Difference between revisions of "Module:Delink/sandbox"
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-- This module de-links most wikitext. | -- This module de-links most wikitext. | ||
| − | + | require('Module:No globals') | |
| − | local function | + | local p = {} |
| − | + | ||
| − | + | local getArgs | |
| − | + | ||
| − | + | local function delinkReversePipeTrick(s) | |
| − | + | if s:match("^%[%[|.*[|\n]") then -- Check for newlines or multiple pipes. | |
| − | + | return s | |
| − | + | else | |
| − | + | return s:match("%[%[|(.*)%]%]") | |
| − | + | end | |
| − | + | end | |
| − | + | ||
| − | + | local function delinkPipeTrick(s) | |
| − | + | local linkarea, display = "", "" | |
| − | + | -- We need to deal with colons, brackets, and commas, per [[Help:Pipe trick]]. | |
| − | + | ||
| − | + | -- First, remove the text before the first colon, if any. | |
| − | + | if s:match(":") then | |
| − | + | s = s:match("%[%[.-:(.*)|%]%]") | |
| − | + | -- If there are no colons, grab all of the text apart from the square brackets and the pipe. | |
| − | + | else | |
| − | + | s = s:match("%[%[(.*)|%]%]") | |
| − | + | end | |
| − | + | ||
| − | + | -- Next up, brackets and commas. | |
| − | + | if s:match("%(.-%)$") then -- Brackets trump commas. | |
| − | + | s = s:match("(.-) ?%(.-%)$") | |
| − | + | elseif s:match(",") then -- If there are no brackets, display only the text before the first comma. | |
| − | + | s = s:match("(.-),.*$") | |
| − | + | end | |
| − | + | return s | |
| − | + | end | |
| − | + | ||
| − | + | local function delinkWikilink(s) | |
| − | + | local result = s | |
| − | + | -- Deal with the reverse pipe trick. | |
| − | + | if result:match("%[%[|") then | |
| − | + | return delinkReversePipeTrick(result) | |
| − | + | end | |
| − | + | ||
| − | + | result = mw.uri.decode(result, "PATH") -- decode percent-encoded entities. Leave underscores and plus signs. | |
| − | + | result = mw.text.decode(result, true) -- decode HTML entities. | |
| − | + | ||
| − | + | -- Check for bad titles. To do this we need to find the | |
| − | + | -- title area of the link, i.e. the part before any pipes. | |
| − | + | local titlearea | |
| − | + | if result:match("|") then -- Find if we're dealing with a piped link. | |
| − | + | titlearea = result:match("^%[%[(.-)|.*%]%]") | |
| − | + | else | |
| − | + | titlearea = result:match("^%[%[(.-)%]%]") | |
| − | + | end | |
| + | -- Check for bad characters. | ||
| + | if mw.ustring.match(titlearea, "[%[%]<>{}%%%c\n]") then | ||
| + | return s | ||
| + | end | ||
| + | |||
| + | -- Check for categories, interwikis, and files. | ||
| + | local colonprefix = result:match("%[%[(.-):.*%]%]") or "" -- Get the text before the first colon. | ||
| + | local ns = mw.site.namespaces[colonprefix] -- see if this is a known namespace | ||
| + | if mw.language.isKnownLanguageTag(colonprefix) | ||
| + | or ( ns and ( ns.canonicalName == "File" or ns.canonicalName == "Category" ) ) then | ||
| + | return "" | ||
| + | end | ||
| + | |||
| + | -- Remove the colon if the link is using the [[Help:Colon trick]]. | ||
| + | if result:match("%[%[:") then | ||
| + | result = "[[" .. result:match("%[%[:(.*%]%])") | ||
| + | end | ||
| + | |||
| + | -- Deal with links using the [[Help:Pipe trick]]. | ||
| + | if mw.ustring.match(result, "^%[%[[^|]*|%]%]") then | ||
| + | return delinkPipeTrick(result) | ||
| + | end | ||
| + | |||
| + | -- Find the display area of the wikilink | ||
| + | if result:match("|") then -- Find if we're dealing with a piped link. | ||
| + | result = result:match("^%[%[.-|(.+)%]%]") | ||
| + | -- Remove new lines from the display of multiline piped links, | ||
| + | -- where the pipe is before the first new line. | ||
| + | result = result:gsub("\n", "") | ||
| + | else | ||
| + | result = result:match("^%[%[(.-)%]%]") | ||
| + | end | ||
| + | |||
