaseWalkerNext (FcCaseWalker *w, const char *delims)
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{
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FcChar8 r;
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if (w->read)
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{
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if ((r = *w->read++))
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return r;
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w->read = 0;
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}
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do
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{
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r = *w->src++;
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} while (r != 0 && delims && strchr (delims, r));
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if ((r & 0xc0) == 0xc0)
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return FcStrCaseWalkerLong (w, r);
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if ('A' <= r && r <= 'Z')
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r = r - 'A' + 'a';
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return r;
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}
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FcChar8 *
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FcStrDowncase (const FcChar8 *s)
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{
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FcCaseWalker w;
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int len = 0;
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FcChar8 *dst, *d;
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FcStrCaseWalkerInit (s, &w);
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while (FcStrCaseWalkerNext (&w, NULL))
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len++;
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d = dst = malloc (len + 1);
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if (!d)
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return 0;
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FcStrCaseWalkerInit (s, &w);
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while ((*d++ = FcStrCaseWalkerNext (&w, NULL)));
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return dst;
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}
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int
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FcStrCmpIgnoreCase (const FcChar8 *s1, const FcChar8 *s2)
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{
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FcCaseWalker w1, w2;
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FcChar8 c1, c2;
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if (s1 == s2) return 0;
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FcStrCaseWalkerInit (s1, &w1);
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FcStrCaseWalkerInit (s2, &w2);
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for (;;)
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{
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c1 = FcStrCaseWalkerNext (&w1, NULL);
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c2 = FcStrCaseWalkerNext (&w2, NULL);
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if (!c1 || (c1 != c2))
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break;
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}
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return (int) c1 - (int) c2;
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}
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int
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FcStrCmpIgnoreBlanksAndCase (const FcChar8 *s1, const FcChar8 *s2)
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{
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return FcStrCmpIgnoreCaseAndDelims (s1, s2, (const FcChar8 *)" ");
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}
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int
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FcStrCmpIgnoreCaseAndDelims (const FcChar8 *s1, const FcChar8 *s2, const FcChar8 *delims)
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{
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FcCaseWalker w1, w2;
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FcChar8 c1, c2;
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if (s1 == s2) return 0;
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FcStrCaseWalkerInit (s1, &w1);
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FcStrCaseWalkerInit (s2, &w2);
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for (;;)
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{
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c1 = FcStrCaseWalkerNext (&w1, (const char *)delims);
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c2 = FcStrCaseWalkerNext (&w2, (const char *)delims);
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if (!c1 || (c1 != c2))
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break;
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}
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return (int) c1 - (int) c2;
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}
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int
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FcStrCmp (const FcChar8 *s1, const FcChar8 *s2)
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{
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FcChar8 c1, c2;
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if (s1 == s2)
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return 0;
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for (;;)
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{
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c1 = *s1++;
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c2 = *s2++;
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if (!c1 || c1 != c2)
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break;
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}
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return (int) c1 - (int) c2;
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}
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/*
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* Return a hash value for a string
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*/
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FcChar32
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FcStrHashIgnoreCase (const FcChar8 *s)
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{
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FcChar32 h = 0;
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FcCaseWalker w;
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FcChar8 c;
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FcStrCaseWalkerInit (s, &w);
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while ((c = FcStrCaseWalkerNext (&w, NULL)))
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h = ((h << 3) ^ (h >> 3)) ^ c;
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return h;
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}
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/*
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* Is the head of s1 equal to s2?
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*/
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static FcBool
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FcStrIsAtIgnoreBlanksAndCase (const FcChar8 *s1, const FcChar8 *s2)
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{
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FcCaseWalker w1, w2;
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FcChar8 c1, c2;
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FcStrCaseWalkerInit (s1, &w1);
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FcStrCaseWalkerInit (s2, &w2);
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for (;;)
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{
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c1 = FcStrCaseWalkerNext (&w1, " ");
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c2 = FcStrCaseWalkerNext (&w2, " ");
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if (!c1 || (c1 != c2))
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break;
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}
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return c1 == c2 || !c2;
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}
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/*
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* Does s1 contain an instance of s2 (ignoring blanks and case)?
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*/
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const FcChar8 *
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FcStrContainsIgnoreBlanksAndCase (const FcChar8 *s1, const FcChar8 *s2)
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{
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while (*s1)
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{
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if (FcStrIsAtIgnoreBlanksAndCase (s1, s2))
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return s1;
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s1++;
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}
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return 0;
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}
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static FcBool
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FcCharIsPunct (const FcChar8 c)
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{
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if (c < '0')
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return FcTrue;
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if (c <= '9')
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return FcFalse;
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if (c < 'A')
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return FcTrue;
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if (c <= 'Z')
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return FcFalse;
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if (c < 'a')
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return FcTrue;
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if (c <= 'z')
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return FcFalse;
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if (c <= '~')
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return FcTrue;
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return FcFalse;
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}
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/*
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* Is the head of s1 equal to s2?
