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Module:Citation/CS1/Identifiers: Difference between revisions

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Module:Citation/CS1/Identifiers (edit)

Revision as of 11:28, 24 June 2020

13,509 bytes removed ,  4 years ago
trying to fix error with {{cite}} templates
(biorxiv cat fix?)
(trying to fix error with {{cite}} templates)
Line 1: Line 1:
local identifiers = {};


--[[--------------------------< F O R W A R D  D E C L A R A T I O N S >--------------------------------------
--[[--------------------------< F O R W A R D  D E C L A R A T I O N S >--------------------------------------
Line 8: Line 11:


local cfg; -- table of configuration tables that are defined in Module:Citation/CS1/Configuration
local cfg; -- table of configuration tables that are defined in Module:Citation/CS1/Configuration
local wd_int_lang = (mw.site.server:match ('wikidata') and mw.getCurrentFrame():preprocess('{{int:lang}}')) or '';




--============================<< H E L P E R  F U N C T I O N S >>============================================
--============================<< H E L P E R  F U N C T I O N S >>============================================
--[[--------------------------< W I K I D A T A _ A R T I C L E _ N A M E _ G E T >----------------------------
as an aid to internationalizing identifier-label wikilinks, gets identifier article names from wikidata.
returns :<lang code>:<article title> when <q> has an <article title> for <lang code>; nil else
for identifiers that do not have q, returns nil
for wikis that do not have mw.wikibase installed, returns nil
The call to mw.wikibase.getEntity() bumps the expensive parser function count
]]
local function wikidata_article_name_get (q)
if not is_set (q) or (q and not mw.wikibase) then -- when no q number or when a q number but mw.wikibase not installed on this wiki
return nil; -- abandon
end
local wd_article;
local this_wiki_code = cfg.this_wiki_code; -- wikipedia subdomain; 'en' for en.wikipedia.org
wd_article = mw.wikibase.getEntity (q):getSitelink (this_wiki_code .. 'wiki'); -- fetch article title from wd; nil when no title available at this wiki; bumps expensive parser function count
if wd_article then
wd_article = table.concat ({':', this_wiki_code, ':', wd_article}); -- interwiki-style link without brackets if taken from wd; leading colon required
end
return wd_article; -- article title from wd; nil else
end


--[[--------------------------< E X T E R N A L _ L I N K _ I D >----------------------------------------------
--[[--------------------------< E X T E R N A L _ L I N K _ I D >----------------------------------------------
Line 53: Line 26:
local url_string = options.id;
local url_string = options.id;
local ext_link;
local ext_link;
local this_wiki_code = cfg.this_wiki_code; -- wikipedia subdomain; 'en' for en.wikipedia.org
local this_wiki_code; -- wikipedia subdomain; 'en' for en.wikipedia.org
local wd_article; -- article title from wikidata
if options.encode == true or options.encode == nil then
if options.encode == true or options.encode == nil then
Line 65: Line 37:
end
end


if not (cfg.use_identifier_redirects and is_set (options.redirect)) then -- redirect has priority so if enabled and available don't fetch from wikidata because expensive
this_wiki_code = mw.language.getContentLanguage():getCode(); -- get this wikipedia's language code (subdomain)
wd_article = wikidata_article_name_get (options.q); -- if wikidata has an article title for this wiki, get it;
if string.match (mw.site.server, 'wikidata') then
this_wiki_code = mw.getCurrentFrame():preprocess('{{int:lang}}'); -- on wikidata so use interface language setting instead
end
end
local label_link = (cfg.use_identifier_redirects and is_set (options.redirect) and options.redirect) or wd_article or options.link;


return table.concat ({
return table.concat ({
make_wikilink (label_link, options.label), -- redirect, wikidata link, or locally specified link (in that order)
make_wikilink (options.link, options.label), -- wikidata link or locally specified
options.separator or '&nbsp;',
options.separator or '&nbsp;',
ext_link
ext_link
Line 86: Line 58:


local function internal_link_id(options)
local function internal_link_id(options)
local id = mw.ustring.gsub (options.id, '%d', cfg.date_names.local_digits); -- translate 'local' digits to Western 0-9
if not (cfg.use_identifier_redirects and is_set (options.redirect)) then -- redirect has priority so if enabled and available don't fetch from wikidata because expensive
wd_article = wikidata_article_name_get (options.q); -- if wikidata has an article title for this wiki, get it;
end
local label_link = (cfg.use_identifier_redirects and is_set (options.redirect) and options.redirect) or wd_article or options.link;


