Module:TaxonItalics

--[[========================================================================= Italicize a taxon name appropriately by invoking italicizeTaxonName. The algorithm used is:

• If the name has italic markup at the start or the end, do nothing.
• Else

 * 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.

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

local p = {}

local cTerms3 = { subspecies = "subsp.", ["subsp."] = "subsp.", subsp = "subsp.", ["ssp."] = "subsp.", ssp = "subsp.", varietas = "var.", ["var."] = "var.", var = "var.", subvarietas = "subvar.", ["subvar."] = "subvar.", subvar = "subvar.", forma = "f.", ["f."] = "f.", f = "f.", subforma = "subf.", ["subf."] = "subf.", subf = "subf." } local cTerms2 = { subgenus = "subg.", ["subg."] = "subg.", subg = "subg.", section = "sect.", ["sect."] = "sect.", ["cf."] = "cf.", cf = "cf.", ["c.f."] = "cf." }

--[[========================================================================= Italicize a taxon name appropriately. =============================================================================]] function p.main(frame) local name = frame.args[1] or local linked = frame.args['linked'] == 'yes' return p.italicizeTaxonName(name, linked) end

function p.italicizeTaxonName(name, linked) local italMarker = "" -- trim the name and replace any use of the HTML italic tags by Wikimedia markup name = string.gsub(string.gsub(mw.text.trim(name), "", italMarker), "", italMarker) 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 internal italics local words = mw.text.split(name, " ", true) local deitalicized = false if #words == 4 then -- test for the third word of a four word name being a connecting term if cTerms3[words[3]] then -- de-italicize the connecting term by adding internal italic markup result = words[1] .. " " .. words[2] .. italMarker .. " " .. cTerms3[words[3]] .. italMarker .. " " .. words[4] deitalicized = true end elseif #words == 3 then -- test for the second word of a three word name being a connecting term if cTerms2[words[2]] then -- de-italicize the connecting term by adding internal italic markup result = words[1] .. " " .. italMarker .. cTerms2[words[2]] .. italMarker .. " " .. words[3] deitalicized = true end else -- do nothing result = name end -- add outside markup if linked then if deitalicized then result = "" .. italMarker .. result .. italMarker .. "" else result = italMarker .. "" .. name .. "" .. italMarker end else result = italMarker .. result .. italMarker end end end return result end

return p