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*/
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static FcBool
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FcStrIsAtIgnoreCase (const FcChar8 *s1, const FcChar8 *s2)
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{
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FcCaseWalker w1, w2;
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FcChar8 c1, c2;
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FcStrCaseWalkerInit (s1, &w1);
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FcStrCaseWalkerInit (s2, &w2);
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for (;;)
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{
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c1 = FcStrCaseWalkerNext (&w1, NULL);
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c2 = FcStrCaseWalkerNext (&w2, NULL);
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if (!c1 || (c1 != c2))
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break;
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}
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return c1 == c2 || !c2;
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}
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/*
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* Does s1 contain an instance of s2 (ignoring blanks and case)?
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*/
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const FcChar8 *
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FcStrContainsIgnoreCase (const FcChar8 *s1, const FcChar8 *s2)
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{
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while (*s1)
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{
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if (FcStrIsAtIgnoreCase (s1, s2))
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return s1;
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s1++;
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}
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return 0;
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}
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/*
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* Does s1 contain an instance of s2 on a word boundary (ignoring case)?
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*/
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const FcChar8 *
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FcStrContainsWord (const FcChar8 *s1, const FcChar8 *s2)
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{
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FcBool wordStart = FcTrue;
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int s1len = strlen ((char *) s1);
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int s2len = strlen ((char *) s2);
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while (s1len >= s2len)
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{
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if (wordStart &&
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FcStrIsAtIgnoreCase (s1, s2) &&
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(s1len == s2len || FcCharIsPunct (s1[s2len])))
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{
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return s1;
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}
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wordStart = FcFalse;
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if (FcCharIsPunct (*s1))
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wordStart = FcTrue;
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s1++;
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s1len--;
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}
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return 0;
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}
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/*
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* returns the number of strings (ignoring delimiters and case) being matched
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*/
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int
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FcStrMatchIgnoreCaseAndDelims (const FcChar8 *s1, const FcChar8 *s2, const FcChar8 *delims)
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{
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FcCaseWalker w1, w2;
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FcChar8 c1, c2;
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if (s1 == s2) return 0;
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FcStrCaseWalkerInit (s1, &w1);
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FcStrCaseWalkerInit (s2, &w2);
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for (;;)
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{
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c1 = FcStrCaseWalkerNext (&w1, (const char *)delims);
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c2 = FcStrCaseWalkerNext (&w2, (const char *)delims);
