3 files changed, 80 insertions, 6 deletions

diff --git a/hildon/hildon-helper.c b/hildon/hildon-helper.c
index 5dd65c9..76b6596 100644
--- a/hildon/hildon-helper.c
+++ b/hildon/hildon-helper.c
@@ -37,6 +37,7 @@
 #include                                        <config.h>
 #endif
 
+#define _GNU_SOURCE
 #include                                        <string.h>
 #include                                        "hildon-helper.h"
 #include                                        "hildon-banner.h"
@@ -731,3 +732,67 @@ hildon_helper_strip_string (const gchar *string)
 
   return nuni;
 }
+
+/**
+ * hildon_helper_normalize_string:
+ * @string: a string
+ *
+ * Transform a string into an ascii equivalent representation.
+ * This is necessary for hildon_helper_smart_match() to work properly.
+ *
+ * Returns: a newly allocated string.
+ **/
+gchar *
+hildon_helper_normalize_string (const gchar *string)
+{
+    gchar *str = g_convert (string, -1, "ascii//translit", "utf-8", NULL, NULL, NULL);
+
+    return str;
+}
+
+/**
+ * hildon_helper_smart_match:
+ * @haystack: a string where to find a match
+ * @needle: what to find
+ *
+ * Searches for the first occurence of @needle in @haystack. The search
+ * is performed only in the first alphanumeric character after a
+ * sequence of non-alphanumeric ones. This allows smart matching of words
+ * inside more complex strings.
+ *
+ * If @haystack itself doesn't start with an alphanumeric character,
+ * then the search is equivalent to strcasecmp().
+ *
+ * To make the best of this method, it is recommended that both the needle
+ * and the haystack are already normalized as ASCII strings. For this, you
+ * should call hildon_helper_normalize_string() on both strings.
+ *
+ * Returns: a pointer to the first occurence of @needle in @haystack or %NULL
+ * if not found
+ **/
+gchar *
+hildon_helper_smart_match (const gchar *haystack, const gchar *needle)
+{
+    if (haystack == NULL) return NULL;
+    if (needle == NULL) return NULL;
+    if (strlen (haystack) == 0) return NULL;
+
+    gboolean skip_separators = g_ascii_isalnum (needle[0]);
+
+    if (skip_separators) {
+        gint i = 0;
+        while (haystack[i] != '\0') {
+            while (haystack[i] != '\0' && !g_ascii_isalnum (haystack[i]))
+                i++;
+            if (g_ascii_strncasecmp (haystack + i, needle, strlen (needle)) == 0) {
+                return (gchar *)haystack + i;
+            }
+            while (g_ascii_isalnum (haystack[i]))
+                   i++;
+        }
+    } else {
+        return strcasestr (haystack, needle);
+    }
+
+    return NULL;
+}
diff --git a/hildon/hildon-helper.h b/hildon/hildon-helper.h
index 8aad4b3..77e344d 100644
--- a/hildon/hildon-helper.h
+++ b/hildon/hildon-helper.h
@@ -69,6 +69,13 @@ hildon_helper_utf8_strstrcasedecomp_needle_stripped (const gchar *haystack,
 gunichar *
 hildon_helper_strip_string                      (const gchar *string);
 
+gchar *
+hildon_helper_normalize_string                  (const gchar *string);
+
+gchar *
+hildon_helper_smart_match                       (const gchar *haystack,
+                                                 const gchar *needle);
+
 G_END_DECLS
 
 #endif                                          /* __HILDON_HELPER_H__ */
diff --git a/hildon/hildon-touch-selector.c b/hildon/hildon-touch-selector.c
index 876e47f..96d09d8 100644
--- a/hildon/hildon-touch-selector.c
+++ b/hildon/hildon-touch-selector.c
@@ -1004,7 +1004,7 @@ hildon_live_search_visible_func (GtkTreeModel *model,
                                  gpointer userdata)
 {
   gboolean visible = TRUE;
-  gchar *string;
+  gchar *string, *string_ascii;
   GSList *list_iter;
   HildonTouchSelectorColumn *col;
   HildonTouchSelector *selector;
@@ -1014,15 +1014,17 @@ hildon_live_search_visible_func (GtkTreeModel *model,
   gint text_column = GPOINTER_TO_INT (col->priv->text_column);
 
   gtk_tree_model_get (model, iter, text_column, &string, -1);
+  string_ascii = hildon_helper_normalize_string (string);
   list_iter = selector->priv->norm_tokens;
   while (visible && list_iter) {
-    visible = (string != NULL &&
-               hildon_helper_utf8_strstrcasedecomp_needle_stripped (string,
-								    (gunichar *)list_iter->data) != NULL);
+    visible = (string_ascii != NULL &&
+               hildon_helper_smart_match (string_ascii,
+                                          (const gchar *)list_iter->data));
     list_iter = list_iter->next;
   }
 
   g_free (string);
+  g_free (string_ascii);
 
   return visible;
 }
@@ -1034,7 +1036,7 @@ on_live_search_refilter (HildonLiveSearch *livesearch,
     HildonTouchSelector *selector = HILDON_TOUCH_SELECTOR (userdata);
 
     gchar **tokens = g_strsplit (hildon_live_search_get_text (livesearch), " ", -1);
-    gunichar *token;
+    gchar *token;
     gint i;
 
     if (selector->priv->norm_tokens != NULL) {
@@ -1044,7 +1046,7 @@ on_live_search_refilter (HildonLiveSearch *livesearch,
     }
 
     for (i = 0; tokens [i] != NULL; i++) {
-        token = hildon_helper_strip_string (tokens[i]);
+        token = hildon_helper_normalize_string (tokens[i]);
         if (token != NULL)
             selector->priv->norm_tokens = g_slist_prepend (selector->priv->norm_tokens,
                                                            token);