Configuration

This file describes the configuration of the Semantic Breadcrumb Links (SBL) extension.

General

• `$GLOBALS['egSBLTryToFindClosestDescendant']` if enabled SBL will try to find the closest descendant (it will not work for subpages due to missing annotation information).
• `$GLOBALS['egSBLPropertySearchPatternByNamespace']` supports an individual search pattern on a per namespace basis. If no search pattern is declared for a namespace then the search is disabled. It is also possible to use user-defined properties (need to be defined as page-type property) while the amountof properties specified per namespace will be used as maximum depth for possible antecedents matches (parent > grandparent > great-grandparent etc.) that can be found relative to the current subject. If multiple parents or children are available for a subject then only one of each can be displayed due to the nature of the breadcrumb trail.

Note that the display of these aforementioned decendants is limited to 20 (1 shown directly and 19 via the dropdown) for best experience even though more may exist. This limit cannot be changed.

Styling

The output can easily be adjusted using the deployed styles (in res/sbl.styles.css) together with the available configuration settings.

• `$GLOBALS['egSBLBreadcrumbTrailStyleClass']is used to assign a styling class to the breadcrumb trail and deploys withsbl-breadcrumb-trail-boxed,sbl-breadcrumb-trail-light, orsbl-breadcrumb-trail-light-boxed. -$GLOBALS['egSBLBreadcrumbDividerStyleClass']is used to assign a divider styling class and deploys withsbl-breadcrumb-arrowandsbl-breadcrumb-pipe`.

Subpage

• `$GLOBALS['egSBLUseSubpageFinderFallback']if enabled SBL will try to match a hierarchy based on theFoo/Bar/Bazsubpage notation for when a property search returns empty results or a namespace did not describe a property search strategy. IfegSBLUseSubpageFinderFallback` is not enabled then SBL will not try to resolve a possible subpage hierarchy.
• `$GLOBALS['egSBLPageTitleToHideSubpageParent']` if enabled SBL will try to hide the parent part of a subpage title from display when a corresponding namespace entry is found in the wgNamespacesWithSubpages setting.
• `$GLOBALS['egSBLEnabledSubpageParentAnnotation']supports the auto-generation ofHas parent page annotations for subpages. Yet, it will not create any additional assignment ifHas parent pageis already part of theSemanticData. -$GLOBALS['egSBLDisableTranslationSubpageAnnotation']` supports avoiding to create annotations for pages like e.g. "Example/en" where "en" is identified as translation page by the "Translate" extension. Note that this works only for any new translation revision but not for revisions in retrospect.

Default settings

```php $GLOBALS['egSBLBreadcrumbTrailStyleClass'] = 'sbl-breadcrumb-trail-light'; $GLOBALS['egSBLBreadcrumbDividerStyleClass'] = 'sbl-breadcrumb-arrow';

$GLOBALS['egSBLPageTitleToHideSubpageParent'] = true; $GLOBALS['egSBLEnabledSubpageParentAnnotation'] = true; $GLOBALS['egSBLDisableTranslationSubpageAnnotation'] = true;

$GLOBALS['egSBLTryToFindClosestDescendant'] = true; $GLOBALS['egSBLUseSubpageFinderFallback'] = true;

$GLOBALS['egSBLPropertySearchPatternByNamespace'] = [

// Search for a three level sub-category hierarchy
NS_CATEGORY => [
    '_SUBC',
    '_SUBC',
    '_SUBC'
],

// Search for a three level sub-property hierarchy
SMW_NS_PROPERTY => [
    '_SUBP',
    '_SUBP',
    '_SUBP'
],

// Search for a three level antecedent hierarchy that contains a `Has parent page`
// annotation to follow a `parent > grandparent > great-grandparent` schema
NS_MAIN => [
    SBL_PROP_PARENTPAGE,
    SBL_PROP_PARENTPAGE,
    SBL_PROP_PARENTPAGE
],
NS_HELP => [
    SBL_PROP_PARENTPAGE,
    SBL_PROP_PARENTPAGE,
    SBL_PROP_PARENTPAGE
]

];

### Other search strategies

```php

    // Find a relationship on the first iteration using a `Has parent page` and
    // if successful use this input to find a related category (`_INST`) in the
    // following iteration
    $GLOBALS['egSBLPropertySearchPatternByNamespace'][ NS_MAIN ] = [
        SBL_PROP_PARENTPAGE,
        '_INST'
    ];

    // Match the category of a page and then for all succeeding steps
    // try to match an associated sub-category to that category/sub-category
    $GLOBALS['egSBLPropertySearchPatternByNamespace'][ NS_MAIN ] = [
        '_INST',
        '_SUBC',
        '_SUBC'
    ];