Porting commands to engine-q list

[stormasm]

Updated on January 14, 2022

We are getting closer thanks to everyone's help !

Instead of commenting on this issue, please go to nushell/nushell#4356

Engine-q will become Nushell's new parsing and evaluation engine in the future. As part of this, we'll port the existing Nushell commands into Engine-q. Much of this porting can be done mechanically, as while the two systems differ, they are similar enough that many commands can be ported following the steps below.

You can sign up to help out porting a command by commenting on this issue.

Our preference when sending us a Pull Request (PR) is to do one command at a time. It makes it a lot easier for us to review the code as well as making the merge conflicts easier to figure out...

Note: Instructions on how to port these commands from Nushell to Engine-q are below the list.

name	sub	category	completed	notes
alias		core	done
all?			done	@arthur-targaryen
ansi			done	@matthewauld
ansi	gradient		done	@matthewauld
ansi	strip		done	@matthewauld
any?			done	@arthur-targaryen
append		filters	done	@stormasm
autoenv				@jntrnr
autoenv	trust			@jntrnr
autoenv	untrust			@jntrnr
autoview			done	@jntrnr - mostly built into table now
benchmark		system	done
build-string		strings	done
cal			done	@onthebridgetonowhere
cd		filesystem	almost done	missing cd -
char			done	@matthewauld
chart
clear			done	@Scorpil
collect			done
compact			done	@matthewauld
cp		filesystem	done
dataframe			done	@elferherrera
date			done	@onthebridgetonowhere
date	format		done	@onthebridgetonowhere
date	humanize		done	@onthebridgetonowhere
date	list-timezone		done	@onthebridgetonowhere
date	now		done	@onthebridgetonowhere
date	to-table		done	@onthebridgetonowhere
date	to-timezone		done	@onthebridgetonowhere
debug			done
def		core	done
default				@matthewauld
describe			done
do		core	done
drop		filters	done	@stormasm
drop	column	filters	done	@stormasm
drop	nth	filters	done	@stormasm
du				@Scorpil
each		filters	done
each	group	filters
each	window	filters
echo		core	done	@aslynatilla
empty?			done	@onthebridgetonowhere
enter			done	@jntrnr
every			done	@pantonshire
exec				@Scorpil
exit			done	@jntrnr
fetch			done	@onthebridgetonowhere
find				@arthur-targaryen
first		filters	done	@onthebridgetonowhere. Basic support in. Binary not yet supported
flatten			done	@onthebridgetonowhere
for		core	done
format		strings	done	@aslynatilla
format	filesize
from		formats	done
from	csv	formats	done	@jntrnr
from	eml	formats	done	@luccasmmg
from	ics	formats	done	@luccasmmg
from	ini	formats	done	@luccasmmg
from	json	formats	done
from	ods	formats	done	@luccasmmg
from	ssv	formats	done	@luccasmmg
from	toml	formats	done	@luccasmmg
from	tsv	formats	done	@jntrnr
from	url	formats	done	@luccasmmg
from	vcf	formats	done	@luccasmmg
from	xlsx	formats	done	@luccasmmg
from	xml	formats	done	@luccasmmg
from	yaml	formats	done	@luccasmmg
from	yml	formats	done	@luccasmmg
g			done
get		filters	done
group-by				@andrasio
group-by	date
hash			done	@CBenoit
hash	base64			@CBenoit
hash	md5		done	@CBenoit
hash	sha256		done	@CBenoit
headers
help		core	mostly done	Still needs syntax highlighting
histogram
history
if		core	done
ignore			done	@hustcer
insert
into		conversions	done
into	bool	conversions	done
into	binary	conversions	done
into	column_path	conversions
into	datetime	conversions	done
into	decimal	conversions	done
into	filesize	conversions	done
into	int	conversions	done
into	path	conversions	done	Done? No longer necessary
into	string	conversions	done	@onthebridgetonowhere
keep	until		done	@arthur-targaryen
keep	while		done	@arthur-targaryen
kill			done	@Scorpil
last		filters	done	@stormasm
