Template:Substitution/doc

Template page

Examples

With middle text but no additional text at the end

{{Substitution|not}}

produces:

With both middle text and additional text at the end

{{Substitution|only (at least as of 2024)|if temperatures fall and it starts to snow}}

produces:

With no middle text but some additional text at the end

{{Substitution| |if you wish to ensure your emoji's image remains the same even if its template's image is changed}}

produces:

TemplateData

This is the TemplateData for this template used by TemplateWizard, VisualEditor and other tools. Click here to see a monthly parameter usage report for this template in articles based on this TemplateData.

TemplateData for Substitution

Use this template to add a message box to a template's documentation subpage indicating if and how that template should be substituted.

Template parameters

ParameterDescriptionTypeStatus
1first parameter

Inserts any helpful or instructive text in bold font such as 'always' or 'never' between the words 'should' and 'be' in the resulting message box; if no such instruction is desired, this parameter should be entered as a single blank typed space (in this sense, the parameter is required: it must be an instructive word OR it must be a blank typed space—it must NOT be left with no entry

Example
never
Stringrequired
2second parameter

This parameter takes any text you add to it and places it at the end of the sentence that the message box generates; it should NOT end in a period

Default
Example
unless older versions cannot be found
Stringoptional

See also

List of subst helper templates

  • {{require substitution}} – Prints an error unless substituted.
  • {{substituted or transcluded}} – if-then-else metatemplate that checks if a template is currently being substituted or transcluded
    • {{always substitute}} – For the doc of the above templates; prints a message asking for it be substituted.
    • {{never substitute}} – The reverse of {{always substitute}}. For the doc of templates which should not be substituted; prints a message asking for it not to be substituted.
    • {{may be substituted}} – For the doc of templates whose substitution is optional.
    • {{substitution}} – Allows free-fill description of whether the template should be substituted and under what conditions.
  • {{ifsubst}} – Forks if substituted or not.
  • {{issubst}} – Returns "yes" if substituted.
  • {{HTML comment}} – To sign substitutions with comments that contain wikitext expansions
  • Module:Unsubst – Prevents substitution.
  • Module:Unsubst-infobox – Prevents substitution for infoboxes, cleans up parameters.