Módulu:Clade

--NOTE: this module contains functions for generating the table structure of the clade tree in two ways:
-- (1) the original method was generated by a number of function calls from the template using {{invoke}}
--        function p.openTable(frame) - creates wikitext code to open the HTML table
--        function p.node(frame)  - deals with the first node (|1,|label1) and creates wikitext for top row of the table
--        function p.nodeN(frame) - deals with a sister nodes (|2-17), adding a row each time it is called
--        function p.closeTable() - closes the HTML table
-- (2) the revised method is called by the template with one {{invoke}} instruction; it has three functions:
--        p.main(frame) - opens and closes table, loops through the children of node, main is invoked once and controls the rest, calling ...
--        p.addTaxon(childNumber, nodeLeaf) - the nuts and bolts; code dealing with each child node
--        p.addLabel(childNumber) - adds the label text

local p = {}



--============================== main function (for Method 2) ===========================
-- main function, which will 
--[[Main function to generate the table structure of the tree

Usage: {{#invoke:Module:Sandbox/Jts1882/CladeN|main|style={{{STYLE}}} }}
Template: Usuariu:Oriciu/sandbox/templates/CladeN
]]


function p.main(frame)

	local cladeString = ""	
	local maxChildren = 20 -- currently 17 in the clade/cladex templates
	local childNumber = 0
	local lastNode = 0
	local nodeCount = 0 -- total leafs plus new clade branches
	local leafCount = 0 -- just the terminal leaves
	local cladeCount = 0 -- new clade calls (each with a table)
	local childCount = 0 -- number of leaves in the clade (can use to set bottom of bracket in addTaxon()
	local totalCount = 0
	
	--[[Note: this preprocessing loop gets information about the whole structure (number of nodes, leaves etc)
		it makes a redundant calls to the templates through transclusion, but doen't affect the template depths; 
		it would probably be better to store the transcluded nodes in a table (a job for later)
	]]
--[[ disable proprocessing loop
	while 	childNumber < maxChildren do -- preprocessing loop
		childNumber = childNumber + 1 -- so we start with 1
		local nodeLeaf,data = mw.getCurrentFrame():getParent().args[tostring(childNumber)] or ""  -- get data from |N=
  
		if nodeLeaf ~= "" then
			childCount = childCount + 1  -- this counts child elements in this clade
		    
		    for i in string.gmatch(nodeLeaf, "|| rowspan") do -- count number of rows started (transclusion)
   				nodeCount = nodeCount + 1
     		end
		    for i in string.gmatch(nodeLeaf, "{| cellspacing") do -- count number of tables started (transclusion)
   				cladeCount = cladeCount + 1
     		end
           -- _, cladeCount = string.gsub(nodeLeaf, "{| cellspacing", "")
            --_, nodeCount = string.gsub(nodeLeaf, "|| rowspan", "")
            
            --totalCount = totalCount + nodeCount
			lastNode = childNumber
		--	if data ~= nil then totalCount = totalCount + tonumber(data) else totalCount = totalCount + 1 end
		end


		--cladeString = cladeString .. '\n' .. ' count= ' .. totalCount

	end
]]	
    nodeCount = nodeCount + childCount --(elements passed down by transduction plus current child elements)
    cladeCount = cladeCount + 1        --(elements passed down by transduction plus current clade)
    leafCount = nodeCount-cladeCount+1
    totalCount =leafCount-- cladeCount --nodeCount 



    local testing = false
    --testing = true                  -- COMMENT OUT TO GET MODULE RUNNING WITHOUT THE TEST
    if testing then 
    	local dataString = p.test(1)
    	cladeString = cladeString .. dataString
    	return cladeString 
    end

	local tableStyle = frame.args.style or ""
	if tableStyle == '{{{style}}}' then tableStyle = "" end

	local captionName =mw.getCurrentFrame():getParent().args['caption'] or ""
	local captionStyle = mw.getCurrentFrame():getParent().args['captionstyle'] or ""