| + | return result | ||
end | end | ||
| − | local function | + | local function delinkURL(s) |
| + | -- Assume we have already delinked internal wikilinks, and that | ||
| + | -- we have been passed some text between two square brackets [foo]. | ||
| + | |||
-- If the text contains a line break it is not formatted as a URL, regardless of other content. | -- If the text contains a line break it is not formatted as a URL, regardless of other content. | ||
| − | if | + | if s:match("\n") then |
| − | return s | + | return s |
end | end | ||
| − | + | -- Check if the text has a valid URL prefix and at least one valid URL character. | |
| − | + | local valid_url_prefixes = {"//", "http://", "https://", "ftp://", "gopher://", "mailto:", "news:", "irc://"} | |
| − | + | local url_prefix | |
| − | if | + | for i,v in ipairs(valid_url_prefixes) do |
| − | + | if mw.ustring.match(s, '^%[' .. v ..'[^"%s].*%]' ) then | |
| − | + | url_prefix = v | |
| − | + | break | |
end | end | ||
| − | + | end | |
| − | + | ||
| − | + | -- Get display text | |
| − | + | if not url_prefix then | |
| − | + | return s | |
| − | + | end | |
| − | + | s = s:match("^%[" .. url_prefix .. "(.*)%]") -- Grab all of the text after the URL prefix and before the final square bracket. | |
| − | + | s = s:match('^.-(["<> ].*)') or "" -- Grab all of the text after the first URL separator character ("<> ). | |
| − | end | + | s = mw.ustring.match(s, "^%s*(%S.*)$") or "" -- If the separating character was a space, trim it off. |
| + | |||
| + | local s_decoded = mw.text.decode(s, true) | ||
| + | if mw.ustring.match(s_decoded, "%c") then | ||
| + | return s | ||
| + | else | ||
| + | return s_decoded | ||
| + | end | ||
end | end | ||
| − | local function delinkLinkClass(s, pattern, | + | local function delinkLinkClass(s, pattern, delinkFunction) |
| − | if type(s) | + | if not type(s) == "string" then |
| − | error("Attempt to de-link non-string input.", 2) | + | error("Attempt to de-link non-string input.", 2) |
| − | + | end | |
| − | error('Patterns must begin | + | if not ( type(pattern) == "string" and mw.ustring.sub(pattern, 1, 1) == "^" ) then |
| + | error('Invalid pattern detected. Patterns must begin with "^".', 2) | ||
end | end | ||
-- Iterate over the text string, and replace any matched text. using the | -- Iterate over the text string, and replace any matched text. using the | ||
| − | -- delink function. We need to iterate | + | -- delink function. We need to iterate character by character rather |
| − | -- aren't detected properly. | + | -- than just use gsub, otherwise nested links aren't detected properly. |
| − | local result | + | local result = "" |
| − | + | while s ~= '' do | |
| − | + | -- Replace text using one iteration of gsub. | |
| − | + | s = mw.ustring.gsub(s, pattern, delinkFunction, 1) | |
| − | + | -- Append the left-most character to the result string. | |
| − | + | result = result .. mw.ustring.sub(s, 1, 1) | |
| − | + | s = mw.ustring.sub(s, 2, -1) | |
| − | + | end | |
| − | + | return result | |
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| − | s = | ||
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| − | |||
| − | return | ||
end | end | ||
| − | + | function p._delink(args) | |
local text = args[1] or "" | local text = args[1] or "" | ||
if args.refs == "yes" then | if args.refs == "yes" then | ||
| Line 129: | Line 153: | ||
text = mw.ustring.gsub(text, "UNIQ%w*%-ref%-%d*%-QINU", "") | text = mw.ustring.gsub(text, "UNIQ%w*%-ref%-%d*%-QINU", "") | ||
end | end | ||
| − | if args.comments | + | if not (args.comments == "no") then |
| − | text = | + | text = text:gsub("<!%-%-.-%-%->", "") -- Remove html comments. |
end | end | ||
| − | if args.wikilinks | + | if not (args.wikilinks == "no") then |
| − | text = delinkLinkClass(text, "%[%[ | + | text = delinkLinkClass(text, "^%[%[.-%]%]", delinkWikilink) -- De-link wikilinks. |
