Module:Outdent

Documentation for this module may be created at Module:Outdent/doc

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 k,v in pairs(indentTable) do                                            -- set start and end if reversed
		if args[v] then
			Start = '└'
			End = '┐'
		end
	end
	
	if not args[1] then args[1] = '' end                                        -- un-nil args[1]
	
	for _ in string.gmatch(args[1],':')  do
		count = count+1                                                         -- increase count for every :
	end
	
	for _ in string.gmatch(args[1],'*') do
		count = count+1                                                         -- increase count for every *
	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
	
	if count > 40 then
		count = 40                                                              -- 40 max
	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
	
	if count == - 0.7 then                                                      -- set to pipe | if count was 0                                 
		line = '|'
		Start = ''
		End = ''
	end
	
	outside                                                                     -- create span tag
		:addClass('outdent-template')
		:css('display','block')
		:css('margin-top','-0.5em')
		:css('color','#AAA;')                                                  
		:wikitext('<span style="display:inline-block; overflow:hidden;">'..Start..'</span>') -- start
		:wikitext('<span style="display:inline-block; overflow:hidden; word-wrap:normal; width:'..count..'em;">'..line..'</span>') -- middle
		:wikitext('<span style="display:inline-block; overflow:hidden;">'..End..'</span>') -- end
	if line ~= '|' then                                                         -- if not pipe (|)
		outside
			:css('position','relative')                                             
			:css('left','-0.25em')  
	else
		outside
			:css('margin-top','0.25em')
	end
	
	if args['test_line_width'] then                                             -- used to test line width before and after width reduction
		return 'Before:'..'<br />'..line..'<br />'..'After:'..'<br />'..'<span style="display:inline-block;overflow:hidden;word-wrap:normal;width:'..count..'em;">'..line..'</span>'..'<br />'..'Final:'..'<br />'..tostring(outside)
	end
	
	if args[2] then
		local note = mw.html.create('span')
		note:wikitext('([[Wikipedia:Indentation#Outdenting|outdent]])&#32;')    -- add (outdent) if needed
		return tostring(outside)..tostring(note)
	else
		return outside
	end
	
end

return p