MediaWiki REL1_28
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27abstract class Collation {
28 private static $instance;
34 public static function singleton() {
35 if ( !self::$instance ) {
37 self::$instance = self::factory( $wgCategoryCollation );
38 }
39 return self::$instance;
40 }
48 public static function factory( $collationName ) {
49 switch ( $collationName ) {
50 case 'uppercase':
51 return new UppercaseCollation;
52 case 'numeric':
54 case 'identity':
55 return new IdentityCollation;
56 case 'uca-default':
57 return new IcuCollation( 'root' );
58 case 'uca-default-u-kn':
59 return new IcuCollation( 'root-u-kn' );
60 case 'xx-uca-ckb':
61 return new CollationCkb;
62 case 'xx-uca-et':
63 return new CollationEt;
64 default:
65 $match = [];
66 if ( preg_match( '/^uca-([a-z@=-]+)$/', $collationName, $match ) ) {
67 return new IcuCollation( $match[1] );
68 }
70 # Provide a mechanism for extensions to hook in.
71 $collationObject = null;
72 Hooks::run( 'Collation::factory', [ $collationName, &$collationObject ] );
74 if ( $collationObject instanceof Collation ) {
75 return $collationObject;
76 }
78 // If all else fails...
79 throw new MWException( __METHOD__ . ": unknown collation type \"$collationName\"" );
80 }
81 }
96 abstract function getSortKey( $string );
123 abstract function getFirstLetter( $string );
Specify how category names should be sorted, when listed on a category page.
Workaround for the lack of support of Sorani Kurdish / Central Kurdish language ('ckb') in ICU.
Workaround for incorrect collation of Estonian language ('et') in ICU (bug 54168).
static singleton()
Definition Collation.php:34
getSortKey( $string)
Given a string, convert it to a (hopefully short) key that can be used for efficient sorting.
getFirstLetter( $string)
Given a string, return the logical "first letter" to be used for grouping on category pages and so on...
static $instance
Definition Collation.php:28
static factory( $collationName)
Definition Collation.php:48
Collation class that's essentially a no-op.
MediaWiki exception.
Collation that orders text with numbers "naturally", so that 'Foo 1' < 'Foo 2' < 'Foo 12'.
when a variable name is used in a it is silently declared as a new local masking the global
Definition design.txt:95
injection txt This is an overview of how MediaWiki makes use of dependency injection The design described here grew from the discussion of RFC T384 The term dependency this means that anything an object needs to operate should be injected from the the object itself should only know narrow no concrete implementation of the logic it relies on The requirement to inject everything typically results in an architecture that based on two main types of and essentially stateless service objects that use other service objects to operate on the value objects As of the beginning MediaWiki is only starting to use the DI approach Much of the code still relies on global state or direct resulting in a highly cyclical dependency which acts as the top level factory for services in MediaWiki which can be used to gain access to default instances of various services MediaWikiServices however also allows new services to be defined and default services to be redefined Services are defined or redefined by providing a callback the instantiator that will return a new instance of the service When it will create an instance of MediaWikiServices and populate it with the services defined in the files listed by thereby bootstrapping the DI framework Per $wgServiceWiringFiles lists includes ServiceWiring php
Definition injection.txt:37