	-- open table	
	--cladeString = cladeString .. '{| style="border-collapse:collapse;border-spacing:0;margin:0;' .. tableStyle .. '"'
    cladeString = cladeString .. '{| style="border-spacing:0;margin:0;' .. tableStyle .. '"'

    -- add caption
	if captionName ~= "" then
		cladeString = cladeString .. '\n|+ style="' .. captionStyle .. '"|' .. captionName
	end
	
	-- global nodeParameters (unnumber, i.e. color, thickness, state) apply to whole node bracket, 
	--    but can be overrriden by branchParameters (numbered, e.g. color2, thickness2, state2)
	nodeColor = mw.getCurrentFrame():getParent().args['color'] or ""
	nodeThickness = tonumber(mw.getCurrentFrame():getParent().args['thickness']) or 1
	nodeState = mw.getCurrentFrame():getParent().args['state'] or "solid"
	
	local moreNeeded = true
	childNumber = 0
	lastNode = 0

	--[[get child elements (add more rows for each child of node; each child is two rows)
	    the function addTaxon is called to add the rows for each child element;
	    each child add two rows: the first cell of each row contains the label or sublabel (below the line label), respectively;
	    the second cell spans both rows and contains the leaf name or a new clade structure
	    a third cell on the top row is sometimes added to contain a group  to the right
	]]
	
	while 	childNumber < maxChildren do -- disable moreNeeded 
	                                        -- while childNumber < 17 and moreNeeded == true do
		childNumber = childNumber + 1 -- so we start with 1
		local nodeLeaf = mw.getCurrentFrame():getParent().args[tostring(childNumber)] or ""  -- get data from |N=
		local nodeLabel = mw.getCurrentFrame():getParent().args['label'..tostring(childNumber)] or ""  -- get data from |labelN=
		
		
		local newickString = mw.getCurrentFrame():getParent().args['newick'..tostring(childNumber)] or ""  -- get data from |labelN=
		if newickString ~= "" then -- if using a newick string instead of a clade structure
			if nodeLabel == "" then -- use labelN by default, otherwise use root name from Newick string
				nodeLabel = p.getNewickOuterterm(newickString) -- need to use terminal part of newick string for label
			end
			cladeString = cladeString .. '\n' .. p.addTaxon(childNumber, p.newick(0, newickString), nodeLabel)
			lastNode = childNumber
		elseif nodeLeaf ~= "" then -- if the node contains a leaf name or clade structue
			cladeString = cladeString .. '\n' .. p.addTaxon(childNumber, nodeLeaf, nodeLabel)
			lastNode = childNumber
		else
			moreNeeded = false -- no |N= so don't look for more
			-- Note: this changes the behaviour. If there is no |2, it won't look for |3 or |4, which clade does (is this desirable?)
			-- this has been disabled to allow consistent behaviour with clade/cladex (it will check to the limit set)
		end
	end

	--[[finish last row by adding cell with no left border 
        note: the row was started in addTaxon(), but the cell not added as left border yet to be determined; 
             here the cell is added to the last child node with no left border as it is below the bracket
             this will be moved to addTaxon() when the number of the last child is known 
   	]]
   local subLabel = mw.getCurrentFrame():getParent().args['sublabel'..tostring(lastNode)] or ""  -- request in addLabel
	
	--use subLabel for annotating the clade structues to use structure information (DEBUGGIING ONLY)
	--subLabel= '(N=' .. totalCount .. ')'
	
	--cladeString = cladeString ..  '\n' .. '| style="border: 0; padding: 0; vertical-align: top;" | <br/> '
	cladeString = cladeString ..  '\n' .. '|style="border:0;vertical-align:top;text-align:center;"|' .. p.addLabel(lastNode-1,subLabel) 

