misc.c: Add a str_reject_chars function, use it in otr_filter_colors

1 files changed, 16 insertions, 0 deletions

diff --git a/lib/misc.c b/lib/misc.c
index 9384ac4c..1c93f65a 100644
--- a/lib/misc.c
+++ b/lib/misc.c
@@ -770,3 +770,19 @@ gboolean parse_int64(char *string, int base, guint64 *number)
 	return TRUE;
 }
 
+/* Filters all the characters in 'blacklist' replacing them with 'replacement'.
+ * Modifies the string in-place and returns the string itself.
+ * For the opposite, use g_strcanon() */
+char *str_reject_chars(char *string, const char *reject, char replacement)
+{
+	char *c = string;
+
+	while (*c) {
+		c += strcspn(c, reject);
+		if (*c) {
+			*c = replacement;
+		}
+	}
+
+	return string;
+}