Template:Xpd
This Template:xpd (expansion demo) shows the call of a variable, parser function or template and its result, for documentation.
- Usage:
- {{ xpd | left side | up to 3 additional parameters }}
Please note that for parser functions the first parameter belongs to the left side before "|".
Examples without additional parameters:
| {{ xpd | tc }} | {{tc}} gives Template:Tc
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| {{ xpd | CURRENTDAY }} | {{CURRENTDAY}} gives 5
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| {{ xpd | #expr:2*3 }} | {{#expr:2*3}} gives 6
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| {{ xpd | 1=#expr:2+2=5 }} | {{#expr:2+2=5}} gives 0
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| {{ xpd | 1=#expr:2+2=4 }} | {{#expr:2+2=4}} gives 1
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| {{ xpd | urlencode:! }} | {{urlencode:!}} gives %21
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| {{ xpd | uc:abc }} | {{uc:abc}} gives ABC
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{{subst:xpd|uc:Upper Case|subst=subst:}} substitutes {{ subst:uc:Upper Case}} gives UPPER CASE
See Help:Substitution for several caveats wrt subst=subst:.
Note that, as always, a parameter containing "=" has to be explicitly named by putting, in this case, "1=" in front.
Template:Xpdn can be used in the case of an expression in double braces which itself includes a pair of double braces (simple nested expressions). Use "|" for the inner "{{" and, if there is code after it, also for "}}".
| {{ xpdn | #expr:24* | CURRENTDAY }} | {{#expr:24*{{CURRENTDAY}} |
| {{ xpdn | #expr:24* | CURRENTDAY | -24 }} | {{#expr:24*{{CURRENTDAY}}-24}} gives 96
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| {{ xpdn | #expr:4* | #expr:not 0 | >3 }} | {{#expr: 4*{{#expr:not 0}} >3}} gives 1
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| {{ xpdn | urlencode: | DIRMARK }} | {{urlencode:{{DIRMARK}} |
Examples with additional parameters (no nesting possible):
| {{ xpd | #ifeq: 1.00 | +1 | okay }} | {{#ifeq: 1.00|+1|okay}} gives okay
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| {{ xpd | #ifeq: this | that||false | s=is }} | {{#ifeq: this|that||false}} is false
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| {{ xpd | t | b }} | {{t|b}} gives Template:T
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| {{ xpd | t2 | b | c }} | {{t2|b|c}} gives Template:T2
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In the case of one or more named parameters, write all parameter definitions from that as value of the appropriate parameter number, e.g.:
- {{xpd|t link|2=wikt=abc|3=}} gives "{{
t link|wikt=abc|}} gives Template:T link"
Optional substitution with subst=subst: is not supported. The demo template shows what another template actually does, and not what it did some time ago.
Separator parameter
- Usage:
- {{ xpd | left side | up to 3 additional parameters | s=separator }}
- {{ xpdn | left side | nested part and optional last part | s=separator }}
- The default separator is "gives", use s== or similar to get "=" etc.
Examples with separator parameter:
| {{ xpd | CURRENTDAY | s=is }} | {{CURRENTDAY}} is 5
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| {{ xpd | 1=#expr:2+2 | s== }} | {{#expr:2+2}} = 4
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| {{ xpdn | #expr:4* | #expr:not 0 | >3 | yields }} | {{#expr: 4*{{#expr:not 0}} >3 }} yields 1
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See also
