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Mô đun:InfoboxImage

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-- Inputs:--    image - Can either be a bare filename (with or without the File:/Image: prefix) or a fully formatted image link--    page - page to display for multipage images (DjVu)--    size - size to display the image--    maxsize - maximum size for image--    sizedefault - default size to display the image if size param is blank--    alt - alt text for image--    title - title text for image--    border - set to yes if border--    center - set to yes, if the image has to be centered--    upright - upright image param--    suppressplaceholder - if yes then checks to see if image is a placeholder and suppresses it--    link - page to visit when clicking on image--    class - HTML classes to add to the image-- Outputs:--    Formatted image.-- More details available at the "Module:InfoboxImage/doc" pagelocal i = {}-- List of placeholder images and tracking categories stored in [[Module:InfoboxImage/data]]-- Other constants:--   the system-wide default thumbnail size (in px)local defaultThumbnailSize = 250-- If page is not a user page, return tracking category. Else return empty.local function trackingCat(cat)	local ns = mw.title.getCurrentTitle().nsText:lower()    local categories = mw.loadData('Module:InfoboxImage/data').categories	return (ns ~= 'thành_viên' and ns ~= 'thảo_luận_thành_viên' and categories[cat]) or ""end-- Determine whether image is a placeholderfunction i.IsPlaceholder(image)    -- change underscores to spaces    image = mw.ustring.gsub(image, "_", " ");    assert(image ~= nil, 'mw.ustring.gsub(image, "_", " ") must not return nil')    -- if image starts with [[ then remove that and anything after |    if mw.ustring.sub(image,1,2) == "[[" then        image = mw.ustring.sub(image,3);        image = mw.ustring.gsub(image, "([^|]*)|.*", "%1");        assert(image ~= nil, 'mw.ustring.gsub(image, "([^|]*)|.*", "%1") must not return nil')    end    -- Trim spaces    image = mw.ustring.gsub(image, '^[ ]*(.-)[ ]*$', '%1');    assert(image ~= nil, "mw.ustring.gsub(image, '^[ ]*(.-)[ ]*$', '%1') must not return nil")    -- remove prefix if exists    local allNames = mw.site.namespaces[6].aliases    allNames[#allNames + 1] = mw.site.namespaces[6].name    allNames[#allNames + 1] = mw.site.namespaces[6].canonicalName    for i, name in ipairs(allNames) do        if mw.ustring.lower(mw.ustring.sub(image, 1, mw.ustring.len(name) + 1)) == mw.ustring.lower(name .. ":") then            image = mw.ustring.sub(image, mw.ustring.len(name) + 2);            break        end    end    -- Trim spaces    image = mw.ustring.gsub(image, '^[ ]*(.-)[ ]*$', '%1');    -- capitalise first letter    image = mw.ustring.upper(mw.ustring.sub(image,1,1)) .. mw.ustring.sub(image,2);    local placeholder_image = mw.loadData('Module:InfoboxImage/data').placeholder_image    return placeholder_image[image]endlocal function isempty(x)    return (not x) or x == ""end-- Main entry pointfunction i.InfoboxImage(frame)    local image = frame.args["image"];        if isempty(image) then        return "";    end    if image == "&nbsp;" then        return image;    end    if frame.args["suppressplaceholder"] ~= "no" then        if i.IsPlaceholder(image) == true then            return "";        end    end        if string.find(image, "^%[*https?:") then		-- Error category.		return trackingCat("url_image_links")	end    if mw.ustring.sub(image,1,2) == "[[" then        -- search for thumbnail images and add to tracking cat if found        local cat = "";        if mw.title.getCurrentTitle().namespace == 0 and (mw.ustring.find(image, "|%s*thumb%s*[|%]]") or mw.ustring.find(image, "|%s*thumbnail%s*[|%]]")) then            cat = trackingCat("thumbnail_images")        end        return image .. cat;    elseif mw.ustring.sub(image,1,2) == "{{" and mw.ustring.sub(image,1,3) ~= "{{{" then        return image;    elseif mw.ustring.sub(image,1,1) == "<" then        return image;    elseif mw.ustring.sub(image,1,8) == mw.ustring.char(127).."'