Template:Code/doc

This is a documentation subpage for Template:Code (see that page for the template itself).
It contains usage information, categories and other content that is not part of the original template page.

Usage[edit]

Wraps a short span of text in <syntaxhighlight> tags (see mediawikiwiki:Extension:SyntaxHighlight GeSHi). This template should be used for short samples; longer content should use <pre>...</pre> or <syntaxhighlight>...</syntaxhighlight>.

If the content includes an equals sign (=), you must specify the parameter explicitly: {{code|1=date=30 Feb 2010}}.

The template uses the <syntaxhighlight> tag with the attribute enclose="none". This works like the combination of the <code> and <nowiki> tags, applied to the expanded wikitext. For example, {{code|some '''wiki''' text}} will not render the word "wiki" in bold, and will render the tripled-single-quotes:

some '''wiki''' text

However, {{code|a {{template}} call}} will still invoke the template:

a {{[[Template:{{{1}}}|{{{1}}}]]}} call

Use <nowiki>...</nowiki> around the template name to avoid this problem:

a {{template}} call

When used inline with regular text, {{code}} generally looks best and is easiest to read when it is explicitly spaced apart from the regular text:

foo  {{code|bar baz}}  quux.

is well spaced:

foo bar baz quux.

versus:

foo {{code|bar baz}} quux.

which is going to be visually confusing for many:

foo bar baz quux.

because "foo" and "bar" will seem more closely associated than "bar" and "baz"; the width of the space character in a monospaced font is almost always larger than in a proportional font.

Use parameter {{{2}}} (unnamed, as |2=, or more explicitly as |lang=) to specify a language for mediawikiwiki:Extension:SyntaxHighlight GeSHi. This option defaults to plain-text, i.e. no highlighting. There is no highlighting option for wikitext as a markup language, though html4strict and html5 are valid values, as are php, perl, css, javascript, mysql and many others. Attempting to use an invalid one causes a list of valid ones to be displayed in place of the template output, when the page is previewed or saved.

This template does not need to be substituted.

Examples[edit]

Markup	Renders as
Lorem {{code\|ipsum '''dolor'''}} sit amet	Lorem `ipsum '''dolor'''` sit amet
The declaration {{code \|lang=cpp \|int foo(const std::string& bar, const std::vector<long double*>& baz);}} is the prototype for a function defined later.	The declaration `int foo(const std::string& bar, const std::vector<long double*>& baz);` is the prototype for a function defined later.
If the code contains an equals sign, such as {{code \|lang=javascript \|code=var img = document.getElementsByTagName("img");}}, you must identify the first parameter explicitly as {{{1}}} or {{{code}}}.	If the code contains an equals sign, such as `var img = document.getElementsByTagName("img");`, you must identify the first parameter explicitly as {{{1}}} or {{{code}}}.

Included templates[edit]

Embedded templates do not function as expected inside {{code}}.

Templates used inside {{code}} expose the rendered HTML— this can be useful. For example:

Markup	Renders as
{{code\| {{cite web \|title=Title \|url=http://example.org}} }}	'"`UNIQ--templatestyles-0000002C-QINU`"'<cite class="citation web cs1">[http://example.org "Title"].</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Title&rft_id=http%3A%2F%2Fexample.org&rfr_id=info%3Asid%2Fwww.festipedia.org.uk%3ATemplate%3ACode%2Fdoc" class="Z3988"></span>

The above example shows the HTML rendered by the citation template, including the hidden metadata.