length		filters	done
let		core	done
let-env			done
lines		filters	done
load-env
ls		filesystem	done	@jntrnr
math			done	@luccasmmg is working on all of the math commands below
math	abs		done	@luccasmmg
math	avg		done	@luccasmmg
math	ceil		done
math	eval		done
math	floor		done
math	max		done	@luccasmmg
math	median		done
math	min		done	@luccasmmg
math	mode		done
math	product		done
math	round		done
math	sqrt		done
math	stddev		done
math	sum		done
math	variance		done	@luccasmmg is working on all of the math commands above here
merge
mkdir		filesystem	done
move
mv		filesystem	done
n			done	@jntrnr
nth		filters	done	@stormasm
open			done	@jntrnr
p			done	@jntrnr
parse			done	@CBenoit
path			done	@LiHRaM
path	basename		done	@LiHRaM
path	dirname		done	@LiHRaM
path	exists		done	@LiHRaM
path	expand		done	@LiHRaM
path	join		done	@LiHRaM
path	parse		done	@LiHRaM
path	relative		done	@LiHRaM
path	split		done	@LiHRaM
path	type		done	@LiHRaM
pathvar			done	@kubouch switched e-q to using Value instead of String for env vars
pivot
post
prepend		filters	done	@stormasm
ps			done
pwd				@Scorpil
random			done	@jaeheonji
random	bool		done	@jaeheonji
random	chars		done	@jaeheonji
random	decimal		done	@jaeheonji
random	dice		done	@jaeheonji
random	integer		done	@jaeheonji
random	uuid		done	@jaeheonji
range		filters	done	@stormasm
reduce				@kubouch
reject		filters	done	@stormasm
rename		filters
reverse		filters	done	@stormasm
rm			done
roll
roll	column
roll	up
rotate
rotate	counter-clockwise
save
select		filters	mostly done	Still needs to have latest changes ported from nushell
seq				@nibon7
seq	date		done
shells			done	@jntrnr
shuffle		filters	done	@stormasm
size			done
skip			done	@arthur-targaryen
skip	until		done	@arthur-targaryen
skip	while		done	@arthur-targaryen
sleep			done	@Scorpil
sort-by		filters		@stormasm
source			mostly done	currently a bit buggy, needs some testing
split			done
split	chars		done
split	column		done
split	row		done
split-by				@andrasio
str			done	@onthebridgetonowhere
str	camel-case		done	@onthebridgetonowhere
str	capitalize		done	@onthebridgetonowhere
str	collect		done	@onthebridgetonowhere
str	contains		done	@onthebridgetonowhere
str	downcase		done	@onthebridgetonowhere
str	ends-with		done	@onthebridgetonowhere
str	find-replace		done	@onthebridgetonowhere
str	index-of		done	@onthebridgetonowhere
str	kebab-case		done	@onthebridgetonowhere
str	length		done	@onthebridgetonowhere
str	lpad		done	@onthebridgetonowhere
str	pascal-case		done	@onthebridgetonowhere
str	reverse		done	@onthebridgetonowhere
str	rpad		done	@onthebridgetonowhere
str	screaming-snake-case		done	@onthebridgetonowhere
str	snake-case		done	@onthebridgetonowhere
str	starts-with		done	@onthebridgetonowhere
str	substring		done	@onthebridgetonowhere
str	trim		done	@onthebridgetonowhere
str	upcase		done	@onthebridgetonowhere
sys		system	done
table		viewers	done	output and theming now available
tags			done	Ported as metadata
to			done
to	csv		done	@luccasmmg
to	html		done	@luccasmmg
to	json		done	@jntrnr
to	md		done	@luccasmmg
to	toml		done	@luccasmmg
to	tsv		done	@luccasmmg
to	url		done	@luccasmmg
to	xml		done	@luccasmmg
to	yaml		done	@luccasmmg
touch		filesystem	done
tutor
unalias
uniq			done	@onthebridgetonowhere
unlet-env			done	now part of hide
update			done
update	cells
url			done	@jaeheonji
url	host		done	@jaeheonji
url	path		done	@jaeheonji
url	query		done	@jaeheonji
url	scheme		done	@jaeheonji
version			done	@onthebridgetonowhere
where		filters	done
which				@Scorpil
with-env			done	@jntrnr
wrap		filters	done
zip			done
$nu			mostly done	@jntrnr
$scope			done	this is done as a simple implementation, but feel free to improve it

