Module:TaxonItalics

local p = {}

--[[========================================================================= Italicize a taxon name appropriately by invoking italicizeTaxonName. The algorithm used is: * Remove (internal) italic markup.  * If the name is made up of four words and the third word is a    botanical connecting term, de-italicize the connecting term and add italic    markup to the outside of the name.  * Else if the name is made up of three words and the second word is a    botanical connecting term or a variant of "cf.", de-italicize the    connecting term and add italic markup to the outside of the name.  * Else just add italic markup to the outside of the name. The module also: * Ensures that the hybrid symbol, ×, and parentheses are not italicized * Has an option to abbreviate all parts of taxon names other than the last   to the first letter (e.g. "Pinus sylvestris var. sylvestris" becomes   "P. s. var. sylvestris"). * Has an option to wikilink the italicized name to the input name.
 * If the name has italic markup at the start or the end, do nothing.
 * Else

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================================================================]]

--connecting terms in three part names (e.g. Pinus sylvestris var. sylvestris) local cTerms3 = { --subsp. subspecies = "subsp.", ["subsp."] = "subsp.", subsp = "subsp.", ["ssp."] = "subsp.", ssp = "subsp.", --var. varietas = "var.", ["var."] = "var.", var = "var.", --subvar. subvarietas = "subvar.", ["subvar."] = "subvar.", subvar = "subvar.", --f. forma = "f.", ["f."] = "f.", f = "f.", --subf. subforma = "subf.", ["subf."] = "subf.", subf = "subf." } --connecting terms in two part names (e.g. Pinus sect. Pinus) local cTerms2 = { --subg. subgenus = "subg.", ["subg."] = "subg.", subg = "subg.", --supersect. supersection = "supersect.", ["supersect."] = "supersect.", supersect = "supersect.", --sect. section = "sect.", ["sect."] = "sect.", sect = "sect.", --subsect. subsection = "subsect.", ["subsect."] = "subsect.", subsect = "subsect.", --ser. series = "ser.", ["ser."] = "ser.", ser = "ser.", --subser. subseries = "subser.", ["subser."] = "subser.", subser = "subser.", --cf. cf = "cf.", ["cf."] = "cf.", ["c.f."] = "cf." }

--[[========================================================================= Main function to italicize a taxon name appropriately.

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================================================================]] function p.main(frame) local name = frame.args[1] or '' local linked = frame.args['linked'] == 'yes' local abbreviated = frame.args['abbreviated'] == 'yes' return p.italicizeTaxonName(name, linked, abbreviated) end

--[[========================================================================= Utility function to abbreviate an input string to its first character followed by ".". Both "×" and an HTML entity at the start of the string are skipped over in determining first character, as is an opening parenthesis, which causes a closing parenthesis to be included.

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================================================================]] function p.abbreviate(str) local result = "" local hasParentheses = false if mw.ustring.len(str) < 2 then --single character strings are left unchanged result = str else --skip over an opening parenthesis that could be present at the start of the string if mw.ustring.sub(str,1,1) == "(" then			hasParentheses = true			result = "(" str = mw.ustring.sub(str,2,mw.ustring.len(str)) end --skip over a hybrid symbol that could be present at the start of the string if mw.ustring.sub(str,1,1) == "×" then result = "×" str = mw.ustring.sub(str,2,mw.ustring.len(str)) end --skip over an HTML entity that could be present at the start of the string if mw.ustring.sub(str,1,1) == "&" then local i,dummy = mw.ustring.find(str,";",2,plain) result = result .. mw.ustring.sub(str,1,i) str = mw.ustring.sub(str,i+1,mw.ustring.len(str)) end --if there's anything left, reduce it to its first character plus ".", --adding the closing parenthesis if required if str ~= "" then result = result .. mw.ustring.sub(str,1,1) .. "."			if hasParentheses then result = result .. ")" end		end	end	return result end

--[[========================================================================= The function which does the italicization.

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================================================================]] function p.italicizeTaxonName(name, linked, abbreviated) local italMarker = "''" -- begin by tidying the input name: trim; replace any use of the HTML -- italic tags by Wikimedia markup; replace any alternatives to the hybrid -- symbol by the symbol itself; prevent the hybrid symbol being treated as   -- a 'word' by converting a following space to the HTML entity name = string.gsub(mw.text.trim(name), "", italMarker) name = string.gsub(string.gsub(name, "&#215;", "×"), "&times;", "×") name = string.gsub(name, "", "") -- remove any span markup name = string.gsub(name, "× ", "×&#32;") -- now italicize and abbreviate if required local result = name if name ~= '' then if string.sub(name,1,2) == "" or string.sub(name,-2) == "" then -- do nothing if the name already has italic markers at the start or end else name = string.gsub(name, "''", "") -- first remove any internal italics local words = mw.text.split(name, " ", true) if #words == 4 and cTerms3[words[3]] then -- the third word of a four word name is a connecting term -- ensure the connecting term isn't italicized words[3] = ' ' .. cTerms3[words[3]] .. ' '               if abbreviated then words[1] = p.abbreviate(words[1]) words[2] = p.abbreviate(words[2]) end result = words[1] .. " " .. words[2] .. " " .. words[3] .. " " .. words[4] elseif #words == 3 and cTerms2[words[2]] then -- the second word of a three word name is a connecting term -- ensure the connecting term isn't italicized words[2] = ' ' .. cTerms2[words[2]] .. ' '               if abbreviated then words[1] = p.abbreviate(words[1]) end result = words[1] .. " " .. words[2] .. " " .. words[3] else -- not a name as above; only deal with abbreviation if abbreviated then if #words > 1 then result = p.abbreviate(words[1]) for i = 2, #words-1, 1 do result = result .. " " .. p.abbreviate(words[i]) end result = result .. " " .. words[#words] end else result = name end end -- deal with any hybrid symbol as it should not be italicized result = string.gsub(result, "×", ' × ') -- deal with any parentheses as they should not be italicized result = string.gsub(string.gsub(result,"%(",' ( '),"%)",' ) ') -- add outside markup if linked then if result ~= name then result = "" .. italMarker .. result .. italMarker .. "" else result = italMarker .. "" .. name .. "" .. italMarker end else result = italMarker .. result .. italMarker end end end return result end

return p