Rah's Replace

A tiny Textpattern plugin that returns contained content with all searched occurrences replaced with given replacements. This ideally works in the same manner as PHP’s str_replace function, but with a Textpattern’s XML tag.

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Version 0.4.2 May 07, 2013
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Basics

The plugin, rah_replace, introduces a new container tag to Textpattern’s arsenal. The tag returns wrapped content with all found occurrences replaced with given replacements. A tag supports multiple searched occurrences and replacements.

<txp:rah_replace from="value1, value2, ..." to="value1, value2, ...">
	Searched content
</txp:rah_replace>

Attributes

The tag is a container, <txp:rah_replace> ...contained statement... </txp:rah_replace>, and attributes for it follow.

from
Strings that will be searched and replaced with to attribute’s values. Separate multiple values with a comma (or delimiter if changed).
Default: from="" Example: "dog,cat,house"

to
Replacements that will be used to replace from attribute’s values. Comma (or delimiter) separated if multiple.
Default: to="" Example: "ship,home,hat"

delimiter
Sets the delimiter used in from and to to separate multiple values. Default is a comma.
Default: delimiter="," Example: "|"

Examples

Replaces a dog with a cat

<txp:rah_replace from="dog" to="cat">
	My favorite animal is a dog.
</txp:rah_replace>

Returns: My favorite animal is a cat.

Replace multiple needles with different replacements

<txp:rah_replace from="house,dog,Mike" to="boat,friend,wife">
	I live in a house with my dog and Mike.
</txp:rah_replace>

Returns: I live in a boat with my friend and wife.

Replace multiple needles with a one replacement

<txp:rah_replace from="Mike,dad" to="I">
	I remember when dad and Mike did go to fishing.
</txp:rah_replace>

Returns: I remember when I and I did go to fishing.

Using a different delimiter

By default any comma is treated as a delimiter and can not be used as actual value. To use a comma (,) as a needle or a replacement, you would have to change the delimiter to something else. Like for instance to a vertical bar:

<txp:rah_replace from=".|," to="!" delimiter="|">
	A, B, C.
</txp:rah_replace>

Returns: A! B! C!

Changelog

Version 0.4.2 – 2013/05/07

Version 0.4.1 – 2013/04/25

Version 0.4 – 2012/07/12

  • Performance optimization.

Version 0.3 – 2011/04/22

  • Performance optimization.

Version 0.2 – 2009/04/16

  • Added a new attribute: delimiter.

Version 0.1 – 2009/04/16

  • Initial release.