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Nordic Larp Wiki>Trappist the monk at 14:19, 9 January 2025

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require('strict');

local getArgs = require ('Module:Arguments').getArgs;
local unicode = require ("Module:Unicode data"); -- for is_latin()
local lang = require ('Module:Lang');

local namespace = mw.title.getCurrentTitle().namespace; -- used for categorization

local err_texts = { -- because wrapper templates have Latn/non-Latn text ordered according to the wrapper template's name
['lang-sh-cyrl-latn'] = true, -- this template has |1=cyrl script |2=latn script
}

--[[--------------------------< E R R O R _ M S G _ M A K E >--------------------------------------------------

assembles an error message from template name, message text, help link, and error category.
{{', template, '}}
]]

local function error_msg_make (msg, template, nocat)
local out = {};
local category = 'Lang and lang-xx';

table.insert (out, table.concat ({'Error: {{', template, '}}: '}));
table.insert (out, msg);
table.insert (out, table.concat ({' ([[Template:', template, '#Error messages|help]])'}));
table.insert (out, '');

if (0 == namespace or 10 == namespace) and not nocat then -- categorize in article space (and template space to take care of broken usages)
table.insert (out, table.concat ({'[[Category:Lang and lang-xx template errors]]'}));
end

return table.concat (out);
end

--[[--------------------------< S E P A R A T O R _ G E T >----------------------------------------------------

allowed separators are comma, semicolon, virgule, or a quoted string of text

]]

local function separator_get (sep_param_val)
if not sep_param_val then return ', ' end; -- not specified, use default
if ',' == sep_param_val then return ', ' end;
if ';' == sep_param_val then return '; ' end;
if '/' == sep_param_val then return '/' end;
local str;
if sep_param_val:match ('^%b\"\"$') then -- if quoted string and uses double quotes
str = sep_param_val:match ('%b\"\"'):gsub ('^"', ''):gsub ('"$', '');
return str; -- return the contents of the quote
elseif sep_param_val:match ('^%b\'\'$') then -- if quoted string and uses single quotes
str = sep_param_val:match ('%b\'\''):gsub ('^\'', ''):gsub ('\'$', '');
return str; -- return the contents of the quote
end
return ', '; -- default in case can't extract quoted string
end

--[[--------------------------------------------------------------------------------

Selects the appropriate enumerated parameters for <text1> or <text2> according to <swap>

<args_t> - arguments table from frame
<lang_args_t> - arguments table to be supplied to _lang() (whichever text renders second)
<lang_xx_args_t> - arguments table to be supplied to _lang_xx_inherit() or _lang_xx_italic() (whichever text renders first)

]]

local function param_select (args_t, lang_args_t, lang_xx_args_t, swap)
local enum_xx = swap and '2' or '1';
local enum = swap and '1' or '2';

lang_xx_args_t.script = args_t['script' .. enum_xx]; -- these for <textn> that renders first (uses {{lang-xx}})
lang_xx_args_t.region = args_t['region' .. enum_xx];
lang_xx_args_t.variant = args_t['variant' .. enum_xx];
lang_xx_args_t.italic = args_t['italic' .. enum_xx];
lang_xx_args_t.size = args_t['size' .. enum_xx];

lang_args_t.italic = args_t['italic' .. enum]; -- these for <textn> that renders second (uses {{lang}})
lang_args_t.size = args_t['size' .. enum];
end

--[[------------------------------------------------------------------------------

make ietf tag for _lang() (second rendered <textn>)

]]

local function ietf_tag_make (args_t, tag, swap)
local ietf_tag_t = {tag}; -- initialize with <tag>
local enum = swap and '1' or '2'; -- when <swap> is true latin <text1> is rendered second by _lang()

for _, param in ipairs ({'script'..enum, 'region'..enum, 'variant'..enum}) do
if args_t[param] then table.insert (ietf_tag_t, args_t[param]) end -- build <ietf_tag> from <enum>erated subtags
end

return table.concat (ietf_tag_t, '-'); -- concatenate subtags with hyphen separator and done
end

--[[--------------------------< _ L A N G _ X 2 >--------------------------------------------------------------

mimics {{lang|<tag>|<text1>|<text2>}} except that <text2> is not a romanization of <text1> (which is always the
Latin-script form). Intended for languages where two scripts are 'official' or 'native and equal in status' (sh
is and sr may be a candidate for this; are there others?)

