131 lines
3.4 KiB
C
131 lines
3.4 KiB
C
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/*
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* $XFree86$
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*
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* Copyright <EFBFBD> 2002 Keith Packard, member of The XFree86 Project, Inc.
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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 Keith Packard 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. Keith Packard makes 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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* KEITH PACKARD 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 KEITH PACKARD 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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typedef struct {
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FcChar8 *lang;
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FcCharSet charset;
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} FcLangCharSet;
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@@@
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#define NUM_LANG_CHAR_SET (sizeof (fcLangCharSets) / sizeof (fcLangCharSets[0]))
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FcBool
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FcFreeTypeSetLang (FcPattern *pattern, FcCharSet *charset)
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{
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int i;
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FcChar32 missing;
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for (i = 0; i < NUM_LANG_CHAR_SET; i++)
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{
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missing = FcCharSetSubtractCount (&fcLangCharSets[i].charset, charset);
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if (FcDebug() & FC_DBG_SCANV)
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printf ("%s(%d) ", fcLangCharSets[i].lang, missing);
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if (!missing && !FcFreeTypeHasLang (pattern, fcLangCharSets[i].lang))
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if (!FcPatternAddString (pattern, FC_LANG, fcLangCharSets[i].lang))
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return FcFalse;
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}
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if (FcDebug() & FC_DBG_SCANV)
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printf ("\n");
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return FcTrue;
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}
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FcLangResult
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FcLangCompare (const FcChar8 *s1, const FcChar8 *s2)
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{
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const FcChar8 *orig_s1 = s1;
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FcChar8 c1, c2;
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FcLangResult result;
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/*
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* Compare ISO 639 language codes
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*/
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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 == '\0' || c1 == '-')
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break;
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if (c2 == '\0' || c2 == '-')
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break;
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c1 = FcToLower (c1);
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c2 = FcToLower (c2);
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if (c1 != c2)
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return FcLangDifferentLang; /* mismatching lang code */
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}
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if (!c1 && !c2)
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return FcLangEqual;
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/*
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* Make x-* mismatch as if the lang part didn't match
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*/
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result = FcLangDifferentCountry;
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if (orig_s1[0] == 'x' && (orig_s1[1] == '\0' || orig_s1[1] == '-'))
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result = FcLangDifferentLang;
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if (c1 == '\0' || c2 == '\0')
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return result;
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/*
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* Compare ISO 3166 country codes
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*/
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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 || !c2)
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break;
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c1 = FcToLower (c1);
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c2 = FcToLower (c2);
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if (c1 != c2)
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break;
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}
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if (c1 == c2)
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return FcLangEqual;
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else
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return result;
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}
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const FcCharSet *
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FcCharSetForLang (const FcChar8 *lang)
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{
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int i;
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int country = -1;
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for (i = 0; i < NUM_LANG_CHAR_SET; i++)
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{
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switch (FcLangCompare (lang, fcLangCharSets[i].lang)) {
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case FcLangEqual:
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return &fcLangCharSets[i].charset;
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case FcLangDifferentCountry:
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if (country == -1)
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country = i;
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default:
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break;
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}
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}
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if (country == -1)
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return 0;
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return &fcLangCharSets[i].charset;
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}
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