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if (!c1 || (c1 != c2))
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break;
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}
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return w1.src - s1 - 1;
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}
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FcBool
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FcStrGlobMatch (const FcChar8 *glob,
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const FcChar8 *string)
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{
|
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FcChar8 c;
|
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|
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while ((c = *glob++))
|
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{
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switch (c) {
|
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case '*':
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/* short circuit common case */
|
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if (!*glob)
|
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return FcTrue;
|
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/* short circuit another common case */
|
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if (strchr ((char *) glob, '*') == 0)
|
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{
|
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size_t l1, l2;
|
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|
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l1 = strlen ((char *) string);
|
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l2 = strlen ((char *) glob);
|
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if (l1 < l2)
|
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return FcFalse;
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string += (l1 - l2);
|
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}
|
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while (*string)
|
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{
|
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if (FcStrGlobMatch (glob, string))
|
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return FcTrue;
|
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string++;
|
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}
|
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return FcFalse;
|
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case '?':
|
|
if (*string++ == '\0')
|
|
return FcFalse;
|
|
break;
|
|
default:
|
|
if (*string++ != c)
|
|
return FcFalse;
|
|
break;
|
|
}
|
|
}
|
|
return *string == '\0';
|
|
}
|
|
|
|
const FcChar8 *
|
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FcStrStrIgnoreCase (const FcChar8 *s1, const FcChar8 *s2)
|
|
{
|
|
FcCaseWalker w1, w2;
|
|
FcChar8 c1, c2;
|
|
const FcChar8 *cur;
|
|
|
|
if (!s1 || !s2)
|
|
return 0;
|
|
|
|
if (s1 == s2)
|
|
return s1;
|
|
|
|
FcStrCaseWalkerInit (s1, &w1);
|
|
FcStrCaseWalkerInit (s2, &w2);
|
|
|
|
c2 = FcStrCaseWalkerNext (&w2, NULL);
|
|
|
|
for (;;)
|
|
{
|
|
cur = w1.src;
|
|
c1 = FcStrCaseWalkerNext (&w1, NULL);
|
|
if (!c1)
|
|
break;
|
|
if (c1 == c2)
|
|
{
|
|
FcCaseWalker w1t = w1;
|
|
FcCaseWalker w2t = w2;
|
|
FcChar8 c1t, c2t;
|
|
|
|
for (;;)
|
|
{
|
|
c1t = FcStrCaseWalkerNext (&w1t, NULL);
|
|
c2t = FcStrCaseWalkerNext (&w2t, NULL);
|
|
|
|
if (!c2t)
|
|
return cur;
|
|
if (c2t != c1t)
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
const FcChar8 *
|
|
FcStrStr (const FcChar8 *s1, const FcChar8 *s2)
|
|
{
|
|
FcChar8 c1, c2;
|
|
const FcChar8 * p = s1;
|
|
const FcChar8 * b = s2;
|
|
|
|
if (!s1 || !s2)
|
|
return 0;
|
|
|
|
if (s1 == s2)
|
|
return s1;
|
|
|
|
again:
|
|
c2 = *s2++;
|
|
|
|
if (!c2)
|
|
return 0;
|
|
|
|
for (;;)
|
|
{
|
|
p = s1;
|
|
c1 = *s1++;
|
|
if (!c1 || c1 == c2)
|
|
break;
|
|
}
|
|
|
|
if (c1 != c2)
|
|
return 0;
|
|
|
|
for (;;)
|
|
{
|
|
c1 = *s1;
|
|
c2 = *s2;
|
|
if (c1 && c2 && c1 != c2)
|
|
{
|
|
s1 = p + 1;
|
|
s2 = b;
|
|
goto again;
|
|
}
|
|
if (!c2)
|
|
return p;
|
|
if (!c1)
|
|
return 0;
|
|
++ s1;
|
|
++ s2;
|
|
}
|
|
/* never reached. */
|
|
}
|
|
|
|
int
|
|
FcUtf8ToUcs4 (const FcChar8 *src_orig,
|
|
FcChar32 *dst,
|
|
int len)
|
|
{
|
|
const FcChar8 *src = src_orig;
|
|
FcChar8 s;
|
|
int extra;
|
|
FcChar32 result;
|
|
|
|
if (len == 0)
|
|
return 0;
|
|
|
|
s = *src++;
|
|
len--;
|
|
|
|
if (!(s & 0x80))
|
|
{
|
|
result = s;
|
|
extra = 0;
|
|
}
|
|
else if (!(s & 0x40))
|
|
{
|
|
return -1;
|
|
}
|
|
else if (!(s & 0x20))
|
|
{
|
|
result = s & 0x1f;
|
|
extra = 1;
|
|
}
|
|
else if (!(s & 0x10))
|
|
{
|
|
result = s & 0xf;
|
|
extra = 2;
|
|
}
|
|
else if (!(s & 0x08))
|
|
{
|
|
result = s & 0x07;
|
|
extra = 3;
|
|
}
|
|
else if (!(s & 0x04))
|
|
{
|
|
result = s & 0x03;
|
|
extra = 4;
|
|
}
|
|
else if ( ! (s & 0x02))
|
|
{
|
|
result = s & 0x01;
|
|
extra = 5;
|
|
}
|
|
else
|
|
{
|
|
return -1;
|
|
}
|
|
if (extra > len)
|
|
return -1;
|
|
|
|
while (extra--)
|
|
{
|
|
result <<= 6;
|
|
s = *src++;
|
|
|
|
