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The template can be used to mark external links.

This template grants that external links will be collected in category:External Link. So we keep an overview of external links and control their actuality routinely.

For Links to pages on the railML®-site (https://railml.org), please use Template:Site.

Please, consider, that the template contains an exception for links to the World Wide Web Consortium (W3C), as there are too many links to W3C data types — we want to avoid the reading flow being disturbed.


Note.png The template requires the extension StringFunctions, comp. https://www.mediawiki.org/wiki/Extension:StringFunctions (external link).


The template has an obligatory and five optional argument:

  • Obligatory; unnamed
    • 1: the link target, e.g. https://uic.org
      Notice: the mediawiki software will misinterpret URLs containing the equality sign (=). Replace equality signs in URLs with the HTML-entity =.
      Example: replace {{external|https://www.railml.org/forum/index.php?t=msg&th=469&start=0&}} with {{external|https://www.railml.org/forum/index.php?t=msg&th=469&start=0&}} as to display https://www.railml.org/forum/index.php?t=msg&th=469&start=0& (external link) (external link)
  • Optional
    • 2 or text: the link text. If it is empty, the link target will be used as link text. This argument can be used both named or unnamed.
    • date: the publication date of the file
    • type: the file type, e.g. PDF
    • lang: the language of the link target file, e.g. EN. For EN, FR, DE, NL, NO, CZ and ES a flag will be displayed. In all other cases the input string will be returned.
    • size: the file size — use only for very big files beyond 25 M!
    • visited: the date when the file was visited
    • inlang: en (=default), de or fr for a notice in the language of the context
    • comment: anything that does not fit into the other parameters; a string to be displayed directly
    • mode: if mode=silent, the link will not be commented.

If the second argument is unnamed (example: {{external|https://example.ex|some example text}}), it will be interpreted as link text. If the second argument is named (example:{{external|https://example.ex|type=some file format}}), it will be interpreted according to the argument name.


Code Output
{{external|https://www.uic.org}} https://www.uic.org (external link)
{{external|https://www.uic.org|International Union of Railways}} International Union of Railways (external link)
{{external|https://www.uic.org|type=HTML}} https://www.uic.org (external link, HTML)
{{external|https://www.uic.org|lang=EN|text=UIC}} UIC (external link, UK flag.png)
{{external|https://www.uic.org|UIC|type=HTML|lang=EN}} UIC (external link, HTML, UK flag.png)
{{external|https://www.w3.org/TR/xmlschema-2/#language}} https://www.w3.org/TR/xmlschema-2/#language
{{external|https://railml.org|mode=silent}} https://railml.org
{{external|https://railml.org|{{rml}} site|mode=silent}} railML® site