This PR closes [Issue
#13482](https://github.com/nushell/nushell/issues/13482)
# Description
This PR tend to make all math function to be constant.
# User-Facing Changes
The math commands now can be used as constant methods.
### Some Example
```
> const MODE = [3 3 9 12 12 15] | math mode
> $MODE
╭───┬────╮
│ 0 │ 3 │
│ 1 │ 12 │
╰───┴────╯
> const LOG = [16 8 4] | math log 2
> $LOG
╭───┬──────╮
│ 0 │ 4.00 │
│ 1 │ 3.00 │
│ 2 │ 2.00 │
╰───┴──────╯
> const VAR = [1 3 5] | math variance
> $VAR
2.6666666666666665
```
# Tests + Formatting
Tests are added for all of the math command to test there constant
behavior.
I mostly focused on the actual user experience, not the correctness of
the methods and algorithms.
# After Submitting
I think this change don't require any additional documentation. Feel
free to correct me in this topic please.
fixes#11900
# Description
Use `serde_json` instead.
# User-Facing Changes
The problem described in the issue now no longer persists.
No whitespace in the output of `to json --raw`
Output of unicode escape changed to consistent `\uffff`
# Tests + Formatting
I corrected all Tests that were affected by this change.
# Description
We made the decision that our floating point type should be referred to
as `float` over `decimal`.
Commands were updated by #9979 and #10320
Now make the internal codebase consistent in referring to this data type
as `float`.
Work for #10332
# User-Facing Changes
`decimal` has been removed as a type name/symbol.
Instead of
```nushell
def foo [bar: decimal] decimal -> decimal {}
```
use
```nushell
def foo [bar: float] float -> float {}
```
Potential effect of `SyntaxShape`'s `Display` implementation now also
referring to `float` instead of `decimal`
# Details
- Rename `SyntaxShape::Decimal` to `Float`
- Update `Display for SyntaxShape` to `float`
- Update error message + fn name in dataframe code
- Fix docs in command examples
- Rename tests that are float specific
- Update doccomment on `SyntaxShape`
- Update comment in script
# Tests + Formatting
Updates the names of some tests
# Description
Currently we support "multiplication" of strings, resulting in a terse
way to repeat a particular string.
This can have unintended side effects when dealing with mixed data (e.g.
after parsing data that is not all numbers).
Furthermore as we frequently fall-back to strings while parsing source
code, this introduced a runaway edge case in const evaluation (#10212)
Work for #10233
## Details
- Remove python-like string multiplication.
- Workaround for indentation
- This should probably be addressed with a purpose built command
- Remove special const-eval error test
# User-Facing Changes
**Major breaking change!**
`"string" * 42` will stop working. (This was used for example in the
stdlib)
We should bless a good alternative before landing this
---------
Co-authored-by: JT <547158+jntrnr@users.noreply.github.com>
# Description
The pythonism that multiplying a scalar integer with a list results in a
repeated concatenation of the list, is ambiguous with other possible
interpretations and thus actively harmful to clear semantics in nushell.
Another possible reading of this scalar/vector product would be trying
to perform elementwise multiplication with the scalar.
Before we bless this alternative as a more reasonable design the best
course of action is to remove this pythonism.
Work related to #10233
# User-Facing Changes
Breaking change as this turns `int * list` or `list * int` into hard
errors.
# Tests + Formatting
Remove the associated test
# Description
The working directory doesn't have to be set for those tests (or would
be the default anyways). When appropriate also remove calls to the
`pipeline()` function. In most places kept the diff minimal and only
removed the superfluous part to not pollute the blame view. With simpler
tests also simplified things to make them more readable overall (this
included removal of the raw string literal).
Work for #8670
# Description
As title, I found this feature is useful to me too :)
Closes: #8039
# User-Facing Changes
```
❯ 3 * "ab"
ababab
❯ 3 * [1 2 3]
╭───┬───╮
│ 0 │ 1 │
│ 1 │ 2 │
│ 2 │ 3 │
│ 3 │ 1 │
│ 4 │ 2 │
│ 5 │ 3 │
│ 6 │ 1 │
│ 7 │ 2 │
│ 8 │ 3 │
╰───┴───╯
```
# 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.
This PR makes `++` (the append operator) work with strings and binary
values. Can now do things like:
```bash
〉"a" ++ "b"
ab
〉0x[01 02] ++ 0x[03]
Length: 3 (0x3) bytes | printable whitespace ascii_other non_ascii
00000000: 01 02 03 •••
```
Closes#8015.
