@@ -649,10 +649,17 @@
 static OF_INLINE bool
 of_ascii_isalnum(char c)
 {
 	return (of_ascii_isalpha(c) || (c >= '0' && c <= '9'));
 }
+
+static OF_INLINE bool
+of_ascii_isspace(char c)
+{
+	return (c == ' ' || c == '\t' || c == '\n' || c == '\r' || c == '\f' ||
+	    c == '\v');
+}
 
 static OF_INLINE char
 of_ascii_toupper(char c)
 {
 	return (c >= 'a' && c <= 'z' ? 'A' + (c - 'a') : c);