return table.concat (
return table.concat (
{
{
make_wikilink (label_link, options.label), -- wiki link the identifier label
make_wikilink (options.link, options.label),
options.separator or '&nbsp;', -- add the separator
options.separator or '&nbsp;',
make_wikilink (
make_wikilink (
table.concat (
table.concat (
{
{
options.prefix,
options.prefix,
id, -- translated to western digits
options.id,
options.suffix or ''
options.suffix or ''
}),
}),
substitute (cfg.presentation['bdi'], {'', mw.text.nowiki (options.id)}) -- bdi tags to prevent Latn script identifiers from being reversed at rtl language wikis
mw.text.nowiki (options.id)
); -- nowiki because MediaWiki still has magic links for ISBN and the like; TODO: is it really required?
);
});
});
end
end
Line 136: Line 101:
end
end
return ''; -- |embargo= not set return empty string
return ''; -- |embargo= not set return empty string
end
--[=[-------------------------< I S _ V A L I D _ B I O R X I V _ D A T E >------------------------------------
returns true if:
2019-12-11T00:00Z <= biorxiv_date < today + 2 days
The dated form of biorxiv identifier has a start date of 2019-12-11.  The unix timestamp for that date is {{#time:U|2019-12-11}} = 1576022400
biorxiv_date is the date provided in those |biorxiv= parameter values that are dated at time 00:00:00 UTC
today is the current date at time 00:00:00 UTC plus 48 hours
if today is 2015-01-01T00:00:00 then
adding 24 hours gives 2015-01-02T00:00:00 – one second more than today
adding 24 hours gives 2015-01-03T00:00:00 – one second more than tomorrow
This function does not work if it is fed month names for languages other than English.  Wikimedia #time: parser
apparently doesn't understand non-Engish date month names. This function will always return false when the date
contains a non-English month name because good1 is false after the call to lang.formatDate().  To get around that
call this function with YYYY-MM-DD format dates.
]=]
local function is_valid_biorxiv_date (biorxiv_date)
local good1, good2;
local biorxiv_ts, tomorrow_ts; -- to hold unix time stamps representing the dates
local lang_object = mw.getContentLanguage();
good1, biorxiv_ts = pcall (lang_object.formatDate, lang_object, 'U', biorxiv_date ); -- convert biorxiv_date value to unix timesatmp
good2, tomorrow_ts = pcall (lang_object.formatDate, lang_object, 'U', 'today + 2 days' ); -- today midnight + 2 days is one second more than all day tomorrow
if good1 and good2 then -- lang.formatDate() returns a timestamp in the local script which which tonumber() may not understand
biorxiv_ts = tonumber (biorxiv_ts) or lang_object:parseFormattedNumber (biorxiv_ts); -- convert to numbers for the comparison;
tomorrow_ts = tonumber (tomorrow_ts) or lang_object:parseFormattedNumber (tomorrow_ts);
else
return false; -- one or both failed to convert to unix time stamp
end
return ((1576022400 <= biorxiv_ts) and (biorxiv_ts < tomorrow_ts)) -- 2012-12-11T00:00Z <= biorxiv_date < tomorrow's date
end
end


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local function is_valid_isxn (isxn_str, len)
local function is_valid_isxn (isxn_str, len)
local temp = 0;
local temp = 0;
isxn_str = { isxn_str:byte(1, len) }; -- make a table of byte values '0' → 0x30 .. '9' → 0x39, 'X' → 0x58
isxn_str = { isxn_str:byte(1, len) }; -- make a table of byte values '0' → 0x30 .. '9' → 0x39, 'X' → 0x58
len = len+1; -- adjust to be a loop counter
len = len+1; -- adjust to be a loop counter
for i, v in ipairs( isxn_str ) do -- loop through all of the bytes and calculate the checksum
for i, v in ipairs( isxn_str ) do -- loop through all of the bytes and calculate the checksum
if v == string.byte( "X" ) then -- if checkdigit is X (compares the byte value of 'X' which is 0x58)
if v == string.byte( "X" ) then -- if checkdigit is X (compares the byte value of 'X' which is 0x58)
temp = temp + 10*( len - i ); -- it represents 10 decimal
temp = temp + 10*( len - i ); -- it represents 10 decimal
else
else
temp = temp + tonumber( string.char(v) )*(len-i);
temp = temp + tonumber( string.char(v) )*(len-i);
end
end
end
end
return temp % 11 == 0; -- returns true if calculation result is zero
return temp % 11 == 0; -- returns true if calculation result is zero
end
end


Line 324: Line 250:
err_cat = err_cat and table.concat ({' ', set_error ('bad_arxiv')}) or ''; -- set error message if flag is true
err_cat = err_cat and table.concat ({' ', set_error ('bad_arxiv')}) or ''; -- set error message if flag is true
text = external_link_id ({link=handler.link, label=handler.label, q=handler.q, redirect=handler.redirect,
text = external_link_id({link = handler.link, label = handler.label, q = handler.q,
prefix=handler.prefix,id=id,separator=handler.separator, encode=handler.encode, access=handler.access}) .. err_cat;
prefix=handler.prefix,id=id,separator=handler.separator, encode=handler.encode, access=handler.access}) .. err_cat;


