Template:List of subst helper templates

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 . 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.