utop/README

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A universal toplevel for OCaml.
url: https://forge.ocamlcore.org/projects/utop/
* Requirements:
utop depends on the following packages:
* findlib (http://projects.camlcity.org/projects/findlib.html)
* react (http://erratique.ch/software/react)
* lwt (http://ocsigen.org/lwt/)
* camomile (http://camomile.sourceforge.net/)
* zed (http://forge.ocamlcore.org/projects/zed/)
* lambda-term (http://forge.ocamlcore.org/projects/lambda-term/)
Lwt must be compiled with react support, configure it with:
$ ./configure --enable-react
utop also requires OCaml compiler libraries. If you are using
debian, they are available as the package ocaml-compiler-libs, if
you are using godi, they are installed by default. If you installed
ocaml by hand, you can run the script utils/install-compiler-libs.sh.
* Installation:
To compile and install lambda-term just type:
$ ocaml setup.ml -configure
$ ocaml setup.ml -build
$ ocaml setup.ml -install
If you get the development version of utop you must obtain oasis
(http://oasis.forge.ocamlcore.org/).
* Usage:
To use utop, simply run:
$ utop
utop display a bar after the prompt which is used to show possible
completions in real-time. You can navigate in it using Alt+Left and
Alt+Right, and select one completion using Alt+Tab.
* Customization:
To add colors to utop, copy one of the files utoprc-dark or
utoprc-light to ~/.utoprc. utoprc-dark is for terminals with dark
colors (such as white on black) and utoprc-light is for terminals
with light colors (such as black on white).
You can also customize the prompt of utop by setting the reference
UTop.prompt.
* Integration with emacs:
To use utop in emacs, add the following line to your ~/.emacs file:
(autoload 'utop "utop" "Toplevel for OCaml" t)
Then you can run utop by executing the command "utop" in emacs.
* Integration with the tuareg mode:
You can replace the default toplevel used by the tuareg mode by
utop, for that add the following lines to your ~/.emacs file:
(autoload 'utop-tuareg-setup "utop" "Toplevel for OCaml" t)
(add-hook 'tuareg-mode-hook 'utop-tuareg-setup)
* Development:
The last development version of utop can always be found in the
darcs repository hosted at darcs.ocamlcore.org:
$ darcs get http://darcs.ocamlcore.org/repos/utop