Vim :s without g still replaces all matches

[mattfbacon]

Summary

Using :s without g replaces all matches in the line as if g was used.

Steps to trigger the problem:

1. Enable vim mode.
2. Do a replacement like :s/a/b

Actual Behavior:
All occurrences of a on the line are replaced with b.

Expected Behavior:
Only the first occurrence is replaced with b.

Zed Version and System Specs

Zed: v0.174.0 (Zed Dev b7244af0938bf8eb85c55301aae347f6eb73fbb1)
OS: Linux Wayland arch unknown
Memory: 31.1 GiB
Architecture: x86_64
GPU: Intel(R) Iris(R) Xe Graphics (ADL GT2) || Intel open-source Mesa driver || Mesa 24.3.4-arch1.1.1

[ConradIrwin]

👍 This is known; I don't think it'd be too hard to fix, but we need to wire some extra state through the replace code.

https://cal.com/conradirwin/pairing if you want to work on it with me.

[mattfbacon]

I can do it myself, I just have one question, where do we want to accommodate this in Zed? Is it another search option like regex, case sensitive, and whole word, or something else?

[ConradIrwin]

I think we'd have to put it as an option in the buffer search. I don't know that we need a UI way to turn it on, but we probably do need some kind of indicator if it is in the "only the first on one line" mode.