Add single character identifiers

2016-12-24 09:07:38 -07:00 · 2016-12-24 09:07:38 -07:00 · f7c28c6732
commit f7c28c6732
parent fd3f6f9f29
3 changed files with 14 additions and 2 deletions
--- a/src/lexer/charset.rs
+++ b/src/lexer/charset.rs
@ -41,3 +41,7 @@ pub fn identifier_subsequents() -> CharSet {
    subsequents.extend(extras.iter());
    subsequents
 }
+
+pub fn identifier_singles() -> CharSet {
+    CharSet::from_iter("+-".chars())
+}