Missing features/commands

• command [autoenv trust] with parameter [dir] is missing in eq
• command [autoenv trust] with parameter [quiet] is missing in eq
• command [autoenv untrust] with parameter [dir] is missing in eq
• command [autoenv untrust] with parameter [quiet] is missing in eq
• command [benchmark] with parameter [passthrough] is missing in eq
• command [binaryview] with parameter [bytes] is missing in eq <-- not porting
• command [binaryview] with parameter [lores] is missing in eq <-- not porting
• command [binaryview] with parameter [skip] is missing in eq <-- not porting
• command [cd] with parameter [-] is missing in eq
• command [chart bar] with parameter [columns] is missing in eq
• command [chart bar] with parameter [format] is missing in eq
• command [chart bar] with parameter [acc] is missing in eq
• command [chart bar] with parameter [use] is missing in eq
• command [chart line] with parameter [columns] is missing in eq
• command [chart line] with parameter [format] is missing in eq
• command [chart line] with parameter [acc] is missing in eq
• command [chart line] with parameter [use] is missing in eq
• command [compact] with parameter [rest] is missing in eq
• command [dfr drop-duplicates] with parameter [subset] is missing in eq
• command [dfr drop-duplicates] with parameter [maintain] is missing in eq
• command [dfr select] with parameter [rows] is missing in eq <--- duplicated with get
• command [dfr select] with parameter [rest] is missing in eq <--- duplicated with get
• command [dfr unique] with parameter [period] is missing in eq <--- parameter doesnt exit
• command [dfr show] with parameter [tail] is missing in eq <--- changed to to-nu
• command [dfr show] with parameter [n_rows] is missing in eq <--- changed to to-nu
• command [dfr where] with parameter [condition] is missing in eq <--- better logic with masks (redundant)
• command [date format] with parameter [table] is missing in eq
• command [date humanize] with parameter [table] is missing in eq
• command [default] with parameter [column name] is missing in eq
• command [default] with parameter [column value] is missing in eq
• command [detect columns] with parameter [no_headers] is missing in eq
• command [detect columns] with parameter [skip] is missing in eq
• command [do] with parameter [ignore-errors] is missing in eq
• command [du] with parameter [path] is missing in eq
• command [du] with parameter [min-size] is missing in eq
• command [du] with parameter [all] is missing in eq
• command [du] with parameter [deref] is missing in eq
• command [du] with parameter [exclude] is missing in eq
• command [du] with parameter [max-depth] is missing in eq
• command [each group] with parameter [group_size] is missing in eq
• command [each group] with parameter [block] is missing in eq
• command [each window] with parameter [window_size] is missing in eq
• command [each window] with parameter [block] is missing in eq
• command [each window] with parameter [stride] is missing in eq
• command [empty?] with parameter [rest] is missing in eq
• command [empty?] with parameter [block] is missing in eq
• command [enter] with parameter [location] is missing in eq
• command [enter] with parameter [encoding] is missing in eq
• command [every] with parameter [stride] is missing in eq
• command [every] with parameter [skip] is missing in eq
• command [exec] with parameter [command] is missing in eq
• command [exec] with parameter [rest] is missing in eq
• command [exit] with parameter [code] is missing in eq
• command [exit] with parameter [now] is missing in eq
• command [fetch] with parameter [URL] is missing in eq
• command [fetch] with parameter [raw] is missing in eq
• command [fetch] with parameter [user] is missing in eq
• command [fetch] with parameter [password] is missing in eq
• command [find] with parameter [rest] is missing in eq
• command [for] with parameter [numbered] is missing in eq
• command [format filesize] with parameter [field] is missing in eq
• command [format filesize] with parameter [format value] is missing in eq
• command [from sqlite] with parameter [tables] is missing in eq
• command [from tsv] with parameter [noheaders] is missing in eq
• command [from xlsx] with parameter [noheaders] is missing in eq
• command [g] with parameter [index] is missing in eq
• command [get] with parameter [rest] is missing in eq
• command [group-by] with parameter [grouper] is missing in eq
• command [group-by date] with parameter [column_name] is missing in eq
• command [group-by date] with parameter [format] is missing in eq
• command [hash] with parameter [rest] is missing in eq
• command [hash base64] with parameter [rest] is missing in eq
• command [hash base64] with parameter [decode] is missing in eq
• command [hash base64] with parameter [character_set] is missing in eq
• command [hash base64] with parameter [encode] is missing in eq
• command [histogram] with parameter [rest] is missing in eq
• command [histogram] with parameter [use] is missing in eq
• command [history] with parameter [clear] is missing in eq
• command [inc] with parameter [rest] is missing in eq
• command [insert] with parameter [column] is missing in eq <-- replaced with update
• command [insert] with parameter [value] is missing in eq <-- replaced with update
• command [into column-path] with parameter [rest] is missing in eq
• command [keep] with parameter [rows] is missing in eq
• command [length] with parameter [column] is missing in eq
• command [let] with parameter [name] is missing in eq
