Template:Template link with subst

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This template is used in system messages, and on approximately 51,000 pages.
Changes to it can cause immediate changes to the Wikipedia user interface.
To avoid major disruption, any changes should be tested in the template's /sandbox or /testcases subpages, or in your own user subpage. The tested changes can be added to this page in a single edit. Please discuss changes on the talk page before implementing them.

Shortcuts

{{tls}}
{{tlsp}}

This template uses Lua:

Module:Template link general (sandbox)

This template, often abbreviated as {{tls}}, is used to provide stylized formatting to template displays without actually using the template itself. The code generated will be displayed inline. For a multi-line output, see {{tj}}.

Parameters

With the exception of alttext, the named parameters are toggles that are either omitted (default in most cases) or activated (by being assigned a value such as "on", "yes", "true", "include", etc.). They may be included in any order (see Examples below). Certain templates have the parameter "on" by default; see the main table for all alternate options.

Parameter	Action	Use with {{example}}	Default active
	Default (without accessory parameters)	{{example}}
brace	Include braces as part of the template link	{{example}}	{{tlw}}/{{tn}}
braceinside	Include innermost braces as part of the template link	{{example}}
bold	Renders the template link/name in bold	{{example}}	{{tlb}}, {{tlxb}}
code	Display output using HTML `<code>...</code>` tags (monospaced font)	`{{example}}`	{{tlc}}, {{Template link expanded}}, etc.
italic	Display any parameters accompanying the template link/name in italics	{{example\|param}}	{{tlxi}}
kbd	Display output using HTML `<kbd>...</kbd>` tags (monospaced font)	`{{example}}`
nolink	Don't render the template name as a link	{{example}}	{{tlf}}, {{tnull}}
nowrap	Prevent the insertion of line breaks (word wrap) in the output	{{example}}
nowrapname	Prevent word wrapping in the output of template name/link (parameters will wrap if needed)	{{example}}
plaincode	Uses `<code style="border:none; background:transparent;">...</code>`	`{{example}}`	{{tltss}}
subst	Include a subst: prefix before the template link/name	{{subst:example}}	{{tls}}, {{tlxs}}, etc
alttext=`[text]`	Replace `[text]` with the actual label to be displayed for the template link	{{Other}}	{{tla}}
_show_result	Will also display the result of the template	`{{Min\|7\|-5}}` → -5
_expand	Will add a link to the expanded template page	`{{Min\|7\|-5}}` [1]

Unnamed (Positional)

This template can take any number of unnamed parameters as parameters accompanying the template link (or name); see Examples below.

Examples

Code	Output	Remarks
{{tls\|Banner}}	{{subst:Banner}}	Template:Banner does not exist. (Non-existent template is redlinked.)
{{tls\|Abc}}	{{subst:Abc}}	Template:Abc exists.
{{tls\|abC}}	{{subst:abC}}	Template names are case-sensitive
{{tls\|abc}}	{{subst:abc}}	(but the first letter is case-insensitive).
{{tls\|x0}}	{{subst:x0}}	no parameters
{{tls\|x1\|one}}	{{subst:x1\|one}}	one parameter
{{tls\|x2\|one\|two}}	{{subst:x2\|one\|two}}	two parameters
{{tls\|x3\|1\|2\|3\|4\|5\|6\|7\|8\|9\|10}}	{{subst:x3\|1\|2\|3\|4\|5\|6\|7\|8\|9\|10}}	ten parameters
`{{tlg\|convert\|<nowiki>14\|m\|ftin\|abbr=out\|sp=us</nowiki>}}`	{{subst:convert\|14\|m\|ftin\|abbr=out\|sp=us}}	Unlimited parameters, as one `<nowiki>...</nowiki>` string.
{{tls\|x2\|\|two\|\|}}	{{subst:x2\|two}}	Empty parameters are discarded.
{{tls\|x0\|code=on}}	`{{subst:x0}}`	<code> style
{{tls\|x0\|plaincode=on}}	`{{subst:x0}}`	plaincode style
{{tls\|x0\|kbd=on}}	`{{subst:x0}}`	<kbd> style
{{tls\|x0\|bold=on}}	{{subst:x0}}	bold link/name
{{tls\|x1\|one\|italic=on}}	{{subst:x1\|one}}	parameter(s) in italics
{{tls\|x0\|nolink=on}}	{{x0}}
{{tls\|x0\|subst=on}}	{{subst:x0}}
{{tls\|x0\|brace=on}}	{{subst:x0}}	all braces in link
{{tls\|x0\|braceinside=on}}	{{subst:x0}}	inside braces in link
{{tls\|x0\|alttext=x0 link}}	{{subst:x0 link}}
{{tls\|x0\|bold=on\|code=on\|brace=on}}	`{{subst:x0}}`	Combine multiple parameter settings.
`{{tlg\|x1\|{{spaces}}one{{spaces}}}}`	{{subst:abc\| one }}	Using {{spaces}} before and after a parameter.
{{tls\|x2\|bold=on\|code=on\|one\|two}}	`{{subst:x2\|one\|two}}`	Can combine named and anonymous parameters ...
{{tls\|x2\|one\|two\|bold=on\|code=on}}	`{{subst:x2\|one\|two}}`	... in any order ...
{{tls\|x2\|one\|code=on\|two\|bold=on\|three}}	`{{subst:x2\|one\|two\|three}}`	... even intermixed ...
{{tls\|x2\|one\|code=on\|two\|bold=on\|three\|italic=on}}	`{{subst:x2\|one\|two\|three}}`	... with many configurations.
`{{tlg\|x1\|x=u}}`	{{subst:x1}}	= won't work
`{{tlg\|x1\|x=u}}`	{{subst:x1\|x=u}}	`=` is okay
`{{tlg\|x1\|x{{=}}u}}`	{{subst:x1\|x=u}}	`{{=}}` is okay (see Template:=)
`{{tlg\|x1\|x<nowiki>=</nowiki>u}}`	{{subst:x1\|x=u}}	Sticky nowiki is okay.
{{tls\|x2\|3=two\|2=one}}	{{subst:x2\|one\|two}}	Right-to-left is okay
{{tls}}	tls	With no arguments, it emits the current page name without braces.
{{tls\|x2\|3=one\|4=two}}	{{subst:x2}}	Null parameter stops parsing.

