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spacemacs/layers/+lang/ocaml
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Bernhard Schommer 2c193614f7 Ocaml layer init without opam. 
Currently the ocaml layer requires opam in order to work. However
opam is only really required for an easy installation of the
required ocaml binaries. The only place where opam is used
instead is to add the merlin files of the merlin installed
via opam instead of the merlin files from melp.

This commit introduces a fallback if opam is not installed but
ocamlmerlin is installed, since the melpa package of merlin
is already installed through packages.
2017-05-24 12:28:58 +02:00
..
img
config.el Bump year in copyright headers 2017-01-05 23:08:17 -05:00
funcs.el Ocaml layer init without opam. 2017-05-24 12:28:58 +02:00
packages.el syntax-checking: rename function add-flycheck-hook to enable-flycheck 2017-03-19 12:40:36 -04:00
README.org update docs to the new toc-org format 2017-05-22 18:35:37 +03:00

README.org

Ocaml layer

/TakeV/spacemacs/media/commit/484a99dad06c6bc466d9a479eb5f8ec9f0c95613/layers/+lang/ocaml/img/ocaml.png

Description

This is a very basic layer for editing ocaml files.

Features:

  • Syntax highlighting (major-mode) via tuareg-mode
  • Error reporting, completion and type display via merlin
  • auto-completion with company mode via merlin
  • syntax-checking via flycheck-ocaml

Install

Layer

To use this configuration layer, add it to your ~/.spacemacs. You will need to add ocaml to the existing dotspacemacs-configuration-layers list in this file.

OPAM packages

This layer requires some opam packages:

  • merlin for auto-completion
  • utop
  • ocp-indent

To install them, use the following command:

  opam install merlin utop ocp-indent

Make sure opam is initialized and configured.

  opam init
  opam config setup -a

Key Bindings

Key Binding Description
SPC m = Indent buffer.
SPC m c c Compile
SPC m c p Check .merlin for errors
SPC m c r Refresh changed .cmis in merlin
SPC m e C Check for errors in current buffer
SPC m e n Jump to next error
SPC m e N Jump back to previous error
SPC m g a Switch ML <-> MLI
SPC m g b Go back to the last position where the user did a locate
SPC m g g Locate the identifier under point (same window)
SPC m g G Locate the identifier under point (different window)
SPC m g o List occurrences for identifier under point
SPC m g l Prompt for identifier and locate
SPC m g i Prompt for module name and switch to ML file
SPC m g I Prompt for module name and switch to MLI file
SPC m h h Document the identifier under point
SPC m h t Highlight identifier under cursor and print its type
SPC m h T Prompt for expression and show its type
SPC m r d Case analyze the current enclosing

REPL (utop)

Key Binding Description
SPC m s b Send buffer to the REPL
SPC m s B Send buffer to the REPL and switch to the REPL in insert state
SPC m s i Start a REPL
SPC m s p Send phrase to the REPL
SPC m s P Send phrase to the REPL and switch to the REPL in insert state
SPC m s r Send region to the REPL
SPC m s R Send region to the REPL and switch to the REPL in insert state
C-j (in REPL) next item in history
C-k (in REPL) previous item in history

TODOS

TODO Add more proper spacemacs key-bindings for basic merlin tasks

TODO Add proper keybindings for ocamldebug

TODO Add more keybindings for tuareg-mode