Difference between revisions of "Module:Check for unknown parameters"
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(Created page with "-- 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...") |
m (Update module) |
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| Line 35: | Line 35: | ||
end | end | ||
| − | function p. | + | function p._check(args, pargs) |
| − | + | if type(args) ~= "table" or type(pargs) ~= "table" then | |
| − | + | -- TODO: error handling | |
| + | return | ||
| + | end | ||
| + | |||
local ignoreblank = isnotempty(args['ignoreblank']) | local ignoreblank = isnotempty(args['ignoreblank']) | ||
local showblankpos = isnotempty(args['showblankpositional']) | local showblankpos = isnotempty(args['showblankpositional']) | ||
| Line 86: | Line 89: | ||
-- add results to the output tables | -- add results to the output tables | ||
if #values > 0 then | if #values > 0 then | ||
| − | if | + | if mw.getCurrentFrame():preprocess( "{{REVISIONID}}" ) == "" then |
unknown = preview | unknown = preview | ||
end | end | ||
| Line 102: | Line 105: | ||
return table.concat(res) | return table.concat(res) | ||
| + | end | ||
| + | |||
| + | function p.check(frame) | ||
| + | local args = frame.args | ||
| + | local pargs = frame:getParent().args | ||
| + | return p._check(args, pargs) | ||
end | end | ||
return p | return p | ||
Latest revision as of 17:35, 11 July 2020
This module may be appended to a template to check for uses of unknown parameters.
Contents
Usage
Basic usage
{{#invoke:check for unknown parameters|check
| unknown=[[Category:Some tracking category]]
| arg1|arg2|...|argN}}
Or to sort the entries in the tracking category by parameter with a preview error message:
{{#invoke:check for unknown parameters|check
| unknown=[[Category:Some tracking category|_VALUE_]]
| preview=unknown parameter "_VALUE_"
| arg1|arg2|...|argN}}
Or for an explicit red error message:
{{#invoke:check for unknown parameters|check
| unknown=<span class="error">Sorry, I don’t recognize _VALUE_</span>
| arg1|arg2|...|argN}}
Here, arg1, arg2, ..., argN, are the known parameters. Unnamed (positional) parameters can be added too: |1|2|argname1|argname2|.... Any parameter which is used, but not on this list, will cause the module to return whatever is passed with the unknown parameter. The _VALUE_ keyword, if used, will be changed to the name of the parameter. This is useful for either sorting the entries in a tracking category, or for provide more explicit information.
By default, the module makes no distinction between a defined‐but‐blank parameter and a non‐blank parameter. That is, both unlisted |foo=x and |foo= are reported. To only track non‐blank parameters use |ignoreblank=1.
By default, the module ignores blank positional parameters. That is, an unlisted |2= is ignored. To include blank positional parameters in the tracking use |showblankpositional=1.
Lua patterns
This module supports Lua patterns (similar to regular expressions), which are useful when there are many known parameters which use a systematic pattern.
Example
{{Infobox
| above = {{{name|}}}
| label1 = Height
| data1 = {{{height|}}}
| label2 = Weight
| data2 = {{{weight|}}}
| label3 = Website
| data3 = {{{website|}}}
}}<!--
end infobox, start tracking
-->{{#invoke:Check for unknown parameters|check
| unknown = {{main other|[[Category:Some tracking category|_VALUE_]]}}
| preview = unknown parameter "_VALUE_"
| name
| height | weight
| website
}}
-- 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*$')
end
local function isnotempty(s)
return s and s:match('%S')
end
local function clean(text)
-- Return text cleaned for display and truncated if too long.
-- Strip markers are replaced with dummy text representing the original wikitext.
local pos, truncated
local function truncate(text)
if truncated then
return ''
end
if mw.ustring.len(text) > 25 then
truncated = true
text = mw.ustring.sub(text, 1, 25) .. '...'
end
return mw.text.nowiki(text)
end
local parts = {}
for before, tag, remainder in text:gmatch('([^\127]*)\127[^\127]*%-(%l+)%-[^\127]*\127()') do
pos = remainder
table.insert(parts, truncate(before) .. '<' .. tag .. '>...</' .. tag .. '>')
end
table.insert(parts, truncate(text:sub(pos or 1)))
return table.concat(parts)
end
function p._check(args, pargs)
if type(args) ~= "table" or type(pargs) ~= "table" then
-- TODO: error handling
return
end
local ignoreblank = isnotempty(args['ignoreblank'])
local showblankpos = isnotempty(args['showblankpositional'])
local knownargs = {}
local unknown = args['unknown'] or 'Found _VALUE_, '
local preview = args['preview']
local values = {}
local res = {}
local regexps = {}
-- create the list of known args, regular expressions, and the return string
for k, v in pairs(args) do
if type(k) == 'number' then
v = trim(v)
knownargs[v] = 1
elseif k:find('^regexp[1-9][0-9]*$') then
table.insert(regexps, '^' .. v .. '$')
end
end
if isnotempty(preview) then
preview = '<div class="hatnote" style="color:red"><strong>Warning:</strong> ' .. preview .. ' (this message is shown only in preview).</div>'
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
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
end
-- add results to the output tables
if #values > 0 then
if mw.getCurrentFrame():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
end
return table.concat(res)
end
function p.check(frame)
local args = frame.args
local pargs = frame:getParent().args
return p._check(args, pargs)
end
return p