From a3129e05ae8054b50d6f9da48cc6af509d5c3252 Mon Sep 17 00:00:00 2001
From: Jeremy Ashkenas <jashkenas@gmail.com>
Date: Tue, 29 Dec 2009 09:25:56 -0500
Subject: [PATCH] allowing indentation in object and array literals

---
 lib/coffee_script/grammar.y |  4 +++-
 lib/coffee_script/lexer.rb  | 28 ++++++++++++++--------------
 2 files changed, 17 insertions(+), 15 deletions(-)

diff --git a/lib/coffee_script/grammar.y b/lib/coffee_script/grammar.y
index 2c64a861..f89d6a9b 100644
--- a/lib/coffee_script/grammar.y
+++ b/lib/coffee_script/grammar.y
@@ -217,10 +217,11 @@ rule
 
   # Assignment within an object literal (comma or newline separated).
   AssignList:
-    /* nothing */                     { result = []}
+    /* nothing */                     { result = [] }
   | AssignObj                         { result = val }
   | AssignList "," AssignObj          { result = val[0] << val[2] }
   | AssignList Terminator AssignObj   { result = val[0] << val[2] }
+  | INDENT AssignList OUTDENT         { result = val[1] }
   ;
 
   # All flavors of function call (instantiation, super, and regular).
@@ -263,6 +264,7 @@ rule
   | Expression                        { result = val }
   | ArgList "," Expression            { result = val[0] << val[2] }
   | ArgList Terminator Expression     { result = val[0] << val[2] }
+  | INDENT ArgList OUTDENT            { result = val[1] }
   ;
 
   # Try/catch/finally exception handling blocks.
diff --git a/lib/coffee_script/lexer.rb b/lib/coffee_script/lexer.rb
index f1a99e5f..dc7c3eb4 100644
--- a/lib/coffee_script/lexer.rb
+++ b/lib/coffee_script/lexer.rb
@@ -36,10 +36,10 @@ module CoffeeScript
     COMMENT_CLEANER = /(^\s*#|\n\s*$)/
 
     # Tokens that always constitute the start of an expression.
-    EXP_START  = ['{', '(', '[']
+    # EXP_START  = ['{', '(', '[']
 
     # Tokens that always constitute the end of an expression.
-    EXP_END    = ['}', ')', ']']
+    # EXP_END    = ['}', ')', ']']
 
     # Assignment tokens.
     ASSIGN     = [':', '=']
@@ -183,8 +183,8 @@ module CoffeeScript
       value = @chunk[OPERATOR, 1]
       tag_parameters if value && value.match(CODE)
       value ||= @chunk[0,1]
-      skip_following_newlines if EXP_START.include?(value)
-      remove_leading_newlines if EXP_END.include?(value)
+      # skip_following_newlines if EXP_START.include?(value)
+      # remove_leading_newlines if EXP_END.include?(value)
       tag = ASSIGN.include?(value) ? :ASSIGN : value
       token(tag, value)
       @i += value.length
@@ -216,18 +216,18 @@ module CoffeeScript
     end
 
     # Consume and ignore newlines immediately after this point.
-    def skip_following_newlines
-      newlines = @code[(@i+1)..-1][NEWLINE, 1]
-      if newlines
-        @line += newlines.length
-        @i += newlines.length
-      end
-    end
+    # def skip_following_newlines
+    #   newlines = @code[(@i+1)..-1][NEWLINE, 1]
+    #   if newlines
+    #     @line += newlines.length
+    #     @i += newlines.length
+    #   end
+    # end
 
     # Discard newlines immediately before this point.
-    def remove_leading_newlines
-      @tokens.pop if last_value == "\n"
-    end
+    # def remove_leading_newlines
+    #   @tokens.pop if last_value == "\n"
+    # end
 
     # Close up all remaining open blocks.
     def close_indentation