Wikipedia:Lua/Modul/FormatNum/en

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FormatNum – Module containing methods for rounding and formatting of numbers. Various variants are offered.

Functions for templates

failsafe

Version ID: 2020-08-06

• optional parameter 1 – required version, or keyword wikidata

Returns:

• (empty), if minimal version condition not matched
• local version otherwise, or registered on Wikidata (2020-08-06) when wikidata

Examples and test page

There are tests available to illustrate this in practice.

Use in another Lua module

All of the above functions can be called from other Lua modules, if not Lua library function anyway. Use require(); the below code checks for errors loading it:

local lucky, FormatNum = pcall( require, "Module:FormatNum" )
if type( FormatNum ) == "table" then
    FormatNum = FormatNum.FormatNum()
else
    -- In the event of errors, FormatNum is an error message.
    return "<span class=\"error\">" .. FormatNum .. "</span>"
end

FormatNum.format(source, spec, meet)

• source: string
• spec: optional string
• meet: optional number (extension for internal padding)

FormatNum.minus(source, larger)

• source: string
• larger: optional boolean (conversion into Unicode)

FormatNum.padding(source, meet, stop)

• source: string
• meet: number
• stop: string

FormatNum.roman2number(source, suffix)

• source: string
• suffix: optional string

FormatNum.round(source, precision, method)

• source: string
• precision: number
• method: optional number

FormatNum.format(assert)

• assert: optional string

FormatNum()

Yields table with access to functions (see above).

Usage

This is a general library; use it anywhere. Dedicated to be wrapped into relevant templates.

Dependencies

None.