Line 351: Line 277:
1–4 must be digits and must represent a year in the range of 1000 – next year
1–4 must be digits and must represent a year in the range of 1000 – next year
5 must be a letter
5 must be a letter
6–8 must be letter, digit, ampersand, or dot (ampersand cannot directly precede a dot; &. )
6 must be letter, ampersand, or dot (ampersand cannot directly precede a dot; &. )
7–8 must be letter, digit, ampersand, or dot (ampersand cannot directly precede a dot; &. )
9–18 must be letter, digit, or dot
9–18 must be letter, digit, or dot
19 must be a letter or dot
19 must be a letter or dot
Line 362: Line 289:
local year;
local year;


local text = external_link_id ({link=handler.link, label=handler.label, q=handler.q, redirect=handler.redirect,
local text = external_link_id({link=handler.link, label=handler.label, q = handler.q,
prefix=handler.prefix, id=id, separator=handler.separator, encode=handler.encode,
prefix=handler.prefix, id=id, separator=handler.separator, encode=handler.encode,
access=access});
access=access});
if 19 ~= id:len() then
if 19 ~= id:len() then
err_type = cfg.err_msg_supl.length;
err_type = 'length';
else
else
year = id:match ("^(%d%d%d%d)[%a][%w&%.][%w&%.][%w&%.][%w.]+[%a%.]$") --  
year = id:match ("^(%d%d%d%d)[%a][%a&%.][%a&%.%d][%a&%.%d][%a%d%.]+[%a%.]$") --  
if not year then -- if nil then no pattern match
if not year then -- if nil then no pattern match
err_type = cfg.err_msg_supl.value; -- so value error
err_type = 'value'; -- so value error
else
else
local next_year = tonumber(os.date ('%Y'))+1; -- get the current year as a number and add one for next year
local next_year = tonumber(os.date ('%Y'))+1; -- get the current year as a number and add one for next year
year = tonumber (year); -- convert year portion of bibcode to a number
year = tonumber (year); -- convert year portion of bibcode to a number
if (1000 > year) or (year > next_year) then
if (1000 > year) or (year > next_year) then
err_type = cfg.err_msg_supl.year; -- year out of bounds
err_type = 'year'; -- year out of bounds
end
end
if id:find('&%.') then
if id:find('&%.') then
err_type = cfg.err_msg_supl.journal; -- journal abbreviation must not have '&.' (if it does its missing a letter)
err_type = 'journal'; -- journal abbreviation must not have '&.' (if it does its missing a letter)
end
end
end
end
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--[[--------------------------< B I O R X I V >-----------------------------------------------------------------
--[[--------------------------< B I O R X I V >-----------------------------------------------------------------


Format bioRxiv id and do simple error checking.  Before 2019-12-11, biorXiv ids were 10.1101/ followed by exactly
Format bioRxiv id and do simple error checking.  BiorXiv ids are exactly 6 digits.
6 digits.  After 2019-12-11, biorXiv ids retained the six-digit identifier but prefixed that with a yyyy.mm.dd.
The bioRxiv id is the number following the last slash in the bioRxiv-issued DOI:
date and suffixed with an optional version identifier.
https://doi.org/10.1101/078733 -> 078733
 
The bioRxiv id is the string of characters:
https://doi.org/10.1101/078733 -> 10.1101/078733
or a date followed by a six-digit number followed by an optional version indicator 'v' and one or more digits:
https://www.biorxiv.org/content/10.1101/2019.12.11.123456v2 -> 10.1101/2019.12.11.123456v2
see https://www.biorxiv.org/about-biorxiv


]]
]]
Line 408: Line 328:
local function biorxiv(id)
local function biorxiv(id)
local handler = cfg.id_handlers['BIORXIV'];
local handler = cfg.id_handlers['BIORXIV'];
local err_cat = true; -- flag; assume that there will be an error
local err_cat = ''; -- presume that bioRxiv id is valid
local patterns = {
if nil == id:match("^%d%d%d%d%d%d$") then -- if bioRxiv id has anything but six digits
'^10.1101/%d%d%d%d%d%d$', -- simple 6-digit identifier (before 2019-12-11)
err_cat = ' ' .. set_error( 'bad_biorxiv'); -- set an error message
'^10.1101/(20[1-9]%d)%.([01]%d)%.([0-3]%d)%.%d%d%d%d%d%dv%d+$', -- y.m.d. date + 6-digit identifier + version (after 2019-12-11)
end
'^10.1101/(20[1-9]%d)%.([01]%d)%.([0-3]%d)%.%d%d%d%d%d%d$', -- y.m.d. date + 6-digit identifier (after 2019-12-11)
}
for _, pattern in ipairs (patterns) do -- spin through the patterns looking for a match
return external_link_id({link = handler.link, label = handler.label, q = handler.q,
if id:match (pattern) then
local y, m, d = id:match (pattern); -- found a match, attempt to get year, month and date from the identifier
 
if m then -- m is nil when id is the six-digit form
if not is_valid_biorxiv_date (y .. '-' .. m .. '-' .. d) then -- validate the encoded date; TODO: don't ignore leapyear and actual month lengths ({{#time:}} is a poor date validator)
break; -- date fail; break out early so we don't unset the error message
end
end
err_cat = nil; -- we found a match so unset the error message
break; -- and done
end
end -- err_cat remains set here when no match
 
return external_link_id ({link=handler.link, label=handler.label, q=handler.q, redirect=handler.redirect,
prefix=handler.prefix,id=id,separator=handler.separator,
prefix=handler.prefix,id=id,separator=handler.separator,
encode=handler.encode, access=handler.access}) .. (err_cat and (' ' .. set_error( 'bad_biorxiv')) or '');
encode=handler.encode, access=handler.access}) .. err_cat;
end
end


