Module:Labelled list hatnote: Difference between revisions
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m 5 revisions imported from wikipedia:Module:Labelled_list_hatnote |
Fixed iteration-and-removal bug |
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Line 10: | Line 10: | ||
local mHatlist = require('Module:Hatnote list') |
local mHatlist = require('Module:Hatnote list') |
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local mArguments --initialize lazily |
local mArguments --initialize lazily |
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local yesno --initialize lazily |
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local p = {} |
local p = {} |
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Line 18: | Line 19: | ||
prefixes = {'label', 'label ', 'l'}, |
prefixes = {'label', 'label ', 'l'}, |
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template = 'Module:Labelled list hatnote' |
template = 'Module:Labelled list hatnote' |
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} |
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-- Localizable message strings |
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local msg = { |
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errorSuffix = '#Errors', |
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⚫ | |||
noOutputWarning = |
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"'''[[%s]] — no output: none of the target pages exist.'''" |
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} |
} |
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Line 26: | Line 35: | ||
-- They each have numbers auto-appended, e.g. 'label1', 'label 1', & 'l1' |
-- They each have numbers auto-appended, e.g. 'label1', 'label 1', & 'l1' |
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prefixes = prefixes or defaults.prefixes |
prefixes = prefixes or defaults.prefixes |
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local |
local indices = {} |
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local sparsePages = {} |
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for k, v in pairs(args) do |
for k, v in pairs(args) do |
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if type(k) == 'number' then |
if type(k) == 'number' then |
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⚫ | |||
local display |
local display |
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for i = 1, #prefixes do |
for i = 1, #prefixes do |
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Line 34: | Line 45: | ||
if display then break end |
if display then break end |
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end |
end |
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sparsePages[k] = display and |
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string.format('%s|%s', string.gsub(v, '|.*$', ''), display) or v |
string.format('%s|%s', string.gsub(v, '|.*$', ''), display) or v |
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⚫ | |||
end |
end |
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end |
end |
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table.sort(indices) |
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⚫ | |||
for k, v in ipairs(indices) do pages[#pages + 1] = sparsePages[v] end |
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return pages |
return pages |
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end |
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--Helper function to get a page target from a processed page string |
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--e.g. "Page|Label" → "Page" or "Target" → "Target" |
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local function getTarget(pagename) |
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local pipe = string.find(pagename, '|') |
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return string.sub(pagename, 0, pipe and pipe - 1 or nil) |
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end |
end |
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Line 49: | Line 69: | ||
function p.labelledList (frame) |
function p.labelledList (frame) |
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mArguments = require('Module:Arguments') |
mArguments = require('Module:Arguments') |
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yesno = require('Module:Yesno') |
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local labels = {frame.args[1] or defaults.label} |
local labels = {frame.args[1] or defaults.label} |
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labels[2] = frame.args[2] or labels[1] |
labels[2] = frame.args[2] or labels[1] |
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Line 57: | Line 78: | ||
local pages = p.preprocessDisplays(args) |
local pages = p.preprocessDisplays(args) |
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local options = { |
local options = { |
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category = yesno(args.category), |
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extraclasses = frame.args.extraclasses, |
extraclasses = frame.args.extraclasses, |
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ifexists = yesno(frame.args.ifexists), |
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namespace = frame.args.namespace or args.namespace, |
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selfref = yesno(frame.args.selfref or args.selfref), |
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template = template |
template = template |
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} |
} |
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Line 66: | Line 89: | ||
function p._labelledList (pages, labels, options) |
function p._labelledList (pages, labels, options) |
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if options.ifexists then |
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⚫ | |||
for k = #pages, 1, -1 do --iterate backwards to allow smooth removals |
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⚫ | |||
local v = pages[k] |
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⚫ | |||
local title = mw.title.new(getTarget(v), namespace) |
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⚫ | |||
if (v == '') or title == nil or not title.exists then |
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⚫ | |||
table.remove(pages, k) |
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⚫ | |||
end |
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end |
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end |
end |
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⚫ | |||
label = (#pages == 1 and labels[1] or labels[2]) or defaults.label |
label = (#pages == 1 and labels[1] or labels[2]) or defaults.label |
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for k, v in pairs(pages) do |
for k, v in pairs(pages) do |
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Line 83: | Line 108: | ||
(labels[4] or labels[2] or defaults.label) |
(labels[4] or labels[2] or defaults.label) |
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) or defaults.label |
) or defaults.label |
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end |
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end |
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if #pages == 0 then |
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if options.ifexists then |
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mw.addWarning( |
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string.format( |
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msg.noOutputWarning, options.template or defaults.template |
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) |
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) |
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return '' |
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else |
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⚫ | |||
msg.noInputWarning, |
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⚫ | |||
⚫ | |||
) |
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end |
end |
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end |
end |