Vidi fonton por Modulo:InfoboxImage/provejo

-- InfoboxImage, 20151120
-- Inputs:
--    image - Can either be a bare filename (with or without the File:/Image: prefix) or a fully formatted image link
--    ending - An optional parameter for the file ending, like gif, jpg, jpeg, png, svg.
--    endingdefault - An optional parameter for the default ending.
--    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
--    link - page to visit when clicking on image
--    suppressplaceholder - if yes then checks to see if image is a placeholder and suppresses it
--    usecaption - if yes then the caption from the image is used, else it isn't used
--                 and the infobox has to add it. this avoids dupplicates
-- Outputs:
--    Formatted image.

local i = {};

local placeholder_image = {
    "Blue - Replace this image female.svg",
    "Blue - Replace this image male.svg",
    "Female no free image yet.png",
    "Flag of None (square).svg",
    "Flag of None.svg",
    "Flag of.svg",
    "Green - Replace this image female.svg",
    "Green - Replace this image male.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.svg",
    "Red - Replace this image male.svg",
    "Replace this image female (blue).svg",
    "Replace this image female.svg",
    "Replace this image male (blue).svg",
    "Replace this image male.svg",
    "Silver - Replace this image female.svg",
    "Silver - Replace this image male.svg",
}

function i.IsPlaceholder(image)
    -- change underscores to spaces
    image = mw.ustring.gsub(image, "_", " ");
    assert(image ~= nil, 'mw.ustring.gsub(image, "_", " ") ne redonu nenion')
    -- 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") ne redonu nenion')
    end
    -- Trim spaces
    image = mw.ustring.gsub(image, '^[ ]*(.-)[ ]*$', '%1');
    assert(image ~= nil, "mw.ustring.gsub(image, '^[ ]*(.-)[ ]*$', '%1') ne redonu nenion")
    -- 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.ValidateEnding (f)
    -- analyzes the valid endings for images in the Wikipedia. 
    -- according to http://commons.wikimedia.org/wiki/Commons:File_types, 
    -- but not tiff, because browser can have some problems with this format 
    -- xcf works only in MediaWiki
    local f = mw.ustring.lower(f)
    if f == "gif" or f == "jpg" or f == "jpeg" or f == "png" or f == "svg" then 
        return true
    else return false
    end    
end    

function i.AddEnding (image, ending, endingdefault)
        -- analyzes, if an ending already exists in the image
        local f = image:gsub("^(.*)%.","") 
        f = mw.ustring.lower(f)  -- it changes letters into lower case letters
        if i.ValidateEnding(f) == true then 
            return image  -- if yes, it returns the image name without change
        end
        -- add an ending to the image name
        if ending ~="" and ending ~=nil then
            if i.ValidateEnding(ending) == true then 
                image = image .. "." .. ending
            end    
        elseif endingdefault ~="" and endingdefault ~=nil then
            if i.ValidateEnding(endingdefault) == true then 
                image = image .. "." .. endingdefault
            end    
        end  
        return image
end

function i.GetCaption (image, flag)
		local i = image
		local c = ""		
		local f = flag
		-- if there is a caption after the wiki image code, extract it
		local br, caption = mw.ustring.find(image,"(%]%]%s*%<%s*[Bb][Rr]%s*/?%s*%>)%s*(%S?)")
		if (br~=nil) and (caption~=nil) then
			local c1 = caption 
			local i1 = br + 1
			if (f == "yes") then			
				c = mw.ustring.sub( i, c1 )
				c = "<div>" .. c .. "</div>"
			end
			i = mw.ustring.sub( i, 1, i1)
		end	
		return c, i -- caption, image
end	-- GetCaption

-- analyses if the given text could be an image parameter
function i.ImageParam (text)
		local r = false	
		if (text == "alt=") or (text== "border") or (text=="bottom") or (text== "center") 
		or (text== "framed") or (text=="lang=") or (text== "left") or (text== "link=") 
		or (text=="middle") or (text=="none") or (text== "px") or (text== "right") 
		or (text== "sub") or (text=="super") or (text== "thumbtime") or (text== "top") 
		or (text== "upright") then
        		r = true
    	end
	
