libsyntax: Accept "1..3" as the preferred form of "1 to 3" in patterns

2012-08-13 17:37:08 -07:00
parent 36d8682269
commit 55ee06b8ce
4 changed files with 11 additions and 10 deletions
--- a/src/libsyntax/parse/parser.rs
+++ b/src/libsyntax/parse/parser.rs
@@ -1797,7 +1797,7 @@ class parser {
                || self.is_keyword(~"false")
            {
                let val = self.parse_expr_res(RESTRICT_NO_BAR_OP);
-                if self.eat_keyword(~"to") {
+                if self.eat_keyword(~"to") || self.eat(token::DOTDOT) {
                    let end = self.parse_expr_res(RESTRICT_NO_BAR_OP);
                    pat = pat_range(val, end);
                } else {