Module:Coxeter–Dynkin diagram

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This module implements Template:Coxeter–Dynkin diagram. It is invoked as

• {{#invoke:Coxeter–Dynkin diagram|CDD}}

though the parameter is ignored; instead it uses the parameters passed to the template. See the template documentation for how that is used.

For using this from other Lua modules, first load the module.

local CDD = require('Module:Coxeter–Dynkin diagram')._CDD

You can then use it with the following syntax.

CDD{"node", "3", "node"}

See the template documentation for possible inputs.

The above documentation is transcluded from Module:Coxeter–Dynkin diagram/doc. (edit | history)
Editors can experiment in this module's sandbox (edit | diff) and testcases (edit | run) pages.
Subpages of this module.

-- module to turn a parameter list into a list of [[Coxeter–Dynkin diagram ‎]] images.
-- See the template documentation or any example for how it is used and works.
local p = {}
function p.CDD(frame)
    local args = {}
    local pframe = frame:getParent()
    local body ='<span style="display:inline-block;">'             -- create and start the output string
    for v, x in pairs(pframe.args) do                              -- process params, ignoring any names
    	if x ~= '' then                                            -- skip if empty
		    body = body .. "[[File:CDel_" .. x .. ".png|link=]]"   -- write file for this parameter
		end
    end

    body = body .. "</span>"                                       -- finish output string
    return body                                                    -- return result

end

return p