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local matched;
local matched;
local text = external_link_id ({link=handler.link, label=handler.label, q=handler.q, redirect=handler.redirect,
local text = external_link_id({link=handler.link, label=handler.label, q = handler.q,
prefix=handler.prefix, id=id, separator=handler.separator, encode=handler.encode,
prefix=handler.prefix, id=id, separator=handler.separator, encode=handler.encode,
access=handler.access});
access=handler.access});
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if is_set(inactive) then
if is_set(inactive) then
local inactive_year = inactive:match("%d%d%d%d") or ''; -- try to get the year portion from the inactive date
local inactive_year = inactive:match("%d%d%d%d") or ''; -- try to get the year portion from the inactive date
local inactive_month, good;
if is_set(inactive_year) then
 
table.insert( z.error_categories, "Pages with DOIs inactive since " .. inactive_year );
if is_set (inactive_year) then
if 4 < inactive:len() then -- inactive date has more than just a year (could be anything)
local lang_obj = mw.getContentLanguage(); -- get a language object for this wiki
good, inactive_month = pcall (lang_obj.formatDate, lang_obj, 'F', inactive); -- try to get the month name from the inactive date
if not good then
inactive_month = nil; -- something went wrong so make sure this is unset
end
end
else
inactive_year = nil; -- |doi-broken= has something but it isn't a date
end
if is_set(inactive_year) and is_set (inactive_month) then
table.insert( z.error_categories, 'Pages with DOIs inactive as of ' .. inactive_year .. ' ' .. inactive_month); -- use inactive month in category name
elseif is_set(inactive_year) then
table.insert( z.error_categories, 'Pages with DOIs inactive as of ' .. inactive_year);
else
else
table.insert( z.error_categories, 'Pages with inactive DOIs'); -- when inactive doesn't contain a recognizable date
table.insert( z.error_categories, "Pages with inactive DOIs" ); -- when inactive doesn't contain a recognizable year
end
end
inactive = " (" .. cfg.messages['inactive'] .. ' ' .. inactive .. ')';
inactive = " (" .. cfg.messages['inactive'] .. " " .. inactive .. ")"
end
end
 
text = external_link_id({link = handler.link, label = handler.label, q = handler.q,
text = external_link_id ({link=handler.link, label=handler.label, q=handler.q, redirect=handler.redirect,
prefix=handler.prefix,id=id,separator=handler.separator, encode=handler.encode, access=access}) .. (inactive or '')
prefix=handler.prefix,id=id,separator=handler.separator, encode=handler.encode, access=access}) .. (inactive or '')


local registrant = id:match ('^10%.([^/]+)/[^%s–]-[^%.,]$'); -- registrant set when doi has the proper basic form
if nil == id:match("^10%.[^%s–]-/[^%s–]-[^%.,]$") then -- doi must begin with '10.', must contain a fwd slash, must not contain spaces or endashes, and must not end with period or comma
cat = ' ' .. set_error( 'bad_doi' );
registrant_err_patterns = { -- these patterns are for code ranges that are not supported
'^[^1-3]%d%d%d%d%.%d%d*$', -- 5 digits with subcode (0xxxx, 40000+); accecpts: 10000–39999
'^[^1-3]%d%d%d%d$', -- 5 digits without subcode (0xxxx, 40000+); accecpts: 10000–39999
'^[^1-9]%d%d%d%.%d%d*$', -- 4 digits with subcode (0xxx); accecpts: 1000–9999
'^[^1-9]%d%d%d$', -- 4 digits without subcode (0xxx); accecpts: 1000–9999
'^%d%d%d%d%d%d+', -- 6 or more digits
'^%d%d?%d?$', -- less than 4 digits without subcode (with subcode is legitimate)
'^5555$', -- test registrant will never resolve
'%s', -- any space character in registrant
}
if registrant then -- when doi has proper form
for i, pattern in ipairs (registrant_err_patterns) do -- spin through error patterns
if registrant:match (pattern) then -- to validate registrant codes
cat = ' ' .. set_error ('bad_doi'); -- when found, mark this doi as bad
break; -- and done
end
end
else
cat = ' ' .. set_error ('bad_doi'); -- invalid directory or malformed
end
end


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terminal punctuation may not be technically correct but it appears, that in practice these characters are rarely
terminal punctuation may not be technically correct but it appears, that in practice these characters are rarely
if ever used in HDLs.
if ever used in HDLs.
Query string parameters are named here: http://www.handle.net/proxy_servlet.html.  query strings are not displayed
but since '?' is anallowed character in an hdl, '?' followed by one of the query parameters is the only way we
have to detect the query string so that it isn't url encoded with the rest of the identifier.