Wrapping of long names (default)
Code	Output
{{tls\|long template name that would wrap to new line\|this is a long value for the 1st parameter that would wrap}}	{{subst:long template name that would wrap to new line\|this is a long value for the 1st parameter that would wrap}}

Wrapping of long names (`nowrap=on`)
Code	Output
{{tls\|nowrap=on\|long template name that would wrap to new line\|long value for the 1st parameter that would wrap}}	{{subst:long template name that would wrap to new line\|long value for the 1st parameter that would wrap}}

Wrapping of long names (`nowrapname=on`)
Code	Output
{{tls\|nowrapname=on\|long template name that would wrap to new line\|long value for the 1st parameter that would wrap}}	{{subst:long template name that would wrap to new line\|long value for the 1st parameter that would wrap}}

Comparison of template-linking templates according to the styles of generated text and link produced
Text style ↓	`{{tlg}}` options^{[note 1]} to achieve text style	Link style
Text style ↓	`{{tlg}}` options^{[note 1]} to achieve text style	Linked	Unlinked	Linked with subst	Unlinked with subst	Linked including braces	Linked with alternative text
`{{tlg}}` options^{[note 1]} to achieve link style	—	DEFAULT	`nolink=yes`	`subst=yes`	`nolink=yes\|subst=yes`	`braceinside=yes`	`alttext=Foo` `2=Foo`
normal	DEFAULT	{{tlg}}^{[note 1]} {{tl}} {{tlp\|1\|2\|...}}^{[note 2]} {{Template:tlu}}^{[note 3]}	{{tlf}}^{[note 2]} ^{<template link>}	{{subst:tls}} {{subst:Template:tlsu}}^{[note 3]}	{{subst:tlsf}}^{[note 2]} ^{<template link>}	{{tn}}	{{tla}}
`code`	`code=yes`	`{{tl2}}` `{{tlx}}` `{{Template:tlxu}}`^{[note 3]}	`{{tlc}}`^{[note 2]} ^{<template link>} `{{tnull}}`^{<template link>}	`{{subst:tlxs}}`	`{{subst:tlsc}}`^{[note 2]} ^{<template link>}	—
monospace	`plaincode=yes`^{[note 4]}	—		{{subst:tltss}}^{[note 5]}	—
`kbd`	`kbd=yes`^{[note 5]}	—		{{subst:tltss}}^{[note 5]}	—
bold	`bold=yes`	{{tlb}}	—
`bold+code`	`bold=yes\|code=yes`	`{{tlxb}}`
`italic+code`	`italic=yes\|code=yes`	`{{tlxi}}`

^ ^a ^b ^c {{tlg}} is the most general template, allowing any combination of text style and/or link style options.
^ ^a ^b ^c ^d ^e Prevents wrapping of text by placing it inside <span class="nowrap">...</span> tags.
^ ^a ^b ^c Allows links to templates in any namespace.
^ {{tlg|plaincode=yes}} uses <code style="border:none; background-color:transparent;">...</code>.
^ ^a ^b Displays monospaced font using <span style="font-family:monospace;">...</span>.