• command [load-env] with parameter [environ] is missing in eq
• command [ls] with parameter [path] is missing in eq
• command [ls] with parameter [du] is missing in eq
• command [ls] with parameter [all] is missing in eq
• command [ls] with parameter [long] is missing in eq
• command [ls] with parameter [short-names] is missing in eq
• command [match] with parameter [member] is missing in eq
• command [match] with parameter [regex] is missing in eq
• command [match] with parameter [invert] is missing in eq
• command [match] with parameter [insensitive] is missing in eq
• command [match] with parameter [multiline] is missing in eq
• command [match] with parameter [dotall] is missing in eq
• command [merge] with parameter [block] is missing in eq
• command [move] with parameter [rest] is missing in eq
• command [move] with parameter [before] is missing in eq
• command [move] with parameter [after] is missing in eq
• command [nu plugin] with parameter [load] is missing in eq
• command [open] with parameter [path] is missing in eq
• command [open] with parameter [encoding] is missing in eq <-- moved to decode command
• command [open] with parameter [raw] is missing in eq
• command [pivot] with parameter [rest] is missing in eq <-- renamed transpose
• command [pivot] with parameter [ignore-titles] is missing in eq <-- renamed transpose
• command [pivot] with parameter [header-row] is missing in eq <-- renamed transpose
• command [post] with parameter [path] is missing in eq
• command [post] with parameter [body] is missing in eq
• command [post] with parameter [raw] is missing in eq
• command [post] with parameter [user] is missing in eq
• command [post] with parameter [password] is missing in eq
• command [post] with parameter [content-type] is missing in eq
• command [post] with parameter [content-length] is missing in eq
• command [query json] with parameter [query] is missing in eq
• command [reduce] with parameter [block] is missing in eq
• command [reduce] with parameter [numbered] is missing in eq
• command [reduce] with parameter [fold] is missing in eq
• command [rename] with parameter [column_name] is missing in eq
• command [rename] with parameter [rest] is missing in eq
• command [roll] with parameter [by] is missing in eq
• command [roll column] with parameter [by] is missing in eq
• command [roll column] with parameter [cells-only] is missing in eq
• command [roll column] with parameter [opposite] is missing in eq
• command [roll up] with parameter [by] is missing in eq
• command [rotate] with parameter [rest] is missing in eq
• command [rotate counter-clockwise] with parameter [rest] is missing in eq
• command [s3] with parameter [RESOURCE] is missing in eq
• command [s3] with parameter [raw] is missing in eq
• command [s3] with parameter [endpoint] is missing in eq
• command [s3] with parameter [access_key] is missing in eq
• command [s3] with parameter [secret_key] is missing in eq
• command [s3] with parameter [region] is missing in eq
• command [save] with parameter [path] is missing in eq
• command [save] with parameter [append] is missing in eq
• command [save] with parameter [raw] is missing in eq
• command [selector] with parameter [inspect] is missing in eq
• command [selector] with parameter [query] is missing in eq
• command [selector] with parameter [as_html] is missing in eq
• command [selector] with parameter [attribute] is missing in eq
• command [selector] with parameter [as_table] is missing in eq
• command [seq] with parameter [rest] is missing in eq
• command [seq] with parameter [widths] is missing in eq
• command [seq] with parameter [separator] is missing in eq
• command [seq] with parameter [terminator] is missing in eq
• command [seq date] with parameter [reverse] is missing in eq
• command [seq date] with parameter [separator] is missing in eq
• command [seq date] with parameter [output-format] is missing in eq
• command [seq date] with parameter [input-format] is missing in eq
• command [seq date] with parameter [begin-date] is missing in eq
• command [seq date] with parameter [end-date] is missing in eq
• command [seq date] with parameter [increment] is missing in eq
• command [seq date] with parameter [days] is missing in eq
• command [sort-by] with parameter [rest] is missing in eq
• command [sort-by] with parameter [reverse] is missing in eq
• command [sort-by] with parameter [insensitive] is missing in eq
• command [split-by] with parameter [column_name] is missing in eq
• command [start] with parameter [rest] is missing in eq
• command [start] with parameter [application] is missing in eq
• command [str] with parameter [rest] is missing in eq
• command [table] with parameter [start_number] is missing in eq
• command [term size] with parameter [tall] is missing in eq <-- tall renamed rows
• command [term size] with parameter [wide] is missing in eq <-- wide renamed columns
• command [to json] with parameter [pretty] is missing in eq <-- it is pretty by default now - non-pretty use json -r
• command [tutor] with parameter [search] is missing in eq
• command [tutor] with parameter [find] is missing in eq
• command [unalias] with parameter [name] is missing in eq
• command [update cells] with parameter [block] is missing in eq
• command [update cells] with parameter [columns] is missing in eq
• command [which] with parameter [application] is missing in eq
• command [which] with parameter [rest] is missing in eq
• command [which] with parameter [all] is missing in eq
• command [xpath] with parameter [query] is missing in eq
• command [zip] with parameter [block] is missing in eq