]]
]]
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local function hdl(id, access)
local function hdl(id, access)
local handler = cfg.id_handlers['HDL'];
local handler = cfg.id_handlers['HDL'];
local query_params = { -- list of known query parameters from http://www.handle.net/proxy_servlet.html
'noredirect',
'ignore_aliases',
'auth',
'cert',
'index',
'type',
'urlappend',
'locatt',
'action',
}
local hdl, suffix, param = id:match ('(.-)(%?(%a+).+)$'); -- look for query string
local text = external_link_id({link = handler.link, label = handler.label, q = handler.q,
local found;
prefix=handler.prefix,id=id,separator=handler.separator, encode=handler.encode, access=access})
 
if hdl then -- when there are query strings, this is the handle identifier portion
for _, q in ipairs (query_params) do -- spin through the list of query parameters
if param:match ('^' .. q) then -- if the query string begins with one of the parameters
found = true; -- announce a find
break; -- and stop looking
end
end
end
 
if found then
id = hdl; -- found so replace id with the handle portion; this will be url encoded, suffix will not
else
suffix = ''; -- make sure suffix is empty string for concatenation else
end
 
local text = external_link_id ({link=handler.link, label=handler.label, q=handler.q, redirect=handler.redirect,
prefix=handler.prefix, id=id, suffix=suffix, separator=handler.separator, encode=handler.encode, access=access})


if nil == id:match("^[^%s–]-/[^%s–]-[^%.,]$") then -- hdl must contain a fwd slash, must not contain spaces, endashes, and must not end with period or comma
if nil == id:match("^[^%s–]-/[^%s–]-[^%.,]$") then -- hdl must contain a fwd slash, must not contain spaces, endashes, and must not end with period or comma
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local function isbn( isbn_str )
local function isbn( isbn_str )
if nil ~= isbn_str:match("[^%s-0-9X]") then
if nil ~= isbn_str:match("[^%s-0-9X]") then
return false, cfg.err_msg_supl.char; -- fail if isbn_str contains anything but digits, hyphens, or the uppercase X
return false, 'invalid character'; -- fail if isbn_str contains anything but digits, hyphens, or the uppercase X
end
end
isbn_str = isbn_str:gsub( "-", "" ):gsub( " ", "" ); -- remove hyphens and spaces
isbn_str = isbn_str:gsub( "-", "" ):gsub( " ", "" ); -- remove hyphens and spaces
Line 615: Line 449:
   
   
if len ~= 10 and len ~= 13 then
if len ~= 10 and len ~= 13 then
return false, cfg.err_msg_supl.length; -- fail if incorrect length
return false, 'length'; -- fail if incorrect length
end
end


if len == 10 then
if len == 10 then
if isbn_str:match( "^%d*X?$" ) == nil then -- fail if isbn_str has 'X' anywhere but last position
if isbn_str:match( "^%d*X?$" ) == nil then -- fail if isbn_str has 'X' anywhere but last position
return false, cfg.err_msg_supl.form;
return false, 'invalid form';
end
end
return is_valid_isxn(isbn_str, 10), cfg.err_msg_supl.check;
return is_valid_isxn(isbn_str, 10), 'checksum';
else
else
if isbn_str:match( "^%d+$" ) == nil then
if isbn_str:match( "^%d+$" ) == nil then
return false, cfg.err_msg_supl.char; -- fail if isbn13 is not all digits
return false, 'invalid character'; -- fail if isbn13 is not all digits
end
end
if isbn_str:match( "^97[89]%d*$" ) == nil then
if isbn_str:match( "^97[89]%d*$" ) == nil then
return false, cfg.err_msg_supl.prefix; -- fail when isbn13 does not begin with 978 or 979
return false, 'invalid prefix'; -- fail when isbn13 does not begin with 978 or 979
end
if isbn_str:match ('^9790') then
return false, cfg.err_msg_supl.group; -- group identifier '0' is reserved to ismn
end
end
return is_valid_isxn_13 (isbn_str), cfg.err_msg_supl.check;
return is_valid_isxn_13 (isbn_str), 'checksum';
end
end
end
end
Line 673: Line 504:
end
end
local handler = cfg.id_handlers['ASIN'];
local handler = cfg.id_handlers['ASIN'];
return external_link_id ({link=handler.link, label=handler.label, q=handler.q, redirect=handler.redirect,
return external_link_id({link=handler.link,
prefix=handler.prefix .. domain .. "/dp/",
label=handler.label, q = handler.q, prefix=handler.prefix .. domain .. "/dp/",
id=id, encode=handler.encode, separator = handler.separator}) .. err_cat;
id=id, encode=handler.encode, separator = handler.separator}) .. err_cat;
end
end
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end
end