		return r
end	

-- analyses the wiki syntax of the image and a little bit changes it
-- it removes "thumb", "framed" and their aliases
-- it adds "frameless", if needed
function i.syntax (image, caption, flag)
		local i = image 
		local c = caption
		local f = flag
		if (i =="") then
			return c, i -- caption, image
		end	
		local i2 = i -- copy for the parameter analysis 		
		-- extracts the image
        i = mw.ustring.sub(i,3); -- removes [[
        i = mw.ustring.gsub(i, "([^|]*)|.*", "%1");	
		i2 = mw.ustring.gsub(i2, "%]%]", "") -- removes ]] 
		-- split the image syntax 
		local strings = mw.text.split(i2, "|", plain)
		local output = {}
		local isframeless = false
		local size = #strings
		local n = 0 -- number of parameters, that have to remain 
		if (size>0) then
		for k,v in pairs(strings) do
			-- local parameter = i.ImageParam(v) -- doesn't work. why? :-(
			-- analyses if the parameter is "thumb" or an alias and removes it
			-- it has to be changed, so the variations could be found automatically
			if ((v =="thumb") and (v~="thumbtime")) or (v =="thumbnail") or (v=="eta") 
			or (v== "framed") or (v== "frame") then
				output[k] = ""
			-- analyses if the parameter is "frameless"	and set a flag for this
			elseif (v == "frameless") then
				-- analyses if it is the last parameter
				if (k ~=size) then
					v = v .. "|"
				end				
				output[k] = v 
				isframeless = true
				n = n + 1
			-- analyses if the parameter is an other part of the wiki image syntax	
			--elseif parameter then
			-- it has to be changed, so the variations could be found automatically
			elseif (v== "border") or (v=="bottom") or (v== "center") 
		or (v== "left") or (v=="middle") or (v=="none") or (v== "right") 
		or (v== "sub") or (v=="super") or (v== "thumbtime") or (v== "top") 
		or (v== "upright") then
				-- analyses if it is the last parameter			
				if (k ~=size) then
					v = v .. "|"
				end				
				output[k] = v 
				n = n + 1
			-- analyses the parameters with values
			elseif mw.ustring.find(v,"alt=") or mw.ustring.find(v, "lang=") 
			or mw.ustring.find(v, "link=") or mw.ustring.find (v, "px") 
			or mw.ustring.find(v, "upright=") then
				-- analyses if it is the last parameter			
				if (k ~=size) then
					v = v .. "|"
				end				
				output[k] = v 
				n = n + 1			
			-- analyses if it is the image	
			-- it has to be changed, so the variations could be found automatically
			elseif mw.ustring.find(v, "Dosiero:") or mw.ustring.find(v, "File:") then
				output[k] = ""
			else	
				-- analyses if it is the last parameter			
				if (k ~=size) then
					v = v .. "|"
				end					
				output[k] = v 
				n = n  + 1
				if (caption == "") then
					c = v
				end	
			end
		end	
		end -- end if size
		local r = ""
		if n > 0 then -- if image parameters were found above, add them to the image code
			r = "[[" .. i .. "|" .. table.concat(output)
		else
			r = "[[" .. i 
		end
		if (isframeless == false) then
			r = r .. "|frameless"
		end	
		r = r .. "]]"
		r = mw.ustring.gsub(r, "||", "|")
		
		-- analyses it "f" has the value "yes". if not, change the caption into empty string
		if (f ~= "yes") then 
			c = ""
		else
			c = mw.ustring.gsub(c,"|","")
		end
		
		return c, r -- caption, image syntax with parameters
end	

-- funkction for #invoke: in infoboxes
function i.InfoboxImage(frame)
    local image = frame.args["image"];
    local usecaption = frame.args["usecaption"];
        local ending = frame.args["ending"];
        local endingdefault = frame.args["endingdefault"];        
        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"]
        local placeholder = frame.args["suppressplaceholder"]
        
        -- test, if there are more than one image in a string, for example if the code is from Wikidata
        local strings = ""
        local n = 1
        if image ~= "" and image ~= nil then
        	strings = mw.text.split(image, ",", plain)
        	n = #strings        	 -- number of images
        end
        if n>1 then
        	local images = ""
        	for k,v in pairs(strings) do
        		 images = images .. i._InfoboxImage(v, ending, endingdefault, size, maxsize, sizedefault, alt, link, title, border, upright, thumbtime, center, usecaption, placeholder) 
        	end	
        	return images
        end
   
	return  i._InfoboxImage(image, ending, endingdefault, size, maxsize, sizedefault, alt, link, title, border, upright, thumbtime, center, usecaption, placeholder) 

end
        
-- function for other modules
function i._InfoboxImage(image, ending, endingdefault, size, maxsize, sizedefault, alt, link, title, border, upright, thumbtime, center, usecaption, placeholder)
    if image == "" or image == nil then
        return "";
    end
    if image == "&nbsp;" then
        return image;
    end    
    --if frame.args["suppressplaceholder"] ~= "no" then
    if placeholder ~= "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
        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*eta%s*[|%]]")) then
        		local caption, image = i.GetCaption (image, usecaption)
        		caption, image = i.syntax (image, caption, usecaption)
        		return image .. caption .. "[[Kategorio:Paĝoj uzantaj informkestojn kun etaj bildoj]]";
        else
        		local caption, image = i.GetCaption (image, usecaption)
        		caption, image = i.syntax (image, caption, usecaption)        		
        		return image .. caption 
        end
    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;        
    else
        local result = "";

        
        -- 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
        image = i.AddEnding (image,ending,endingdefault)
        
        result = "[[File:" .. image;
        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 ~= "" then
            result = result .. "|upright=" .. upright;
        end    
        if thumbtime ~= "" then
        	result = result .. "|thumbtime=" .. thumbtime;
        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;