feat: string batch generators

[psychedelicious]

Summary

• Add string batch generators:

  • Parse String: Split the input string on the user-defined character. Same as float and int parse string generators.
  • Dynamic Prompts (Random): Run dynamic prompts on the input string with its random generator. Optionally provide a seed for reproducible outputs.
  • Dynamic Prompts (Combinatorial): Run dynamic prompts on the input string with its combinatorial generator.

  The dynamic prompts generators are split like this because

  • It's hard to fit them in a single node with a smooth UI. I couldn't get it to feel or look nice.
  • Fiddly implementation to handle both in one generator, because they want different settings (e.g. max prompts vs count + seed).

• Support loading from file for all string input generators. The files are loaded into memory in the frontend, they are never uploaded to the server. Max size of 128KB bc we don't want to load so much data into the node. This might be way too big but it shouldn't break anything, might just be a bit laggy if a user loads such a huge list of strings.

• Support for special characters like \n to split string inputs on newlines.

Related Issues / Discussions

QA Instructions

Try it out!

Merge Plan

n/a

Checklist

• The PR has a short but descriptive title, suitable for a changelog

[psychedelicious]

Demo of the string generators and load from file functionality. All generators that take a string input support load from file and have the same parsing (shown with the float generator).

Screen.Recording.2025-01-20.at.8.37.54.am.mov