Template:!/doc

{{#ifeq: doc | doc

 | 

{{

   #ifeq: show | show
   | {{
 {{#switch:
 {{#if: 
   | 
   | {{#if: 
     | 
       {{#ifeq:|
       | talk
       |  
       }}
     | 
       {{#ifeq:template|template talk
       | talk
       | template 
       }}
     }}
   }}

| main | = ambox | talk = tmbox | user = ombox | wikipedia = ombox | file | image = imbox | mediawiki = ombox | template = ombox | help = ombox | category = cmbox | portal = ombox | book = ombox | other | #default = ombox

}} | type = notice | image = 40px | imageright = | class = | style = | textstyle = | text = This is a documentation subpage for Template:!.
It contains usage information, categories, interlanguage links and other content that is not part of the original {{ #if: | {{{text2}}} | {{ #if: | {{{text1}}} | {{ #ifeq: Template | User | template template page | {{ #if: Template |template page|article}}}}}}}}. | small = | smallimage = | smallimageright = | smalltext = | subst = | date = }}

   }}{{
   #if: 
   | 
   | {{#ifexist:Template:!|[[Category:{{
     #switch: Template
     | Template  = Template
     | User      = User
     | #default  = Wikipedia
   }} documentation pages]]|}}
 }}

| }} {{#ifeq:|yes

|

{{#ifeq:{{#if:| {{{smallimage}}} | }}|none | | }}

{{#if:{{#if: | {{{smallimageright}}} | }} | {{#ifeq:{{#if: | {{{smallimageright}}} | }}|none

 | 

|

 }}

}}

{{#switch:content

| | speedy | delete | content | style | move | protection | notice =

| #default =

This message box is using an invalid "type=content" parameter and needs fixing.

}}

|

{{#ifeq:|none | | }}

{{#if: | {{#ifeq:|none

 | 

|

 }}

}}

{{#switch:content

| | speedy | delete | content | style | move | protection | notice =

| #default =

This message box is using an invalid "type=content" parameter and needs fixing.

}} }}

Usage

This is the {{!}} meta-template. Its use is analogous to an escape character.

This is an auxiliary template allowing the encoding of "|" within template parameters, because the pipe character is normally interpreted as a separator. This template 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 (see conditions for substing on the section below).

Substitution

It is possible to substitute {{!}} only if an unescaped "|" works as expected, i.e. after substituting the template containing {{!}}, or after eliminating an #if containing {{!}}.

A simple example

The following template code for {{Quotation}} using an ordinary pipe character,

• {{Quotation|It is not possible to use an ordinary pipe character | in template parameters, as it will be interpreted as a separator.|[[Help:Template#Usage hints and workarounds]]}}

produces:

It is not possible to use an ordinary pipe character

{{#if: in template parameters, as it will be interpreted as a separator.

|

— in template parameters, as it will be interpreted as a separator.{{#if:Help:Template#Usage hints and workarounds |, Help:Template#Usage hints and workarounds }}{{#if: |, {{{4}}} }}

}}

whereas this code using the {{!}} meta-template,

• {{Quotation|It is not possible to use an ordinary pipe character {{!}} in template parameters, as it will be interpreted as a separator.|[[Help:Template#Usage hints and workarounds]]}}

produces:

It is not possible to use an ordinary pipe character | in template parameters, as it will be interpreted as a separator.

{{#if:Help:Template#Usage hints and workarounds

|

— Help:Template#Usage hints and workarounds{{#if: |, {{{3}}} }}{{#if: |, {{{4}}} }}

}}

See also

• {{!!}}
• {{!-}} creates |-
• {{-!}}
• {{'}} and related
• Wikipedia:Conditional tables
• {{pipe}} - Note that this one looks like {{{{#if:!|!| tlf|...}}{{#ifeq:x|| |{{{2}}} | }}{{#ifeq:x|| |{{{3}}} | }}{{#ifeq:x|| |{{{4}}} | }}{{#ifeq:x|| |{{{5}}} | }}{{#ifeq:x|| |{{{6}}} | }}{{#ifeq:x|| |{{{7}}} | }}{{#ifeq:x|| |{{{8}}} | }}{{#ifeq:x|| |{{{9}}} | }}}} but has a very different meaning for the MediaWiki parser and thus has different functionality.
• {{(}} creates {
• {{((}} creates {{
• {{!(}}
• {{=}}