This is an auxiliary template allowing the encoding of "
|" 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).
There may be issues with using "subst:" i.e. substituting in the template.
See Wikipedia:Template:! for more details.
This page taken from Wikipedia:Template:!