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وحدة:Gazette util
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توثيق الوحدة [أنشئ] [محو الاختزان][استخدامات] [قوالب]-- this module is created to support {{London Gazette}}
require('Module:No globals')
local getArgs = require('Module:Arguments').getArgs
local span_open = '<span style="font-size:100%; font-weight:normal" class="error">';
local code_open = '<code style="color:inherit; border:inherit; padding:inherit;">';
local help_link = ' ([[Template:London Gazette#Error messages|help]])';
local supp_error = mw.ustring.format ('%sinvalid %s|supp=</code>%s</span>', span_open, code_open, help_link);
local duplicate_page_error = mw.ustring.format (' %smore than one of %s|page=</code> and %s|pages=</code>%s</span>', span_open, code_open, code_open, help_link);
local p = {}
--[[--------------------------< I S _ S E T >------------------------------------------------------------------
Whether variable is set or not. A variable is set when it is not nil and not empty.
]]
local function is_set( var )
return not (var == nil or var == '');
end
--[[--------------------------< O R D I N A L _ S U F F I X >--------------------------------------------------
render a numerical text string in ordinal form suitable for English language use. In this module, num_str is
limited by calling functions to the integer values 1-99. The argument num_str must be known to be set before
this function is called.
]]
local function ordinal_suffix (num_str)
local lsd; -- least significant digit
local suffixes = {['1'] = 'st', ['2'] = 'nd', ['3'] = 'rd'}; -- table of suffixes except 'th'
if num_str:match ('^1[1-3]$') then -- check the 11-13 odd balls first to get them out of the way
return num_str .. 'th'; -- 11th, 12th, 13th
end
lsd = num_str:match ('^%d?(%d)$'); -- all other numbers: get the least significant digit
return num_str .. (suffixes[lsd] or 'th'); -- append the suffix from the suffixes table or default to 'th'
end
--[[--------------------------< M A K E _ P A G E _ P A R A M >------------------------------------------------
Determine the value to be assigned to the specified cs1|2 |page= or |pages= parameter in {{London Gazette}}.
The arguments |param=page and |param=pages specify which of the cs1|2 parameters |page= or |pages= for which this
function is to create a value.
This function inspects the content of the |page= and |pages= parameters, along with the |param= specifier. From
this information it creates a value appropriate for the specified |page= or |pages= parameter. Only one will
have a value, the other will get an empty string.
This function is called twice from {{London Gazette}}; once for each of cs1 |page= and |pages= parameters:
|page={{#invoke:Gazette util|make_page_param|param=page|page={{{page|}}}|pages={{{pages|}}}}}
|pages={{#invoke:Gazette util|make_page_param|param=pages|page={{{page|}}}|pages={{{pages|}}}}}
except for the lvalue and the rvalue assigned to |param=, the two calls must be identical else odd results.
|page= or |pages= without a comma, hyphen, or en dash separator → cs1 |page=
|page= or |pages= with a separator → cs1 |pages=
Hyphen separator characters are converted to en dash characters. Any white space around hyphen and en dash
separators is removed.
If both |page= and |pages= are set, this function mimics cs1|2 and chooses |page=.
Another function, page_error() is required for error messaging because we don't want to dump css markup into a
parameter value that will be included in the cs1|2 metadata.
]]
function p.make_page_param (frame)
local args = getArgs(frame);
local page_or_pages;
page_or_pages = args.page or args.unnamed or args.pages; -- only one; prefer |page=
if is_set (page_or_pages) then
if 'pages' == args.param then
if page_or_pages:match ('[,%-–]') then -- only for |pages= parameter
page_or_pages = mw.ustring.gsub (page_or_pages, '%s*[%-–]%s*', '–'); -- hyphen to en dash; remove spaces
return page_or_pages; -- has separator character so make the parameter |pages=
else
return ''; -- no separator so value will be assigned to |page=
end
elseif 'page' == args.param then
if page_or_pages:match ('[,%-–]') then -- only for |pages= parameter
return ''; -- has separator so value will be assigned to |pages=
else
return page_or_pages; -- no separator character so make the parameter |page=
end
else
return ''; -- |param= something else
end
end
return ''; -- if here no pagination or not correct |page= or |pages= parameter
end
--[[--------------------------< P A G E _ E R R O R >----------------------------------------------------------
Inspect page number parameters and return an error message that will be appended to the end of the {{cite magazine}}
template rendering. Error messages are handled this way so that the error message is not made part of the cs1|2
citation's metadata.
