This is an auxiliary [[Help:Template|template]] that allows one to encode "<code>|</code>" (pipe or [[vertical bar]]) within template parameters. If it is '''unnecessary''' to get a "<code>|</code>", it is better to use "<code>&#124;</code>". However the "<code>|</code>" delimiter for a [[Wikipedia:How to use tables|Wiki table]] has to be escaped by a template if it is used within a template.
==Notes==
There is no such problem with "<code>!</code>" (exclamation mark). This problem only affects "<code>|</code>" (vertical bar) in conjunction with the [[m:Help:Parameter default]] mechanism within tables.
This template cannot be [[Wikipedia:Template substitution|substituted]].
