Difference between revisions of "Template:Hands/numdisp/doc"

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(update into hands regferencing)
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The '''[[Template:Hands/numdisp]]''' processes a number, for display, by checking to display a fraction part (at "/"), else it just uses [[Help:Parser functions|parser-function]] <nowiki>{{formatnum:{{{1|6000}}}}}</nowiki> to add commas, such as to show "6,000". In 99% of recent Wikipedia usage, there are relatively few articles using fractions (less than 1% of articles using Convert show fractions).
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The '''[[Template:Hands/numdisp]]''' processes a number, for display, by checking to display a fraction part (at "/"), else it just uses [[Help:Parser functions|parser-function]] <nowiki>{{formatnum:{{{1|6000}}}}}</nowiki> to add commas, such as to show "6,000".
 
: '''Usage:'''&nbsp; <nowiki>{{hands/numdisp|6+3/8}}</nowiki> &rarr; {{hands/numdisp|6+3/8}}
 
: '''Usage:'''&nbsp; <nowiki>{{hands/numdisp|6+3/8}}</nowiki> &rarr; {{hands/numdisp|6+3/8}}
 
:::<nowiki>{{hands/numdisp|-4-1/2}}</nowiki> &rarr; {{hands/numdisp|-4-1/2}}
 
:::<nowiki>{{hands/numdisp|-4-1/2}}</nowiki> &rarr; {{hands/numdisp|-4-1/2}}

Revision as of 02:13, 16 October 2014

The Template:Hands/numdisp processes a number, for display, by checking to display a fraction part (at "/"), else it just uses parser-function {{formatnum:{{{1|6000}}}}} to add commas, such as to show "6,000".

Usage:  {{hands/numdisp|6+3/8}} → 6 38
{{hands/numdisp|-4-1/2}} → −412
{{hands/numdisp|23500}} → 23,500
{{hands/numdisp|2300+643/1250}} → 2,300 6431250
{{hands/numdisp|&minus;7.0}} → −7.
{{hands/numdisp|14+6/ }} → Expression error: Unexpected < operator

Implementation

The check, for fraction parts, uses parser-function {{#titleparts:xx/xx|1|2}} to split a number at "/" (if any, as in: 6+3/8) and then checks if part 2 (the denominator, after the slash) contains a number, to trigger use of {{hands/numdisp/frac}}). Hence, the template uses:

#if: {{#titleparts:{{{1|6+3/8}}}|1|2}}

That if-expression will be true if a denominator exists (such as "8" in 6+3/8).

See also