end | end | ||
| − | if args.urls | + | if not (args.urls == "no") then |
| − | text = delinkLinkClass(text, " | + | text = delinkLinkClass(text, "^%[.-%]", delinkURL) -- De-link URLs. |
end | end | ||
| − | if args.whitespace | + | if not (args.whitespace == "no") then |
| + | text = text:gsub("<br[ \t]*/?>", "\n") -- Replace HTML line breaks with newlines. | ||
-- Replace single new lines with a single space, but leave double new lines | -- Replace single new lines with a single space, but leave double new lines | ||
-- and new lines only containing spaces or tabs before a second new line. | -- and new lines only containing spaces or tabs before a second new line. | ||
text = mw.ustring.gsub(text, "([^\n \t][ \t]*)\n([ \t]*[^\n \t])", "%1 %2") | text = mw.ustring.gsub(text, "([^\n \t][ \t]*)\n([ \t]*[^\n \t])", "%1 %2") | ||
| − | text = | + | text = text:gsub("[ \t]+", " ") -- Remove extra tabs and spaces. |
| + | end | ||
| + | if args.nowiki == "yes" then | ||
| + | text = '<nowiki />' .. text .. 'foo' | ||
end | end | ||
return text | return text | ||
| Line 148: | Line 176: | ||
function p.delink(frame) | function p.delink(frame) | ||
| − | + | if not getArgs then | |
| − | + | getArgs = require('Module:Arguments').getArgs | |
| − | |||
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| − | |||
| − | |||
| − | |||
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| − | |||
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| − | |||
| − | |||
end | end | ||
| − | + | return p._delink(getArgs(frame, {wrappers = 'Template:Delink'})) | |
| − | return _delink( | ||
end | end | ||
return p | return p | ||
Latest revision as of 16:03, 26 September 2020
Documentation for this module may be created at Module:Delink/sandbox/doc
-- This module de-links most wikitext.
require('Module:No globals')
local p = {}
local getArgs
local function delinkReversePipeTrick(s)
if s:match("^%[%[|.*[|\n]") then -- Check for newlines or multiple pipes.
return s
else
return s:match("%[%[|(.*)%]%]")
end
end
local function delinkPipeTrick(s)
local linkarea, display = "", ""
-- We need to deal with colons, brackets, and commas, per [[Help:Pipe trick]].
-- First, remove the text before the first colon, if any.
if s:match(":") then
s = s:match("%[%[.-:(.*)|%]%]")
-- If there are no colons, grab all of the text apart from the square brackets and the pipe.
else
s = s:match("%[%[(.*)|%]%]")
end
-- Next up, brackets and commas.
if s:match("%(.-%)$") then -- Brackets trump commas.
s = s:match("(.-) ?%(.-%)$")
elseif s:match(",") then -- If there are no brackets, display only the text before the first comma.
s = s:match("(.-),.*$")
end
return s
end
local function delinkWikilink(s)
local result = s
-- Deal with the reverse pipe trick.
if result:match("%[%[|") then
return delinkReversePipeTrick(result)
end
result = mw.uri.decode(result, "PATH") -- decode percent-encoded entities. Leave underscores and plus signs.
result = mw.text.decode(result, true) -- decode HTML entities.
-- Check for bad titles. To do this we need to find the
-- title area of the link, i.e. the part before any pipes.
local titlearea
if result:match("|") then -- Find if we're dealing with a piped link.
titlearea = result:match("^%[%[(.-)|.*%]%]")
else
titlearea = result:match("^%[%[(.-)%]%]")
end
-- Check for bad characters.
if mw.ustring.match(titlearea, "[%[%]<>{}%%%c\n]") then
return s
end
-- Check for categories, interwikis, and files.
local colonprefix = result:match("%[%[(.-):.*%]%]") or "" -- Get the text before the first colon.
local ns = mw.site.namespaces[colonprefix] -- see if this is a known namespace
if mw.language.isKnownLanguageTag(colonprefix)
or ( ns and ( ns.canonicalName == "File" or ns.canonicalName == "Category" ) ) then
return ""
end
-- Remove the colon if the link is using the [[Help:Colon trick]].
