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-rw-r--r--js/lib/blocks.js6
1 files changed, 3 insertions, 3 deletions
diff --git a/js/lib/blocks.js b/js/lib/blocks.js
index 86064b5..d53a82f 100644
--- a/js/lib/blocks.js
+++ b/js/lib/blocks.js
@@ -65,10 +65,10 @@ var detabLine = function(text) {
// Return index of match or -1.
var matchAt = function(re, s, offset) {
var res = s.slice(offset).match(re);
- if (res) {
- return offset + res.index;
- } else {
+ if (res === null) {
return -1;
+ } else {
+ return offset + res.index;
}
};