Module talk:DemoTemplate

Doesn't preserve outer spacing

See how it doesn't preserve outer spaces around " two inner spaces ". Is that the way we want it to behave? Or is it just the MediaWiki software?

{{#invoke:DemoTemplate|Val/find|pattern= two inner spaces }} → {{Val/find|pattern=two inner spaces}} → Template:Val/find Thanks. — CpiralCpiral 08:43, 24 June 2015 (UTC)

All templates do that. Whitespace at the start and end is stripped in all named and explicitly numbered parameters, but not in unnamed ones:

• "{{echo| abc }}" → "@Abc:"
• "{{echo|1= abc }}" → "@Abc:"
• "{{#invoke:DemoTemplate|echo| abc }}" → "{{echo| abc }} → @Abc:"
• "{{#invoke:DemoTemplate|echo|1= abc }}" → "{{echo|abc}} → @Abc:"

Since whitespace is stripped before a parameter is passed into a module/template, nothing can be done within this module, but whitespace can be kept by adding <nowiki/> when using it:

• "{{echo|1=<nowiki/> abc <nowiki/>}}" → ""
• "{{#invoke:DemoTemplate|echo|1=<nowiki/> abc <nowiki/>}}" → "{{echo|'"`UNIQ--nowiki-0000000A-QINU`"' abc '"`UNIQ--nowiki-0000000B-QINU`"'}} → "

SiBr₄ (talk) 15:28, 24 June 2015 (UTC)