Coquille

Coquille is a vim plugin aiming to bring the interactivity of CoqIDE into your favorite editor.

Installation

This repository is meant to be used as a pathogen bundle. If you don't already use pathogen, I strongly recommend that you start right now.

As everybody knows, vim is a wonderful editor which offers no way for a plugin to track modifications on a buffer. For that reason Coquille depends on a set of heuristicts collected in vimbufsync to detect modifications in the buffer. You will need to make this plugin available in your runtime path (it can be installed as a pathogen bundle as well) if you want Coquille to work.

Once that is done, installing Coquille is just as simple as doing :

cd ~/.vim/bundle
git clone https://github.com/trefis/coquille.git

Not that by default, you will be in the pathogen-bundle branch, which also ships Vincent Aravantinos syntax and indent scripts for Coq, as well as an ftdetect script. If you already have those in your vim config, then just switch to the master branch.

Getting started

When a coq type file is loaded (anything with a .v extension), these commands become available:

• CoqLaunch {coqtop arg} ..
• Coq {vernacular command} ..
• CoqNext
• CoqToCursor
• CoqUndo
• CoqKill

By default Coquille forces no mapping for these commands, however two sets of mapping are already defined and you can activate them by adding :

" Maps Coquille commands to CoqIDE default key bindings
au FileType coq call coquille#CoqideMapping()

or

" Maps Coquille commands to <F2> (Undo), <F3> (Next), <F4> (ToCursor)
au FileType coq call coquille#FNMapping()

to your .vimrc.

Alternatively you can, of course, define your own.

Starting Coq

Coquille will implicitly start coqtop when any of its commands are run. Coquille will parse the _CoqProject for options to pass to coqtop. This behavior can be disabled by setting g:coquille_append_project_args to 0.

Additional arguments for coqtop can be specified by explicitly starting coqtop using :CoqLaunch.

Multiple files

Coquille supports having multiple coq source files (.v files) open at the same time. The coq source files can be in separate tabs, different windows (splits) within the same tab, or switching between hidden buffers in the same window.

When coquille is first started in a tab, it will create an info panel and a goals panel (split). By default if more source windows are added to the same tab, coquille will reuse the existing info and goals panels for the new source windows. Whenever the active source window is switched, the corresponding info and goals buffers will be displayed in their panels -- hiding the previous info and goals buffers.

Alternatively g:coquilled_shared can be set to 0, which tells coquille to create separate info and goals panels for each coq source window. It can also be changed on a per window basis by setting w:coquille_shared.

Running query commands

You can run an arbitrary query command (that is Check, Print, etc.) by calling :Coq MyCommand foo bar baz. and the result will be displayed in the Infos panel.

Configuration

Note that the color of the "lock zone" is hard coded and might not be pretty in your specific setup (depending on your terminal, colorscheme, etc). To change it, you can overwrite the CheckedByCoq, SentToCoq, CoqError, and CoqWarning highlight groups (:h hi and :h highlight-groups) to colors that works better for you. See coquille.vim for an example.

You can set the following variable to modify Coquille's behavior:

g:coquille_auto_move            Set it to 'true' if you want Coquille to
    (default = 'false')         move your cursor to the end of the lock zone
                                after calls to CoqNext or CoqUndo

g:coquille_shared               Set it to 0 to cause Coquille to create new
    (default = 1)               info and goals panels for each source
                                window in a tab.

g:coquille_append_project_args  When set to non-zero, \_CoqProject is parsed
    (default = 1)               for args to pass to coqtop.

g:coquille_keep_open            Set it to 1 to prevent Coquille from
    (default = 0)               closing the info and goals panels when they
                                are no longer referenced by any coq source
                                windows. This is useful to prevent the
                                window layout from changing when a non-coq
                                source file is edited in the coq source
                                window and the coq source file is not
                                hidden.

Python version

Coquille requires python 2 or python 3 support in vim. If both are available, Coquille will use python 3. Once Coquille uses python 3, that prevents the vim from using python 2 in any other plugins. You can force Coquille to use python 2 by putting :call has('python') in your .vimrc.

Screenshots

Because pictures are always the best sellers :