locate: use g_utf8_casefold() instead of string_toupper()

string_toupper() and strDupToUpper() were not able to deal with
character sets other than US-ASCII.  Use GLib's g_utf8_casefold()
for strings.

src/dbUtils.c

@@ -30,6 +30,8 @@
 #include "log.h"
 #include "storedPlaylist.h"
 
+#include <glib.h>
+
 typedef struct _ListCommandItem {
 	int8_t tagType;
 	int numConditionals;
@@ -103,7 +105,7 @@ int searchForSongsIn(struct client *client, const char *name,
 
 	for (i = 0; i < numItems; i++) {
 		originalNeedles[i] = items[i].needle;
-		items[i].needle = strDupToUpper(originalNeedles[i]);
+		items[i].needle = g_utf8_casefold(originalNeedles[i], -1);
 	}
 
 	data.client = client;
@@ -113,7 +115,7 @@ int searchForSongsIn(struct client *client, const char *name,
 	ret = db_walk(name, searchInDirectory, NULL, &data);
 
 	for (i = 0; i < numItems; i++) {
-		free(items[i].needle);
+		g_free(items[i].needle);
 		items[i].needle = originalNeedles[i];
 	}
 

src/locate.c

@@ -22,6 +22,8 @@
 #include "tag.h"
 #include "song.h"
 
+#include <glib.h>
+
 #define LOCATE_TAG_FILE_KEY     "file"
 #define LOCATE_TAG_FILE_KEY_OLD "filename"
 #define LOCATE_TAG_ANY_KEY      "any"
@@ -132,11 +134,13 @@ strstrSearchTag(struct song *song, enum tag_type type, char *str)
 	int8_t visitedTypes[TAG_NUM_OF_ITEM_TYPES] = { 0 };
 
 	if (type == LOCATE_TAG_FILE_TYPE || type == LOCATE_TAG_ANY_TYPE) {
-		char path_max_tmp[MPD_PATH_MAX];
+		char path_max_tmp[MPD_PATH_MAX], *p;
 
-		string_toupper(song_get_url(song, path_max_tmp));
+		song_get_url(song, path_max_tmp);
+		p = g_utf8_casefold(path_max_tmp, -1);
 		if (strstr(path_max_tmp, str))
 			ret = 1;
+		g_free(p);
 		if (ret == 1 || type == LOCATE_TAG_FILE_TYPE)
 			return ret;
 	}
@@ -151,10 +155,10 @@ strstrSearchTag(struct song *song, enum tag_type type, char *str)
 			continue;
 		}
 
-		duplicate = strDupToUpper(song->tag->items[i]->value);
+		duplicate = g_utf8_casefold(song->tag->items[i]->value, -1);
 		if (*str && strstr(duplicate, str))
 			ret = 1;
-		free(duplicate);
+		g_free(duplicate);
 	}
 
 	/** If the search critieron was not visited during the sweep

src/playlist.c

@@ -37,6 +37,8 @@
 #include "idle.h"
 #include "os_compat.h"
 
+#include <glib.h>
+
 #define PLAYLIST_STATE_STOP		0
 #define PLAYLIST_STATE_PLAY		1
 
@@ -1372,7 +1374,7 @@ void searchForSongsInPlaylist(struct client *client,
 
 	for (i = 0; i < numItems; i++) {
 		originalNeedles[i] = items[i].needle;
-		items[i].needle = strDupToUpper(originalNeedles[i]);
+		items[i].needle = g_utf8_casefold(originalNeedles[i], -1);
 	}
 
 	for (i = 0; i < playlist.length; i++) {
@@ -1381,7 +1383,7 @@ void searchForSongsInPlaylist(struct client *client,
 	}
 
 	for (i = 0; i < numItems; i++) {
-		free(items[i].needle);
+		g_free(items[i].needle);
 		items[i].needle = originalNeedles[i];
 	}
 

src/utils.c

@@ -24,7 +24,6 @@
 
 #include <assert.h>
 #include <string.h>
-#include <ctype.h>
 #include <sys/types.h>
 #include <pwd.h>
 #include <fcntl.h>
@@ -45,23 +44,6 @@ char *myFgets(char *buffer, int bufferSize, FILE * fp)
 	return ret;
 }
 
-char *string_toupper(char *str)
-{
-	int i = strlen(str);
-	char *ret = str;
-
-	for (; --i >= 0; ++str)
-		*str = toupper((int)(*str));
-
-	return ret;
-
-}
-
-char *strDupToUpper(char *str)
-{
-	return string_toupper(xstrdup(str));
-}
-
 void stripReturnChar(char *string)
 {
 	while (string && (string = strchr(string, '\n'))) {

src/utils.h

@@ -31,10 +31,6 @@
 
 char *myFgets(char *buffer, int bufferSize, FILE * fp);
 
-char *string_toupper(char *str);
-
-char *strDupToUpper(char *str); /* avoid, use string_toupper instead */
-
 void stripReturnChar(char *string);
 
 void my_usleep(long usec);