fix: don't concatenate an empty regex

errata-ai · Aug 28, 2023 · c87ac4b · c87ac4b
1 parent ea43b41
commit c87ac4b
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Showing 2 changed files with 2 additions and 2 deletions.
diff --git a/internal/check/variables.go b/internal/check/variables.go
@@ -34,7 +34,7 @@ func title(s string, except *regexp2.Regexp, tc *titlecase.TitleConverter, thres
 	words := 0.0
 
 	ps := `[\p{N}\p{L}*]+[^\s]*`
-	if except != nil {
+	if except != nil && except.String() != "" {
 		ps = except.String() + "|" + ps
 	}
 	re := regexp2.MustCompileStd(ps)

diff --git a/testdata/fixtures/styles/demo/test.mdx b/testdata/fixtures/styles/demo/test.mdx
@@ -4,7 +4,7 @@
 
 this is not a heading.
 
-## this is *another* heading!
+## this is _another_ heading!
 
 ## this is another heading!