Template:Evd

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This template m:Template:evd (talk, backlinks, edit) shows the call of a template or predefined template and its result, for documentation.|

Usage:

{{Evd|left side|up to 3 additional parameters}}

{{Evd|left side|up to 3 additional parameters|s=separator}}

The default separator is "gives", use s== or similar to get "=" etc. Please note that for colon functions the first parameter belongs to the left side before the "|" vertical bar aka pipe.

Examples without additional parameters:

Examples:

1. {{Evd|CURRENTDAY|s=is}} displays

   {{ CURRENTDAY}} is 12

2. {{Evd|#expr:2*3}} displays

   {{ #expr:2*3}} gives 6

3. {{Evd|1=#expr:2+2=5}} displays

   {{ #expr:2+2=5}} gives 0

4. {{Evd|1=#expr:(2+2=4)|s==}} displays

   {{ #expr:(2+2=4)}} = 1

5. {{Evd|urlencode:!|s==}} displays

   {{ urlencode:!}} = %21

6. {{Evd|uc:abc} gives

   {{ uc:abc}} gives ABC

7. {{subst:Evd|uc:Upper Case|subst=subst:}} substitutes

   {{ subst:uc:Upper Case}} gives UPPER CASE

   See Help:Substitution for several caveats wrt subst=subst:.

As always the expression (first parameter) cannot directly contain "|", "=", plus other special cases related to square brackets / curly braces. In the case of this template "not directly" means "never" except from "=" as shown above.

This template and Template:Evdn (edit talk links history) can be used if the case of an expression in double braces which itself includes a pair of double braces (simple nested expressions). For the former, use named parameters 1n (Nested part of first parameter) and optionally 1a (part After that). For the latter, use "|" for the inner "{{" and, if there is code after it, also for "}}".

1. {{evd|#expr:24*|1n=CURRENTDAY}} gives {{ #expr:24*{{CURRENTDAY}}}} gives 288
2. {{evdn|#expr:24*|CURRENTDAY}} gives {{ #expr:24*{{ CURRENTDAY}}}} gives 288
3. {{evd|#expr:24*|1n=CURRENTDAY|1a=-24}} gives {{ #expr:24*{{CURRENTDAY}}-24}} gives 264
4. {{evdn|#expr:24*|CURRENTDAY|-24}} gives {{ #expr:24*{{ CURRENTDAY}}-24}} gives 264
5. {{evdn|#expr:4*|#expr:not 0| >3 | yields}} displays

   {{ #expr: 4*{{ #expr:not 0}} >3 }} yields 1

6. {{evdn|urlencode:|DIRMARK}} displays

   {{ urlencode:{{ DIRMARK}}}} gives %E2%80%8E

Examples with additional parameters (no nesting possible):

Example:

{{Evd|#ifeq: 1.00|+1|okay}} gives:

{{ #ifeq: 1.00|+1|okay}} gives okay

Example:

{{Evd|#ifeq: this|that||false|is}} gives:

{{ #ifeq: this|that||false}} gives false

Example:

{{Evd|#expr: 3*4}} gives:

{{ #expr: 3*4}} gives 12

Example:

{{evaldemo|#expr: 3*4}} gives:

{{ #expr: 3*4}} gives 12

{{ tc}} gives in

{{ t|b}} gives start-b-end

{{ t|b|c}} yields start-b-end

{{ t2|b|c}} gives bc

{{ t2|b|c|d}} gives bc

{{ t2|b|c|d}} yields bc

Optional substitution with subst=subst: is not supported. It's anyway against the spirit of this demo template showing what another template actually does, and not what it did some time ago.