Module:MultiReplace
p = {}
function p.main(frame) local args = frame:getParent().args local input = args[1] or "{{{1}}}" local plain = args.plain == "yes"
local i = 1
local changeList = {}
while args[i * 2] do
local change = {pattern = args[i * 2], repl = args[i * 2 + 1]}
if not change.repl then
return frame:expandTemplate{
title = 'Error',
args = { 'Multireplace: Unpaired argument: ' .. (i * 2) .. ' = ' .. change.pattern .. '' }
}
end
changeList[i] = change
i = i + 1
end
local matchList = {} local pos = 1 local len = mw.ustring.len(input) local result = "" while pos <= len do local bestStart = len + 1 local bestStop = len local bestChange for _, change in ipairs(changeList) do local start, stop = mw.ustring.find(input, change.pattern, pos, plain) if start and (start < bestStart) then bestStart = start bestStop = stop bestChange = change end end result = result .. mw.ustring.sub(input, pos, bestStart - 1) if bestChange then local fragment = mw.ustring.sub(input, bestStart, bestStop) result = result .. (plain and bestChange.repl or mw.ustring.gsub(fragment, bestChange.pattern, bestChange.repl, 1)) end pos = bestStop + 1 end return result end
return p