    --[[ footer description (add addition row spanning two columns at bottom of table)
    	this is designed to provide the description below the whole clade structure (mimicking cladogram);
    	however, it can also be used to add labels and spacing to the whole clade structre
	]]
	local footerText  = mw.getCurrentFrame():getParent().args['footer'] or ""
	local footerStyle = mw.getCurrentFrame():getParent().args['footerstyle'] or ""

	if footerText ~= "" then
	   --cladeString = cladeString ..  '<tr><td>Test <br/><br/><br/><br/><br/></td></tr>' 
	   cladeString = cladeString ..  '\n|-style="' .. footerStyle .. '"\n|colspan="2"|<p>' .. footerText .. '</p>||'
	end

	-- close table (wikitext to close table)
	cladeString = cladeString ..  '\n|}'
	
	return cladeString
end

--[[ function to add child elements
     adds wikitext for two rows of the table for each child node, 
     	the first cell in each is used for the label and sublabel; the bottom border forms the horizonal branch of the bracket
     	the second cell is used for the leafname or a transcluded clade structure and spans both rows
     note that the first and last child nodes need to be handled differently from the middle elements
	     the middle elements (|2, |3 ...) use a left border to create the vertical line of the bracket
	     the first child element doesn't use a left border for the first cell in the top row (as it is above the bracket)
	     the last child doesn't use a left border for the first cell in the second row (as it is above the bracket)
	     a complication is that the number of the last child node is not known;
	     	as a result the cells will be added to the row on the next iteration or after the main loop finishes
]]
function p.addTaxon(childNumber, nodeLeaf, nodeLabel)

	-- get leaf and labels
	--local nodeLeaf  = mw.getCurrentFrame():getParent().args[tostring(childNumber)] or ""    -- used passed variable to avoid redundancy
	--local nodeLabel = mw.getCurrentFrame():getParent().args['label'..tostring(childNumber)] or ""  -- request in addLabel
	
	-- get formating parameters for branch (default to global nodeParameters)
	--    - the branch parameters have a number, e.g. |colorN, |thicknessN, |stateN
	--    - the node parameters have no number, e.g. |color, |thickness, |state
	local branchThickness = tonumber(mw.getCurrentFrame():getParent().args['thickness'..tostring(childNumber)]) or nodeThickness
	local branchColor = mw.getCurrentFrame():getParent().args['color'..tostring(childNumber)] or nodeColor
	local branchStyle = mw.getCurrentFrame():getParent().args['style'..tostring(childNumber)] or ""
	local branchState = mw.getCurrentFrame():getParent().args['state'..tostring(childNumber)] or nodeState -- "solid" 
	if branchState == 'double' then if branchThickness < 2 then branchThickness = 3 end end  -- need thick line for double

    -- the left border takes node parameters, the bottom border takes branch parameters
   local bottomBorder =  tostring(branchThickness) ..'px ' .. branchState  .. (branchColor~="" and ' ' .. branchColor or '')
   local leftBorder   =  tostring(nodeThickness)   ..'px ' .. nodeState  .. (nodeColor~="" and ' ' .. nodeColor or '')
	
	-- variables for right hand bar or bracket
	--local barColor  = "" 
	local barRight  = mw.getCurrentFrame():getParent().args['bar'..tostring(childNumber)] or "0"
	local barBottom = mw.getCurrentFrame():getParent().args['barend'..tostring(childNumber)] or "0"
	local barTop    = mw.getCurrentFrame():getParent().args['barbegin'..tostring(childNumber)] or "0"
	local barLabel  = mw.getCurrentFrame():getParent().args['barlabel'..tostring(childNumber)] or ""
	local groupLabel  = mw.getCurrentFrame():getParent().args['grouplabel'..tostring(childNumber)] or ""
	local groupLabelStyle  = mw.getCurrentFrame():getParent().args['labelstyle'..tostring(childNumber)] or ""

	--replace colours with format string; need right bar for all three options
	if barRight  ~= "0" then barRight  = "2px solid " .. barRight  end 
	if barTop    ~= "0" then barRight  = "2px solid " .. barTop    end
	if barBottom ~= "0" then barRight  = "2px solid " .. barBottom end 
	if barTop    ~= "0" then barTop    = "2px solid " .. barTop    end
	if barBottom ~= "0" then barBottom = "2px solid " .. barBottom end 
	
