Fix string.match for empty pattern

2018-12-16 06:38:23 +02:00
parent 47f8d6e6fc
commit e61e5694fa
1 changed files with 1 additions and 1 deletions
--- a/src/core/org/luaj/vm2/lib/StringLib.java
+++ b/src/core/org/luaj/vm2/lib/StringLib.java
@@ -775,7 +775,7 @@ public class StringLib extends TwoArgFunction {
 			
 			boolean anchor = false;
 			int poff = 0;
-			if ( pat.luaByte( 0 ) == '^' ) {
+			if ( pat.length() > 0 && pat.luaByte( 0 ) == '^' ) {
 				anchor = true;
 				poff = 1;
 			}