API Documentation
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\Text_Wiki_Parse

Baseline rule class for extension into a "real" parser component.

Text_Wiki_Rule classes do not stand on their own; they are called by a Text_Wiki object, typcially in the transform() method. Each rule class performs three main activities: parse, process, and render.

The parse() method takes a regex and applies it to the whole block of source text at one time. Each match is sent as $matches to the process() method.

The process() method acts on the matched text from the source, and then processes the source text is some way. This may mean the creation of a delimited token using addToken(). In every case, the process() method returns the text that should replace the matched text from parse().

Summary

Methods
Properties
Constants
__construct()
parse()
process()
getConf()
getAttrs()
$conf
$regex
$rule
$wiki
No constants found
No protected methods found
No protected properties found
N/A
No private methods found
No private properties found
N/A

Properties

$conf

$conf : string

Configuration options for this parser rule.

Type

string

$regex

$regex : string

Regular expression to find matching text for this rule.

Type

string

$rule

$rule : string

The name of this rule for new token array elements.

Type

string

$wiki

$wiki : object

A reference to the calling Text_Wiki object.

This is needed so that each rule has access to the same source text, token set, URLs, interwiki maps, page names, etc.

Type

object

Methods

__construct()

__construct(  $obj)

Constructor for this parser rule.

Parameters

$obj

parse()

parse()

Abstrct method to parse source text for matches.

Applies the rule's regular expression to the source text, passes every match to the process() method, and replaces the matched text with the results of the processing.

process()

process(array  $matches) : string

Abstract method to generate replacements for matched text.

Parameters

array $matches

An array of matches from the parse() method as generated by preg_replace_callback. $matches[0] is the full matched string, $matches[1] is the first matched pattern, $matches[2] is the second matched pattern, and so on.

Returns

string —

The processed text replacement; defaults to the full matched string (i.e., no changes to the text).

getConf()

getConf(string  $key, mixed  $default = null) : mixed

Simple method to safely get configuration key values.

Parameters

string $key

The configuration key.
mixed $default

If the key does not exist, return this value instead.

Returns

mixed —

The configuration key value (if it exists) or the default value (if not).

getAttrs()

getAttrs(string  $text) : array

Extract 'attribute="value"' portions of wiki markup.

This kind of markup is typically used only in macros, but is useful anywhere.

The syntax is pretty strict; there can be no spaces between the option name, the equals, and the first double-quote; the value must be surrounded by double-quotes. You can escape characters in the value with a backslash, and the backslash will be stripped for you.

Parameters

string $text

The "attributes" portion of markup.

Returns

array —

An associative array of key-value pairs where the key is the option name and the value is the option value.