if ((s & 0xc0) != 0x80)
|
|
return -1;
|
|
|
|
result |= s & 0x3f;
|
|
}
|
|
*dst = result;
|
|
return src - src_orig;
|
|
}
|
|
|
|
FcBool
|
|
FcUtf8Len (const FcChar8 *string,
|
|
int len,
|
|
int *nchar,
|
|
int *wchar)
|
|
{
|
|
int n;
|
|
int clen;
|
|
FcChar32 c;
|
|
FcChar32 max;
|
|
|
|
n = 0;
|
|
max = 0;
|
|
while (len)
|
|
{
|
|
clen = FcUtf8ToUcs4 (string, &c, len);
|
|
if (clen <= 0) /* malformed UTF8 string */
|
|
return FcFalse;
|
|
if (c > max)
|
|
max = c;
|
|
string += clen;
|
|
len -= clen;
|
|
n++;
|
|
}
|
|
*nchar = n;
|
|
if (max >= 0x10000)
|
|
*wchar = 4;
|
|
else if (max > 0x100)
|
|
*wchar = 2;
|
|
else
|
|
*wchar = 1;
|
|
return FcTrue;
|
|
}
|
|
|
|
int
|
|
FcUcs4ToUtf8 (FcChar32 ucs4,
|
|
FcChar8 dest[FC_UTF8_MAX_LEN])
|
|
{
|
|
int bits;
|
|
FcChar8 *d = dest;
|
|
|
|
if (ucs4 < 0x80) { *d++= ucs4; bits= -6; }
|
|
else if (ucs4 < 0x800) { *d++= ((ucs4 >> 6) & 0x1F) | 0xC0; bits= 0; }
|
|
else if (ucs4 < 0x10000) { *d++= ((ucs4 >> 12) & 0x0F) | 0xE0; bits= 6; }
|
|
else if (ucs4 < 0x200000) { *d++= ((ucs4 >> 18) & 0x07) | 0xF0; bits= 12; }
|
|
else if (ucs4 < 0x4000000) { *d++= ((ucs4 >> 24) & 0x03) | 0xF8; bits= 18; }
|
|
else if (ucs4 < 0x80000000) { *d++= ((ucs4 >> 30) & 0x01) | 0xFC; bits= 24; }
|
|
else return 0;
|
|
|
|
for ( ; bits >= 0; bits-= 6) {
|
|
*d++= ((ucs4 >> bits) & 0x3F) | 0x80;
|
|
}
|
|
return d - dest;
|
|
}
|
|
|
|
#define GetUtf16(src,endian) \
|
|
((FcChar16) ((src)[endian == FcEndianBig ? 0 : 1] << 8) | \
|
|
(FcChar16) ((src)[endian == FcEndianBig ? 1 : 0]))
|
|
|
|
int
|
|
FcUtf16ToUcs4 (const FcChar8 *src_orig,
|
|
FcEndian endian,
|
|
FcChar32 *dst,
|
|
int len) /* in bytes */
|
|
{
|
|
const FcChar8 *src = src_orig;
|
|
FcChar16 a, b;
|
|
FcChar32 result;
|
|
|
|
if (len < 2)
|
|
return 0;
|
|
|
|
a = GetUtf16 (src, endian); src += 2; len -= 2;
|
|
|
|
/*
|
|
* Check for surrogate
|
|
*/
|
|
if ((a & 0xfc00) == 0xd800)
|
|
{
|
|
if (len < 2)
|
|
return 0;
|
|
b = GetUtf16 (src, endian); src += 2; len -= 2;
|
|
/*
|
|
* Check for invalid surrogate sequence
|
|
*/
|
|
if ((b & 0xfc00) != 0xdc00)
|
|
return 0;
|
|
result = ((((FcChar32) a & 0x3ff) << 10) |
|
|
((FcChar32) b & 0x3ff)) + 0x10000;
|
|
}
|
|
else
|
|
result = a;
|
|
*dst = result;
|
|
return src - src_orig;
|
|
}
|
|
|
|
FcBool
|
|
FcUtf16Len (const FcChar8 *string,
|
|
FcEndian endian,
|
|
int len, /* in bytes */
|
|
int *nchar,
|
|
int *wchar)
|
|
{
|
|
int n;
|
|
int clen;
|
|
FcChar32 c;
|
|
FcChar32 max;
|
|
|
|
n = 0;
|
|
max = 0;
|
|
while (len)
|
|
{
|
|
clen = FcUtf16ToUcs4 (string, endian, &c, len);
|
|
if (clen <= 0) /* malformed UTF8 string */
|
|
return FcFalse;
|
|
if (c > max)
|
|
max = c;
|
|
string += clen;
|
|
len -= clen;
|
|
n++;
|
|
}
|
|
*nchar = n;
|
|
if (max >= 0x10000)
|
|
*wchar = 4;
|
|
else if (max > 0x100)
|
|
*wchar = 2;
|
|
else
|
|
*wchar = 1;
|
|
return FcTrue;
|
|
}
|
|
|
|
void
|
|
FcStrBufInit (FcStrBuf *buf, FcChar8 *init, int size)
|
|
{
|
|
if (init)
|
|
{
|
|
buf->buf = init;
|
|
buf->size = size;
|
|
} else
|
|
{
|
|
buf->buf = buf->buf_static;
|
|
buf->size = sizeof (buf->buf_static);
|
|
}
|
|
buf->allocated = FcFalse;
|
|
buf->failed = FcFalse;
|
|
buf->len = 0;
|
|
}
|
|
|
|
void
|
|
FcStrBufDestroy (FcStrBuf *buf)
|
|
{
|
|
if (buf->allocated)
|
|
{
|
|
free (buf->buf);
|
|
FcStrBufInit (buf, 0, 0);
|
|
}
|
|
}
|
|
|
|
FcChar8 *
|
|
FcStrBufDone (FcStrBuf *buf)
|
|
{
|
|
FcChar8 *ret;
|
|
|
|
if (buf->failed)
|
|
ret = NULL;
|
|
else
|
|
ret = malloc (buf->len + 1);
|
|
if (ret)
|
|
{
|
|
memcpy (ret, buf->buf, buf->len);
|
|
ret[buf->len] = '\0';
|
|
}
|
|
FcStrBufDestroy (buf);
|
|
return ret;
|
|
}
|
|
|
|
FcChar8 *
|
|
FcStrBufDoneStatic (FcStrBuf *buf)
|
|
{
|
|
FcStrBufChar (buf, '\0');
|
|
|
|
if (buf->failed)
|
|
return NULL;
|
|
|
|
return buf->buf;
|
|
}
|
|
|
|
FcBool
|
|
FcStrBufChar (FcStrBuf *buf, FcChar8 c)
|
|
{
|
|
if (buf->len == buf->size)
|
|
{
|
|
FcChar8 *new;
|
|
int size;
|
|
|
|
if (buf->failed)
|
|
return FcFalse;
|
|
|
|
if (buf->allocated)
|
|
{
|
|
size = buf->size * 2;
|
|
new = realloc (buf->buf, size);
|
|
}
|
|
else
|
|
{
|
|
size = buf->size + 64;
|
|
new = malloc (size);
|
|
if (new)
|
|
{
|
|
buf->allocated = FcTrue;
|
|
memcpy (new, buf->buf, buf->len);
|
|
}
|
|
}
|
|
if (!new)
|
|
{
|
|
buf->failed = FcTrue;
|
|
return FcFalse;
|
|
}
|
|
buf->size = size;
|
|
buf->buf = new;
|
|
}
|
|
buf->buf[buf->len++] = c;
|
|
return FcTrue;
|
|
}
|
|
|
|
FcBool
|
|
FcStrBufString (FcStrBuf *buf, const FcChar8 *s)
|
|
{
|
|
FcChar8 c;
|
|
while ((c = *s++))
|
|
if (!FcStrBufChar (buf, c))
|
|
return FcFalse;
|
|
return FcTrue;
|
|
}
|
|
|
|
FcBool
|
|
FcStrBufData (FcStrBuf *buf, const FcChar8 *s, int len)
|
|
{
|
|
while (len-- > 0)
|
|
if (!FcStrBufChar (buf, *s++))
|
|
return FcFalse;
|
|
return FcTrue;
|
|
}
|
|
|
|
FcBool
|
|
FcStrUsesHome (const FcChar8 *s)
|
|
{
|
|
return *s == '~';
|
|
}
|
|
|
|
FcBool
|
|
FcStrIsAbsoluteFilename (const FcChar8 *s)
|
|
{
|
|
#ifdef _WIN32
|
|
if (*s == '\\' ||
|
|
(isalpha (*s) && s[1] == ':' && (s[2] == '/' || s[2] == '\\')))
|
|
return FcTrue;
|
|
#endif
|
|
return *s == '/';
|
|
}
|
|
|
|
FcChar8 *
|
|
FcStrBuildFilename (const FcChar8 *path,
|
|
...)