	-- now construct wikitext 
	local styleString = ''
	local cladeString = ''

	--[[ first add cell to the spacing row (for 2-17); it completes the previous row 
	    why is this here rather than at the end of each row? 
		To allow left border (here while extending bracket) or not (end of bracket)
	]]
	if childNumber  ~= 1 then
  		local subLabel = mw.getCurrentFrame():getParent().args['sublabel'..tostring(childNumber-1)] or ""  -- request in addLabel

		--styleString = ' style="border-left:' .. leftBorder ..';border-top:0;border-right:0;border-bottom:0;vertical-align:top;text-align:center;"'
		styleString = ' style="border:0;border-left:' .. leftBorder ..';vertical-align:top;text-align:center;"'
		--cladeString = cladeString .. '| ' .. styleString .. ' | <br/> ' -- for sublabel ' | y<br/> '
		cladeString = cladeString .. '|' .. styleString .. '|' ..  p.addLabel(childNumber-1,subLabel)
	end 
   
   -- new row
   cladeString = cladeString .. '\n|-'

	-- now add cell with label
	styleString = ''
	if childNumber == 1 then
		-- the width gives minimum spacing when all labels are empty (was 1.5em)
		--styleString = ' style="width:1em;border-bottom:' .. bottomBorder .. ';border-left:0;border-top:0;border-right:0;padding:0 0.2em;vertical-align:bottom;text-align:center;' .. branchStyle .. '"'
		styleString = ' style="width:1em;border:0;padding:0 0.2em;border-bottom:' .. bottomBorder .. ';vertical-align:bottom;text-align:center;' .. branchStyle .. '"'
 	else -- for 2-17
    	styleString = ' style="border:0;padding:0 0.2em;border-left:' .. leftBorder .. ';border-bottom:' .. bottomBorder .. ';vertical-align:bottom;text-align:center;' .. branchStyle .. '"'
	end
    cladeString = cladeString .. '\n|' .. styleString  .. '|' .. p.addLabel(childNumber,nodeLabel) -- p.addLabel(nodeLabel)

	-- add cell with leaf (which may be a table with transluded content)
    --cladeString = cladeString .. '|| rowspan=2 style="border: 0; padding: 0; border-right: ' .. barRight .. ';border-bottom: ' .. barBottom .. ';border-top: ' .. barTop .. ';' .. branchStyle .. ' " | '
	styleString = ''  
    if barRight  ~= "0"  then 
    	styleString = 'style="border:0;padding:0;border-right:' .. barRight .. ';border-bottom:' .. barBottom .. ';border-top:' .. barTop .. ';' .. branchStyle .. '"'
    else
    	styleString = 'style="border:0;padding:0;' .. branchStyle .. '"'
    end

    cladeString = cladeString .. '||rowspan=2 ' .. styleString .. '|'
    -- note: this is where leading spaces can be added to labels and leaves. This was commented out in the clade template. Most trees seem to have added spaces, to would need to check for existing spaces; however, cladex uses it
    -- or could use padding:0 0.2em in cell style as for labels
    cladeString = cladeString .. '\n' .. nodeLeaf
    
    -- stuff for right-hand bar-bracket
	if barRight  ~= "0"  then 
    	cladeString = cladeString .. '&nbsp;&nbsp;'            -- add spaces between leaf text and bar
		if barLabel ~= "" then 
			-- cladeString = cladeString ..  '\n| ' .. barLabel end  -- experiment for labeling the bar
			cladeString = cladeString .. '<td style="vertical-align:middle;">' .. barLabel ..'</td>' 
		end
	end 
	if groupLabel ~= ""then 
    	--cladeString = cladeString .. '&nbsp;&nbsp;'            -- add spaces between leaf text and bar (could use padding)
		cladeString = cladeString .. '<td style="'.. groupLabelStyle .. '">' .. groupLabel ..'</td>' 
	end 	

