fix: check head indexes before removing

errata-ai · Jun 30, 2022 · 6fc7ecb · 6fc7ecb
1 parent 672511a
commit 6fc7ecb
Showing 1 changed file with 5 additions and 2 deletions.
diff --git a/internal/lint/dita.go b/internal/lint/dita.go
@@ -65,6 +65,9 @@ func (l Linter) lintDITA(file *core.File) error {
 	head1 := bytes.Index(data, []byte("<head>"))
 	head2 := bytes.Index(data, []byte("</head>"))
 
-	return l.lintHTMLTokens(
-		file, append(data[:head1], data[head2:]...), 0)
+	if head1 >= 0 && head2 >= 0 {
+		data = append(data[:head1], data[head2:]...)
+	}
+
+	return l.lintHTMLTokens(file, data, 0)
 }