|
|
{
|
|
va_list ap;
|
|
FcStrSet *sset;
|
|
FcStrList *list;
|
|
FcChar8 *s, *ret = NULL, *p;
|
|
size_t len = 0;
|
|
|
|
if (!path)
|
|
return NULL;
|
|
|
|
sset = FcStrSetCreateEx (FCSS_ALLOW_DUPLICATES | FCSS_GROW_BY_64);
|
|
if (!sset)
|
|
return NULL;
|
|
|
|
if (!FcStrSetAdd (sset, path))
|
|
goto bail0;
|
|
|
|
va_start (ap, path);
|
|
while (1)
|
|
{
|
|
s = (FcChar8 *)va_arg (ap, FcChar8 *);
|
|
if (!s)
|
|
break;
|
|
if (!FcStrSetAdd (sset, s))
|
|
goto bail1;
|
|
}
|
|
list = FcStrListCreate (sset);
|
|
while ((s = FcStrListNext (list)))
|
|
{
|
|
len += strlen ((const char *)s) + 1;
|
|
}
|
|
list->n = 0;
|
|
ret = malloc (sizeof (FcChar8) * (len + 1));
|
|
if (!ret)
|
|
goto bail2;
|
|
p = ret;
|
|
while ((s = FcStrListNext (list)))
|
|
{
|
|
if (p != ret)
|
|
{
|
|
p[0] = FC_DIR_SEPARATOR;
|
|
p++;
|
|
}
|
|
len = strlen ((const char *)s);
|
|
memcpy (p, s, len);
|
|
p += len;
|
|
}
|
|
*p = 0;
|
|
|
|
bail2:
|
|
FcStrListDone (list);
|
|
bail1:
|
|
va_end (ap);
|
|
bail0:
|
|
FcStrSetDestroy (sset);
|
|
|
|
return ret;
|
|
}
|
|
|
|
FcChar8 *
|
|
FcStrCopyFilename (const FcChar8 *s)
|
|
{
|
|
FcChar8 *new;
|
|
|
|
if (*s == '~')
|
|
{
|
|
FcChar8 *home = FcConfigHome ();
|
|
FcChar8 *full;
|
|
int size;
|
|
if (!home)
|
|
return NULL;
|
|
size = strlen ((char *) home) + strlen ((char *) s);
|
|
full = (FcChar8 *) malloc (size + 1);
|
|
if (!full)
|
|
return NULL;
|
|
strcpy ((char *) full, (char *) home);
|
|
strcat ((char *) full, (char *) s + 1);
|
|
new = FcStrCanonFilename (full);
|
|
free (full);
|
|
}
|
|
else
|
|
new = FcStrCanonFilename (s);
|
|
|
|
return new;
|
|
}
|
|
|
|
FcChar8 *
|
|
FcStrLastSlash (const FcChar8 *path)
|
|
{
|
|
FcChar8 *slash;
|
|
|
|
slash = (FcChar8 *) strrchr ((const char *) path, '/');
|
|
#ifdef _WIN32
|
|
{
|
|
FcChar8 *backslash;
|
|
|
|
backslash = (FcChar8 *) strrchr ((const char *) path, '\\');
|
|
if (!slash || (backslash && backslash > slash))
|
|
slash = backslash;
|
|
}
|
|
#endif
|
|
|
|
return slash;
|
|
}
|
|
|
|
FcChar8 *
|
|
FcStrDirname (const FcChar8 *file)
|
|
{
|
|
FcChar8 *slash;
|
|
FcChar8 *dir;
|
|
|
|
slash = FcStrLastSlash (file);
|
|
if (!slash)
|
|
return FcStrCopy ((FcChar8 *) ".");
|
|
dir = malloc ((slash - file) + 1);
|
|
if (!dir)
|
|
return 0;
|
|
strncpy ((char *) dir, (const char *) file, slash - file);
|
|
dir[slash - file] = '\0';
|
|
return dir;
|
|
}
|
|
|
|
FcChar8 *
|
|
FcStrBasename (const FcChar8 *file)
|
|
{
|
|
FcChar8 *slash;
|
|
|
|
slash = FcStrLastSlash (file);
|
|
if (!slash)
|
|
return FcStrCopy (file);
|
|
return FcStrCopy (slash + 1);
|
|
}
|
|
|
|
static FcChar8 *
|
|
FcStrCanonAbsoluteFilename (const FcChar8 *s)
|
|
{
|
|
FcChar8 *file;
|
|
FcChar8 *f;
|
|
const FcChar8 *slash;
|
|
int size;
|
|
|
|
size = strlen ((char *) s) + 1;
|
|
file = malloc (size);
|
|
if (!file)
|
|
return NULL;
|
|
slash = NULL;
|
|
f = file;
|
|
#ifdef _WIN32
|
|
if (*s == '/' && *(s+1) == '/') /* Network path, do not squash // */
|
|
*f++ = *s++;
|
|
#endif
|
|
for (;;) {
|
|
if (*s == '/' || *s == '\0')
|
|
{
|
|
if (slash)
|
|
{
|
|
switch (s - slash) {
|
|
