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    Farthest Frontier

    Usage[edit source]

    Simply place "#invoke:DemoTemplate|" before a call to a template. For example, {{#invoke:DemoTemplate|Convert|10|km|nmi|abbr=off}} yields the following:

    {{Convert|10|km|nmi|abbr=off}}
    1. REDIRECT w:Template:Convert

    This module handles both named and positional parameters as well as equals signs in both parameter names and values correctly, so this (for example) will work: {{#invoke:DemoTemplate|1x|1=Some parameter with an = sign in it}}

    {{1x|1=Some parameter with an = sign in it}}Template:1x

    Note, however, that pipes, curly braces, etc. are not currently handled correctly by this module, so this (for example) will not work correctly: {{#invoke:DemoTemplate|1x|foo{{!}}bar}}

    {{1x|foo|bar}}Template:1x

    require('Module:No globals')
    
    local newBuffer = require('Module:OutputBuffer')
    local mt = {}
    
    function mt.__index(t, title)
    	return function(frame)
    		local getBuffer, print, printf = newBuffer()
    		printf('{{%s', title)
    		local ipairsArgs = {}
    		for k,v in ipairs(frame.args) do
    			if string.find(v, '=', 1, true) then
    				break
    			end
    			ipairsArgs[k] = true
    			printf('|%s', v)
    		end
    		for k,v in pairs(frame.args) do
    			if not ipairsArgs[k] then
    				printf('|%s=%s', string.gsub(k, '=', '{{=}}'), v)
    			end
    		end
    		print('}}')
    		local buffer = getBuffer()
    		-- rather than calling expandTemplate with the title and args we have, call preprocess, so that our code example will always match our output, even in the cases of pipes or other things we should have escaped but didn't
    		return string.format('<code>%s</code> &rarr; %s', mw.text.nowiki(buffer), frame:preprocess(buffer))
    	end
    end
    
    return setmetatable({}, mt)
    
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