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

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m (Unprotected Template:Convert/numdisp/sandbox: it's a sandbox)
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--    #titleparts to split the number at "/" (if any) and
 
--    #titleparts to split the number at "/" (if any) and
 
--    then checks part 2 (the denominator, after the slash)
 
--    then checks part 2 (the denominator, after the slash)
--    to trigger use of {{Convert/numdisp/frac}}. Hence,
+
--    to trigger use of {{Convert/numdisp/fracparts}}. Hence,
 
--        #if: {{#titleparts:{{{1|6+3/8}}}|1|2}}
 
--        #if: {{#titleparts:{{{1|6+3/8}}}|1|2}}
 
--    will be true if a denominator exists (such as "8").
 
--    will be true if a denominator exists (such as "8").
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--NOTE N3: This template uses minimal expansion depth of the
 
--NOTE N3: This template uses minimal expansion depth of the
 
--    if-else logic by checking for "/" before invoking the
 
--    if-else logic by checking for "/" before invoking the
--    nested subtemplate {{Convert/numdisp/frac}}. The
+
--    nested subtemplate {{Convert/numdisp/fracparts}}. The
 
--    check for a negative number increases the nesting depth
 
--    check for a negative number increases the nesting depth
 
--    by 1 level to apply abs({1}) in a nested {#expr:} parser
 
--    by 1 level to apply abs({1}) in a nested {#expr:} parser
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  ** Add interwiki links to /doc subpage to avoid changes here **
 
  ** Add interwiki links to /doc subpage to avoid changes here **
 
--
 
--
-->{{Template sandbox notice}}
+
-->{{documentation}}
 
</noinclude>
 
</noinclude>

Revision as of 14:43, 29 December 2012

−14,000.

Template documentation[view] [edit] [history] [purge]

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