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<!-- Please place categories where indicated at the bottom of this page and interwikis at Wikidata (see [[Wikipedia:Wikidata]]) -->
'''<code>WLink</code>''' – Module with functions for strings in context of wikilinks and external links ([[Uniform Resource Locator|URL]]). This module was imported from [[:de:Module:WLink]].
== Usage ==
All functions expect exactly one unnamed parameter (which should be provided to get a meaningful answer). Whitespace ahead and after content is ignored. HTML Entities would not disturb syntax and might be resolved. The parameter might contain single or double bracketed links which would be extracted if appropriate.
The return value is an empty string (“nothing”), if the parameter value does not fulfil the expectations. If there is a result or the query condition is true, at least one visible character will be returned. The result does not begin or end with a space.
; ansiPercent
: Convert string by ANSI encoding rather than UTF-8 encoding
: Required for some 20<sup>th</sup> century servers
: Optional parameter <code>space</code> – encoding of spaces:
:* <code>space=+</code> – common for query components
:* <code>space=_</code> – as for Wikis
:* Default: <code>%20</code>
; formatURL
: Create bracketed link, if not yet, from URL or domain
:* <nowiki>[http://example.org/about Homepage]</nowiki> ''yields'' <nowiki>[http://example.org/about Homepage]</nowiki>
:* <nowiki>http://example.org/about</nowiki> ''yields'' <nowiki>[http://example.org/about example.org/about]</nowiki>
:* example.org ''yields'' <nowiki>[http://example.org/ example.org]</nowiki>
; getArticleBase
: Retrieve generic page title, no fragment nor brackets
: Use current page title, if omitted.
; getBaseTitle
: Retrieve last segment in subpage, no fragment
; getExtension
: Retrieve media extension
: Result is downcased (without leading dot).
; getFile
: Retrieve media page identifier
; getFragment
: Retrieve original (not decoded) fragment string after <code>#</code>
; <s>getLanguage</s>
: Retrieve language identifier
; <s>getNamespace</s>
: Retrieve namespace number
; getPlain
: Retrieve text with all links replaced by link titles
; <s>getProject</s>
: Retrieve project identifier within wikifarm (recommendable brief notation)
; getTarget
: Retrieve first target (wikilink or URL)
; getTargetPage
: Retrieve first target page (page name or URL of page)
: Same as ''getTarget'' if no fragment.
; getTitle
: Retrieve first link title (wikilink or URL), or wikilink target
; isBracketedLink
: Does attempt match a bracketed link?
; isBracketedURL
: Does attempt match a bracketed URL?
; isCategorization
: Does attempt match a categorization?
; isExternalLink
: Does attempt match an external link?
; isInterlanguage
: Does attempt match an interlanguage link?
; isInterwiki
: Does attempt match an interwiki link?
; isMedia
: Does attempt match a media translusion?
; isTitledLink
: Does attempt match a titled link?
; isValidLink
: Does attempt match a link?
; isWeblink
: Does attempt match an external link?
; isWikilink
: Does attempt match a wikilink?
; failsafe
: Version ID: <code>{{#invoke:WLink|failsafe}}</code>
: optional parameter <code>1</code> – required version
:: result: empty, if requirement not met
=== Examples (test page) ===
A [[:de:Wikipedia:Lua/Modul/WLink/Test|test page]] illustrates practical use.
== Functions for Lua modules (API) ==
{{anchor|Lua}}
All functions described above can be used by other modules:
<syntaxhighlight lang="lua">
local lucky, WLink = pcall( require, "Module:WLink" )
if type( WLink ) == "table" then
WLink = WLink.WLink()
else
-- failure; WLink is the error message
return "<span class=\"error\">" .. WLink .. "</span>"
end
</syntaxhighlight>
Subsequently there are available:
* WLink.ansiPercent(story, space)
* WLink.formatURL()
* WLink.getArticleBase()
* WLink.getBaseTitle()
* WLink.getExtension()
* WLink.getFile()
* WLink.getFragment()
*: <code>false</code>, if not found; but empty string if empty fragment.
*: No leading <code>#</code> in result.
* WLink.getLanguage()
* WLink.getNamespace()
* WLink.getPlain()
* WLink.getProject()
* WLink.getTarget()
* WLink.getTargetPage()
* WLink.getTitle()
* WLink.isBracketedLink()
* WLink.isBracketedURL()
* WLink.isCategorization()
* WLink.isExternalLink()
* WLink.isInterlanguage()
* WLink.isInterwiki()
* WLink.isMedia()
* WLink.isTitledLink()
* WLink.isValidLink()
* WLink.isWeblink()
* WLink.isWikilink()
* WLink.wikilink()
*: Yields ''table'' with wikilink components, else <code>false</code>.
*: Components might be, if provided:
*:* <code>lead</code> – leading colon <code>:</code> present and required, if <code>true</code>
*:* <code>project</code> – project interwiki within wikifarm (recommendable brief notation)
*:* <code>lang</code> – known language version (downcased)
*:* <code>ns</code> – number of namespace
*:* <code>space</code> – local canonical name of namespace
*:* <code>title</code> – page title as provided; at least empty string
* WLink.failsafe(atleast)
*:# atleast<br />''optional''<br />''nil'' or required version
*: returns: ''string'' or ''false''
If succeeding, the ''WLink.get*()'' return a string, the ''WLink.is*()'' <code>true</code> (if no exception mentioned); on failure always <code>false</code>.
