Add hexadecimal numbers

2014-09-03 08:28:53 +07:00 · 2014-09-03 08:28:53 +07:00 · cc80ba2ef6
parent 16330ce412
commit cc80ba2ef6
2 changed files with 9 additions and 3 deletions
--- a/grammar.coffee
+++ b/grammar.coffee
@ -215,9 +215,13 @@ module.exports = compiler.grammar

    identifier: -> /[\a_$][\a\d_$]*/

-    number: -> token(seq(
-      /\d+/,
-      optional(seq(".", /\d+/))))
+    number: -> token(choice(
+      seq(
+        "0x",
+        /[\da-fA-F]+/),
+      seq(
+        /\d+/,
+        optional(seq(".", /\d*/)))))

    bool_op: -> choice(
      prec(4, seq("!", @expression)),
--- a/grammar_test/expressions.txt
+++ b/grammar_test/expressions.txt
@ -17,10 +17,12 @@ Numbers

 101;
 3.14;
+0x1ABCDEFabcdef;

 ---

 (program
+  (expression_statement (number))
  (expression_statement (number))
  (expression_statement (number)))