return ((ls->map[bucket] >> (id & 0x1f)) & 1) ? FcTrue : FcFalse;
}
+static void
+FcLangSetBitReset (FcLangSet *ls,
+ unsigned int id)
+{
+ int bucket;
+
+ id = fcLangCharSetIndices[id];
+ bucket = id >> 5;
+ if (bucket >= ls->map_size)
+ return; /* shouldn't happen really */
+
+ ls->map[bucket] &= ~((FcChar32) 1 << (id & 0x1f));
+}
+
FcLangSet *
FcFreeTypeLangSet (const FcCharSet *charset,
const FcChar8 *exclusiveLang)
return FcStrSetAdd (ls->extra, lang);
}
+FcBool
+FcLangSetDel (FcLangSet *ls, const FcChar8 *lang)
+{
+ int id;
+
+ id = FcLangSetIndex (lang);
+ if (id >= 0)
+ {
+ FcLangSetBitReset (ls, id);
+ }
+ else if (ls->extra)
+ {
+ FcStrSetDel (ls->extra, lang);
+ }
+ return FcTrue;
+}
+
FcLangResult
FcLangSetHasLang (const FcLangSet *ls, const FcChar8 *lang)
{
return langs;
}
+static FcLangSet *
+FcLangSetOperate(const FcLangSet *a,
+ const FcLangSet *b,
+ FcBool (*func) (FcLangSet *ls,
+ const FcChar8 *s))
+{
+ FcLangSet *langset = FcLangSetCopy (a);
+ FcStrList *sl = FcStrListCreate (FcLangSetGetLangs (b));
+ FcChar8 *str;
+
+ while ((str = FcStrListNext (sl)))
+ {
+ func (langset, str);
+ }
+ FcStrListDone (sl);
+
+ return langset;
+}
+
+FcLangSet *
+FcLangSetUnion (const FcLangSet *a, const FcLangSet *b)
+{
+ return FcLangSetOperate(a, b, FcLangSetAdd);
+}
+
+FcLangSet *
+FcLangSetSubtract (const FcLangSet *a, const FcLangSet *b)
+{
+ return FcLangSetOperate(a, b, FcLangSetDel);
+}
+
#define __fclang__
#include "fcaliastail.h"
#include "fcftaliastail.h"