<!-- Please place categories where indicated at the bottom of this page and interwikis at Wikidata (see [[Wikipedia:Wikidata]]) -->
'''<code>WLink</code>''' – Module with functions for strings in context of wikilinks and external links ([[Uniform Resource Locator|URL]]). This module was imported from [[:de:Module:WLink]].
== Usage ==
All functions expect exactly one unnamed parameter (which should be provided to get a meaningful answer). Whitespace ahead and after content is ignored. HTML Entities would not disturb syntax and might be resolved. The parameter might contain single or double bracketed links which would be extracted if appropriate.
The return value is an empty string (“nothing”), if the parameter value does not fulfil the expectations. If there is a result or the query condition is true, at least one visible character will be returned. The result does not begin or end with a space.
; ansiPercent
: Convert string by ANSI encoding rather than UTF-8 encoding
: Required for some 20<sup>th</sup> century servers
: Optional parameter <code>space</code> – encoding of spaces:
:* <code>space=+</code> – common for query components
:* <code>space=_</code> – as for Wikis
:* Default: <code>%20</code>
; formatURL
: Create bracketed link, if not yet, from URL or domain
:* <nowiki>[http://example.org/about Homepage]</nowiki> ''yields'' <nowiki>[http://example.org/about Homepage]</nowiki>
:* <nowiki>http://example.org/about</nowiki> ''yields'' <nowiki>[http://example.org/about example.org/about]</nowiki>
:* example.org ''yields'' <nowiki>[http://example.org/ example.org]</nowiki>
; getArticleBase
: Retrieve generic page title, no fragment nor brackets
: Use current page title, if omitted.
; getBaseTitle
: Retrieve last segment in subpage, no fragment
; getExtension
: Retrieve media extension
: Result is downcased (without leading dot).
; getFile
: Retrieve media page identifier
; getFragment
: Retrieve original (not decoded) fragment string after <code>#</code>
; <s>getLanguage</s>
: Retrieve language identifier
; <s>getNamespace</s>
: Retrieve namespace number
; getPlain
: Retrieve text with all links replaced by link titles
; <s>getProject</s>
: Retrieve project identifier within wikifarm (recommendable brief notation)
; getTarget
: Retrieve first target (wikilink or URL)
; getTargetPage
: Retrieve first target page (page name or URL of page)
: Same as ''getTarget'' if no fragment.
; getTitle
: Retrieve first link title (wikilink or URL), or wikilink target
; isBracketedLink
: Does attempt match a bracketed link?
; isBracketedURL
: Does attempt match a bracketed URL?
; isCategorization
: Does attempt match a categorization?
; isExternalLink
: Does attempt match an external link?
; isInterlanguage
: Does attempt match an interlanguage link?
; isInterwiki
: Does attempt match an interwiki link?
; isMedia
: Does attempt match a media translusion?
; isTitledLink
: Does attempt match a titled link?
; isValidLink
: Does attempt match a link?
; isWeblink
: Does attempt match an external link?
; isWikilink
: Does attempt match a wikilink?
; failsafe
: Version ID: <code>{{#invoke:WLink|failsafe}}</code>
: optional parameter <code>1</code> – required version
:: result: empty, if requirement not met
=== Examples (test page) ===
A [[:de:Wikipedia:Lua/Modul/WLink/Test|test page]] illustrates practical use.
== Functions for Lua modules (API) ==
{{anchor|Lua}}
All functions described above can be used by other modules:
<syntaxhighlight lang="lua">
local lucky, WLink = pcall( require, "Module:WLink" )
if type( WLink ) == "table" then
WLink = WLink.WLink()
else
-- failure; WLink is the error message
return "<span class=\"error\">" .. WLink .. "</span>"
end
</syntaxhighlight>
Subsequently there are available:
* WLink.ansiPercent(story, space)
* WLink.formatURL()
* WLink.getArticleBase()
* WLink.getBaseTitle()
* WLink.getExtension()
* WLink.getFile()
* WLink.getFragment()
*: <code>false</code>, if not found; but empty string if empty fragment.
*: No leading <code>#</code> in result.
* WLink.getLanguage()
* WLink.getNamespace()
* WLink.getPlain()
* WLink.getProject()
* WLink.getTarget()
* WLink.getTargetPage()
* WLink.getTitle()
* WLink.isBracketedLink()
* WLink.isBracketedURL()
* WLink.isCategorization()
* WLink.isExternalLink()
* WLink.isInterlanguage()
* WLink.isInterwiki()
* WLink.isMedia()
* WLink.isTitledLink()
* WLink.isValidLink()
* WLink.isWeblink()
* WLink.isWikilink()
* WLink.wikilink()
*: Yields ''table'' with wikilink components, else <code>false</code>.
*: Components might be, if provided:
*:* <code>lead</code> – leading colon <code>:</code> present and required, if <code>true</code>
*:* <code>project</code> – project interwiki within wikifarm (recommendable brief notation)
*:* <code>lang</code> – known language version (downcased)
*:* <code>ns</code> – number of namespace
*:* <code>space</code> – local canonical name of namespace
*:* <code>title</code> – page title as provided; at least empty string
* WLink.failsafe(atleast)
*:# atleast<br />''optional''<br />''nil'' or required version
*: returns: ''string'' or ''false''
If succeeding, the ''WLink.get*()'' return a string, the ''WLink.is*()'' <code>true</code> (if no exception mentioned); on failure always <code>false</code>.
