From a8a91949fafae8e1e647f5bf980d0ce8972a75d0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Konstantin=20K=C3=A4fer?= <github@kkaefer.com>
Date: Thu, 20 Jan 2011 11:15:17 -0500
Subject: [PATCH 1/3] doc

---
 lib/mess/parser.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/mess/parser.js b/lib/mess/parser.js
index b08eb20..466d895 100644
--- a/lib/mess/parser.js
+++ b/lib/mess/parser.js
@@ -351,6 +351,10 @@ mess.Parser = function Parser(env) {
                 };
             })();
 
+            /**
+             * Splits up rulesets with multiple selectors into individual rulesets
+             * that only have one selector, but the same rules.
+             */
             var splitSelectors = function(rulesets) {
                 return rulesets.reduce(function(result, ruleset) {
                     ruleset.selectors.forEach(function(selector) {

From 004578c2b64b45ee566315b77c89d11edcc01b2c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Konstantin=20K=C3=A4fer?= <github@kkaefer.com>
Date: Thu, 20 Jan 2011 11:45:29 -0500
Subject: [PATCH 2/3] add definition class for flattened rulesets

---
 lib/mess/index.js           |  2 +-
 lib/mess/parser.js          | 16 +---------------
 lib/mess/tree/definition.js |  8 ++++++++
 lib/mess/tree/ruleset.js    | 13 ++++++-------
 4 files changed, 16 insertions(+), 23 deletions(-)
 create mode 100644 lib/mess/tree/definition.js

diff --git a/lib/mess/index.js b/lib/mess/index.js
index f7d84c1..1ed201d 100644
--- a/lib/mess/index.js
+++ b/lib/mess/index.js
@@ -82,7 +82,7 @@ var mess = {
  'selector', 'quoted',    'expression', 'rule',
  'call',     'url',       'alpha',      'import',
  'mixin',    'comment',   'anonymous',  'value', 'javascript',
- 'comparison', 'reference', 'filter'
+ 'comparison', 'reference', 'filter',   'definition'
 ].forEach(function (n) {
     require(path.join('mess', 'tree', n));
 });
diff --git a/lib/mess/parser.js b/lib/mess/parser.js
index 466d895..bc240c3 100644
--- a/lib/mess/parser.js
+++ b/lib/mess/parser.js
@@ -314,8 +314,7 @@ mess.Parser = function Parser(env) {
                         options.compress : (env.compress || false);
 
                     try {
-                        var rulesets = this.flatten();
-                        rulesets = splitSelectors(rulesets);
+                        var rulesets = this.flatten([]);
                         rulesets.sort(specificitySort);
                         return rulesets;
                     }
@@ -351,19 +350,6 @@ mess.Parser = function Parser(env) {
                 };
             })();
 
-            /**
-             * Splits up rulesets with multiple selectors into individual rulesets
-             * that only have one selector, but the same rules.
-             */
-            var splitSelectors = function(rulesets) {
-                return rulesets.reduce(function(result, ruleset) {
-                    ruleset.selectors.forEach(function(selector) {
-                       result.push({ selector: selector, rules: ruleset.rules });
-                    });
-                    return result;
-                }, []);
-            };
-
             /**
              * Sort rules by specificity: this function expects selectors to be
              * split already.
diff --git a/lib/mess/tree/definition.js b/lib/mess/tree/definition.js
new file mode 100644
index 0000000..0e91eab
--- /dev/null
+++ b/lib/mess/tree/definition.js
@@ -0,0 +1,8 @@
+(function(tree) {
+
+tree.Definition = function(selector, rules) {
+    this.selector = selector;
+    this.rules = rules;
+};
+
+})(require('mess/tree'));
diff --git a/lib/mess/tree/ruleset.js b/lib/mess/tree/ruleset.js
index 45aaa42..6125be0 100644
--- a/lib/mess/tree/ruleset.js
+++ b/lib/mess/tree/ruleset.js
@@ -131,7 +131,7 @@ tree.Ruleset.prototype = {
     },
 
 
-    flatten: function(parentSelectors) {
+    flatten: function(result, parentSelectors) {
         var selectors = [];
         for (var i = 0; i < this.selectors.length; i++) {
             var selector = this.selectors[i];
@@ -156,12 +156,11 @@ tree.Ruleset.prototype = {
         }
 
         var rules = [];
-        var rulesets = [];
         for (var i = 0; i < this.rules.length; i++) {
             var rule = this.rules[i];
 
             if (rule instanceof tree.Ruleset) {
-                Array.prototype.push.apply(rulesets, rule.flatten(selectors));
+                rule.flatten(result, selectors);
             }
             else {
                 rule.value = rule.value.value[0];
@@ -169,11 +168,11 @@ tree.Ruleset.prototype = {
             }
         }
 
-        var ruleset = new tree.Ruleset(selectors, rules);
-        ruleset.flattened = true;
-        rulesets.push(ruleset);
+        for (var i = 0; i < selectors.length; i++) {
+            result.push(new tree.Definition(selectors[i], rules));
+        }
 
-        return rulesets;
+        return result;
     },
 
     toMSS: function(env) {

From ef597af7c0d7b69bfc222551c565f94991817f0a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Konstantin=20K=C3=A4fer?= <github@kkaefer.com>
Date: Thu, 20 Jan 2011 11:48:00 -0500
Subject: [PATCH 3/3] rename rulesets to definitions

---
 lib/mess/parser.js | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/lib/mess/parser.js b/lib/mess/parser.js
index bc240c3..07fc073 100644
--- a/lib/mess/parser.js
+++ b/lib/mess/parser.js
@@ -314,9 +314,9 @@ mess.Parser = function Parser(env) {
                         options.compress : (env.compress || false);
 
                     try {
-                        var rulesets = this.flatten([]);
-                        rulesets.sort(specificitySort);
-                        return rulesets;
+                        var definitions = this.flatten([]);
+                        definitions.sort(specificitySort);
+                        return definitions;
                     }
                     catch (e) {
                         lines = input.split('\n');