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Zend Framework: Zend_Filter_Minify_Css Component Proposal

Table of Contents

1. Overview

Zend_Filter_Minify_Css is a filter to reduce the size of CSS strings and files, resulting in faster client downloads

2. References

3. Component Requirements, Constraints, and Acceptance Criteria

• This component will minify Css code.
• This compoonent will accept both filenames and strings as input to the filter() method.
• This compoonent will support writing the minified Css to a file.
• This component will implement Zend_Filter_Interface
• This component will generate valid Css code
• This component will provide options for control of minification (such as opting not to remove comments, for example)

4. Dependencies on Other Framework Components

• Zend_Exception
• Zend_Filter

5. Theory of Operation

The component is used like any other Zend_Filter_* component, passing the string (or filename) to be minified to the filter() method

6. Milestones / Tasks

• Milestone 1: design notes will be published here
• Milestone 2: Working prototype checked into the incubator supporting minification of Css strings
• Milestone 3: Working prototype checked into the incubator supporting minification of Css files (and optionally writing output to a file)
• Milestone 4: Unit tests exist, work, and are checked into SVN.
• Milestone 5: Initial documentation exists.

7. Class Index

• Zend_Filter_Minify_Exception
• Zend_Filter_Minify_Javascript

8. Use Cases

9. Class Skeletons