case 1:
|
|
f -= 1; /* squash // and trim final / from file */
|
|
break;
|
|
case 2:
|
|
if (!strncmp ((char *) slash, "/.", 2))
|
|
{
|
|
f -= 2; /* trim /. from file */
|
|
}
|
|
break;
|
|
case 3:
|
|
if (!strncmp ((char *) slash, "/..", 3))
|
|
{
|
|
f -= 3; /* trim /.. from file */
|
|
while (f > file) {
|
|
if (*--f == '/')
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
slash = s;
|
|
}
|
|
if (!(*f++ = *s++))
|
|
break;
|
|
}
|
|
return file;
|
|
}
|
|
|
|
#ifdef _WIN32
|
|
/*
|
|
* Convert '\\' to '/' , remove double '/'
|
|
*/
|
|
static void
|
|
FcConvertDosPath (char *str)
|
|
{
|
|
size_t len = strlen (str);
|
|
char *p = str;
|
|
char *dest = str;
|
|
char *end = str + len;
|
|
char last = 0;
|
|
|
|
if (*p == '\\')
|
|
{
|
|
*p = '/';
|
|
p++;
|
|
dest++;
|
|
}
|
|
while (p < end)
|
|
{
|
|
if (*p == '\\')
|
|
*p = '/';
|
|
|
|
if (*p != '/'
|
|
|| last != '/')
|
|
{
|
|
*dest++ = *p;
|
|
}
|
|
|
|
last = *p;
|
|
p++;
|
|
}
|
|
|
|
*dest = 0;
|
|
}
|
|
#endif
|
|
|
|
FcChar8 *
|
|
FcStrCanonFilename (const FcChar8 *s)
|
|
{
|
|
#ifdef _WIN32
|
|
FcChar8 full[FC_MAX_FILE_LEN + 2];
|
|
int size = GetFullPathName ((LPCSTR) s, sizeof (full) -1,
|
|
(LPSTR) full, NULL);
|
|
|
|
if (size == 0)
|
|
perror ("GetFullPathName");
|
|
|
|
FcConvertDosPath ((char *) full);
|
|
return FcStrCanonAbsoluteFilename (full);
|
|
#else
|
|
if (s[0] == '/')
|
|
return FcStrCanonAbsoluteFilename (s);
|
|
else
|
|
{
|
|
FcChar8 *full;
|
|
FcChar8 *file;
|
|
|
|
FcChar8 cwd[FC_MAX_FILE_LEN + 2];
|
|
if (getcwd ((char *) cwd, FC_MAX_FILE_LEN) == NULL)
|
|
return NULL;
|
|
full = FcStrBuildFilename (cwd, s, NULL);
|
|
file = FcStrCanonAbsoluteFilename (full);
|
|
FcStrFree (full);
|
|
return file;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
|
|
FcStrSet *
|
|
FcStrSetCreate (void)
|
|
{
|
|
return FcStrSetCreateEx (FCSS_DEFAULT);
|
|
}
|
|
|
|
FcStrSet *
|
|
FcStrSetCreateEx (unsigned int control)
|
|
{
|
|
FcStrSet *set = malloc (sizeof (FcStrSet));
|
|
if (!set)
|
|
return 0;
|
|
FcRefInit (&set->ref, 1);
|
|
set->num = 0;
|
|
set->size = 0;
|
|
set->strs = 0;
|
|
set->control = control;
|
|
return set;
|
|
}
|
|
|
|
static FcBool
|
|
_FcStrSetGrow (FcStrSet *set, int growElements)
|
|
{
|
|
/* accommodate an additional NULL entry at the end of the array */
|
|
FcChar8 **strs = malloc ((set->size + growElements + 1) * sizeof (FcChar8 *));
|
|
if (!strs)
|
|
return FcFalse;
|
|
if (set->num)
|
|
memcpy (strs, set->strs, set->num * sizeof (FcChar8 *));
|
|
if (set->strs)
|
|
free (set->strs);
|
|
set->size = set->size + growElements;
|
|
set->strs = strs;
|
|
return FcTrue;
|
|
}
|
|
|
|
static FcBool
|
|
_FcStrSetAppend (FcStrSet *set, FcChar8 *s)
|
|
{
|
|
if (!FcStrSetHasControlBit (set, FCSS_ALLOW_DUPLICATES))
|
|
{
|
|
if (FcStrSetMember (set, s))
|
|
{
|
|
FcStrFree (s);
|
|
return FcTrue;
|
|
}
|
|
}
|
|
if (set->num == set->size)
|
|
{
|
|
int growElements = FcStrSetHasControlBit (set, FCSS_GROW_BY_64) ? 64 : 1;
|
|
if (!_FcStrSetGrow(set, growElements))
|
|
return FcFalse;
|
|
}
|
|
set->strs[set->num++] = s;
|
|
set->strs[set->num] = 0;
