Highlight bits of wikitext. More...

Public Member Functions
	__construct ( $cleanupWikitext=true)

	caseCallback ( $matches)
	Do manual case conversion for non-ascii chars.

	extract ( $text, $start, $end, &$posStart=null, &$posEnd=null)
	Extract part of the text from start to end, but by not chopping up words.

	highlightNone ( $text, $contextlines=self::DEFAULT_CONTEXT_LINES, $contextchars=self::DEFAULT_CONTEXT_CHARS)
	Returns the first few lines of the text.

	highlightSimple ( $text, $terms, $contextlines=self::DEFAULT_CONTEXT_LINES, $contextchars=self::DEFAULT_CONTEXT_CHARS)
	Simple & fast snippet extraction, but gives completely unrelevant snippets.

	highlightText ( $text, $terms, $contextlines=self::DEFAULT_CONTEXT_LINES, $contextchars=self::DEFAULT_CONTEXT_CHARS)
	Wikitext highlighting when $wgAdvancedSearchHighlighting = true.

	linkReplace ( $matches)
	callback to replace [[target\|caption]] kind of links, if the target is category or image, leave it

	position ( $text, $point, $offset=0)
	Find a nonletter near a point (index) in the text.

	process ( $pattern, $extracts, &$linesleft, &$contextchars, &$out, &$offsets)
	Search extracts for a pattern, and return snippets.

	removeWiki ( $text)
	Basic wikitext removal.

	splitAndAdd (&$extracts, &$count, $text)
	Split text into lines and add it to extracts array.

Public Attributes
const	DEFAULT_CONTEXT_CHARS = 75

const	DEFAULT_CONTEXT_LINES = 2

Protected Attributes
	$mCleanWikitext = true

Detailed Description

Highlight bits of wikitext.

Definition at line 31 of file SearchHighlighter.php.

Constructor & Destructor Documentation

◆ __construct()

SearchHighlighter::__construct ( $cleanupWikitext = true )

Warning: If you pass false to this constructor, then the caller is responsible for HTML escaping.

Parameters

bool $cleanupWikitext

Definition at line 42 of file SearchHighlighter.php.

Member Function Documentation

◆ caseCallback()

SearchHighlighter::caseCallback ( $matches )

Do manual case conversion for non-ascii chars.

Parameters

array $matches

Returns: string

Definition at line 328 of file SearchHighlighter.php.

References $matches.

◆ extract()

SearchHighlighter::extract	(		$text,
			$start,
			$end,
		&	$posStart = `null`,
		&	$posEnd = `null`
	)

Extract part of the text from start to end, but by not chopping up words.

Parameters

string	$text
int	$start
int	$end
int \| null	&$posStart	(out) actual start position
int \| null	&$posEnd	(out) actual end position

Returns: string

Definition at line 348 of file SearchHighlighter.php.

References position().

Referenced by highlightText(), and process().

◆ highlightNone()

SearchHighlighter::highlightNone	(	$text,
		$contextlines = `self::DEFAULT_CONTEXT_LINES`,
		$contextchars = `self::DEFAULT_CONTEXT_CHARS`
	)

Returns the first few lines of the text.

Parameters

string	$text
int	$contextlines	Max number of returned lines
int	$contextchars	Average number of characters per line

Returns: string

Definition at line 573 of file SearchHighlighter.php.

◆ highlightSimple()

SearchHighlighter::highlightSimple	(	$text,
		$terms,
		$contextlines = `self::DEFAULT_CONTEXT_LINES`,
		$contextchars = `self::DEFAULT_CONTEXT_CHARS`
	)

Simple & fast snippet extraction, but gives completely unrelevant snippets.

Used when $wgAdvancedSearchHighlighting is false.

Parameters

string	$text
string[]	$terms	Escaped for regex by SearchDatabase::regexTerm()
int	$contextlines
int	$contextchars

Returns: string

Definition at line 518 of file SearchHighlighter.php.

