Support single character strings using escaped characters

opal · Dec 6, 2013 · eb13fcb · eb13fcb
1 parent f983a92
commit eb13fcb
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Showing 2 changed files with 10 additions and 4 deletions.
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -51,6 +51,8 @@
 *   Fix bug where sometimes the wrong regexp flags would be generated in the
     output javascript.
 
+*   Support single character strings (using ? prefix) with escaped characters.
+
 ## 0.5.5 2013-11-25
 
 *   Fix regression: add `%i[foo bar]` style words back to lexer

diff --git a/lib/opal/parser/lexer.rb b/lib/opal/parser/lexer.rb
@@ -1071,14 +1071,18 @@ def yylex
             return :tEH
           end
 
-          unless check(/\ |\t|\r|\s/)
+          if check(/\ |\t|\r|\s/)
+            @lex_state = :expr_beg
+            return :tEH
+          elsif scan(/\\/)
             @lex_state = :expr_end
-            self.yylval = scan(/./)
+            self.yylval = self.read_escape
             return :tSTRING
           end
 
-          @lex_state = :expr_beg
-          return :tEH
+          @lex_state = :expr_end
+          self.yylval = scan(/./)
+          return :tSTRING
 
         elsif scan(/\~/)
           self.set_arg_state