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{{Documentation subpage}}
This template is like the [[mw:Help:Extension:ParserFunctions##switch|#switch]] function, but preserves [[help:newlines and spaces|newlines and spaces]] from the start and end of the possible values (not from the values used in the conditions, if that is desired, put them all in quotes). A default value is required as second parameter:

*"<nowiki>{{sw|p| d |p| q }}</nowiki>" gives "{{sw|p| d |p| q }}".
*"<nowiki>{{sw|r| d |p| q }}</nowiki>" gives "{{sw|r| d |p| q }}".

*"<nowiki>{{sw|p| d |p| q |r| s }}</nowiki>" gives "{{sw|p| d |p| q |r| s }}".
*"<nowiki>{{sw|r| d |p| q |r| s }}</nowiki>" gives "{{sw|r| d |p| q |r| s }}".
*"<nowiki>{{sw|t| d |p| q |r| s }}</nowiki>" gives "{{sw|t| d |p| q |r| s }}".

*"<nowiki>{{sw|p| d |p| q |r| s |t| u }}</nowiki>" gives "{{sw|p| d |p| q |r| s |t| u }}".
*"<nowiki>{{sw|r| d |p| q |r| s |t| u }}</nowiki>" gives "{{sw|r| d |p| q |r| s |t| u }}".
*"<nowiki>{{sw|t| d |p| q |r| s |t| u }}</nowiki>" gives "{{sw|t| d |p| q |r| s |t| u }}".
*"<nowiki>{{sw|v| d |p| q |r| s |t| u }}</nowiki>" gives "{{sw|v| d |p| q |r| s |t| u }}".

*"<nowiki>{{sw|v| d |p| q |r| s |t| u |v| w }}</nowiki>" gives "{{sw|v| d |p| q |r| s |t| u |v| w }}".
*"<nowiki>{{sw|v| d |p| q |r| s |t| u |v| w |x| y }}</nowiki>" gives "{{sw|v| d |p| q |r| s |t| u |v| w |x| y}}".
*"<nowiki>{{sw|x| d |p| q |r| s |t| u |v| w |x| y }}</nowiki>" gives "{{sw|x| d |p| q |r| s |t| u |v| w |x| y}}".

The template can be easily extended to allow more parameters.

==#switch==
A call of <code>#switch</code> essentially takes an ''n'' × 2 array ([[w:lookup table|lookup table]]), with key values in the first column and result values in the second column, a default value, and a control value, and returns the result value corresponding to the first key value which is equal to the control value, if any, and otherwise the default value.

The call of <code>#switch</code> corresponds to a nesting of <code>[[Template:If#.23ifeq:|#ifeq]]</code>, so equality is defined in the same way as for <code>#ifeq</code>:

*<code><nowiki>{{sw| 1e3 | 0 | 1000 | 1 }}</nowiki></code> gives "{{sw| 1e3 | 0 | 1000 | 1 }}".
*<code><nowiki>{{#switch: 1e3 | 1000 = 1 | 0 }}</nowiki></code> gives "{{#switch: 1e3 | 1000 = 1 | 0 }}".
*<code><nowiki>{{sw| e | 0 | E | 1 }}</nowiki></code> gives "{{sw| e | 0 | E | 1 }}".
*<code><nowiki>{{#switch: e | E = 1 | 0 }}</nowiki></code> gives "{{#switch: e | E = 1 | 0 }}".
*<code><nowiki>{{sw| pi | 0 | PI | 1 }}</nowiki></code> gives "{{sw| pi | 0 | PI | 1 }}".
*<code><nowiki>{{#switch: pi | PI = 1 | 0 }}</nowiki></code> gives "{{#switch: pi | PI = 1 | 0 }}".

==See also==
*[[Template:If]]
*[[Manual:Representing arrays]]

<includeonly>
[[Category:Templates]]
</includeonly>

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