Porting WholeStreamCommand (nushell) to Command (engine-q)

All commands have the standard boilerplate methods including

• name
• usage
• signature
• run

Name and usage is fairly obvious

Signature

The signature can have required parameters, optional parameters, or no parameters. An example of a command with no parameters is the
command length.

  fn signature(&self) -> nu_protocol::Signature {
      Signature::build("length").category(Category::Filters)
 }

Please be sure and add in the Category of the command you are porting so that our documentation and filtering system picks it up

Commands with optional and required parts should work similarly between Nushell and Engine-q.

Run

Nushell:

fn run(&self, args: CommandArgs) -> Result<OutputStream, ShellError> { ... }

Engine-q:

    fn run(
        &self,
        engine_state: &EngineState,
        stack: &mut Stack,
        call: &Call,
        input: PipelineData,
    ) -> Result<nu_protocol::PipelineData, nu_protocol::ShellError> {

Run is where all of the action happens when porting over a command from nushell or writing a new command. You'll notice that Engine-q uses a much more expanded form of the arguments when compared to Nushell's more compact form. This allows for clear access to the components of running a command:

• the state of the declarations known to the engines (EngineState)
• the stack of values known at eval time (Stack)
• the call to the command itself (including its flags and arguments)
• the input to that command (the value being piped into it).

EngineState

The EngineState gives access to the global state of the engine, which currently is mostly the declarations that need to be known in order to run any code in the system.

Stack

The stack is a snapshot of the values that the current block can see. This Stack is narrowed using closure capture to only the variables the block can see.

Call

pub struct Call {
    /// identifier of the declaration to call
    pub decl_id: DeclId,
    pub head: Span,
    pub positional: Vec<Expression>,
    pub named: Vec<(String, Option<Expression>)>,
}

The call represents the call itself, including:

• the unique identifier for what declaration this call will invoke (the decl_id)
• the location of this call in the source code (the head)
• the positional arguments (positional)
• the named or flag arguments (named)

Rather than reaching into this structure directly, it's often better to access the contents of this call via the helper methods that can evaluate the unevaluated arguments for you:

// Example of getting a single required positional argument as a string with an associated span
let separator: Spanned<String> = call.req(context, 0)?;

The type of the variable allows call.req(...)? to invoke the right converter for you, failing with a type mismatch error if the caller has passed the wrong type at runtime. We use the same technique in Nushell, so this should port similarly with the change of having context as a new argument to the helper methods.

PipelineData

In Nushell, input and output were handled as streams. Commands often just applied themselves as calls onto these streams. The stream concept was helpful to get going, but also shows its limitations. For example, how do you represent a single value in the stream? What's the difference between a single item list and a single item? When should we take a list and flatten it into the stream? Ambiguities like this were fairly common in practice with implementing Nushell commands.

With Engine-q, we separate the various data types into specific cases. Single value outputs are now just a single value case of Value. Streams are handled separately from Value, and both form a PipelineData enum. This works for both input and output to commands.

To port from Nushell to Engine-q, for commands that call .map or .flat_map on the input stream, we've implemented helpers on Value that you can call with the same name. You can also call into_iter to get a full iterator. Additionalyl, you can also match on PipelineData yourself and handle the different cases.

Adding your commands

Add your newly ported commands to the crates/nu-command/src/default_context.rs file that is in the nu-command subcrate. There, you'll see a list of the commands that will be loaded in the default context. Adding your command here will make it visible when you start up Nu.

Tests and subcommands

If you add a new top-level command with subcommands, you'll need to add the top-level command to the group of default commands in the test context. You'll find this list in the crates/nu-command/src/example_test.rs file.

References

Core Engine-q data structures

From 12/13/2021 Discord

JT Note on Most important commands still needed to be ported

[luccasmmg]

I can do all the math commands no problem

[stormasm]

@luccasmmg sounds great ! thank you.... over time as you submit the PRs please reference this issue and then I will go ahead and mark it done ---- I will sign you up for the math commands now ---- so folks will know you are working on them...

