nu-plugin-bexpand

Bash-style brace expansion in nushell.

Format and Functionality

The format specification and functionality is fully explained in the bexpand crate, which implements the parser and iterator types independent of nushell.

Usage

> cargo install nu-plugin-bexpand
...

> register ~/.cargo/bin/nu_plugin_bexpand

> help str bexpand
Bash-style brace expansion

Usage:
  > str bexpand 

Flags:
  -h, --help - Display the help message for this command

Signatures:
  <string> | str bexpand -> list<string>
  list<string> | str bexpand -> list<string>

Examples:
  Get a list of standard nushell config items
  > '~/config/nushell/{env,config,plugin}.nu' | str bexpand

> 'a{b,c,d{🥰..🥴..2}e}f' | str bexpand
╭───┬────────╮
│ 0 │ abf    │
│ 1 │ acf    │
│ 2 │ ad🥰ef │
│ 3 │ ad🥲ef │
│ 4 │ ad🥴ef │
╰───┴────────╯
 
> 'a{1..3}c{4..6..2}b' | str bexpand
╭───┬───────╮
│ 0 │ a1c4b │
│ 1 │ a1c6b │
│ 2 │ a2c4b │
│ 3 │ a2c6b │
│ 4 │ a3c4b │
│ 5 │ a3c6b │
╰───┴───────╯

> [a{🤐..🤒}b c{🧛..🦜..31}d e{15..-23..8}f] | str bexpand
╭────┬───────╮
│  0 │ a🤐b  │
│  1 │ a🤑b  │
│  2 │ a🤒b  │
│  3 │ c🧛d  │
│  4 │ c🦼d  │
│  5 │ c🦝d  │
│  6 │ e15f  │
│  7 │ e7f   │
│  8 │ e-1f  │
│  9 │ e-9f  │
│ 10 │ e-17f │
╰────┴───────╯

> '{0..🧿..129300}' | str bexpand
╭───┬────╮
│ 0 │ 0  │
│ 1 │ 🥄 │
╰───┴────╯

> ['success{a,b,c}test' 'fail{test'] | str bexpand
Error:   × Brace expression failed to parse
   ╭─[entry #13:1:1]
 1 │ ['success{a,b,c}test' 'fail{test'] | str bexpand
   ·                       ─────┬─────
   ·                            ╰── 0: at line 1, in Eof:
fail{test
    ^


   ╰────

> "{\u{D7FF}..\u{E000}}" | str bexpand
Error:   × Expression failed to generate
   ╭─[entry #15:1:1]
 1 │ "{\u{D7FF}..\u{E000}}" | str bexpand
   ·                          ─────┬─────
   ·                               ╰── converted integer out of range for `char`
   ╰────