Fish

abbr = "Most Addictive Feature of Fish Shell"

cross-posted from: https://lemmy.wtf/post/26550037 to fishshell@programming.dev just for the attention of more fish users.

fin - fish extensible text editor written in fish

It's really just a novel proof of concept.

Just showing off how useful fish can be.

And I really liked the idea of my text editor being extensible in the language I'm most familiar with, fish, using it every day on the command line.

I burned out on it after the first month (and wrestling undo/redo to work how I wanted next month (or two)), so progress has stalled for a few months [~ so it's not yet up to the level of features [e.g. syntax highlighting] before I start bootstrapping its development, writing fin in fin, rather than in emacs]. :/ But it still does the job. :)

(And, FYI, fish fans, see the fishsticks branch for the more fish-centric version (fewer unixy-tool dependencies (than main branch) and less awk(wardness) (than arctictern branch))

Feel free to contribute or fork, if you like the fun idea. :D

PS, fin is tiny. Fewer lines of code than e.g. even just the git thing in the default fish prompt. And it's a whole text editor! :)

Started on a whim. Is actually useable.

I'm writing a fish script to process the output of music tagging programs (like operon). I use this for instance to list the filenames of all music tracks in a collection that are missing certain tags like a date of release or which have a CD number tag but no tracknumber tag.

Unfortunately the output I'm parsing may control control characters // escape sequences. This caused me quite a lot of headache during debugging.

Take the following string for instance: it will display as tracknumber (including the leading whitespace` in my terminal. The word itself only has 11 characters so naturally I tried to call string trim on it, but that doesn't actually alter it because on closer inspection the character sequence looks like this:

string_value= tracknumber
string_length=16
0:
:[
2:0
3:m
4:
5:t
6:r
7:a
8:c
9:k
10:n
11:u
12:m
13:b
14:e
15:r

As you can see it starts with a terminal escape sequence which is rendered as a whitespace.

Is there an easy way to strip any and all escape sequences from a variable? I used regular expression search and replace with some success, but that seems quite a brittle approach as I can't anticipate every single (edge) case and could also accidentally remove stuff I want to keep.

I often write multiple statements on the same logical line. For instance short loops that converts one image format to another.

Is there a way to bring up tab completions or history search for subsequent statements? After beginning a new command with ; && &or | I want to be able to make use of suggestions again.

cross-posted from: https://pawb.social/post/5933345

plan for the now completed port of fish to rust