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| -- Module for: Formatting Logo
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| local p = {}
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| local concat = table.concat
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| local split = mw.text.split
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| local trim = mw.text.trim
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| local upper = mw.ustring.upper
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| local sub = mw.ustring.sub
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|
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| local function ucfirst(s)
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| return upper(sub(s, 1, 1)) .. sub(s, 2)
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| end
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|
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| function p.format(frame)
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| local gpar = frame.args -- global
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|
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| local fname = ucfirst(trim(gpar[1] or ''))
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| if fname == '' then return '' end -- if file name is "unspecified"
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|
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| local size = trim(gpar[2] or '') -- or '0' for "unspecified"
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| if size:sub(-2) == 'px' then size = size:sub(1, -3) end -- discard 'px' unit if present
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| size = split(size, 'x') -- {width, height} or {height}
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| size = size[2] and size[2] or size[1] -- keep only the specified height (in px)
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|
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| local style = trim(gpar[3] or '') -- or '-' for "unspecified"
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| if style == '-' then style = '' end
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|
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| local title = trim(gpar[4] or '') -- or '' for "unspecified"
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| local what = split(fname, '.', true--[[plain, not regexp]]) --[[detect a filename extension]]
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| --[[if there's a non-empty part before a supported extension, with 1 to 4 characters: 'jpg', 'jpeg', 'gif', 'png', 'svg', 'webp', 'djvu', 'tif', 'tiff'...]]
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| if #what > 1 and #(what[#what]) > 0 and #(what[#what]) < 5 then
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| if title == '' then
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| title = concat(what, '.', 1, -2):gsub('_', ' ') --[[default title from fname without this extension, underscores replaced by spaces]]
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| end
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| what = 'F' -- displaying a file
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| if size == '' or size == '0' then
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| size = '36' -- default file size (in px)
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| end
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| elseif fname:sub(1, 2) == 'U+' or fname:sub(1, 2) == '&#' then
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| what = 'U' -- displaying an Unicode code point instead of a file
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| if size == '' or size == '0' then
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| size = '15' -- Unicode default font-size (in px)
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| end
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| if title == '' then
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| title = fname--[[default title]]
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| end
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| title = trim(title
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| :gsub('U%+([0-9A-Fa-f]+) ?', function(x) return 'U+' .. upper(x) .. ' ' end)
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| :gsub('&#([0-9A-Fa-f]+);?', function(x) return 'U+' .. upper(x) .. ' ' end))
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| fname = fname
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| :gsub('&#([0-9A-Fa-f]+);?', function(x) return '&#x' .. upper(x) .. ';' end)
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| :gsub('U%+([0-9A-Fa-f]+) ?', function(x) return '&#x' .. upper(x) .. ';' end) .. '️'--[[Emoji-style variation selector 16]]
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| end
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|
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| if what == 'F' then -- displaying a file
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| if style ~= '' then
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| style = '|' .. style
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| end
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| if title ~= '' then
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| title = '|' .. title
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| :gsub('%[', '[')
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| :gsub('%]', ']')
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| :gsub('%|', '{')
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| end
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| return concat{ '[[File:', fname, '|', size, 'x22px', style--[[allow linking]], title, ']]' }
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| else -- displaying an Unicode code point
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| if title ~= '' then
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| title = concat{ ' title="', title:gsub('"', '"'), '"' }
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| end
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| return concat{ '<div style="display:inline-block;position:relative;font-size:', size, 'px;line-height:22px;vertical-align:middle;top:-1px', style, '"', title, '>', fname, '</div>' }
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| end
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| end -- function format
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|
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| return p
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