{{#invoke:Gazette util|page_error|page={{{page|}}}|pages={{{pages|}}}}}
]]
function p.page_error (frame)
local args = getArgs(frame);
if is_set (args.page) and is_set (args.pages) then
return duplicate_page_error; -- both of |page= and |pages= are set
else
return '';
end
end
--[[--------------------------< T Y P E _ P A R A M >----------------------------------------------------------
set the value that is assigned to the cite magazine |type= parameter using the values of the London Gazette
|supp= and |display-supp= parameters
Only limited |supp= values will set the type value. These are: 'y' or a number 1-99.
row numbers in comments apply to the table in Template_talk:London_Gazette#Rewrite_as_wrapper_around_template:cite_news
]]
function p.type_param (frame)
local args = getArgs(frame);
if not is_set (args['display-supp']) and not is_set (args.supp) then -- when both |display-supp= and |supp= are not set
return ''; -- [row 1] not a supplement so no display
end
args.supp = args.supp and args.supp:lower(); -- make text values lower case
if not is_set (args['display-supp']) and is_set (args.supp) then -- when only |supp= is set
if 'y' == args.supp then
return 'Supplement'; -- [row 2] the first or only supplement
elseif args.supp:match ('^%d%d?$') then -- one or two digits
return ordinal_suffix (args.supp) .. ' supplement'; -- [row 3] for the 1st-99th supplement
else
return supp_error; -- [row 4] any other text not supported show an error message
end
end
if is_set (args['display-supp']) and not is_set (args.supp) then -- when only |display-supp= is set
if args['display-supp']:match ('^%d%d?$') then -- one or two digits
return ordinal_suffix (args['display-supp']) .. ' supplement'; -- [row 7] for the 1st-99th supplement
elseif 'y' == args['display-supp'] then
return 'Supplement'; -- [row 6] unnumbered supplement in /page/ space
else
return args['display-supp']; -- [row 11] user specified text; supplement is not in supplement space (a Gazette website error)
end
end
-- here when both |display-supp= and |supp= are set
if args['display-supp']:match ('^%d%d?$') then -- supplement number
if 'y' == args.supp or (args['display-supp'] == args.supp) then
return ordinal_suffix (args['display-supp']) .. ' supplement'; -- [rows 8, 9]
else -- |supp= is not a number or number isn't same as number in |display-supp=
return supp_error; -- [row 10] different values are ambiguous
end
else -- not a supplement number
if ('y' == args.supp) and ('none' == args['display-supp']) then
return ''; -- [row 5] for the case when a /page/ is in /supplement/ space
elseif ('y' == args.supp) or args.supp:match ('^%d%d?$') or not is_set (args.supp) then
return args['display-supp']; -- [rows 12, 13] user specified text
else
return supp_error; -- [row 14] any other |supp= value not supported show an error message
end
end
end
--[[--------------------------< U R L _ C I T Y >--------------------------------------------------------------
sets the city element of the url path according to |city= value; defaults to London
]]
local function url_city (city_param)
local city_names = {['b'] = 'Belfast', ['belfast'] = 'Belfast', ['e'] = 'Edinburgh', ['edinburgh'] = 'Edinburgh'};
city_param = city_param and city_param:lower(); -- lower() to index into the city_names table
return city_names[city_param] or 'London'; -- the city, or default to London
end
--[[--------------------------< U R L _ P A G E >--------------------------------------------------------------
sets the page number element of the url path according to |page= or |pages=, and the value assigned to |supp=
parameter. This function assumes that supplements may have page numbering that are digits prefixed with one or
two letters: B1, B41, RH2, etc; also assumes that regular issues have digit-only page numbers.
Only limited |supp= values will set the page number path element. These are: 'y' or a number 1-99.
]]
local function url_page (page, supp)
if is_set (supp) then
if ('y' == supp) or supp:match ('^%d%d?$') then
page = page:match ('^%a?%a?%d+'); -- one or two letters followed by digits or just digits (supplement to issue 61608)
else
page = page:match ('^%d+'); -- |supp= set to an unexpected value, so one or more digits only
end
else
page = page:match ('^%d+'); -- |supp= not set, so one or more digits only
end
return page or ''; -- at minimum return empty string for concatenation
end
--[[--------------------------< U R L _ P A G E _ O R _ S U P P L E M E N T >----------------------------------
sets the page/supplement element of the url path according to |supp= value; defaults to page
Only limited |supp= values will set the page/supplement path element to /supplement/. These are: 'y' or a number 1-99
]]
local function url_page_or_supplement (supp_param)
supp_param = (supp_param and supp_param:lower()) or ''; --make sure lower case for comparisons
if ('y' == supp_param) or supp_param:match ('^%d%d?$') then
return 'supplement';
else
return 'page'; -- anything else
end
end
--[[--------------------------< U R L _ P A R A M >------------------------------------------------------------
Build a url given |city=, |issue=, |supp=, and one of |page= or |pages=; result is assigned to |url=
|url={{#invoke:Gazette util|url_param|city={{{city|}}}|issue={{{issue}}}|supp={{{supp|}}}|page={{{page|}}}|pages={{{pages|}}}}}
]]
function p.url_param (frame)
local args = getArgs(frame);
local pg = args.page or args.pages or ''; -- first set parameter or empty string
local url_table = { -- a table of the various url parts
'https://www.thegazette.co.uk', -- static domain name
url_city (args.city), -- default to London
'issue', -- static path text
args.issue, -- issue number
url_page_or_supplement (args.supp), -- either of /page/ or /supplement/ according to the state of |supp=
url_page (pg, args.supp) -- pages: digits only; supplements: optional letter followed by 1 or more digits
};
return table.concat (url_table, '/'); -- concatenate all of the parts together and done
end
return p;