From 1e9587710efa8e9338bcf0bc794b4b45f286231d Mon Sep 17 00:00:00 2001
From: Roman Dvornov <rdvornov@gmail.com>
Date: Tue, 21 Mar 2017 23:55:21 +0300
Subject: [PATCH] tweak node generation

---
 lib/syntax/node/AnPlusB.js           | 29 ++++++++++++++--------------
 lib/syntax/node/AttributeSelector.js |  2 +-
 lib/syntax/node/Function.js          |  2 +-
 lib/syntax/node/MediaFeature.js      |  4 ++--
 lib/syntax/node/Ratio.js             |  2 +-
 5 files changed, 20 insertions(+), 19 deletions(-)

diff --git a/lib/syntax/node/AnPlusB.js b/lib/syntax/node/AnPlusB.js
index d91341d6..1bd186ef 100644
--- a/lib/syntax/node/AnPlusB.js
+++ b/lib/syntax/node/AnPlusB.js
@@ -152,25 +152,26 @@ module.exports = {
         };
     },
     generate: function(node) {
-        var result = '';
         var a = node.a !== null && node.a !== undefined;
         var b = node.b !== null && node.b !== undefined;
+        var result;
 
         if (a) {
-            result += node.a === '+1' || node.a === '1' ? 'n' :
-                      node.a === '-1' ? '-n' :
-                      node.a + 'n';
-        }
-
-        if (a && b) {
-            if (String(node.b).charAt(0) !== '-' &&
-                String(node.b).charAt(0) !== '+') {
-                result += '+';
+            result =
+                node.a === '+1' || node.a === '1' ? 'n' :
+                node.a === '-1' ? '-n' :
+                node.a + 'n';
+
+            if (b) {
+                b = String(node.b);
+                if (b.charAt(0) === '-' || b.charAt(0) === '+') {
+                    result = [result, b.charAt(0), b.substr(1)];
+                } else {
+                    result = [result, '+', b];
+                }
             }
-        }
-
-        if (b) {
-            result += node.b;
+        } else {
+            result = String(node.b);
         }
 
         return result;
diff --git a/lib/syntax/node/AttributeSelector.js b/lib/syntax/node/AttributeSelector.js
index 4ae41f27..f26a5a70 100644
--- a/lib/syntax/node/AttributeSelector.js
+++ b/lib/syntax/node/AttributeSelector.js
@@ -151,7 +151,7 @@ module.exports = {
         }
 
         if (node.flags !== null) {
-            result.push(flagsPrefix + node.flags);
+            result.push(flagsPrefix, node.flags);
         }
 
         result.push(']');
diff --git a/lib/syntax/node/Function.js b/lib/syntax/node/Function.js
index 3d14ae70..a7f0b110 100644
--- a/lib/syntax/node/Function.js
+++ b/lib/syntax/node/Function.js
@@ -33,7 +33,7 @@ module.exports = {
         };
     },
     generate: function(node) {
-        return [].concat(node.name, '(', this.each(node.children), ')');
+        return [].concat(node.name + '(', this.each(node.children), ')');
     },
     walkContext: 'function'
 };
diff --git a/lib/syntax/node/MediaFeature.js b/lib/syntax/node/MediaFeature.js
index 4bd9c83b..26100792 100644
--- a/lib/syntax/node/MediaFeature.js
+++ b/lib/syntax/node/MediaFeature.js
@@ -63,7 +63,7 @@ module.exports = {
     },
     generate: function(node) {
         return node.value !== null
-            ? ['(' + node.name + ':', this.generate(node.value), ')']
-            : '(' + node.name + ')';
+            ? ['(', node.name, ':', this.generate(node.value), ')']
+            : ['(', node.name, ')'];
     }
 };
diff --git a/lib/syntax/node/Ratio.js b/lib/syntax/node/Ratio.js
index b298f597..cdc5ffa3 100644
--- a/lib/syntax/node/Ratio.js
+++ b/lib/syntax/node/Ratio.js
@@ -50,6 +50,6 @@ module.exports = {
         };
     },
     generate: function(node) {
-        return node.left + '/' + node.right;
+        return [node.left, '/', node.right];
     }
 };