/*
* $RCSId: xc/lib/fontconfig/src/fclang.c,v 1.7 2002/08/26 23:34:31 keithp Exp $
*
- * Copyright © 2002 Keith Packard
+ * Copyright © 2002 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
}
/*
- * Return FcTrue when s1 contains s2.
+ * Return FcTrue when super contains sub.
*
- * s1 contains s2 if s1 equals s2 or if s1 is a
- * language with a country and s2 is just a language
+ * super contains sub if super and sub have the same
+ * language and either the same country or one
+ * is missing the country
*/
static FcBool
-FcLangContains (const FcChar8 *s1, const FcChar8 *s2)
+FcLangContains (const FcChar8 *super, const FcChar8 *sub)
{
FcChar8 c1, c2;
for (;;)
{
- c1 = *s1++;
- c2 = *s2++;
+ c1 = *super++;
+ c2 = *sub++;
c1 = FcToLower (c1);
c2 = FcToLower (c2);
if (c1 != c2)
{
- /* see if s1 has a country while s2 is mising one */
+ /* see if super has a country while sub is mising one */
if (c1 == '-' && c2 == '\0')
return FcTrue;
+ /* see if sub has a country while super is mising one */
+ if (c1 == '\0' && c2 == '-')
+ return FcTrue;
return FcFalse;
}
else if (!c1)
int low, high, mid = 0;
int cmp = 0;
FcChar8 firstChar = FcToLower(lang[0]);
+ FcChar8 secondChar = firstChar ? FcToLower(lang[1]) : '\0';
if (firstChar < 'a')
{
else
{ /* fast path for resolving 2-letter languages (by far the most common) after
* finding the first char (probably already true because of the hash table) */
- FcChar8 secondChar = FcToLower(lang[1]);
- if (fcLangCharSets[mid].lang[1] > secondChar) /* check second chars */
+ cmp = fcLangCharSets[mid].lang[1] - secondChar;
+ if (cmp == 0 &&
+ (fcLangCharSets[mid].lang[2] != '\0' ||
+ lang[2] != '\0'))
{
- high = mid - 1;
- continue;
+ cmp = FcStrCmpIgnoreCase(fcLangCharSets[mid].lang+2,
+ lang+2);
}
- else if (fcLangCharSets[mid].lang[1] < secondChar)
- {
- low = mid + 1;
- continue;
- }
- else if (fcLangCharSets[mid].lang[2] == '\0' && lang[2] == '\0')
- return mid;
-
- else /* identical through the first two charcters, but at least one string didn't end there */
- cmp = FcStrCmpIgnoreCase(fcLangCharSets[mid].lang+2, lang+2);
}
if (cmp == 0)
return mid;