text_mul_Join

You've got a subject, a style, a lighting phrase, a quality tag - and you're hand-wiring them into one giant prompt with + nodes and prayer. text_mul_Join gives you eight text inputs and a set of join rules, and it does the combining for you. It's the "assemble a prompt from parts" node, and it's the sort of thing that quietly earns its place once your prompt starts coming from multiple sources (a wildcard node, a saved snippet, a fixed style block).

It's from ComfyUI-Apt_Preset, the big cardenluo pack built around a Loader → Controller → Sampler philosophy. Small nodes like this are the "prompt" utility drawer of the pack. English docs are thin (the pack's own descriptions are Chinese-first), but the node face is self-explanatory.

How it works

Each of text1 through text8 is normalized first - NFKC folded, non-printable characters dropped, whitespace trimmed. Empty inputs are skipped entirely, so you can leave slots unused and it won't emit stray separators. Then join_rule decides the glue:

• None - raw concatenation, no separator.
• Line / Space / Tab / Pipe - \n, space, \t, or |.
• Comma / Period / Semicolon - and here's the quirk: these use full-width Chinese punctuation (，。；), not the half-width ASCII you might expect. That's deliberate - the author's audience writes in Chinese - but if you feed the output into an English-tag model, swap to Space or Line, or use Custom.
• Custom - custom_pattern takes over, with {text1} … {text8} placeholders you can rearrange, repeat, or drop. This is the mode for "style then subject then quality, no commas".

If everything comes out empty, you get ❌ No valid content to join as a string - harmless in a prompt, but a nice signal when you're debugging.

Inputs and outputs

• join_rule - the enum above; Comma is the default, which given the full-width thing is worth knowing before it surprises you.
• custom_pattern - only read in Custom mode; default is {text1},{text2},… so you'll want to edit it.
• text1–text8 - plain string inputs.
• Output: joined_text, a single STRING that goes straight into a CLIP Text Encode or downstream text nodes.

Installing it

Same pack, same install. ComfyUI Manager → search ComfyUI-Apt_Preset, or:

cd ComfyUI/custom_nodes
git clone https://github.com/cardenluo/ComfyUI-Apt_Preset

Restart ComfyUI, and on Windows run install.bat so the pack's heavier requirements (onnxruntime, scenedetect, pandas, and friends) are actually present - most of those aren't needed by this node, but the pack imports them at load time.

Common issues

The two things that trip people: forgetting that Comma means full-width ，, and expecting custom_pattern to do something in non-Custom modes (it doesn't). Both are one dropdown away. And because it's part of a big pack, keep the pack updated if ComfyUI's frontend updates break rendering - the "switch back to the legacy canvas" fix for Nodes 2.0 applies to any old pack like this one.