References $line, and $lines.

◆ highlightText()

SearchHighlighter::highlightText	(	$text,
		$terms,
		$contextlines = `self::DEFAULT_CONTEXT_LINES`,
		$contextchars = `self::DEFAULT_CONTEXT_CHARS`
	)

Wikitext highlighting when $wgAdvancedSearchHighlighting = true.

Parameters

string	$text
string[]	$terms	Terms to highlight (not html escaped but regex escaped via SearchDatabase::regexTerm())
int	$contextlines
int	$contextchars

Returns: string

Definition at line 56 of file SearchHighlighter.php.

References $last, $line, $matches, $wgSearchHighlightBoundaries, extract(), NS_FILE, process(), and splitAndAdd().

◆ linkReplace()

SearchHighlighter::linkReplace ( $matches )

callback to replace [[target|caption]] kind of links, if the target is category or image, leave it

Parameters

array $matches

Returns: string

Definition at line 492 of file SearchHighlighter.php.

References $matches, NS_CATEGORY, and NS_FILE.

◆ position()

SearchHighlighter::position	(	$text,
		$point,
		$offset = `0`
	)

Find a nonletter near a point (index) in the text.

Parameters

string	$text
int	$point
int	$offset	Offset to found index

Returns: int Nearest nonletter index, or beginning of utf8 char if none

Definition at line 380 of file SearchHighlighter.php.

References $s.

Referenced by extract().

◆ process()

SearchHighlighter::process	(		$pattern,
			$extracts,
		&	$linesleft,
		&	$contextchars,
		&	$out,
		&	$offsets
	)

Search extracts for a pattern, and return snippets.

Parameters

string	$pattern	Regexp for matching lines
array	$extracts	Extracts to search
int	&$linesleft	Number of extracts to make
int	&$contextchars	Length of snippet
array	&$out	Map for highlighted snippets
array	&$offsets	Map of starting points of snippets

Access:\n protected

Definition at line 421 of file SearchHighlighter.php.

References $line, and extract().

Referenced by highlightText().

◆ removeWiki()

SearchHighlighter::removeWiki ( $text )

Basic wikitext removal.

Access:\n protected

Parameters

string $text

Returns: mixed

Definition at line 464 of file SearchHighlighter.php.

Referenced by splitAndAdd().

◆ splitAndAdd()

SearchHighlighter::splitAndAdd	(	&	$extracts,
		&	$count,
			$text
	)

Split text into lines and add it to extracts array.

Parameters

array	&$extracts	Index -> $line
int	&$count
string	$text

Definition at line 312 of file SearchHighlighter.php.

References $line, and removeWiki().

Referenced by highlightText().

Member Data Documentation

◆ $mCleanWikitext

SearchHighlighter::$mCleanWikitext = true

protected

Definition at line 35 of file SearchHighlighter.php.

◆ DEFAULT_CONTEXT_CHARS

const SearchHighlighter::DEFAULT_CONTEXT_CHARS = 75

Definition at line 33 of file SearchHighlighter.php.

Referenced by SearchEngine\userHighlightPrefs().

◆ DEFAULT_CONTEXT_LINES

const SearchHighlighter::DEFAULT_CONTEXT_LINES = 2

Definition at line 32 of file SearchHighlighter.php.

Referenced by SearchEngine\userHighlightPrefs().

The documentation for this class was generated from the following file:

includes/search/SearchHighlighter.php

Public Member Functions

Public Attributes

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

◆ __construct()

Member Function Documentation

◆ caseCallback()

◆ extract()

◆ highlightNone()

◆ highlightSimple()

◆ highlightText()

◆ linkReplace()

◆ position()

◆ process()

◆ removeWiki()

◆ splitAndAdd()

Member Data Documentation

◆ $mCleanWikitext

◆ DEFAULT_CONTEXT_CHARS

◆ DEFAULT_CONTEXT_LINES