Fix typo in comment for func Lex
@@ -332,7 +332,7 @@ func (l *Lexer) NextItem(itemp *Item) {
l.lastPos = l.itemp.Pos
}
-// lex creates a new scanner for the input string.
+// Lex creates a new scanner for the input string.
func Lex(input string) *Lexer {
l := &Lexer{
input: input,
