Template:!/doc

This is a documentation subpage for Template:! (see that page for the template itself).
It contains usage information, categories and other content that is not part of the original template page.

This is an auxiliary template allowing to encode "|" within template parameters. It is necessary if the character is used in wiki table syntax, or if the parameter is automatically wikilinked and you wish to use a pipe to specify different link text from the target page name. In other cases it is better to use "|".

This template cannot be used for putting the character as text in a wiki table; in that case, again, "|" can be used.

Note that no special template is needed for "!" (exclamation mark).

This is a high risk template, and it usually cannot be substituted.