	-- add row	(needed because of rowspan=2); 
    -- note: the cell will be added on the next iteration of addTaxon (with left border) or after the main loop (without left border)
    local branchStyleString = 'style="' .. branchStyle .. '"  ' 
    if branchStyle == '' then branchStyleString = ''  end -- avoid empty style elements
	cladeString = cladeString .. '\n|-' .. branchStyleString
	
	-- TODO code to put whole row here instead of completing on next call to addTaxon() or after main loop

	
	return cladeString
end

--[[ adds text for label or sublabel to a cell
]]
function p.addLabel(childNumber,nodeLabel)
	
	--local nodeLabel = mw.getCurrentFrame():getParent().args['label'..tostring(childNumber)] or ""

	local firstChars = string.sub(nodeLabel, 1,2) -- get first two characters; will be {{ if no parameter (for Old method?)
	--if nodeLabel ~= "{{{label1}}}" then
	if firstChars == "{{{" or nodeLabel == "" then
		return '<br/>' --'&nbsp;<br/>'  -- remove space to reduce post-expand include size (the width=1.5em handles spacing)
	else
		-- spaces can cause  wrapping and can break tree structure, hence use span with nowrap class
		--return '<span class="nowrap">' .. nodeLabel .. '</span>'
		
		-- a better method for template expansion size is to replace spaces with nonbreaking spaces
		-- however, there is a problem if labels have a styling element (e.g. <span style= ..., <span title= ...)
		local stylingElementDetected = false
		if string.find(nodeLabel, "span ") ~= nil  then  stylingElementDetected = true end
		if string.find(nodeLabel, " style") ~= nil then stylingElementDetected = true end 
		
		if stylingElementDetected == true then 
			return '<span class="nowrap">' .. nodeLabel .. '</span>'
    	else	
    		local nowrapString = string.gsub(nodeLabel," ", "&nbsp;") -- replace spaces with non-breaking space
			return nowrapString
		end
	end
end



--[[=================== Newick string handling function =============================
]]
function p.getNewickOuterterm(newickString)
	return string.gsub(newickString, "%b()", "")   -- delete parenthetic term
end
function p.newick(count,newickString)
	local cladeString = ""
	count = count+1
	--start table
	cladeString = cladeString .. '{| style="border-collapse:collapse;border-spacing:0;border:0;margin:0;'  
	
	local j,k
	j,k = string.find(newickString, '%(.*%)')                 -- find location of outer parenthesised term
	local innerTerm = string.sub(newickString, j+1, k-1)      -- select content in parenthesis
	local outerTerm = string.gsub(newickString, "%b()", "")   -- delete parenthetic term
	if outerTerm == 'panthera' then outerTerm = "x" end     -- how is this set in local variable for inner nodes?
	
	outerTerm = tostring(count)
	
	-- need to remove commas in bracket terms before split, so temporarily replace commas between brackets
    local innerTerm2 =  string.gsub(innerTerm, "%b()",  function (n)
                                         	return string.gsub(n, ",%s*", "XXX")  -- also strip spaces after commas here
                                            end)
	--cladeString = cladeString .. '\n' .. p.addTaxon(1, innerTerm2, "")

	local s = strsplit(innerTerm2, ",")
	local i=1	
	while s[i] do	
		restoredString = string.gsub(s[i],"XXX", ",")   -- convert back to commas
		--restoredString = s[i]
		local outerTerm = string.gsub(restoredString, "%b()", "")
		if string.find(restoredString, '%(.*%)') then
			--cladeString = cladeString .. '\n' .. p.addTaxon(i, restoredString, "x")
			cladeString = cladeString .. '\n' .. p.addTaxon(i, p.newick(count,restoredString), outerTerm)
			-- p.addTaxon(2, p.newick(count,newickString2), "root")
		else
			cladeString = cladeString .. '\n' .. p.addTaxon(i, restoredString, "") --count)
		end
		i=i+1
	end

