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Diffstat (limited to 'subex')
-rw-r--r--subex/parse.go6
1 files changed, 5 insertions, 1 deletions
diff --git a/subex/parse.go b/subex/parse.go
index 1e5e36e..24ff3d1 100644
--- a/subex/parse.go
+++ b/subex/parse.go
@@ -356,5 +356,9 @@ func parseSubex(l RuneReader, minPower int) SubexAST {
}
func Parse(l RuneReader) SubexAST {
- return parseSubex(l, 0)
+ ast := parseSubex(l, 0)
+ if ast == nil {
+ return SubexASTEmpty{}
+ }
+ return ast
}