-- text = internal_link_id ({link=handler.link, label=handler.label, q=handler.q, redirect=handler.redirect, -- use this (or external version) when there is some place to link to
-- text = internal_link_id({link = handler.link, label = handler.label, -- use this (or external version) when there is some place to link to
-- prefix=handler.prefix, id=id_copy, separator=handler.separator, encode=handler.encode})
-- prefix=handler.prefix,id=id,separator=handler.separator, encode=handler.encode})
   
   
text = table.concat (
text = table.concat (
Line 761: Line 592:
end
end
text = external_link_id ({link=handler.link, label=handler.label, q=handler.q, redirect=handler.redirect,
text = external_link_id({link = handler.link, label = handler.label, q = handler.q,
prefix=handler.prefix,id=id,separator=handler.separator, encode=handler.encode})
prefix=handler.prefix,id=id,separator=handler.separator, encode=handler.encode})
 
if false == valid_issn then
if false == valid_issn then
text = text .. ' ' .. set_error( 'bad_issn', e and 'e' or '' ) -- add an error message if the issn is invalid
text = text .. ' ' .. set_error( 'bad_issn', e and 'e' or '' ) -- add an error message if the issn is invalid
Line 797: Line 628:
end
end
return external_link_id ({link=handler.link, label=handler.label, q=handler.q, redirect=handler.redirect,
return external_link_id({link = handler.link, label = handler.label, q = handler.q,
prefix=handler.prefix,id=id,separator=handler.separator, encode=handler.encode}) .. err_cat;
prefix=handler.prefix,id=id,separator=handler.separator, encode=handler.encode}) .. err_cat;
end
end
Line 854: Line 685:
end
end


return external_link_id ({link=handler.link, label=handler.label, q=handler.q, redirect=handler.redirect,
return external_link_id({link = handler.link, label = handler.label, q = handler.q,
prefix=handler.prefix,id=lccn,separator=handler.separator, encode=handler.encode}) .. err_cat;
prefix=handler.prefix,id=lccn,separator=handler.separator, encode=handler.encode}) .. err_cat;
end
end
Line 886: Line 717:
end
end
return external_link_id ({link=handler.link, label=handler.label, q=handler.q, redirect=handler.redirect,
return external_link_id({link = handler.link, label = handler.label, q = handler.q,
prefix=handler.prefix,id=id,separator=handler.separator, encode=handler.encode}) .. err_cat;
prefix=handler.prefix,id=id,separator=handler.separator, encode=handler.encode}) .. err_cat;
end
end
Line 893: Line 724:
--[[--------------------------< O C L C >----------------------------------------------------------------------
--[[--------------------------< O C L C >----------------------------------------------------------------------


Validate and format an oclc id.  https://www.oclc.org/batchload/controlnumber.en.html {{dead link}}
Validate and format an oclc id.  https://www.oclc.org/batchload/controlnumber.en.html
archived at: https://web.archive.org/web/20161228233804/https://www.oclc.org/batchload/controlnumber.en.html


]]
]]
Line 927: Line 757:
end
end
local text = external_link_id ({link=handler.link, label=handler.label, q=handler.q, redirect=handler.redirect,
local text = external_link_id({link=handler.link, label=handler.label, q = handler.q,
prefix=handler.prefix, id=id, separator=handler.separator, encode=handler.encode}) .. err_msg;
prefix=handler.prefix, id=id, separator=handler.separator, encode=handler.encode}) .. err_msg;


Line 948: Line 778:


if not is_set (ident) then -- if malformed return an error
if not is_set (ident) then -- if malformed return an error
return external_link_id ({link=handler.link, label=handler.label, q=handler.q, redirect=handler.redirect,
return external_link_id({link=handler.link, label=handler.label, q = handler.q,
prefix=handler.prefix .. 'OL',
prefix=handler.prefix .. 'OL',
id=id, separator=handler.separator, encode = handler.encode,
id=id, separator=handler.separator, encode = handler.encode,
Line 957: Line 787:
if ( code == "A" ) then
if ( code == "A" ) then
return external_link_id ({link=handler.link, label=handler.label, q=handler.q, redirect=handler.redirect,
return external_link_id({link=handler.link, label=handler.label, q = handler.q,
prefix=handler.prefix .. 'authors/OL',
prefix=handler.prefix .. 'authors/OL',
id=id, separator=handler.separator, encode = handler.encode,
id=id, separator=handler.separator, encode = handler.encode,
Line 964: Line 794:
if ( code == "M" ) then
if ( code == "M" ) then
return external_link_id ({link=handler.link, label=handler.label, q=handler.q, redirect=handler.redirect,
return external_link_id({link=handler.link, label=handler.label, q = handler.q,
prefix=handler.prefix .. 'books/OL',
prefix=handler.prefix .. 'books/OL',
id=id, separator=handler.separator, encode = handler.encode,
id=id, separator=handler.separator, encode = handler.encode,
Line 971: Line 801:


if ( code == "W" ) then
if ( code == "W" ) then
return external_link_id ({link=handler.link, label=handler.label, q=handler.q, redirect=handler.redirect,
return external_link_id({link=handler.link, label=handler.label, q = handler.q,
prefix=handler.prefix .. 'works/OL',
prefix=handler.prefix .. 'works/OL',
id=id, separator=handler.separator, encode = handler.encode,
id=id, separator=handler.separator, encode = handler.encode,
Line 997: Line 827:


local function pmc(id, embargo)
local function pmc(id, embargo)
local test_limit = cfg.id_limits.pmc; -- update this value as PMCs approach
local test_limit = 6500000; -- update this value as PMCs approach
local handler = cfg.id_handlers['PMC'];
local handler = cfg.id_handlers['PMC'];
local err_cat = ''; -- presume that PMC is valid
local err_cat = ''; -- presume that PMC is valid
Line 1,031: Line 861:
});
});
else
else
text = external_link_id ({link=handler.link, label=handler.label, q=handler.q, redirect=handler.redirect, -- no embargo date or embargo has expired, ok to link to article
text = external_link_id({link = handler.link, label = handler.label, q = handler.q, -- no embargo date or embargo has expired, ok to link to article
prefix=handler.prefix,id=id,separator=handler.separator, encode=handler.encode, access=handler.access}) .. err_cat;
prefix=handler.prefix,id=id,separator=handler.separator, encode=handler.encode, access=handler.access}) .. err_cat;
end
end
Line 1,047: Line 877:


local function pmid(id)
local function pmid(id)
local test_limit = cfg.id_limits.pmid; -- update this value as PMIDs approach
local test_limit = 32000000; -- update this value as PMIDs approach
local handler = cfg.id_handlers['PMID'];
local handler = cfg.id_handlers['PMID'];
local err_cat = ''; -- presume that PMID is valid
local err_cat = ''; -- presume that PMID is valid
Line 1,060: Line 890:
end
end
return external_link_id ({link=handler.link, label=handler.label, q=handler.q, redirect=handler.redirect,
return external_link_id({link = handler.link, label = handler.label, q = handler.q,
prefix=handler.prefix,id=id,separator=handler.separator, encode=handler.encode}) .. err_cat;
prefix=handler.prefix,id=id,separator=handler.separator, encode=handler.encode}) .. err_cat;
end
--[[--------------------------< S 2 C I D >--------------------------------------------------------------------
Format an s2cid, do simple error checking
S2CIDs are sequential numbers beginning at 1 and counting up.  This code checks the s2cid to see that it is only
digits and is less than test_limit; the value in local variable test_limit will need to be updated periodically
as more S2CIDs are issued.
]]
local function s2cid (id, access)
local test_limit = cfg.id_limits.s2cid; -- update this value as S2CIDs approach
local handler = cfg.id_handlers['S2CID'];
local err_cat = ''; -- presume that S2CID is valid
local id_num;
local text;
id_num = id:match ('^[1-9]%d+$'); -- id must be all digits; must not begin with 0; no open access flag
if is_set (id_num) then -- id_num has a value so test it
id_num = tonumber(id_num); -- convert id_num to a number for range testing
if test_limit < id_num then -- if S2CID is outside test limit boundaries
err_cat = ' ' .. set_error( 'bad_s2cid' ); -- set an error message
end
else -- when id format incorrect
err_cat = ' ' .. set_error( 'bad_s2cid' ); -- set an error message
end
text = external_link_id ({link=handler.link, label=handler.label, q=handler.q, redirect=handler.redirect,
prefix=handler.prefix, id=id:gsub ('%.%a%a', ''), separator=handler.separator, encode=handler.encode, access=access}) .. err_cat;
return text;
end
--[[--------------------------< S B N >------------------------------------------------------------------------
9-digit form of isbn10; uses same check-digit validation when sbn is prefixed with an additional '0' to make 10 digits
]]
local function sbn (id)
local check;
local err_type = '';
if nil ~= id:match("[^%s-0-9X]") then
return false, cfg.err_msg_supl.char; -- fail if sbn contains anything but digits, hyphens, or the uppercase X
end
id=id:gsub( "[%s-]", "" ); -- strip spaces and hyphens from the sbn
if  9 ~= id:len() then
return false, cfg.err_msg_supl.length; -- fail if incorrect length
end
if id:match( "^%d*X?$" ) == nil then -- fail if sbn has 'X' anywhere but last position
return false, cfg.err_msg_supl.form;
end
return is_valid_isxn('0' .. id, 10), cfg.err_msg_supl.check; -- prefix sbn with '0' and validate as isbn10
end
end


Line 1,140: Line 906:


local function ssrn (id)
local function ssrn (id)
local test_limit = cfg.id_limits.ssrn; -- update this value as SSRNs approach
local test_limit = 3500000; -- update this value as SSRNs approach
local handler = cfg.id_handlers['SSRN'];
local handler = cfg.id_handlers['SSRN'];
local err_cat = ''; -- presume that SSRN is valid
local err_cat = ''; -- presume that SSRN is valid
Line 1,157: Line 923:
end
end
text = external_link_id ({link=handler.link, label=handler.label, q=handler.q, redirect=handler.redirect,
text = external_link_id({link = handler.link, label = handler.label, q = handler.q,
prefix=handler.prefix,id=id,separator=handler.separator, encode=handler.encode, access=handler.access}) .. err_cat;
prefix=handler.prefix,id=id,separator=handler.separator, encode=handler.encode, access=handler.access}) .. err_cat;


Line 1,174: Line 940:
local handler = cfg.id_handlers['USENETID'];
local handler = cfg.id_handlers['USENETID'];


local text = external_link_id ({link=handler.link, label=handler.label, q=handler.q, redirect=handler.redirect,
local text = external_link_id({link = handler.link, label = handler.label, q = handler.q,
prefix=handler.prefix,id=id,separator=handler.separator, encode=handler.encode})
prefix=handler.prefix,id=id,separator=handler.separator, encode=handler.encode})
   
