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    Farthest Frontier

    This module creates an html message with class "error". It is a replacement for {{error}} - please see the documentation page there for usage instructions.

    See also[edit source]


    -- This module implements {{error}}.
    
    local p = {}
    
    local function _error(args)
        local tag = mw.ustring.lower(tostring(args.tag))
    
        -- Work out what html tag we should use.
        if not (tag == 'p' or tag == 'span' or tag == 'div') then
            tag = 'strong'
        end
    
        -- Generate the html.
        return tostring(mw.html.create(tag)
            :addClass('error')
            :wikitext(tostring(args.message or args[1] or error('no message specified', 2)))
        )
    end
    
    function p.error(frame)
        local args
        if type(frame.args) == 'table' then
            -- We're being called via #invoke. The args are passed through to the module
            -- from the template page, so use the args that were passed into the template.
            args = frame.args
        else
            -- We're being called from another module or from the debug console, so assume
            -- the args are passed in directly.
            args = frame
        end
        -- if the message parameter is present but blank, change it to nil so that Lua will
        -- consider it false.
        if args.message == "" then
            args.message = nil
        end
        return _error(args)
    end
    
    return p
    
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