	-- close table
	cladeString = cladeString ..  '\n' .. '| style="border: 0; padding: 0; vertical-align: top;" | <br/> \n|}'
	
	return cladeString
end
-- emulate a standard split string function
function strsplit(inputstr, sep) 
        if sep == nil then
                sep = "%s"
        end
        local t={} ; i=1
        for str in string.gmatch(inputstr, "([^"..sep.."]+)") do
                t[i] = str
                i = i + 1
        end
        return t
end


-- Bits from Peter Coxhead's module
--    https://en.wikipedia.org/w/index.php?title=Module:Autotaxobox&action=edit

--[[
Utility function primarily intended for use in checking and debugging.
Returns number of levels in a taxonomic hierarchy, starting from
the supplied taxon as level 1.
Usage: {{#invoke:Autotaxobox|nLevels|TAXON}}
]]
function p.nLevels(frame)
	local currTaxon = frame.args[1]
    local i = 1
	local maxN = 2
	local searching = true
	while searching and i < maxN  do
		--local parent = frame:expandTemplate{ title = 'Template:Taxonomy/' .. currTaxon, args = {['machine code'] = 'parent' } }
		local parent = frame:expandTemplate{ title =  currTaxon, args = {['machine code'] = 'parent' } }
		if parent ~= '' then
			currTaxon = parent
			i = i + 1
		else
			searching = false
		end
	end
	if searching then return currTaxon --maxN .. '+'
	else return i
	end
end

--[[
Utility function primarily intended for use in checking and debugging.
Returns a comma separated list of a taxonomic hierarchy, starting from
the supplied taxon.
Usage: {{#invoke:Autotaxobox|listAll|TAXON}}
]]
function p.listAll(frame)
	local currTaxon = frame.args[1]
	local i = 1
	local searching = true
	local maxN = 100
	local lst = currTaxon
	while i < maxN and searching do
		local currCall = 'Template:Taxonomy/' .. currTaxon
		local parent = frame:expandTemplate{ title = currCall, args = {['machine code'] = 'parent' } }
		if parent ~= '' then
			currTaxon = parent
			lst = lst .. ', ' .. currTaxon
			i = i + 1
		else
			searching = false
		end
	end
	if searching then lst = lst .. '...' end
	return lst .. ' (' .. i .. ')'
end

-- =================== experimental Newick to clade parser function =============================

--[[Function of convert Newick strings to clade format

Usage: {{#invoke:Module:Sandbox/Jts1882/CladeN|newickConverter|newickstring={{{NEWICK_STRING}}} }}
]]
function p.newickConverter(frame)
	
	local newickString = frame.args['newickstring']
	
	
	if newickString == '{{{newickstring}}}' then return newickString  end

	-- show the Newick string
	local cladeString = ''
	local levelNumber = 1           --  for depth of iteration
	local childNumber = 1           --  number of sister elements on node  (always one for root)
	
	--  converted the newick string to the clade structure
	cladeString = cladeString .. '{{clade'
	cladeString = cladeString .. p.newickParseLevel(newickString, levelNumber, childNumber) 
	cladeString = cladeString .. '\r}}'  

	local resultString = ''
    local option = mw.getCurrentFrame():getParent().args['option'] or ''
    if option == 'tree' then
	 	--show the transcluded clade diagram
		resultString =   cladeString    	
    else
    	-- show the Newick string
		resultString = '<pre>'..newickString..'</pre>'	
	    -- show the converted clade structure
	    resultString = resultString .. '<pre>'.. cladeString ..'</pre>'	
    end
    --resultString = frame:expandTemplate{ title = 'clade',  frame:preprocess(cladeString) }

    return resultString
end

--[[ Parse one level of Newick sting
     This function recieves a Newick string, which has two components
      1. the right hand term is a clade label: |labelN=labelname
      2. the left hand term in parenthesis has common delimited child nodes, each of which can be
           i.  a taxon name which just needs:  |N=leafname 
           ii. a Newick string which needs further processing through reiteration
]]
function p.newickParseLevel(newickString,levelNumber,childNumber)

