MediaWiki

Erweiterung:TextExtracts

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This extension comes with MediaWiki 1.34 and above. Daher muss sie nicht erneut heruntergeladen werden. Allerdings müssen die folgenden Anweisungen trotzdem beachtet werden.
This extension is under code stewardship review and not actively maintained (task T256505). No new feature requests will be considered during this period.
MediaWiki-Erweiterungen
TextExtracts
Freigabestatus: stabil
Einbindung API
Beschreibung Bietet eine API mit Klartext oder reduzierten HTML-Ausschnitten von Seiteninhalten
Autor(en) Max Semenik (MaxSemDiskussion)
Kompatibilitätspolitik Snapshots werden zusammen mit MediaWiki veröffentlicht. Der Master ist nicht abwärtskompatibel.
MediaWiki >= 1.43
Datenbankänderungen Nein
Lizenz GNU General Public License 2.0 oder neuer
Herunterladen
Erweiterung herunterladen
Git [?]:
Parameter
  • $wgExtractsRemoveClasses
  • $wgExtractsExtendOpenSearchXml
  • $wgExtractsExtendRestSearch
Verwendete Hooks
Quarterly downloads 103 (Ranked 51st)
Public wikis using 2,046 (Ranked 189th)
Übersetze die TextExtracts-Erweiterung, wenn sie auf translatewiki.net verfügbar ist
Probleme Offene Aufgaben · Einen Fehler melden

Die Erweiterung TextExtracts stellt eine API zur Verfügung, die das Abrufen von Klartext- oder reduzierten HTML-Ausschnitten (HTML mit entferntem Inhalt für einige CSS-Klassen) des Seiteninhalts ermöglicht.

Installation

  • Die Erweiterung herunterladen und die Datei(en) in ein Verzeichnis namens TextExtracts im Ordner extensions/ ablegen.
    Entwickler und Code-Beitragende sollten stattdessen die Erweiterung von Git installieren, mit:cd extensions/
    git clone https://gerrit.wikimedia.org/r/mediawiki/extensions/TextExtracts
  • Folgenden Code am Ende deiner LocalSettings.php -Datei einfügen: 
    wfLoadExtension( 'TextExtracts' );
  •   Erledigt – Navigiere zu Special:Version in deinem Wiki, um zu überprüfen, ob die Erweiterung erfolgreich installiert wurde.

Konfiguration

  • $wgExtractsRemoveClasses is an array of <tag>, <tag>.class, .<class>, #<id> which will be excluded from extraction.
  • For example, $wgExtractsRemoveClasses[] = 'dl'; removes indented text, often used for non-templated hatnotes that are not desired in summaries.
  • extension.json defines the defaults, of which the class "noexcerpt" is one - this may be added to any template to exclude it.
  • $wgExtractsExtendOpenSearchXml defines whether TextExtracts should provide its extracts to the Opensearch API module. The default is false.

API

extracts
Returns plain-text or limited HTML extracts of the given pages
Dieses Modul kann nicht als Generator benutzt werden!
Präfix ex
Erforderliche Rechte Keine
nur Beitrag? Nein
generierte Hilfe aktuell


prop=extracts (ex)

(main | query | extracts)

Returns plain-text or limited HTML extracts of the given pages.

Specific parameters:
Other general parameters are available.
exchars

How many characters to return. Actual text returned might be slightly longer.

Type: integer
The value must be between 1 and 1,200.
exsentences

How many sentences to return.

Type: integer
The value must be between 1 and 10.
exlimit

How many extracts to return. (Multiple extracts can only be returned if exintro is set to true.)

Type: integer or max
The value must be between 1 and 20.
Default: 20
exintro

Return only content before the first section.

Type: boolean (details)
explaintext

Return extracts as plain text instead of limited HTML.

Type: boolean (details)
exsectionformat

How to format sections in plaintext mode:

plain
No formatting.
wiki
Wikitext-style formatting (== like this ==).
raw
This module's internal representation (section titles prefixed with <ASCII 1><ASCII 2><section level><ASCII 2><ASCII 1>).
One of the following values: plain, raw, wiki
Default: wiki
excontinue

When more results are available, use this to continue. More detailed information on how to continue queries can be found on mediawiki.org.

Type: integer
Example:
Get a 175-character extract
api.php?action=query&prop=extracts&exchars=175&titles=Therion [open in sandbox]


Another example
api.php?action=query&prop=extracts&exchars=100&explaintext&titles=Earth [In der ApiSandbox ausprobieren]
Ergebnis
{
    "query": {
        "pages": {
            "9228": {
                "pageid": 9228,
                "ns": 0,
                "title": "Earth",
                "extract": "Earth, also called the world and, less frequently, Gaia, (or Terra in some works of science fiction)..."
            }
        }
    }
}

Caveats

There are various things to be aware of when using the API or software that uses the API e.g. Erweiterung:Popups .

  • We do not recommend the usage of `exsentences`.

It does not work for HTML extracts and there are many edge cases for which it doesn't exist. For example "Arm. gen. Ing. John Smith was a soldier." will be treated as 4 sentences. We do not plan to fix this.

  • Inline images are stripped from the response (even in HTML mode). This means if you are using the Math extension and using formulae in your lead section they may not appear in the summary output.
  • In HTML mode we cannot guarantee well formed HTML. Resulting HTML may be invalid or malformed.
  • In plaintext mode:
    • citations may not be stripped (see phab:T197266)
    • if a paragraph ends with an HTML tag e.g. ref tag, new lines may be dropped (see phab:T201946)
    • new lines may be dropped after lists phab:T208132
    • Articles must begin with the lead paragraph for an extract to be generated. The use of any template, and/or unclosed or empty HTML element may result in no preview for the article. E.g. "<div></div>hello" will give an empty extract.

FAQ

How can I remove content from a page preview/extract?

TextExtracts will strip any element that is marked with the class .noexcerpt. This is provided by the $wgExtractsRemoveClasses configuration variable (which also defines some other excluded elements).

Siehe auch

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