api: add infos "nick_color_ignore_case" and "nick_color_name_ignore_case" (issue #194)

src/core/wee-string.c

@@ -394,6 +394,70 @@ string_toupper (const char *string)
     return string_dyn_free (result, 0);
 }
 
+/*
+ * Converts string to lower case (using a range of chars).
+ *
+ * Note: result must be freed after use.
+ */
+
+char *
+string_tolower_range (const char *string, int range)
+{
+    char *result, *ptr_result;
+
+    if (!string)
+        return NULL;
+
+    if (range <= 0)
+        return string_tolower (string);
+
+    result = strdup (string);
+    if (!result)
+        return NULL;
+
+    ptr_result = result;
+    while (ptr_result && ptr_result[0])
+    {
+        if ((ptr_result[0] >= 'A') && (ptr_result[0] < 'A' + range))
+            ptr_result[0] += ('a' - 'A');
+        ptr_result = (char *)utf8_next_char (ptr_result);
+    }
+
+    return result;
+}
+
+/*
+ * Converts string to upper case (using a range of char).
+ *
+ * Note: result must be freed after use.
+ */
+
+char *
+string_toupper_range (const char *string, int range)
+{
+    char *result, *ptr_result;
+
+    if (!string)
+        return NULL;
+
+    if (range <= 0)
+        return string_toupper (string);
+
+    result = strdup (string);
+    if (!result)
+        return NULL;
+
+    ptr_result = result;
+    while (ptr_result && ptr_result[0])
+    {
+        if ((ptr_result[0] >= 'a') && (ptr_result[0] < 'a' + range))
+            ptr_result[0] -= ('a' - 'A');
+        ptr_result = (char *)utf8_next_char (ptr_result);
+    }
+
+    return result;
+}
+
 /*
  * Compares two chars (case sensitive).
  *

src/core/wee-string.h

@@ -44,6 +44,8 @@ extern char *string_reverse_screen (const char *string);
 extern char *string_repeat (const char *string, int count);
 extern char *string_tolower (const char *string);
 extern char *string_toupper (const char *string);
+extern char *string_tolower_range (const char *string, int range);
+extern char *string_toupper_range (const char *string, int range);
 extern int string_charcmp (const char *string1, const char *string2);
 extern int string_charcasecmp (const char *string1, const char *string2);
 extern int string_charcasecmp_range (const char *string1, const char *string2,