# Description
Fixes#7886.
```
/home/gabriel/CodingProjects/nushell〉'A|B|C' | parse -r '(\w)\|(\w)\|(\w)' 01/29/2023 01:08:29 PM
╭───┬──────────┬──────────┬──────────╮
│ # │ capture0 │ capture1 │ capture2 │
├───┼──────────┼──────────┼──────────┤
│ 0 │ A │ B │ C │
╰───┴──────────┴──────────┴──────────╯
```
# User-Facing Changes
Columns automatically named by `parse -r` are now 0-indexec and
uncapitalised.
# Tests + Formatting
Don't forget to add tests that cover your changes.
Make sure you've run and fixed any issues with these commands:
- `cargo fmt --all -- --check` to check standard code formatting (`cargo
fmt --all` applies these changes)
- `cargo clippy --workspace -- -D warnings -D clippy::unwrap_used -A
clippy::needless_collect` to check that you're using the standard code
style
- `cargo test --workspace` to check that all tests pass
# After Submitting
If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.
`echo` tends to confuse new Nu users; they expect it to work like
`print` when it just passes a value to the next stage of the pipeline.
We haven't quite figured out what to do about `echo` in the long run,
but I think a good start is to remove `echo` from command examples where
it would be unnecessary and arguably unidiomatic.
* Add failing test that list of ints and floats is List<Number>
* Start defining subtype relation
* Make it possible to declare input and output types for commands
- Enforce them in tests
* Declare input and output types of commands
* Add formatted signatures to `help commands` table
* Revert SyntaxShape::Table -> Type::Table change
* Revert unnecessary derive(Hash) on SyntaxShape
Co-authored-by: JT <547158+jntrnr@users.noreply.github.com>
