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.