Module:Lang: Difference between revisions
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local p = {};
local initial_style_state; -- set by
local getArgs = require ('Module:Arguments').getArgs;
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text = mw.ustring.gsub (text, '%[%[[^|]+|([^%]]+)%]%]', '%1'); -- remove the link and markup from complex wikilink in case interwiki to non-Latn wikipedia
return not is_set (mw.ustring.gsub (text, latn, '')); -- replace all latn characters with empty space; if result is all empty space, text is latn
end
--[[--------------------------< I N V E R T _ I T A L I C S >-------------------------------------------------
This function attempts to invert the italic markup a args.text by adding/removing leading/trailing italic markup
in args.text. Like |italic=unset, |italic=invert disables automatic italic markup. Individual leading/trailing
apostrophes are converted to their html numeric entity equivalent so that the new italic markup doesn't become
bold markup inadvertently.
Leading and trailing wiki markup is extracted from args.text into separate table elements. Addition, removal,
replacement of wiki markup is handled by a string.gsub() replacement table operating only on these separate elements.
In the string.gsub() matching pattern, '.*' matches empty string as well as the three expected wiki markup patterns.
This function expects that markup in args.text is complete and correct; if it is not, oddness may result.
]]
local function invert_italics (source)
local invert_pattern_table = { -- leading/trailing markup add/remove/replace patterns
[""]="\'\'", -- empty string becomes italic markup
["\'\'"]="", -- italic markup becomes empty string
["\'\'\'"]="\'\'\'\'\'", -- bold becomes bold italic
["\'\'\'\'\'"]="\'\'\'", -- bold italic become bold
};
local seg = {};
source = source:gsub ("%f[\']\'%f[^\']", '&'); -- protect single quote marks from being interpreted as bold markup
seg[1] = source:match ('^(\'\'+%f[^\']).+') or ''; -- get leading markup, if any; ignore single quote
seg[3] = source:match ('.+(%f[\']\'\'+)$') or ''; -- get trailing markup, if any; ignore single quote
if '' ~= seg[1] and '' ~= seg[3] then -- extract the 'text'
seg[2] = source:match ('^\'\'+%f[^\'](.+)%f[\']\'\'+$') -- from between leading and trailing markup
elseif '' ~= seg[1] then
seg[2] = source:match ('^\'\'+%f[^\'](.+)') -- following leading markup
elseif '' ~= seg[3] then
seg[2] = source:match ('(.+)%f[\']\'\'+$') -- preceding trailing markup
else
seg[2] = source -- when there is no markup
end
seg[1] = seg[1]:gsub (".*", invert_pattern_table, 1); -- replace leading markup according to pattern table
seg[3] = seg[3]:gsub (".*", invert_pattern_table, 1); -- replace leading markup according to pattern table
return table.concat (seg); -- put it all back together and done
end
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no - force args.text to be rendered in normal font; returns 'normal'
unset - disables font control so that font-style applied to text is dictated by markup inside or outside the template; returns 'inherit'
invert - disables font control so that font-style applied to text is dictated by markup outside or inverted inside the template; returns 'invert'
]]
local function validate_italic (italic, italics)
local properties = {['yes'] = 'italic', ['no'] = 'normal', ['unset'] = 'inherit', ['invert'] = 'invert', ['default'] = nil};
if italic and italics then -- return nil and an error message if both are set
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if text:match ('^%*') then
table.insert (span, '*'); -- move proto language text prefix outside of italic markup if any; use numeric entity because plan splat confuses MediaWiki
text = text:gsub ('^%*', ''); -- remove the
end
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end
-- if ('unset' ~= args.italic) and ('unset' ~= args.italics) then -- allow italic markup when |italic=unset or |italics=unset
if ('unset' ~= style) and ('invert' ~=style) then
if args.text:find ("%f[\']\'\'%f[^\']") or args.text:find ("%f[\']\'\'\'\'\'%f[^\']") then -- italic but not bold, or bold italic
return make_error_msg ('text has italic markup', args, template);
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end
if 'invert' == args.italic then
args.text = invert_italics (args.text)
end
args.text = proto_prefix (args.text, language_name); -- prefix proto-language text with a splat
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end
if 'invert' == args.italic then
args.text = invert_italics (args.text)
end
args.text = proto_prefix (args.text, language_name); -- prefix proto-language text with a splat
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