|
|
return FcTrue;
|
|
}
|
|
|
|
FcBool
|
|
FcStrSetMember (FcStrSet *set, const FcChar8 *s)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < set->num; i++)
|
|
if (!FcStrCmp (set->strs[i], s))
|
|
return FcTrue;
|
|
return FcFalse;
|
|
}
|
|
|
|
static int
|
|
fc_strcmp_r (const FcChar8 *s1, const FcChar8 *s2, const FcChar8 **ret)
|
|
{
|
|
FcChar8 c1, c2;
|
|
|
|
if (s1 == s2)
|
|
{
|
|
if (ret)
|
|
*ret = NULL;
|
|
return 0;
|
|
}
|
|
for (;;)
|
|
{
|
|
if (s1)
|
|
c1 = *s1++;
|
|
else
|
|
c1 = 0;
|
|
if (s2)
|
|
c2 = *s2++;
|
|
else
|
|
c2 = 0;
|
|
if (!c1 || c1 != c2)
|
|
break;
|
|
}
|
|
if (ret)
|
|
*ret = s1;
|
|
return (int) c1 - (int) c2;
|
|
}
|
|
|
|
FcBool
|
|
FcStrSetMemberAB (FcStrSet *set, const FcChar8 *a, FcChar8 *b, FcChar8 **ret)
|
|
{
|
|
int i;
|
|
const FcChar8 *s = NULL;
|
|
|
|
for (i = 0; i < set->num; i++)
|
|
{
|
|
if (!fc_strcmp_r (set->strs[i], a, &s) && s)
|
|
{
|
|
if (!fc_strcmp_r (s, b, NULL))
|
|
{
|
|
if (ret)
|
|
*ret = set->strs[i];
|
|
return FcTrue;
|
|
}
|
|
}
|
|
}
|
|
if (ret)
|
|
*ret = NULL;
|
|
return FcFalse;
|
|
}
|
|
|
|
FcBool
|
|
FcStrSetEqual (FcStrSet *sa, FcStrSet *sb)
|
|
{
|
|
int i;
|
|
if (sa->num != sb->num)
|
|
return FcFalse;
|
|
for (i = 0; i < sa->num; i++)
|
|
if (!FcStrSetMember (sb, sa->strs[i]))
|
|
return FcFalse;
|
|
return FcTrue;
|
|
}
|
|
|
|
FcBool
|
|
FcStrSetAdd (FcStrSet *set, const FcChar8 *s)
|
|
{
|
|
FcChar8 *new = FcStrCopy (s);
|
|
if (!new)
|
|
return FcFalse;
|
|
if (!_FcStrSetAppend (set, new))
|
|
{
|
|
FcStrFree (new);
|
|
return FcFalse;
|
|
}
|
|
return FcTrue;
|
|
}
|
|
|
|
FcBool
|
|
FcStrSetAddTriple (FcStrSet *set, const FcChar8 *a, const FcChar8 *b, const FcChar8 *c)
|
|
{
|
|
FcChar8 *new = FcStrMakeTriple (a, b, c);
|
|
if (!new)
|
|
return FcFalse;
|
|
if (!_FcStrSetAppend (set, new))
|
|
{
|
|
FcStrFree (new);
|
|
return FcFalse;
|
|
}
|
|
return FcTrue;
|
|
}
|
|
|
|
const FcChar8 *
|
|
FcStrTripleSecond (FcChar8 *str)
|
|
{
|
|
FcChar8 *second = str + strlen((char *) str) + 1;
|
|
|
|
if (*second == '\0')
|
|
return 0;
|
|
return second;
|
|
}
|
|
|
|
const FcChar8 *
|
|
FcStrTripleThird (FcChar8 *str)
|
|
{
|
|
FcChar8 *second = str + strlen ((char *) str) + 1;
|
|
FcChar8 *third = second + strlen ((char *) second) + 1;
|
|
|
|
if (*third == '\0')
|
|
return 0;
|
|
return third;
|
|
}
|
|
|
|
FcBool
|
|
FcStrSetAddFilename (FcStrSet *set, const FcChar8 *s)
|
|
{
|
|
FcChar8 *new = FcStrCopyFilename (s);
|
|
if (!new)
|
|
return FcFalse;
|
|
if (!_FcStrSetAppend (set, new))
|
|
{
|
|
FcStrFree (new);
|
|
return FcFalse;
|
|
}
|
|
return FcTrue;
|
|
}
|
|
|
|
FcBool
|
|
FcStrSetAddFilenamePairWithSalt (FcStrSet *set, const FcChar8 *a, const FcChar8 *b, const FcChar8 *salt)
|
|
{
|
|
FcChar8 *new_a = NULL;
|
|
FcChar8 *new_b = NULL;
|
|
FcChar8 *rs = NULL;
|
|
FcBool ret;
|
|
|
|
if (a)
|
|
{
|
|
new_a = FcStrCopyFilename (a);
|
|
if (!new_a)
|
|
return FcFalse;
|
|
}
|
|
if (b)
|
|
{
|
|
new_b = FcStrCopyFilename(b);
|
|
if (!new_b)
|
|
{
|
|
if (new_a)
|
|
FcStrFree(new_a);
|
|
return FcFalse;
|
|
}
|
|
}
|
|
/* Override maps with new one if exists */
