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authorNils Philippsen <nils@tiptoe.de>2013-12-10 21:29:24 +0100
committerNils Philippsen <nils@tiptoe.de>2013-12-10 23:07:47 +0100
commit96947e2f3a74e5f738c763db7dfa42b1269a3903 (patch)
treef967f21b3d1b5b0b3e0e923a1b3e4794122457be /libs/ardour/utils.cc
parente5ae775b42ea98587603ee273ca23394a113d44c (diff)
add cmp_nocase_utf8()
This is like cmp_nocase(), only that it doesn't use toupper(), tolower() and therefore is agnostic of the current locale, and attempts to compare strings in a UTF8-aware way (or falls back to ASCII if one of the strings isn't UTF8-encoded).
Diffstat (limited to 'libs/ardour/utils.cc')
-rw-r--r--libs/ardour/utils.cc35
1 files changed, 35 insertions, 0 deletions
diff --git a/libs/ardour/utils.cc b/libs/ardour/utils.cc
index 0c98461974..aa06912913 100644
--- a/libs/ardour/utils.cc
+++ b/libs/ardour/utils.cc
@@ -232,6 +232,41 @@ cmp_nocase (const string& s, const string& s2)
return (s2.size() == s.size()) ? 0 : (s.size() < s2.size()) ? -1 : 1;
}
+int cmp_nocase_utf8 (const string& s1, const string& s2)
+{
+ const char *cstr1 = s1.c_str();
+ const char *cstr2 = s2.c_str();
+ gchar *cstr1folded = NULL;
+ gchar *cstr2folded = NULL;
+ int retval;
+
+ if (!g_utf8_validate (cstr1, -1, NULL) ||
+ !g_utf8_validate (cstr2, -1, NULL)) {
+ // fall back to comparing ASCII
+ return g_ascii_strcasecmp (cstr1, cstr2);
+ }
+
+ cstr1folded = g_utf8_casefold (cstr1, -1);
+ cstr2folded = g_utf8_casefold (cstr2, -1);
+
+ if (cstr1folded && cstr2folded) {
+ retval = strcmp (cstr1folded, cstr2folded);
+ } else {
+ // this shouldn't happen, make the best of it
+ retval = g_ascii_strcasecmp (cstr1, cstr2);
+ }
+
+ if (cstr1folded) {
+ g_free (cstr1folded);
+ }
+
+ if (cstr2folded) {
+ g_free (cstr2folded);
+ }
+
+ return retval;
+}
+
int
touch_file (string path)
{