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Allow overriding salt with new one coming later

This commit is contained in:
Akira TAGOH 2019-04-03 04:48:42 +00:00
parent 791762d8b7
commit 91114d18c3
2 changed files with 61 additions and 0 deletions
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3
src/fcint.h
View File

@ -1249,6 +1249,9 @@ FcStrSetAddLangs (FcStrSet *strs, const char *languages);
FcPrivate void
FcStrSetSort (FcStrSet * set);
FcPrivate FcBool
FcStrSetMemberAB (FcStrSet *set, const FcChar8 *a, FcChar8 *b, FcChar8 **ret);
FcPrivate FcBool
FcStrSetAddTriple (FcStrSet *set, const FcChar8 *a, const FcChar8 *b, const FcChar8 *c);

58
src/fcstr.c
View File

@ -1233,6 +1233,58 @@ FcStrSetMember (FcStrSet *set, const FcChar8 *s)
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)
{
@ -1313,6 +1365,7 @@ FcStrSetAddFilenamePairWithSalt (FcStrSet *set, const FcChar8 *a, const FcChar8
{
FcChar8 *new_a = NULL;
FcChar8 *new_b = NULL;
FcChar8 *rs = NULL;
FcBool ret;
if (a)
@ -1331,6 +1384,11 @@ FcStrSetAddFilenamePairWithSalt (FcStrSet *set, const FcChar8 *a, const FcChar8
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);