Sushi Splitters
Mod portal URL: https://mods.factorio.com/mod/sushi-splitters

Description:
Use a single splitter to extract all the stuff you need from your sushi belt using all circuit conditions. When the output is full, it won't block but will pass the filtered items to the unfiltered output ...

Five years passed but finally I managed to code it myself
https://mods.factorio.com/mod/sushi-splitters

Just needed to wait for the 2.0.67 version with splitter circuit support.

A possible solution if no default function is available below.
Performance-wise a native function would still be preferred.

local quality_levels = {
["normal"] = 1,
["uncommon"] = 2,
["rare"] = 3,
["epic"] = 4,
["legendary"] = 5
}

function item_matches_filter(item, filter)
-- Check name ...

Does a standard function exist to check if an Item satisfies a Filter?

Given for example an item:
{name = "automation-science-pack", quality = "normal"}
and a filter:
{name = "automation-science-pack", quality = "uncommon", comparator = "<"}

I want to check if the item satisfies the filter and don ...

If you want to mod a splitter, you can mod it this way for me

SpaceXing the rockets back to a landing pad would be so insanely cool

Searching for a solution once again, but there just isn't an option to change splitter behaviour, is there?
TransportBeltConnectable Prototype / Splitter Prototype


Wouldn't that be enough ? splitfilter.png

Doesn't work with a 'rainbow' belt containing mixed contents.

Edits, thinking out loud ...

Here's a more sophisticated application. I have a 'rainbow' belt on which I put a lot of different items.
Upstream I only put items on the belt if they are needed downstream.
I create a 'request signal' based on chest inventory downstream.
factorio3.png
The 'Belt sorter' mod has some features to ...

Hello fellow Factorians,

I was wondering if a small addition to the splitter is possible. I use the splitter filter function a lot to get specific items from mixed belts but it takes quite a lot of tiles to put them back on. A toggle option like the one in the attached screenshot would make my ...