|
|
if (FcStrSetMemberAB (set, new_a, new_b, &rs))
|
|
{
|
|
FcStrSetDel (set, rs);
|
|
}
|
|
ret = FcStrSetAddTriple (set, new_a, new_b, salt);
|
|
if (new_a)
|
|
FcStrFree (new_a);
|
|
if (new_b)
|
|
FcStrFree (new_b);
|
|
return ret;
|
|
}
|
|
|
|
FcBool
|
|
FcStrSetAddLangs (FcStrSet *strs, const char *languages)
|
|
{
|
|
const char *p = languages, *next;
|
|
FcChar8 lang[128] = {0}, *normalized_lang;
|
|
size_t len;
|
|
FcBool ret = FcFalse;
|
|
|
|
if (!languages)
|
|
return FcFalse;
|
|
|
|
while ((next = strchr (p, ':')))
|
|
{
|
|
len = next - p;
|
|
len = FC_MIN (len, 127);
|
|
strncpy ((char *) lang, p, len);
|
|
lang[len] = 0;
|
|
/* ignore an empty item */
|
|
if (*lang)
|
|
{
|
|
normalized_lang = FcLangNormalize ((const FcChar8 *) lang);
|
|
if (normalized_lang)
|
|
{
|
|
FcStrSetAdd (strs, normalized_lang);
|
|
FcStrFree (normalized_lang);
|
|
ret = FcTrue;
|
|
}
|
|
}
|
|
p = next + 1;
|
|
}
|
|
if (*p)
|
|
{
|
|
normalized_lang = FcLangNormalize ((const FcChar8 *) p);
|
|
if (normalized_lang)
|
|
{
|
|
FcStrSetAdd (strs, normalized_lang);
|
|
FcStrFree (normalized_lang);
|
|
ret = FcTrue;
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
FcBool
|
|
FcStrSetDel (FcStrSet *set, const FcChar8 *s)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < set->num; i++)
|
|
if (!FcStrCmp (set->strs[i], s))
|
|
{
|
|
FcStrFree (set->strs[i]);
|
|
/*
|
|
* copy remaining string pointers and trailing
|
|
* NULL
|
|
*/
|
|
memmove (&set->strs[i], &set->strs[i+1],
|
|
(set->num - i) * sizeof (FcChar8 *));
|
|
set->num--;
|
|
return FcTrue;
|
|
}
|
|
return FcFalse;
|
|
}
|
|
|
|
FcBool
|
|
FcStrSetDeleteAll (FcStrSet *set)
|
|
{
|
|
int i;
|
|
|
|
if (FcRefIsConst (&set->ref))
|
|
return FcFalse;
|
|
|
|
for (i = set->num; i > 0; i--)
|
|
{
|
|
FcStrFree (set->strs[i - 1]);
|
|
set->num--;
|
|
}
|
|
return FcTrue;
|
|
}
|
|
|
|
/* TODO Make public */
|
|
static FcStrSet *
|
|
FcStrSetReference (FcStrSet *set)
|
|
{
|
|
if (FcRefIsConst (&set->ref))
|
|
return set;
|
|
|
|
FcRefInc (&set->ref);
|
|
return set;
|
|
}
|
|
|
|
void
|
|
FcStrSetDestroy (FcStrSet *set)
|
|
{
|
|
int i;
|
|
|
|
/* We rely on this in FcGetDefaultLangs for caching. */
|
|
if (FcRefIsConst (&set->ref))
|
|
return;
|
|
|
|
if (FcRefDec (&set->ref) != 1)
|
|
return;
|
|
|
|
for (i = 0; i < set->num; i++)
|
|
FcStrFree (set->strs[i]);
|
|
if (set->strs)
|
|
free (set->strs);
|
|
free (set);
|
|
}
|
|
|
|
FcStrList *
|
|
FcStrListCreate (FcStrSet *set)
|
|
{
|
|
FcStrList *list;
|
|
|
|
list = malloc (sizeof (FcStrList));
|
|
if (!list)
|
|
return 0;
|
|
list->set = set;
|
|
FcStrSetReference (set);
|
|
list->n = 0;
|
|
return list;
|
|
}
|
|
|
|
void
|
|
FcStrListFirst (FcStrList *list)
|
|
{
|
|
list->n = 0;
|
|
}
|
|
|
|
FcChar8 *
|
|
FcStrListNext (FcStrList *list)
|
|
{
|
|
if (list->n >= list->set->num)
|
|
return 0;
|
|
return list->set->strs[list->n++];
|
|
}
|
|
|
|
void
|
|
FcStrListDone (FcStrList *list)
|
|
{
|
|
FcStrSetDestroy (list->set);
|
|
free (list);
|
|
}
|
|
|
|
#define __fcstr__
|
|
#include "fcaliastail.h"
|
|
#undef __fcstr__
|