if result:match("%[%[:") then
result = "[[" .. result:match("%[%[:(.*%]%])")
end
-- Deal with links using the [[Help:Pipe trick]].
if mw.ustring.match(result, "^%[%[[^|]*|%]%]") then
return delinkPipeTrick(result)
end
-- Find the display area of the wikilink
if result:match("|") then -- Find if we're dealing with a piped link.
result = result:match("^%[%[.-|(.+)%]%]")
-- Remove new lines from the display of multiline piped links,
-- where the pipe is before the first new line.
result = result:gsub("\n", "")
else
result = result:match("^%[%[(.-)%]%]")
end
return result
end
local function delinkURL(s)
-- Assume we have already delinked internal wikilinks, and that
-- we have been passed some text between two square brackets [foo].
-- If the text contains a line break it is not formatted as a URL, regardless of other content.
if s:match("\n") then
return s
end
-- Check if the text has a valid URL prefix and at least one valid URL character.
local valid_url_prefixes = {"//", "http://", "https://", "ftp://", "gopher://", "mailto:", "news:", "irc://"}
local url_prefix
for i,v in ipairs(valid_url_prefixes) do
if mw.ustring.match(s, '^%[' .. v ..'[^"%s].*%]' ) then
url_prefix = v
break
end
end
-- Get display text
if not url_prefix then
return s
end
s = s:match("^%[" .. url_prefix .. "(.*)%]") -- Grab all of the text after the URL prefix and before the final square bracket.
s = s:match('^.-(["<> ].*)') or "" -- Grab all of the text after the first URL separator character ("<> ).
s = mw.ustring.match(s, "^%s*(%S.*)$") or "" -- If the separating character was a space, trim it off.
local s_decoded = mw.text.decode(s, true)
if mw.ustring.match(s_decoded, "%c") then
return s
else
return s_decoded
end
end
local function delinkLinkClass(s, pattern, delinkFunction)
if not type(s) == "string" then
error("Attempt to de-link non-string input.", 2)
end
if not ( type(pattern) == "string" and mw.ustring.sub(pattern, 1, 1) == "^" ) then
error('Invalid pattern detected. Patterns must begin with "^".', 2)
end
-- Iterate over the text string, and replace any matched text. using the
-- delink function. We need to iterate character by character rather
-- than just use gsub, otherwise nested links aren't detected properly.
local result = ""
while s ~= '' do
-- Replace text using one iteration of gsub.
s = mw.ustring.gsub(s, pattern, delinkFunction, 1)
-- Append the left-most character to the result string.
result = result .. mw.ustring.sub(s, 1, 1)
s = mw.ustring.sub(s, 2, -1)
end
return result
end
function p._delink(args)
local text = args[1] or ""
if args.refs == "yes" then
-- Remove any [[Help:Strip markers]] representing ref tags. In most situations
-- this is not a good idea - only use it if you know what you are doing!
text = mw.ustring.gsub(text, "UNIQ%w*%-ref%-%d*%-QINU", "")
end
if not (args.comments == "no") then
text = text:gsub("<!%-%-.-%-%->", "") -- Remove html comments.
end
if not (args.wikilinks == "no") then
text = delinkLinkClass(text, "^%[%[.-%]%]", delinkWikilink) -- De-link wikilinks.
end
if not (args.urls == "no") then
text = delinkLinkClass(text, "^%[.-%]", delinkURL) -- De-link URLs.
end
if not (args.whitespace == "no") then
text = text:gsub("<br[ \t]*/?>", "\n") -- Replace HTML line breaks with newlines.
-- Replace single new lines with a single space, but leave double new lines
-- and new lines only containing spaces or tabs before a second new line.
text = mw.ustring.gsub(text, "([^\n \t][ \t]*)\n([ \t]*[^\n \t])", "%1 %2")
text = text:gsub("[ \t]+", " ") -- Remove extra tabs and spaces.
end
if args.nowiki == "yes" then
text = '<nowiki />' .. text .. 'foo'
end
return text
end
function p.delink(frame)
if not getArgs then
getArgs = require('Module:Arguments').getArgs
end
return p._delink(getArgs(frame, {wrappers = 'Template:Delink'}))
end
return p