Other formatting templates

Templates producing specialised formatting effects for given templates, modules or parameters
Code example	Effect	Notes
`{{Tj\|Hatnote\|Some text\|selfref: yes\|category: no\|lang: fr}}`	{{Hatnote \| Some text \| selfref = yes \| category = no \| lang = fr }}	Supports colors, placeholder texts, named and unnamed parameters
<syntaxhighlight lang="wikitext"> {{Hatnote \| Some text \| selfref = yes \| category = no \| lang = fr }} </syntaxhighlight>	{{Hatnote \| Some text \| selfref = yes \| category = no \| lang = fr }}	Same as above
`{{Tji\|Hatnote\|Some text\|selfref: yes\|category: no\|lang: fr}}`	{{Hatnote\|Some text\|selfref=yes\|category=no\|lang=fr}}	Supports colors, placeholder texts, named and unnamed parameters
`<syntaxhighlight lang="wikitext" inline>{{Hatnote\|Some text\|selfref=yes\|category=no\|lang=fr}}</syntaxhighlight>`	`{{Hatnote\|Some text\|selfref=yes\|category=no\|lang=fr}}`	Same as above
`{{tl2\|Hatnote\|lang=fr}}`	`{{hatnote}}`	Supports linking to sister projects (e.g., fr:Hatnote)
`{{demo\|<nowiki>{{Hatnote\|lang=fr\|Some text}}</nowiki>}}`	{{hatnote\|lang=fr\|Some text}} Some text	Shows code and example
`{{tln\|Hatnote}}`	Template:Hatnote	Produces a normal link to the template
`{{elc\|Template:Hatnote}}` `{{elc\|Template:Hatnote\|Hatnote}}`	`[[Template:Hatnote]]` `[[Template:Hatnote\|Hatnote]]`	Formats wikilink, with optional piped link text and blended suffix
`{{ml\|Example\|hello}}`	{{#invoke:Example\|hello}}	Counterpart to {{tl}} for linking to Lua modules
`{{mfl\|Example\|hello}}`	{{#invoke:Example\|hello}}	Similar to {{ml}}, but expects the function to be documented and creates a link to the corresponding section
`{{mlx\|Example\|hello}}`	`{{#invoke:Example\|hello}}`	Counterpart to {{tlx}} for linking to Lua modules
`{{ml-lua\|Module:Example\|hello}}`	`require('Module:Example')`	Link to Lua modules and built-in libraries, showing Lua code.
`{{para\|title\|<var>book title</var>}}`	`\|title=book title`	Formats template parameters for display, with or without values
`{{sclx\|LASTING}}`	`[[WP:LASTING]]`	Takes a shortcut suffix in project namespace and displays it with brackets and the WP: alias in a `<code>...</code>` tag.
`{{tag\|ref}}` `{{xtag\|templatedata}}`	`<ref>...</ref>` `<templatedata>`	Formats [X]HTML tags; can add content, choose opening, closing, or self-closing
`{{dtl\|Ping project}}`	{{d:Ping project}}	Wikidata counterpart to {{tl}}
`{{pf\|if}}` `{{pf\|if\|{{{1}}}\|true\|false}}`	{{#if}} {{#if:{{{1}}}\|true\|false}}	Parser function equivalent to {{tl}}
`{{magic word\|uc:}}`	{{uc:}}	Magic word links

With utility links

Templates producing utility links for a given template (Hatnote used here as example)
Code example	Effect
`{{lt\|Hatnote}}`	Template:Hatnote (edit \| talk \| history \| links \| watch \| logs)
`{{lts\|Hatnote}}`	Template:Hatnote(edit talk links history)
`{{t links\|Hatnote}}`	{{Hatnote}} (edit talk history links # /subpages /doc /doc edit /sbox /sbox diff /test)
`{{tfd links\|Hatnote}}`	Template:Hatnote (talk · history · transclusions · logs · subpages)
`{{tetl\|Hatnote}}`	{{Hatnote}} links talk edit
`{{tsetl\|Hatnote}}`	{{subst:Hatnote}} links talk edit
`{{ti\|Hatnote}}`	Template:Hatnote (talk · links · edit)
`{{tic\|Hatnote}}`	Template:Hatnote (talk links edit)
`{{tim\|Hatnote}}`	m:Template:Hatnote (backlinks edit)
`{{tiw\|Hatnote}}`	Template:Hatnote (backlinks edit)
`{{tlt\|Hatnote}}`	{{Hatnote}} (talk)
`{{ttl\|Hatnote}}`	{{Hatnote}} (t/l)
`{{twlh\|Hatnote}}`	Template:Hatnote (links, talk)