[vitvakatu]

Hi, I want to try all of config commands

[stormasm]

@vitvakatu Thank you ! I signed you up for all of the config commands...

[onthebridgetonowhere]

I'd love to work on all the date commands!

[sophiajt]

@vitvakatu - engine-q config works a bit differently than Nushell, but you might be able to still port much of the functionality. Rather than using a toml file, engine-q uses a nushell script that runs in startup.

@onthebridgetonowhere - sounds good!

[onthebridgetonowhere]

Could I have a go at first as well? Thanks!

[sophiajt]

@onthebridgetonowhere - it's yours

[aslynatilla]

May I try and port echo and format?

[sophiajt]

@aslynatilla - they're yours. echo should be simpler in e-q than it was in Nushell as each does all the iteration now. You should just be able to send on the PipelineData you get

[vitvakatu]

@jntrnr yep, I've noticed this after I decided to work on config :) I think I will be able to port it anyway. Thank you!

[onthebridgetonowhere]

Could I also have into string from conversions? Thanks!

[LiHRaM]

Hi, please sign me up for the path commands, if possible. :)

[sophiajt]

@onthebridgetonowhere - yup! it's yours

@LiHRaM - definitely. they're yours

[onthebridgetonowhere]

Working on a few str cases:

• camel-case
• kebab-case
• pascal-case
• screaming-snake-case
• snake-case

[luccasmmg]

Can i be assigned the from yaml command?

[sophiajt]

@luccasmmg - yup, it's yours!

[onthebridgetonowhere]

Worked on the str capitalize command #317

[onthebridgetonowhere]

@jntrnr - I am planning to do all the str commands, but it will take me like a week or so (a bit every day). Unless, someone else wants to work on them and is faster :-)
We can also mark into string as done, you added the cell path support to it.

[sophiajt]

@onthebridgetonowhere - cool I'll mark those.

[stormasm]

@matthewauld thank you for all of your effort... You are now signed up for compact and default... Enjoy !

[matthewauld]

No problem! Really like nushell, figure this is a good way to learn the internals!

[onthebridgetonowhere]

I'm working on porting fetch :-)

[sophiajt]

@onthebridgetonowhere - nice! if you haven't looked yet, you should be able to use some of the logic from the new open command

[onthebridgetonowhere]

@onthebridgetonowhere - nice! if you haven't looked yet, you should be able to use some of the logic from the new open command

Great suggestion, thanks JT.

[pantonshire]

Could I have a go at the every command?

[fdncred]

sure @pantonshire, have at it.

[fdncred]

looking for seq, seq-date, and shells for some scripts. any takers?

[sophiajt]

@fdncred - I'm signed up for shells since it needs some of the environment work. But folks should definitely feel free to take seq and seq-date

[kubouch]

I can do reduce. I need it for my script haha 😀

[sophiajt]

@kubouch it's yours

[onthebridgetonowhere]

I am thinking I'll give chart a try :-)

[sophiajt]

@onthebridgetonowhere - it's yours

[kubouch]

I am thinking I'll give chart a try :-)

Currently, chart works like a histogram. I'd personally like to see it decoupled: you'll give it x,y data points and it will display them, nothing more. We have the histogram command in Nushell to compute histograms so if you want to display a histogram, you'd just pipe it to chart. Having a generic chart command for plotting any x,y data would make it more useful and versatile, IMO, and might be also easier to implement.

Maybe @andrasio might have some comments :-) .

[nibon7]

I'm trying to port seq.

[fdncred]

thanks @nibon7 it's yours.

[onthebridgetonowhere]

I am thinking I'll give chart a try :-)

Currently, chart works like a histogram. I'd personally like to see it decoupled: you'll give it x,y data points and it will display them, nothing more. We have the histogram command in Nushell to compute histograms so if you want to display a histogram, you'd just pipe it to chart. Having a generic chart command for plotting any x,y data would make it more useful and versatile, IMO, and might be also easier to implement.

Maybe @andrasio might have some comments :-) .

We can do that, sure! I will @ you once there's a PR with the changes.

[onthebridgetonowhere]

I am unable to work on the chart command at the moment, so if anyone else wants to have a go at it, please go ahead!

[fdncred]

I am unable to work on the chart command at the moment, so if anyone else wants to have a go at it, please go ahead!

Thanks @onthebridgetonowhere - i'll unmark you. we sure appreciate all your contributions!

[sophiajt]

Closing this in favour of: nushell/nushell#4356