Module:Yesno: Difference between revisions

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en>Mr. Stradivarius
(use frame.args for testing)
en>Mr. Stradivarius
(fix variable name)
Line 16: Line 16:
     end
     end


     val = args[1]
     val = frame.args[1]


     -- First deal with the case if val is nil, then deal with other cases.
     -- First deal with the case if val is nil, then deal with other cases.

Revision as of 10:12, 28 March 2013

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This is a meta module.

This module is meant to be used only by other modules. It should not be invoked in wikitext.

This module was adapted from Module:Yesno on Wikipedia.
Adaptation is noted for reference and attribution only. This module may differ from the original in function or in usage. The documentation on Wikipedia may be helpful in understanding this module.
Lua error in Module:Category_handler at line 76: attempt to call upvalue 'yesno' (a table value).


local p = {}

function p.yesno(frame)

    -- defaults
    local retvals = {
        yes   = "yes",
        no    = "",
        ["¬"] = ""
    }

    -- Allow arguments to override defaults. Arguments are taken from
    -- the parent frame; other arguments are ignored.
    for k,v in pairs(frame.args) do
        retvals[k] = v
    end

    val = frame.args[1]

    -- First deal with the case if val is nil, then deal with other cases.
    if val == nil then
        return retvals['¬']
    end

    val = val:lower()          -- Make lowercase.
    val = val:match'^%s*(.*%S)' or ''  -- Trim whitespace.

    -- Cases are ordered by (probable) likelihood of use. 
    if val == '' then
        return retvals['blank'] or retvals['no']
    elseif val == 'yes' then
        return retvals['yes']
    elseif val == 'no' then
        return retvals['no']
    elseif val == 'y' then
        return retvals['yes']
    elseif val == 'n' then
        return retvals['no']
    elseif val == '¬' then
        return retvals['¬']
    elseif tonumber(val) == 1 then
        return retvals['yes']
    elseif tonumber(val) == 0 then
        return retvals['no']
    else
        return retvals['def'] or retvals['yes']
    end
end

return p