Template:Convert/numdisp

<noinclude><!--
--============================================================
-- Display a number, with optional fraction part: 6+3/8
--============================================================
--                                (see NOTES at bottom)
--
--></noinclude>{{#if:{{#titleparts:{{{1|-1200-3~118}}}|1|2}}
|{{Convert/numdisp/fracparts
  |{{{1|-1200-3/118}}}|{{#titleparts:{{{1|-1200-3/118}}}|1|1}}|{{#titleparts:{{{1|-1200-3/118}}}|1|2}}}}<!--split at "/"
--else-->|{{#ifexpr:{{{1|-14000.00}}} < 0
  |<!--then re-build negative number (see NOTE Z4 below)
-->{{formatnum:
  {{padright:−<!--&minus-->{{#expr:-{{{1|-14000.00}}} }}<!--endexpr
    --put decimal if needed-->{{
     #ifexpr:{{{1|-14000.00}}}0={{{1|-14000.00}}}
     and {{{1|-14000.00}}}=floor( {{{1|-14000.00}}} )|.}}<!--
  -->|{{strlen_short|{{{1|-14000.00}}}|}}<!--endstrlen_short
    -->|0}}<!--endpadright end-zeroes "0" to original length
  -->}}<!--endformatnum
  else-->|{{formatnum: {{{1|6000.500}}} }}}}<!--endif {1}<0
-->}}<noinclude><!--endif {#titleparts..}
--------------------------------------------------------------
--NOTES:
--     [ These comments are skipped by <noinclude> and not sent
--       in formatted Internet pages, only during edit. ]
--
--NOTE A1: This template processes a number, for display, by
--     checking to display a fraction part ("/"), else it
--     will check for negative to display a unicode &minus
--     and {{formatnum:{{#expr:abs( {{{1|-6000}}} )}}}} such
--     as "-6000" with a full minus sign rather than hyphen.
--     In 99% of Wikipedia usage, there are no fractions.
--
--NOTE D2: The check, for fraction parts, uses parser-function
--     #titleparts to split the number at "/" (if any) and
--     then checks part 2 (the denominator, after the slash)
--     to trigger use of {{Convert/numdisp/fracparts}}. Hence,
--         #if: {{#titleparts:{{{1|6+3/8}}}|1|2}}
--     will be true if a denominator exists (such as "8").
--
--NOTE N3: This template uses minimal expansion depth of the
--     if-else logic by checking for "/" before invoking the
--     nested subtemplate {{Convert/numdisp/fracparts}}. The
--     check for a negative number increases the nesting depth
--     by 1 level to apply abs({1}) in a nested {#expr:} parser
--     function, to use the absolute value of the amount {1}.
--
--NOTE Z4: Any end-zeroes on a decimal are preserved by not
--     using positive amounts in an expression, and for rare
--     negative amounts, the &minus with inverse -{1} is padded
--     by {padright:} with end-zeroes "0" to {strlen_short} but
--     uses #ifexpr:{1}0={1} and floor({1})={1} to put ".".
--     So, {strlen_short} keeps minimal expansion depth of +2.
--
-- WARNING: *** DO NOT DELETE COMMENTS FROM THIS TEMPLATE ***
--      Unless these comments are readily available, people
--      might tinker with the coding (or rename templates),
--      in hopes to clarify operation because these comments
--      were not nearby to explain the issues. Having these
--      comments only on a doc-page increases the danger of
--      explanations no longer matching the current coding.
--      UPDATE these comments to match changes to the template.
--      UPDATE the HISTORY during major changes (not typos).
--
--------------------------------------------------------------
--HISTORY:
--03Apr09 Created by [[User:Jimp]] on English Wikipedia.
--19Nov10 Invokes subtemplate only if has denominator (at "/").
--19Nov10 Put NOTES comments to explain template coding.
--19Nov10 Put HISTORY comments to log major changes.
--19Nov10 Put all parameters on 1 line to avoid newline "2^ /3"
--20Nov10 Linked {Documentation} to hold any interwiki links.
--12Feb11 Shows Unicode &minus ("−") for negative numbers.
--17Feb11 Used {padright:} to re-add end-zeroes on negatives.
--17Feb11 Used #ifexpr:{1}0={1} and floor({1})={1}, to put "."
--
 ** Add interwiki links to /doc subpage to avoid changes here **
--
-->{{Documentation}}
</noinclude>