\"`UNIQ" then        -- Found strip marker at begining, so pass don't process at all        return image;    else        local result = "";        local page = frame.args["page"];        local upright = frame.args["upright"] or ""        local size = frame.args["size"];        local maxsize = frame.args["maxsize"];        local sizedefault = frame.args["sizedefault"];        local alt = frame.args["alt"];        local link = frame.args["link"];        local title = frame.args["title"];        local border = frame.args["border"];        local thumbtime = frame.args["thumbtime"] or "";        local center = frame.args["center"];        local class = frame.args["class"];                -- remove prefix if exists        local allNames = mw.site.namespaces[6].aliases        allNames[#allNames + 1] = mw.site.namespaces[6].name        allNames[#allNames + 1] = mw.site.namespaces[6].canonicalName        for i, name in ipairs(allNames) do            if mw.ustring.lower(mw.ustring.sub(image, 1, mw.ustring.len(name) + 1)) == mw.ustring.lower(name .. ":") then                image = mw.ustring.sub(image, mw.ustring.len(name) + 2);                break            end        end                if not isempty(maxsize) then            -- if no sizedefault nor upright, then set to maxsize            if isempty(sizedefault) and isempty(upright) then                sizedefault = maxsize            end            -- check to see if size bigger than maxsize            local maxsizenumber = tonumber(mw.ustring.match(maxsize,"%d*")) or 0;            if not isempty(size) then                local sizenumber = tonumber(mw.ustring.match(size,"%d*")) or 0;                if sizenumber > maxsizenumber and maxsizenumber > 0 then                    size = maxsize;                end            end            -- check to see if upright bigger than maxsize (at default preferred size)            if not isempty(upright) then                local uprightnumber = tonumber(upright) or (upright == "yes" and 0.75) or 0                if uprightnumber*defaultThumbnailSize > maxsizenumber and maxsizenumber > 0 then                    upright = tostring(maxsizenumber/defaultThumbnailSize)                end            end        end        -- add px to size if just a number        if (tonumber(size) or 0) > 0 then            size = size .. "px";        end        -- add px to sizedefault if just a number        if (tonumber(sizedefault) or 0) > 0 then            sizedefault = sizedefault .. "px";        end                result = "[[File:" .. image;        if not isempty(page) then            result = result .. "|page=" .. page;        end        if not isempty(size) then            result = result .. "|" .. size;        elseif not isempty(sizedefault) and isempty(upright) then            result = result .. "|" .. sizedefault;        else            result = result .. "|frameless";        end        if center == "yes" then            result = result .. "|center"        end        if not isempty(alt) then            result = result .. "|alt=" .. alt;        end        if not isempty(link) then            result = result .. "|link=" .. link;        end        if border == "yes" then            result = result .. "|border";        end        if upright == "yes" then            result = result .. "|upright";        elseif upright ~= "" then            result = result .. "|upright=" .. upright;        end        if thumbtime ~= "" then            result = result .. "|thumbtime=" .. thumbtime;        end        if not isempty(class) then            result = result .. "|class=" .. class;        end        -- if alt value is a keyword then do not use as a description        if alt == "thumbnail" or alt == "thumb" or alt == "frameless" or alt == "left" or alt == "center" or alt == "right" or alt == "upright" or alt == "border" or mw.ustring.match(alt or "", '^[0-9]*px$', 1) ~= nil then            alt = nil;        end        if not isempty(title) then            -- does title param contain any templatestyles? If yes then set to blank.            if mw.ustring.match(frame:preprocess(title), 'UNIQ%-%-templatestyles', 1) ~= nil then                title = nil;            end        end        if not isempty(title) then            result = result .. "|" .. title;        end        result = result .. "]]";                return result;    endendreturn i;
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