Module:Outdent/sandbox

This is the module sandbox page for Module:Outdent (diff).
local p = {}
local getArgs = require('Module:Arguments').getArgs

function p.outdent (frame) 
	local args = getArgs (frame)
	local count = 0
	local Start = '┌'
	local End = '┘'
	local i = 0
	local line = ''
	local outside = mw.html.create('span')
	local indentTable = {'reverse','indent','in','r'}                           -- lsit of parameters that mean reverse/indent
	
	for _,v in pairs(indentTable) do                                            -- set start and end if reversed
		if args[v] then
			Start = '└'
			End = '┐'
		end
	end
	
	args[1] = args[1] or ''                                                     -- un-nil args[1]
	
	for _ in string.gmatch(args[1],'[:*]')  do
		count = count+1                                                         -- increase count by 1 for every : or *
	end
	
	for _ in string.gmatch(args[1],'#') do
		count = count+2                                                         -- increase count by 2 for every #
	end
	
	if count == 0 then                                                          -- set count to args[1] if needed
		count = tonumber(args[1])
	end
	
	if not count then
		count = 10                                                              -- 10 default
	end
	
	count = count * 1.6 - 0.7                                                   -- convert to width
	
	local lineMath = math.ceil(count * 1.6)
	
	while i < lineMath do                                                       -- create line
		line = line..'─'
		i = i+1
	end
	
	local style = '<span style="display:inline-block; overflow:hidden;'
	
	outside                                                                     -- add outside style and class
		:addClass('outdent-template')
		:css('display','block')
		:css('margin-top','-0.5em')
		:css('color','#AAA')
		:css('word-wrap','normal')                               

	if count == -0.7 then                                                       -- if was 0
		outside                                                                 
			:css('margin-top','0.25em')
			:wikitext('|')                                                      
	else                                                                        -- if count wasn't 0
		outside
			:css('position','relative')                                             
			:css('left','-0.25em')
			:css('margin-top','-0.25em')
			:wikitext(style..'">'..Start..'</span>')                            -- start
			:wikitext(style..'width:'..count..'em;">'..line..'</span>')         -- middle
			:wikitext(style..'">'..End..'</span>')                              -- end
	end
	
	if args['test_line_width'] then                                             -- used to test line width before and after width reduction
		local test_line = {
			'Before:'..'<br />'..line..'<br />',
			'After:'..'<br />',
			style..'width:'..count..'em;">',
			line..'</span>'..'<br />',
			'Final:'..'<br />'..tostring(outside),
		}
		return table.concat (test_line)
	elseif args[2] then                                                         -- add (outdent) if needed
		local outdent_notice = {
			tostring(outside),
			'([[Wikipedia:Indentation#Outdenting|outdent]])&#32;',
		}
		return table.concat (outdent_notice)
	else                														-- return normal line
		return outside      
	end
	
end

return p
See also