   
Line 1,188: Line 954:


A numerical identifier in the form nnnn.nnnnn - leading zeros in the first quartet optional
A numerical identifier in the form nnnn.nnnnn - leading zeros in the first quartet optional
format described here: http://emis.mi.sanu.ac.rs/ZMATH/zmath/en/help/search/
temporary format is apparently eight digits.  Anything else is an error


]]
]]
Line 1,197: Line 959:
local function zbl (id)
local function zbl (id)
local handler = cfg.id_handlers['ZBL'];
local handler = cfg.id_handlers['ZBL'];
local id_num;
local err_cat = '';
local err_cat = '';
if id:match('^%d%d%d%d%d%d%d%d$') then -- is this identifier using temporary format?
id_num = id:match ('^[Zz][Bb][Ll](.*)$'); -- identifier with zbl prefix; extract identifier
add_maint_cat ('zbl'); -- yes, add maint cat
 
elseif not id:match('^%d?%d?%d?%d%.%d%d%d%d%d$') then -- not temporary, is it normal format?
if is_set (id_num) then
err_cat = ' ' .. set_error( 'bad_zbl' ); -- no, set an error message
add_maint_cat ('zbl_format');
else -- plain number without zbl prefix
id_num = id; -- if here id does not have prefix
end
 
if id_num:match('^%d?%d?%d?%d%.%d%d%d%d%d$') then
id = id_num; -- id matches pattern
else
err_cat = ' ' .. set_error( 'bad_zbl' ); -- set an error message
end
end
return external_link_id ({link=handler.link, label=handler.label, q=handler.q, redirect=handler.redirect,
return external_link_id({link = handler.link, label = handler.label, q = handler.q,
prefix=handler.prefix,id=id,separator=handler.separator, encode=handler.encode}) .. err_cat;
prefix=handler.prefix,id=id,separator=handler.separator, encode=handler.encode}) .. err_cat;
end
end
Line 1,286: Line 1,057:
elseif k == 'PMID' then
elseif k == 'PMID' then
table.insert( new_list, {handler.label, pmid( v ) } );
table.insert( new_list, {handler.label, pmid( v ) } );
elseif k == 'S2CID' then
table.insert( new_list, {handler.label, s2cid( v, handler.access ) } );
elseif k == 'SBN' then
local SBN = internal_link_id (handler);
local check; -- boolean validation result
local err_type = '';
check, err_type = sbn (v);
if not check then
SBN = SBN .. set_error( 'bad_sbn', {err_type}, false, " ", "" ); -- display an error message
end
table.insert( new_list, {handler.label, SBN } );
elseif k == 'SSRN' then
elseif k == 'SSRN' then
table.insert( new_list, {handler.label, ssrn( v ) } );
table.insert( new_list, {handler.label, ssrn( v ) } );
Line 1,344: Line 1,104:
Parameters which have a predefined access level (e.g. arxiv) do not use this
Parameters which have a predefined access level (e.g. arxiv) do not use this
function as they are directly rendered as free without using an additional parameter.
function as they are directly rendered as free without using an additional parameter.
access-level values must match the case used in cfg.keywords_lists['id-access'] (lowercase unless there is some special reason for something else)


]]
]]
Line 1,352: Line 1,110:
local id_accesses_list = {};
local id_accesses_list = {};
for k, v in pairs( cfg.id_handlers ) do
for k, v in pairs( cfg.id_handlers ) do
local access_param = v.custom_access; -- name of identifier's access-level parameter
local access_param = v.custom_access;
local k_lower = string.lower(k);
if is_set(access_param) then
if is_set(access_param) then
local access_level = args[access_param]; -- get the assigned value if there is one
local access_level = args[access_param];
if is_set (access_level) then
if is_set(access_level) then
if not in_array (access_level, cfg.keywords_lists['id-access']) then -- exact match required
if not in_array (access_level:lower(), cfg.keywords['id-access']) then
table.insert( z.message_tail, { set_error( 'invalid_param_val', {access_param, access_level}, true ) } );
table.insert( z.message_tail, { set_error( 'invalid_param_val', {access_param, access_level}, true ) } );
access_level = nil; -- invalid so unset
access_level = nil;
end
end
if not is_set(id_list[k]) then -- identifer access-level must have a matching identifier
if not is_set(id_list[k]) then
table.insert( z.message_tail, { set_error( 'param_access_requires_param', {k:lower()}, true ) } ); -- param name is uppercase in cfg.id_handlers (k); lowercase for error message
table.insert( z.message_tail, { set_error( 'param_access_requires_param', {k_lower}, true ) } );
end
end
id_accesses_list[k] = cfg.keywords_xlate[access_level]; -- get translated keyword
if is_set(access_level) then
access_level = access_level:lower();
end
id_accesses_list[k] = access_level;
end
end
end
end
Line 1,391: Line 1,153:
end
end


--[[--------------------------< E X P O R T E D  F U N C T I O N S >------------------------------------------
]]


return {
return {
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