Refactor into is_subset function

1 files changed, 10 insertions, 4 deletions

diff --git a/match.c b/match.c
index dc79660..abd928e 100644
--- a/match.c
+++ b/match.c
@@ -1,12 +1,18 @@
 #include <ctype.h>
 
-double match(const char *needle, const char *haystack){
+static int is_subset(const char *needle, const char *haystack){
 	while(*needle){
 		if(!*haystack)
-			return 0.0;
-		while(*haystack && tolower(*needle) == tolower(*haystack++)){
+			return 0;
+		while(*haystack && tolower(*needle) == tolower(*haystack++))
 			needle++;
-		}
+	}
+	return 1;
+}
+
+double match(const char *needle, const char *haystack){
+	if(!is_subset(needle, haystack)){
+		return 0.0;
 	}
 	return 1.0;
 }