Add lineBreak option

Author: Ҽ˿

CHANGELOG.md

@@ -1,3 +1,3 @@
-# 1.0.0 - 2014-12-04
+# 1.0.0 - 2014-12-06
 
-First release 
+First release

README-zh.md

@@ -190,7 +190,31 @@ gulp.watch('src/*.css', ['default']);
 
 ### 选项
 
-**`extensions`** (default: `{}`)
+#### 1. **`lineBreak`**(default: `true`)
+
+设置多个选择器是否换行，默认开启换行。
+
+关闭换行：
+
+```js
+var options = {
+  lineBreak: false
+}
+
+var output = postcss(selector(options))
+  .process(css)
+  .css
+```
+
+「示例1」中的 `input.css` 将输出为：
+
+```css
+article h1 + p, article h2 + p, article h3 + p, article h4 + p, article h5 + p, article h6 + p {
+  margin-top: 0;
+}
+```
+
+#### 2. **`extensions`** (default: `{}`)
 
 该选项允许你自定义一个对象来设置 `<extension-name>`（选择器别名）和 `<selector>`，这些定义将覆盖 CSS 中相同别名的 `@custom-selector`。
 

README.md

@@ -189,7 +189,31 @@ gulp.watch('src/*.css', ['default']);
 
 ### Options
 
-**`extensions`** (default: `{}`)
+#### 1. **`lineBreak`**(default: `true`)
+
+Setting multiple selector whether wrap.
+
+Close the line breaks.
+
+```js
+var options = {
+  lineBreak: false
+}
+
+var output = postcss(selector(options))
+  .process(css)
+  .css
+```
+
+In the 'Example 1' `input.css` will output:
+
+```css
+article h1 + p, article h2 + p, article h3 + p, article h4 + p, article h5 + p, article h6 + p {
+  margin-top: 0;
+}
+```
+
+#### 2. **`extensions`** (default: `{}`)
 
 This option allows you to customize an object to set the `<extension-name>` (selector alias) and `<selector>`, these definitions will cover the same alias of `@custom-selector` in CSS.
 

index.js

@@ -17,6 +17,7 @@ function customSelector(options) {
   return function(styles) {
     options = options || {}
     var extensions = options.extensions || {}
+    var line_break = '\n'
     var map = {}
     var toRemove = []
     var customSelectors = {}
@@ -47,6 +48,11 @@ function customSelector(options) {
       customSelectors[extension] = extensions[extension]
     })
 
+    //控制选择器是否换行
+    if (!options.lineBreak  && options.lineBreak == false) {
+       line_break = ' '
+    }
+
     // 转换自定义的选择器别名
     styles.eachRule(function(rule) {
       for (var prop in customSelectors) {
@@ -58,7 +64,7 @@ function customSelector(options) {
             if ($2 == prop) {
               return customSelector.split(",").map(function(selector) {
                 return $1 + selector.trim() + $3
-              }).join(", ")
+              }).join("," + line_break)
             }
           })