-- 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 -- Outputs: --    Formatted image. -- More details available at the "Module:InfoboxImage/doc" page  local i = {};  local placeholder_image = {     "Blue - Replace this image female bn.svg",     "Blue - Replace this image male bn.svg",     "Female no free image yet.png",     "Flag of None (square).svg",     "Flag of None.svg",     "Flag of.svg",     "Green - Replace this image female bn.svg",     "Green - Replace this image male bn.svg",     "Image is needed female.svg",     "Image is needed male.svg",     "Location map of None.svg",     "Male no free image yet.png",     "Missing flag.png",     "No flag.svg",     "No free portrait.svg",     "No portrait (female).svg",     "No portrait (male).svg",     "Red - Replace this image female bn.svg",     "Red - Replace this image male bn.svg",     "Replace this image female (blue).svg",     "Replace this image female bn.svg",     "Replace this image male (blue).svg",     "Replace this image male bn.svg",     "Silver - Replace this image female bn.svg",     "Silver - Replace this image male bn.svg",     "Replace this image.svg", 	"Cricket no pic.png", 	"CarersLogo.gif", 	"Diagram Needed.svg", 	"উদাহরণ.jpg", 	"পুরুষ", 	"মহিলা", 	"নারী", 	"Image placeholder.png", 	"No male portrait.svg", 	"Nocover-upload.png", 	"NoDVDcover copy.png", 	"Noribbon.svg", 	"No portrait-BFD-test.svg", 	"Placeholder barnstar ribbon.png", 	"Project Trains no image.png", 	"Image-request.png", 	"Sin bandera.svg", 	"Sin escudo.svg", 	"Replace this image - temple.png", 	"Replace this image butterfly.png", 	"Replace this image.svg", 	"Replace this image1.svg", 	"Resolution angle.png", 	"Image-No portrait-text-BFD-test.svg", 	"Insert image here.svg", 	"No image available bn.svg", 	"NO IMAGE YET square.png", 	"NO IMAGE YET.png", 	"No Photo Available.svg", 	"No Screenshot.svg", 	"No-image-available.jpg", 	"Null.png", 	"PictureNeeded.gif", 	"Place holder.jpg", 	"Unbenannt.JPG", 	"UploadACopyrightFreeImage.svg", 	"UploadAnImage.gif", 	"UploadAnImage.svg", 	"UploadAnImageShort.svg", }  function 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     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);      for i,j in pairs(placeholder_image) do         if image == j then             return true         end     end     return false end  function i.InfoboxImage(frame)     local image = frame.args["image"];          if image == "" or image == nil then         return "";     end     if image == " " then         return image;     end     if frame.args["suppressplaceholder"] ~= "no" then         if i.IsPlaceholder(image) == true then             return "";         end     end      if mw.ustring.lower(mw.ustring.sub(image,1,5)) == "http:" then         return "";     end     if mw.ustring.lower(mw.ustring.sub(image,1,6)) == "[http:" then         return "";     end     if mw.ustring.lower(mw.ustring.sub(image,1,7)) == "[[http:" then         return "";     end     if mw.ustring.lower(mw.ustring.sub(image,1,6)) == "https:" then         return "";     end     if mw.ustring.lower(mw.ustring.sub(image,1,7)) == "[https:" then         return "";     end     if mw.ustring.lower(mw.ustring.sub(image,1,8)) == "[[https:" then         return "";     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*[|%]]") or mw.ustring.find(image, "|%s*থাম্ব%s*[|%]]")) then             cat = "বিষয়শ্রেণী:থাম্বনেইল চিত্রসহ তথ্যছক ব্যবহার করা পাতা";         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,1,5) == mw.ustring.char(127).."UNIQ" then         -- Found strip marker at begining, so pass don't process at all         return image;     elseif mw.ustring.sub(image,4,9) == "`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 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 upright = frame.args["upright"] or "";         local thumbtime = frame.args["thumbtime"] or "";         local center= frame.args["center"];                  -- 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 maxsize ~= "" and maxsize ~= nil then             -- if no sizedefault then set to maxsize             if sizedefault == "" or sizedefault == nil then                 sizedefault = maxsize             end             -- check to see if size bigger than maxsize             if size ~= "" and size ~= nil then                 local sizenumber = tonumber(mw.ustring.match(size,"%d*")) or 0;                 local maxsizenumber = tonumber(mw.ustring.match(maxsize,"%d*")) or 0;                 if sizenumber>maxsizenumber and maxsizenumber>0 then                     size = maxsize;                 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 page ~= "" and page ~= nil then             result = result .. "|page=" .. page;         end         if size ~= "" and size ~= nil then             result = result .. "|" .. size;         elseif sizedefault ~= "" and sizedefault ~= nil then             result = result .. "|" .. sizedefault;         else             result = result .. "|frameless";         end         if center == "yes" then             result = result .. "|center"         end         if alt ~= "" and alt ~= nil then             result = result .. "|alt=" .. alt;         end         if link ~= "" and link ~= nil 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 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 title ~= "" and title ~= nil 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 title ~= "" and title ~= nil then             result = result .. "|" .. title;         elseif alt ~= "" and alt ~= nil then             result = result .. "|" .. alt;         end         result = result .. "]]";                  return result;     end end  return i;