    
	local cladeString = ""
	local indent = p.getIndent(levelNumber) 
	--levelNumber=levelNumber+1
	
	local j=0
	local k=0
	j,k = string.find(newickString, '%(.*%)')                 -- find location of outer parenthesised term
	local innerTerm = string.sub(newickString, j+1, k-1)      -- select content in parenthesis
	local outerTerm = string.gsub(newickString, "%b()", "")   -- delete parenthetic term

	cladeString = cladeString .. indent .. '|label'..childNumber..'='  .. outerTerm
	cladeString = cladeString .. indent .. '|' .. childNumber..'='  .. '{{clade'

	levelNumber=levelNumber+1
	indent = p.getIndent(levelNumber)
	
		-- protect commas in inner parentheses from split; temporarily replace commas between parentheses
	    local innerTerm2 =  string.gsub(innerTerm, "%b()",  function (n)
	                                         	return string.gsub(n, ",%s*", "XXX")  -- also strip spaces after commas here
	                                            end)
	
		local s = strsplit(innerTerm2, ",")
		local i=1	
		while s[i] do	
			restoredString = string.gsub(s[i],"XXX", ",")   -- convert back to commas
	
			local outerTerm = string.gsub(restoredString, "%b()", "")
			if string.find(restoredString, '%(.*%)') then
				--cladeString = cladeString .. indent .. '|y' .. i .. '=' .. p.newickParseLevel(restoredString,levelNumber+1,i) 
				cladeString = cladeString  .. p.newickParseLevel(restoredString,levelNumber,i) 
			else
				cladeString = cladeString .. indent .. '|' .. i .. '=' .. restoredString --.. '(level=' .. levelNumber .. ')'
			end
			i=i+1
		end
--    end -- end splitting of strings

	cladeString = cladeString .. indent .. '}}'  
    return cladeString
end

function p.getIndent(levelNumber)
	local indent = "\r"
	local extraIndent = mw.getCurrentFrame():getParent().args['indent'] or 0
	
	while tonumber(extraIndent) > 0 do
	    indent = indent .. " " -- an extra indent to make aligining compound trees easier
	    extraIndent = extraIndent - 1
	end
	
	while levelNumber > 1 do
		indent = indent .. "   "
		levelNumber = levelNumber-1
	end
	return indent
end

function p.newickstuff(newickString)

	
end

------------------------------------------------------------------------------------------

function p.test(dummy)
	local dataString = ""
    dataString =	"NEWCLADE:"
    
    local childNumber =0
    local lastNode = 0
	while 	childNumber < 17 do -- disable moreNeeded 
	
		childNumber = childNumber + 1 -- so we start with 1
		local nodeLeaf = mw.getCurrentFrame():getParent().args[tostring(childNumber)]  or "" -- get data from |N=
		--local nodeLabel = mw.getCurrentFrame():getParent().args['label'..tostring(childNumber)] or ""  -- get data from |labelN=
        if nodeLeaf ~= "" then
			dataString = dataString .. tostring(childNumber)

			local firstChars = string.sub(nodeLeaf, 1,2) -- get first two characters
			--if nodeLabel ~= "{{{label1}}}" then
			if firstChars == "{{"  then
                dataString = dataString .. 'XXX' .. nodeLeaf
			end
			dataString = dataString .. 'LEAF:' .. nodeLeaf
			
			lastNode = childNumber
		end
	end
    local numClades=0
    local numBranches=0
    -- _, count = string.gsub(dataString, "NEWCLADE", "NEXT")
   
    for i in string.gmatch(dataString, "NEWCLADE") do
   		numClades = numClades + 1
     end
    dataString =   dataString .. '<br/>(numClades=' .. numClades .. ')'
    for i in string.gmatch(dataString, "LEAF") do
   		numBranches = numBranches + 1
     end
    dataString =   dataString .. '<br/>(numClades=' .. numClades .. ')'
    dataString =   dataString .. '<br/>(numBranches=' .. numBranches .. ')'
    
	mw:log(numClades)
	