{{lang_x2|<tag>|<text1>|<text2>|swap=yes|script2=<script>|separator=[,|;|/|<quoted string>]}}

<tag> - (required) language tag for both of <text1> and <text2>
<text1> - (required) Latin-script text (always)
<text2> - (required) non-Latin-script text (always)
|swap= - when set to 'yes', swaps the rendered order so that <text2> renders first followed by <text1>; default is Latin-script <text1> first
|separator = when single character ,;/ uses ', ' (default), '; ', '/'; when quoted string (first and last characters must be matching single or double quotes) uses that string

parameters supported by both of {{lang}} and {{lang-??}} templates are passed along:
|cat=
|nocat=

parameters supported only by {{lang-??}} that are not enumerated:
|label=
|link=

enumerated parameters:
|script1= - ISO 15924 script tag for <text1> -- when <text1> renders first, these are passed to _lang_xx_...() individually
|region1= - ISO 3166 region tag for <text1> -- when <text1> renders second, these are combined with <tag> to make an IETF tag for _lang()
|variant1= - IETF tag for <text1>

|script2= - ISO 15924 script tag for <text2> -- when <text2> renders first, these are passed to _lang_xx_...() individually
|region2= - ISO 3166 region tag for <text2> -- when <text2> renders second, these are combined with <tag> to make an IETF tag for _lang()
|variant2= - IETF tag for <text2>

|italic1=
|size1=

|italic2=
|size2=

this function calls:
Module:Lang functions
_lang_xx_inherit - when non-Latin <text2> renders first
_lang_xx_italic - when Latin <text1> renders first
_lang - to render <text2>
Module:Unicode data function:
is_Latin - error checking to make sure that <text1> is Latin-script text

]]

local function _lang_x2 (args_t)
local tag = args_t.tag or args_t[1];
local text1 = args_t.text1 or args_t[2];
local text2 = args_t.text2 or args_t[3];
local translation = args_t.translation or args_t[4];
local template_name = args_t.template_name or 'lang-x2';
local nocat = ('yes' == args_t.nocat) or ('no' == args_t.cat); -- boolean

if not (tag and text1 and text2) then
return error_msg_make ('missing a required argument', template_name, nocat);
end
if tag:find ('-', 1, true) then
return error_msg_make ('invalid language tag: ' .. tag .. '; IETF format not supported', template_name, nocat);
end
local is_latn, pos = unicode.is_Latin (text1);
if not is_latn then
return error_msg_make ('<' .. ((err_texts[template_name:lower()] and 'text2') or 'text1') .. '> is not Latin script (pos ' .. pos .. ')', template_name, nocat);
end
is_latn, pos = unicode.is_Latin (text2);
if is_latn then
return error_msg_make ('<' .. ((err_texts[template_name:lower()] and 'text1') or 'text2') .. '> is Latin script (pos ' .. pos .. ')', template_name, nocat);
end

local swap = 'yes' == args_t.swap; -- boolean
local out = {};

local ietf_tags = ietf_tag_make (args_t, tag, swap); -- for calls to {{lang}}
-- create base-form arguments tables
local lang_xx_args_t = {['code']=tag, ['label']=args_t.label, ['link']=args_t.link, ['cat']=args_t.cat, ['nocat']=args_t.nocat, ['cat']=args_t.cat}; -- for whichever <textn> renders first
local lang_args_t = {['code']=ietf_tags, ['cat']=args_t.cat, ['nocat']=args_t.nocat, ['cat']=args_t.cat}; -- for whichever <textn> renders second

param_select (args_t, lang_args_t, lang_xx_args_t, swap); -- load <lang_args_t>, <lang_xx_args_t> tables with appropriate enumerated parameters from <args_t> table according to <swap>

if swap then -- non-Latin script <text2> renders first
lang_xx_args_t.text = text2;
lang_args_t.text = text1;
table.insert (out, lang._lang_xx_inherit (lang_xx_args_t)); -- render non-Latin script <text2> upright
else -- Latin script <text1> renders first
lang_xx_args_t.text = text1;
lang_args_t.text = text2;
table.insert (out, lang._lang_xx_italic (lang_xx_args_t)); -- render Latin script <text1> in italics
end

table.insert (out, separator_get (args_t.separator)); -- insert the separator
table.insert (out, lang._lang (lang_args_t)); -- and render the other of <text1> or <text2>

if translation then -- if positional parameter 4 (translation of <text1> and <text2>)
table.insert (out, lang._translation_make ({['translation'] = translation, ['label']=args_t.label, ['link']=args_t.link})); -- add translation to rendering
end

return table.concat (out)
end

--[[--------------------------< L A N G _ X 2 >----------------------------------------------------------------

implements {{lang-x2}}; template entry point

]]

local function lang_x2 (frame)
local args_t = getArgs (frame);
return _lang_x2 (args_t);
end

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

return {
lang_x2 = lang_x2,
}

Module:Lang/utilities - Revision history

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Nordic Larp Wiki>Trappist the monk at 14:19, 9 January 2025