Module:Shared/Yesno: Difference between revisions

From Melvor Idle
(Created page with "--[[ {{Helper module|name=Yesno |fname1=(arg) |ftype1=Any value |fuse1=Reads arg for yes/no and returns the appropriate boolean or nil |fname2=(arg1,arg2) |ftype2=Any value, Any value |fuse2=Reads arg1 for yes/no and returns the appropriate boolean; returns arg2 if arg1 was not an applicable value }} --]] -- <pre> -- Used to evaluate args to booleans where applicable -- -- Based on <https://en.wikipedia.org/wiki/Module:Yesno> -- see page history there for contributors --...")
 
m (Return default instead of nil, when param is nil)
 
Line 17: Line 17:
--
--


return function( arg, default )
return function(arg, default)
     arg = type( arg ) == 'string' and mw.ustring.lower( arg ) or arg
     arg = type( arg ) == 'string' and mw.ustring.lower( arg ) or arg


     if arg == nil then
     if arg == nil then
         return nil
         return default
     end
     end



Latest revision as of 21:10, 23 April 2024

Documentation for this module may be created at Module:Shared/Yesno/doc

--[[
{{Helper module|name=Yesno
|fname1=(arg)
|ftype1=Any value
|fuse1=Reads arg for yes/no and returns the appropriate boolean or nil
|fname2=(arg1,arg2)
|ftype2=Any value, Any value
|fuse2=Reads arg1 for yes/no and returns the appropriate boolean; returns arg2 if arg1 was not an applicable value
}}
--]]
-- <pre>
-- Used to evaluate args to booleans where applicable
--
-- Based on <https://en.wikipedia.org/wiki/Module:Yesno>
-- see page history there for contributors
-- Copied from <https://runescape.wiki/w/Module:Yesno>
--

return function(arg, default)
    arg = type( arg ) == 'string' and mw.ustring.lower( arg ) or arg

    if arg == nil then
        return default
    end

    if
        arg == true or
        arg == 'yes' or
        arg == 'y' or
        arg == 'true' or
        tonumber( arg ) ==  1
    then
        return true
    end

    if
        arg == false or
        arg == 'no' or
        arg == 'n' or
        arg == 'false' or
        arg == '' or
        tonumber( arg ) == 0
    then
        return false
    end

    return default
end