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- rework-plugin-function
- ====================
-
- [![Build Status](https://travis-ci.org/reworkcss/rework-plugin-function.png)](https://travis-ci.org/reworkcss/rework-plugin-function)
-
- function() plugin for rework, formerly included in core
-
- Add user-defined CSS functions.
-
- For example create `black(0.5)` shortcut, to replace
- long `rgba(0, 0, 0, 0.5)`.
-
- ```js
- var rework = require('rework'),
- var reworkFunction = require('rework-plugin-function');
-
- var css = rework(css)
- .use(reworkFunction({ black: black }))
- .toString()
-
- function black(opacity) {
- return 'rgba(0, 0, 0, ' + opacity + ')';
- }
- ```
-
- User code will receive CSS arguments and replace user-defined function
- by returned code.
-
- ```css
- input {
- box-shadow: 0 0 5px black(0.7);
- }
- ```
-
- yields:
-
- ```css
- input {
- box-shadow: 0 0 5px rgba(0, 0, 0, 0.7);
- }
- ```
-
- Nested functions works well too:
-
- ```javascript
- var css = rework(css)
- .use(reworkFunction({
- subtract: function(a, b) { return a - b },
- multiply: function(a, b) { return a * b },
- divide: function(a, b) { return a / b },
- floor: Math.floor
- }))
- .toString()
- ```
-
- ```css
- input {
- top: divide(subtract(30, floor(multiply(20, 10))), 2);
- }
- ```
-
- Would yield:
-
- ```css
- input {
- top: -85;
- }
- ```
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