<ac:macro ac:name="unmigrated-inline-wiki-markup"><ac:plain-text-body><![CDATA[

Zend Framework: Zend_Filter_StringPad Component Proposal

Table of Contents

1. Overview

Zend_Filter_StringPad is a filter which allows to extend strings to a specific length.

2. References

• PHP's str_pad

3. Component Requirements, Constraints, and Acceptance Criteria

• This component will correctly handle multi byte strings.
• This component will support the same parameters as PHP's own str_pad method.

4. Dependencies on Other Framework Components

Zend_Filter_Interface
Zend_View_Helper_Abstract

5. Theory of Operation

This filter extends given strings to the wished length. It accepts and other string for extension/padding and default to whitespace if non is given.
It also supports extension from left, right or both sides.
For simplicity this component adds also a view helper which makes use of this filter.

6. Milestones / Tasks

• Milestone 1: [DONE] Proposal finished
• Milestone 2: Proposal accepted
• Milestone 3: Working implementation
• Milestone 4: Unit tests
• Milestone 5: Documentation
• Milestone 6: Moved to core

7. Class Index

• Zend_Filter_StringPad
• Zend_View_Helper_StringPad

8. Use Cases

Extends a string to 15 chars

Extends a string to 15 chars, using another pad char

Extends a string to 15 chars, using another pad char and another direction

9. Class Skeletons