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.
<span style="font-family: monospace, monospace;">{{', template, '}}</span>
]]
local function error_msg_make (msg, template, nocat)
local out = {};
local category = 'Lang and lang-xx';
table.insert (out, table.concat ({'<span style=\"color:#d33\">Error: <span style="font-family: monospace, monospace;">{{', template, '}}</span>: '}));
table.insert (out, msg);
table.insert (out, table.concat ({' ([[Template:', template, '#Error messages|help]])'}));
table.insert (out, '</span>');
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
--[[--------------------------< P A R A M _ S E L E C T >------------------------------------------------------
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
--[[--------------------------< I E T F _ T A G _ M A K E >----------------------------------------------------
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_tparam then table.insert (ietf_tag_t, args_tparam]) 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_t1];
local text1 = args_t.text1 or args_t2];
local text2 = args_t.text2 or args_t3];
local translation = args_t.translation or args_t4];
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: <span style="font-family: monospace, monospace;">' .. tag .. '</span>; IETF format not supported', template_name, nocat);
end
if not unicode.is_Latin (text1) then
--error (template_name)
return error_msg_make ('<span style="font-family: monospace, monospace;"><' .. ((err_textstemplate_name:lower()] and 'text2') or 'text1') .. '></span> is not Latin script', template_name, nocat);
end
if unicode.is_Latin (text2) then
return error_msg_make ('<span style="font-family: monospace, monospace;"><' .. ((err_textstemplate_name:lower()] and 'text1') or 'text2') .. '></span> is Latin script', 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,
}
