View source for Template:Val/delimitnum

<includeonly><!--
-->{{#ifeq: <!-- compare "04" to 4, and if so, output 4-digits pure
  What might be "04" is composed of three outputs: dot, len, and fmt -->
  {{#invoke:String|find|{{{1}}}|.}}<!-- Output the zero if no dot.
  -->{{#invoke:String|len <!-- Length of 4 with sign and spaces filtered? -->
    |{{#invoke:String|replace|{{{1}}}|[-+ ]|plain=false}}}}<!-- 
    That replace just filtered out any and all spaces, + or - characters.
    But it's gotta have the minus sign first in the [-charclass].
    Any fmt given?  If so comparison to "4" will fail -->{{{fmt|}}}
| 4 |{{#invoke:String|replace|{{{1}}}|-|&minus;}}<!-- 
If fmt is nil, found . is 0, and filtered len is 4, then 04=4, 
and we have just output the number, replacing any - with a minus sign

Else: 
-->|{{#switch: <!-- its not a pure 4-digit number with no fmt options given-->
{{#invoke:String|sub|{{{1|0}}}|1|1}}
  <!-- If the first char is ... -->

  |- <!-- ... one kind of dash, or another -->
  |− = {{#ifeq:{{{nosign|off}}}|off|−}}<!-- output a &minus; sign unless nosign
     -->{{#ifeq:
          {{#invoke:String|sub|{{{1|0}}}|2|2}}|.|0}}<!--And then 
          then if next char is . then output a zero, else do || nothing.
     -->{{#switch: {{{fmt}}} <!-- Format the rest of the number. -->
       |commas={{formatnum:{{#invoke:String|sub|{{{1|0}}}|2}}}}
       |#default = {{#invoke:Gapnum|main|{{#invoke:String|sub|{{{1|0}}}|2}}}}
   }} 

  <!-- follow same logic for leading + char -->
  |+={{#ifeq:{{{nosign|off}}}|off|+}}<!--
    -->{{#ifeq:{{#invoke:String|sub|{{{1|0}}}|2|2}}|.|0}}<!--
      -->{{#switch:{{{fmt}}}
        |commas = {{formatnum:{{#invoke:String|sub|{{{1|0}}}|2}}}}
        |#default = {{#invoke:Gapnum|main|{{#invoke:String|sub|{{{1|0}}}|2}}}}
     }} <!-- follow similar logic for leading . char -->
  |.=0<!--
    -->{{#switch:{{{fmt}}}
      |commas={{{1|0}}}
      |#default = {{#invoke:Gapnum|main|{{{1|0}}}}}
    }}

  <!-- Else if first char is not . or - or + -->
  |#default = {{#switch:{{{fmt}}} 
     |commas={{formatnum:{{{1|0}}}}}
     |#default = {{#invoke:Gapnum|main|{{{1|0}}}}}
      }}
   }}
}}</includeonly><noinclude>{{documentation}}</noinclude>