The above documentation is transcluded from Template:Tlg/doc.
Editors can experiment in this template's sandbox and testcases pages.
Subpages of this template.

[TlTfn1-1] {{tlg}} is the most general template, allowing any combination of text style and/or link style options.

[TlTfn2-2] Prevents wrapping of text by placing it inside <span class="nowrap">...</span> tags.

[TlTfn3-3] Allows links to templates in any namespace.

[TlTfn4-4] {{tlg|plaincode=yes}} uses <code style="border:none; background-color:transparent;">...</code>.

[TlTfn5-5] Displays monospaced font using <span style="font-family:monospace;">...</span>.

[note 1]

[note 2]

[note 3]

[note 4]

[note 5]

Code example	Effect	Notes
`{{Tj\|Hatnote\|Some text\|selfref: yes\|category: no\|lang: fr}}`	{{Hatnote \| Some text \| selfref = yes \| category = no \| lang = fr }}	Supports colors, placeholder texts, named and unnamed parameters
<syntaxhighlight lang="wikitext"> {{Hatnote \| Some text \| selfref = yes \| category = no \| lang = fr }} </syntaxhighlight>	{{Hatnote \| Some text \| selfref = yes \| category = no \| lang = fr }}	Same as above
`{{Tji\|Hatnote\|Some text\|selfref: yes\|category: no\|lang: fr}}`	{{Hatnote\|Some text\|selfref=yes\|category=no\|lang=fr}}	Supports colors, placeholder texts, named and unnamed parameters
`<syntaxhighlight lang="wikitext" inline>{{Hatnote\|Some text\|selfref=yes\|category=no\|lang=fr}}</syntaxhighlight>`	`{{Hatnote\|Some text\|selfref=yes\|category=no\|lang=fr}}`	Same as above
`{{tl2\|Hatnote\|lang=fr}}`	`{{hatnote}}`	Supports linking to sister projects (e.g., fr:Hatnote)
`{{demo\|<nowiki>{{Hatnote\|lang=fr\|Some text}}</nowiki>}}`	{{hatnote\|lang=fr\|Some text}} Some text	Shows code and example
`{{tln\|Hatnote}}`	Template:Hatnote	Produces a normal link to the template
`{{elc\|Template:Hatnote}}` `{{elc\|Template:Hatnote\|Hatnote}}`	`[[Template:Hatnote]]` `[[Template:Hatnote\|Hatnote]]`	Formats wikilink, with optional piped link text and blended suffix
`{{ml\|Example\|hello}}`	{{#invoke:Example\|hello}}	Counterpart to {{tl}} for linking to Lua modules
`{{mfl\|Example\|hello}}`	{{#invoke:Example\|hello}}	Similar to {{ml}}, but expects the function to be documented and creates a link to the corresponding section
`{{mlx\|Example\|hello}}`	`{{#invoke:Example\|hello}}`	Counterpart to {{tlx}} for linking to Lua modules
`{{ml-lua\|Module:Example\|hello}}`	`require('Module:Example')`	Link to Lua modules and built-in libraries, showing Lua code.
`{{para\|title\|<var>book title</var>}}`	`\|title=book title`	Formats template parameters for display, with or without values
`{{sclx\|LASTING}}`	`[[WP:LASTING]]`	Takes a shortcut suffix in project namespace and displays it with brackets and the WP: alias in a `<code>...</code>` tag.
`{{tag\|ref}}` `{{xtag\|templatedata}}`	`<ref>...</ref>` `<templatedata>`	Formats [X]HTML tags; can add content, choose opening, closing, or self-closing
`{{dtl\|Ping project}}`	{{d:Ping project}}	Wikidata counterpart to {{tl}}
`{{pf\|if}}` `{{pf\|if\|{{{1}}}\|true\|false}}`	{{#if}} {{#if:{{{1}}}\|true\|false}}	Parser function equivalent to {{tl}}
`{{magic word\|uc:}}`	{{uc:}}	Magic word links