“Module:Check for unknown parameters/sandbox”的意思、由来-开放百科全书

词条

Module:Check for unknown parameters/sandbox

释义

-- This module may be used to compare the arguments passed to the parent-- with a list of arguments, returning a specified result if an argument is-- not on the list

local p = {}

local function trim(s)

return s:match('^%s*(.-)%s*$')

end

local function isnotempty(s)

return s and s:match('%S')

end

local function clean(text)

-- Return text cleaned for display and truncated if too long.

-- Strip markers are replaced with dummy text representing the original wikitext.

local pos, truncated

local function truncate(text)

if truncated then

return

end

if mw.ustring.len(text) > 25 then

truncated = true

text = mw.ustring.sub(text, 1, 25) .. '...'

end

return mw.text.nowiki(text)

end

local parts = {}

for before, tag, remainder in text:gmatch('([^\\127]*)\\127[^\\127]*%-(%l+)%-[^\\127]*\\127()') do

pos = remainder

table.insert(parts, truncate(before) .. '<' .. tag .. '>...</' .. tag .. '>')

end

table.insert(parts, truncate(text:sub(pos or 1)))

return table.concat(parts)

end

function p.check (frame)

local args = frame.args

local pargs = frame:getParent().args

local ignoreblank = isnotempty(args['ignoreblank'])

local showblankpos = isnotempty(args['showblankpositional'])

local knownargs = {}

local unknown = args['unknown'] or 'Found _VALUE_, '

local preview = args['preview']

local values = {}

local res = {}

local regexps = {}

-- create the list of known args, regular expressions, and the return string

for k, v in pairs(args) do

if type(k) == 'number' then

v = trim(v)

knownargs[v] = 1

elseif k:find('^regexp[1-9][0-9]*$') then

table.insert(regexps, '^' .. v .. '$')

end

if isnotempty(preview) then

preview = '

Warning: ' .. preview .. ' (this message is shown only in preview).

elseif preview == nil then

preview = unknown

end

-- loop over the parent args, and make sure they are on the list

for k, v in pairs(pargs) do

if type(k) == 'string' and knownargs[k] == nil then

local knownflag = false

for _, regexp in ipairs(regexps) do

if mw.ustring.match(k, regexp) then

knownflag = true

break

end

if not knownflag and ( not ignoreblank or isnotempty(v) ) then

table.insert(values, clean(k))

end

elseif type(k) == 'number' and

knownargs[tostring(k)] == nil and

( showblankpos or isnotempty(v) )

then

table.insert(values, k .. ' = ' .. clean(v))

end

-- add results to the output tables

if #values > 0 then

if frame:preprocess( "{{REVISIONID}}" ) == "" then

unknown = preview

end

for _, v in pairs(values) do

if v == then

-- Fix odd bug for | = which gets stripped to the empty string and

-- breaks category links

v = ' '

end

-- avoid error with v = 'example%2' ("invalid capture index")

local r = unknown:gsub('_VALUE_', {_VALUE_ = v})

table.insert(res, r)

end

return table.concat(res)

end

return p

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