	--return 'numClades=' .. numClades .. '; numBranches=' .. numBranches
	return  dataString 
end
function p.test2(target)
	local target ="Usuariu:Oriciu/sandbox/templates/Template:Passeroidea"
	local result = mw.getCurrentFrame():expandTemplate{ title = target, args = {['style'] = '' } }
	return result
end

function p.hidden(frame)
    
    local id = mw.getCurrentFrame():getParent().args['id'] or ""
    local mode = mw.getCurrentFrame():getParent().args['mode'] or "right"
    local expandSymbol = mw.getCurrentFrame():getParent().args['expand-symbol'] or "&#8862;"
    local collapseSymbol = mw.getCurrentFrame():getParent().args['collapse-symbol'] or "&#8863;"
    local initialState = mw.getCurrentFrame():getParent().args['expanded']
    
    -- default is content collapsed
    local contentState = " mw-collapsed" -- class to collapse content at start
    local collapseSymbolState = " mw-collapsed"
    local expandSymbolState = ""
    if initialState then
       contentState = ""
       collapseSymbolState =  ""
       expandSymbolState = " mw-collapsed" 
    end
    	
	
    -- collapsible element containing the expand sympol and/or text
    local expandSymbolString = '<td style="padding:0 0 0.25em 0;">' 
                .. '<div class="mw-collapsible' .. expandSymbolState .. '" id="mw-customcollapsible-expandSymbol' .. id .. '">'
                .. '<div class="mw-collapsible-content mw-customtoggle-expandSymbol' .. id .. '">'
                .. '<span class="mw-customtoggle-myClade' .. id 
                ..             ' mw-customtoggle-collapseSymbol' .. id 
                ..             ' mw-customtoggle-expandSymbol' .. id 
                ..    '" style="font-size:100%;">' .. expandSymbol .. '</span>'
                .. '</div></div></td>'
    
    -- collapsible element containing the clade content 
    local contentString = '<td style="padding:0;">'
                .. '<div class="mw-collapsible' .. contentState .. '" id="mw-customcollapsible-myClade' .. id .. '>'
                .. '<div class="mw-collapsible-content mw-customtoggle-NOT_ON_CONTENT" >' -- don't toggle on the content
                
                .. '\n' .. p.main(frame)  -- important to start wikitext tables on new line
                .. '</div></div></td>'
    
    -- collapsible element containing the collapse sympol and/or text
    local collapseSymbolString = '<td style="padding:0 0 0.4em 0;">'
                .. '<div class="mw-collapsible' .. collapseSymbolState .. '" id="mw-customcollapsible-collapseSymbol' .. id .. '">'
                .. '<div class="mw-collapsible-content mw-customtoggle-collapseSymbol' .. id .. '" >'
                .. '<span class="mw-customtoggle-expandSymbol' .. id 
                            .. ' mw-customtoggle-myClade' .. id 
                            .. ' mw-customtoggle-collapseSymbol' .. id 
                            .. ' " style="font-size:100%;" >' .. collapseSymbol .. '</span>'
                            .. '</div></div></td>'


	local tableStyle = frame.args.style or ""
	if tableStyle == '{{{style}}}' then tableStyle = "" end
 	local cladeString = '<table style="border-spacing:0;margin:0;'..tableStyle ..'"><tr>'
    cladeString = cladeString .. expandSymbolString 
    if mode == "left" then
    	cladeString = cladeString .. collapseSymbolString
    end
    cladeString = cladeString .. contentString 
    if mode == "right" then
    	cladeString = cladeString .. collapseSymbolString
    end
    -- Note: if we want collapse string left and right it needs an extra element with a different id
    cladeString = cladeString ..  '</tr></table>'


return cladeString
end



-- this must be at end

return p