Difference between revisions of "Template:Issubst/doc"
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imported>PanchoS (refine categorization; rm redundant interwikilinks) |
imported>Pppery (Fix heading level and remove merged templates) |
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{{Documentation subpage}} | {{Documentation subpage}} | ||
| − | + | == Usage === | |
Meta template that returns "yes" if evaluated during substitution, and the empty string if evaluated during transclusion.<br />Note that this template must be used in [[meta:Help:Safesubst|safesubst]] mode to work properly: | Meta template that returns "yes" if evaluated during substitution, and the empty string if evaluated during transclusion.<br />Note that this template must be used in [[meta:Help:Safesubst|safesubst]] mode to work properly: | ||
:<code><nowiki>{{ {{{|safesubst:}}}issubst}}</nowiki></code> | :<code><nowiki>{{ {{{|safesubst:}}}issubst}}</nowiki></code> | ||
| − | + | == Examples == | |
*"<code><nowiki>{{issubst}}</nowiki></code>" → "{{issubst}}" | *"<code><nowiki>{{issubst}}</nowiki></code>" → "{{issubst}}" | ||
*"<code><nowiki>{{subst:issubst}}</nowiki></code>" → "yes" | *"<code><nowiki>{{subst:issubst}}</nowiki></code>" → "yes" | ||
| − | + | {{List of subst helper templates}} | |
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<includeonly> | <includeonly> | ||
[[Category:Boolean, register, and condition testing templates|{{PAGENAME}}]] | [[Category:Boolean, register, and condition testing templates|{{PAGENAME}}]] | ||
</includeonly> | </includeonly> | ||
Revision as of 20:54, 13 September 2016
| This is a documentation subpage for Template:Issubst. It contains usage information, categories and other content that is not part of the original template page. |
Usage =
Meta template that returns "yes" if evaluated during substitution, and the empty string if evaluated during transclusion.
Note that this template must be used in safesubst mode to work properly:
{{ {{{|safesubst:}}}issubst}}
Examples
- "
{{issubst}}" → "" - "
{{subst:issubst}}" → "yes"
List of subst helper templates
- {{require substitution}}: Prints an error unless substituted.
- {{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.
- {{substitution}}: Allows free-fill description of whether the template should be substituted and under what conditions.
- {{issubst}}: Returns "yes" if substituted.
- {{ifsubst}}: Forks if substituted or not.
- Module:Unsubst: Prevents substitution.
- Module:Unsubst-infobox: Prevents substitution for infoboxes, cleans up parameters.