Reasoning:
Most missing math commands are implemented with #7258.
The `meval` crate itself declares that it doesn't strive to stringent
standards (https://docs.rs/meval/latest/meval/#related-projects).
For example no particular special casing or transformations are
performed to ensure numerical stability. It uses the same rust `std`
library functions we use or have access to (and `f64`).
While the command call syntax in nushell may be a bit more verbose,
having a single source of truth and common commands is beneficial.
Furthermore the `math` commands can themselves implement broadcasting
over lists (or table columns).
Closes#7073
Removed dependencies:
- `meval`
- `nom 1.2.4` (duplicate)
User-Facing Changes:
Scripts using `math eval` will break.
We remove a further `eval` like behavior to get results through runtime evaluation (albeit limited in scope)
Tests:
- Updated tests that internally used `math eval`.
- Removed one test that primarily used `math eval` to obtain a result from `str join`
# Description
Adds improved errors for when a user uses a bashism that nu doesn't
support.
fixes#7237
Examples:
```
Error: nu::parser::shell_andand (link)
× The '&&' operator is not supported in Nushell
╭─[entry #1:1:1]
1 │ ls && ls
· ─┬
· ╰── instead of '&&', use ';' or 'and'
╰────
help: use ';' instead of the shell '&&', or 'and' instead of the boolean '&&'
```
```
Error: nu::parser::shell_oror (link)
× The '||' operator is not supported in Nushell
╭─[entry #8:1:1]
1 │ ls || ls
· ─┬
· ╰── instead of '||', use 'try' or 'or'
╰────
help: use 'try' instead of the shell '||', or 'or' instead of the boolean '||'
```
```
Error: nu::parser::shell_err (link)
× The '2>' shell operation is 'err>' in Nushell.
╭─[entry #9:1:1]
1 │ foo 2> bar.txt
· ─┬
· ╰── use 'err>' instead of '2>' in Nushell
╰────
```
```
Error: nu::parser::shell_outerr (link)
× The '2>&1' shell operation is 'out+err>' in Nushell.
╭─[entry #10:1:1]
1 │ foo 2>&1 bar.txt
· ──┬─
· ╰── use 'out+err>' instead of '2>&1' in Nushell
╰────
help: Nushell redirection will write all of stdout before stderr.
```
# User-Facing Changes
**BREAKING CHANGES**
This removes the `&&` and `||` operators. We previously supported by
`&&`/`and` and `||`/`or`. With this change, only `and` and `or` are
valid boolean operators.
# 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.
* expand durations to include month, year, decade
* remove commented out fn
* oops, found more debug comments
* tweaked tests for the new way, borrowed heavily from chrono-humanize-rs
* clippy
* grammar
* attempts to add `div` math operator
* allows `//` to be used too
* fmt:
* clippy issue
* returns appropriate type
* returns appropriate type 2
* fmt
* ensure consistency; rename to `fdiv`
* Update parser.rs
* Output error when ls into a file without permission
* math sqrt
* added test to check fails when ls into prohibited dir
* fix lint
* math sqrt with tests and doc
* trigger wasm build
* Update filesystem_shell.rs
* Fix Running echo .. starts printing integers forever
* Fixed panic on operations with very large durations
Co-authored-by: Jonathan Turner <jonathandturner@users.noreply.github.com>
* Output error when ls into a file without permission
* math sqrt
* added test to check fails when ls into prohibited dir
* fix lint
* math sqrt with tests and doc
* trigger wasm build
* Update filesystem_shell.rs
* always forgetting the linting
* fix clippy complaining
Co-authored-by: Jonathan Turner <jonathandturner@users.noreply.github.com>
* move commands, futures.rs, script.rs, utils
* move over maybe_print_errors
* add nu_command crate references to nu_cli
* in commands.rs open up to pub mod from pub(crate)
* nu-cli, nu-command, and nu tests are now passing
* cargo fmt
* clean up nu-cli/src/prelude.rs
* code cleanup
* for some reason lex.rs was not formatted, may be causing my error
* remove mod completion from lib.rs which was not being used along with quickcheck macros
* add in allow unused imports
* comment out one failing external test; comment out one failing internal test
* revert commenting out failing tests; something else might be going on; someone with a windows machine should check and see what is going on with these failing windows tests
* Update Cargo.toml
Extend the optional features to nu-command
Co-authored-by: Jonathan Turner <jonathandturner@users.noreply.github.com>
