Editing Module:Yesno

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-- Function allowing for consistent treatment of boolean-like wikitext input.
local p = {}
-- It works similarly to the template {{yesno}}.


return function (val, default)
function p.yesno(frame)
-- If your wiki uses non-ascii characters for any of "yes", "no", etc., you
 
-- should replace "val:lower()" with "mw.ustring.lower(val)" in the
    -- defaults
-- following line.
    local retvals = {
val = type(val) == 'string' and val:lower() or val
        yes  = "yes",
if val == nil then
        no    = "",
return nil
        ["¬"] = ""
elseif val == true
    }
or val == 'yes'
 
or val == 'y'
    -- Allow arguments to override defaults.
or val == 'true'
    -- 'any' tracks the presence of any arguments at all.
or val == 't'
    local args = frame.args
or val == 'on'
    local any = false
or tonumber(val) == 1
    for k,v in pairs(args) do
then
        any = true
return true
        retvals[k] = v
elseif val == false
    end
or val == 'no'
    -- If there are no arguments, try and get them from the parent frame.
or val == 'n'
    if any == false then
or val == 'false'
        local pframe = frame:getParent()
or val == 'f'
        args = pframe.args
or val == 'off'
        for k,v in pairs(args) do
or tonumber(val) == 0
            retvals[k] = v
then
        end
return false
    end   
else
 
return default
    val = args[1]
end
 
    -- 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.
 
    if val == '' then
        return retvals['blank'] or retvals['no']
    elseif val == 'n' or val == 'no' or tonumber(val) == 0 then
        return retvals['no']
    elseif val == 'y' or val == 'yes' or tonumber(val) == 1 then
        return retvals['yes']
    elseif val == '¬' then
        return retvals['¬']
    else
        return retvals['def'] or retvals['yes']
    end
end
end
return p
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