[Caml-list] Gnu readline functionality in ocaml?

[Caml-list] Gnu readline functionality in ocaml?

[Helmut Brandl]

Hello list,

is there a possibility to write an interactive console program in ocaml using a functionality like gnu’s readline i.e. allowing the user to press e.g. arrow up to get the previous line?

Regards
Helmut

Re: [Caml-list] Gnu readline functionality in ocaml?

[Martin Riener]

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Hello Helmut,

You are probably looking for utop ( https://opam.ocaml.org/packages/utop/ )
which also has autocompletion and other nice features. Alternatively, you can
use rlwrap ( https://linux.die.net/man/1/rlwrap ) to wrap any non-readline
program into readline.

cheers,
Martin

On 7/2/19 6:48 PM, Helmut Brandl wrote:
> Hello list,
> 
> is there a possibility to write an interactive console program in ocaml using a functionality like gnu’s readline i.e. allowing the user to press e.g. arrow up to get the previous line?
> 
> Regards
> Helmut
> 


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Re: [Caml-list] Gnu readline functionality in ocaml?

[Simon Cruanes]

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There are also self-contained linenoise bindings (`opam info linenoise`)
that are reasonably simple and lightweight.

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Re: [Caml-list] Gnu readline functionality in ocaml?

[Helmut Brandl]

Thanks for the answers. It seems that “line noise” is exactly what I need.



> On Jul 2, 2019, at 12:02, Simon Cruanes <simon.cruanes.2007@m4x.org> wrote:
> 
> There are also self-contained linenoise bindings (`opam info linenoise`)
> that are reasonably simple and lightweight.

Re: [Caml-list] Gnu readline functionality in ocaml?

[rixed]

This is unrelated to OCaml, but are you aware of tools such as rlwrap ?

Re: [Caml-list] Gnu readline functionality in ocaml?

[SP]

I had a look for you on opam.ocaml.org.

I found [linenoise][1]. Also looked at [utop's code][2] and it seems to use [lambda-term][3][4].


[1]: https://opam.ocaml.org/packages/linenoise
[2]: https://github.com/ocaml-community/utop/blob/master/src/lib/uTop_complete.ml
[3]: https://opam.ocaml.org/packages/lambda-term
[4]: https://github.com/ocaml-community/lambda-term/blob/master/src/lTerm_read_line.mli


Hope this helps.

Re: [Caml-list] Gnu readline functionality in ocaml?

[Francois Berenger]

On 03/07/2019 18:41, SP wrote:
> I had a look for you on opam.ocaml.org.
> 
> I found [linenoise][1]. Also looked at [utop's code][2] and it seems
> to use [lambda-term][3][4].

lambda-term uses zed, which from the opam description looks like
the library providing the readline-like functionality.

https://github.com/ocaml-community/zed

> [1]: https://opam.ocaml.org/packages/linenoise
> [2]:
> https://github.com/ocaml-community/utop/blob/master/src/lib/uTop_complete.ml
> [3]: https://opam.ocaml.org/packages/lambda-term
> [4]:
> https://github.com/ocaml-community/lambda-term/blob/master/src/lTerm_read_line.mli
> 
> 
> Hope this helps.

Re: [Caml-list] Gnu readline functionality in ocaml?

[Jeremie Dimino]

More precisely, zed implements the part of text edition that is
completely independent of the actual user interface. Lambda-term on
the other hand is a comprehensive terminal library that among other
things relies on zed to provide readline-like functionality and text
edition widgets by "connecting" zed to the terminal operations. But
for instance, it would be straightforward to create a simple text
editor using zed and notty.

On Thu, Jul 4, 2019 at 2:05 AM Francois Berenger <mlists@ligand.eu> wrote:
>
> On 03/07/2019 18:41, SP wrote:
> > I had a look for you on opam.ocaml.org.
> >
> > I found [linenoise][1]. Also looked at [utop's code][2] and it seems
> > to use [lambda-term][3][4].
>
> lambda-term uses zed, which from the opam description looks like
> the library providing the readline-like functionality.
>
> https://github.com/ocaml-community/zed
>
> > [1]: https://opam.ocaml.org/packages/linenoise
> > [2]:
> > https://github.com/ocaml-community/utop/blob/master/src/lib/uTop_complete.ml
> > [3]: https://opam.ocaml.org/packages/lambda-term
> > [4]:
> > https://github.com/ocaml-community/lambda-term/blob/master/src/lTerm_read_line.mli
> >
> >
> > Hope this helps.



-- 
Jeremie