spacemacs/layers/+lang/idris
syl20bnr 82fdd9a511 Use evil in holy-mode
Motivation

While disabling Evil in holy-mode makes its implementation shorter and
sounds elegant on the paper, in practice it puts a big burden on the
configuration parts which need to know if Evil is enable or not. This is
a bad separation of concerns and the bunch of fixes that we were forced
to do in the past weeks shows this issue. Those fixes were about
removing the knowledge of the activation of Evil by implementing new
dispatching functions to be used by layers, this is cumbersome and makes
Spacemacs layer configuration more subtle which is not good. There was
additional bad consequences of the removal of Evil state like the
impossibility to use Evil lisp state or iedit states, or we would have
been forced to implement a temporary activation of Evil which is
awkward.

Instead I reintroduce Evil as the central piece of Spacemacs design thus
Evil is now re-enabled in holy-mode. It provides the abstraction we need
to isolate editing styles and be able to grow the Spacemacs
configuration coverage sanely. Layers don't need to check whether the
holy mode is active or not and they don't need to know if Evil is
available (it is always available). We also don't need to write
additional dispatching functions, this is the job of Evil, and I think
it provides everything for this. Ideally configuration layer should be
implemented with only Evil in mind and the holy-mode (and hybrid-mode)
should magically make it work for Emacs style users, for instance we can
freely use `evil-insert-state` anywhere in the code without any guard.

Evil is now even more part of Spacemacs, we can really say that
Spacemacs is Emacs+Evil which is now an indivisible pair. Spacemacs
needed this stable API to continue on the right track.

While these changes should be rather transparent to the user, I'm sorry
for this experimental period, I failed to see all the implications of
such a change, I was just excited about the possibility to make Evil
optional. The reality is that Spacemacs has to embrace it and keep its
strong position on being Emacs+Evil at the core.

Implementation

- insert, motion and normal states are forced to emacs state using an
advice on `evil-insert-state`, `evil-motion-state` and
`evil-normal-state` respectively. These functions can be used freely in
the layer configuration.
- A new general hook `spacemacs-editing-style-hook` allow to hook any
code that need to be configured based on the editing style. Functions
hooked to this hook takes the current style as parameter, this
basically generalize the hook used to setup hjkl navigation bindings.
- ESC has been removed from the emacs state map.
- Revert unneeded changes
  - Revert "evil: enter insert-state only from normal-state"
    commit bdd702dfbe.
  - Revert "avoid being evil in deft with emacs editing style"
    commit f3a16f49ed.

Additional changes

All editing style packages have been moved to a layer called
`spacemacs-editing-styles`

Notes

I did not have time to attack hybrid mode, I should be able to do it
later.
2016-03-13 21:16:55 -04:00
..
img
packages.el Use evil in holy-mode 2016-03-13 21:16:55 -04:00
README.org Update install layer section in REAMDE.org files 2016-01-06 00:21:55 -05:00

Idris layer

/TakeV/spacemacs/media/commit/919a960fc214caf550aa3d6615a0e3c021ee241f/layers/+lang/idris/img/idris.png

Description

This layer adds support for the Idris language.

Install

Layer

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

Idris

Idris can be installed using Haskell's cabal:

cabal install idris

Binaries are also available for some platforms at http://www.idris-lang.org/download/

Key bindings

Shorthands

Several (but not all) of the evil-leader shorthands that idris-mode provides are reproduced under the local leader.

Key Binding Description
SPC m c Case split the pattern variable under point.
SPC m d Create an initial pattern match clause for a type declaration.
SPC m p Attempt to solve a metavariable automatically.
SPC m r Load current buffer into Idris.
SPC m t Get the type for the identifier under point.
SPC m w Add a with block for the pattern-match clause under point.

Interactive editing

Key Binding Description
SPC m i a Attempt to solve a metavariable automatically.
SPC m i c Case split the pattern variable under point.
SPC m i e Extract a metavariable or provisional definition name to an explicit top level definition.
SPC m i m Add missing pattern-match cases to an existing definition.
SPC m i r Refine by name, without recursive proof search.
SPC m i s Create an initial pattern match clause for a type declaration.
SPC m i w Add a with block for the pattern-match clause under point.

Documentation

Key Binding Description
SPC m h a Search the documentation for a string.
SPC m h d Search the documentation for the name under point.
SPC m h s Search the documentation regarding a particular type.
SPC m h t Get the type for the identifier under point.

REPL

Key Binding Description
SPC m s b Load the current buffer into Idris.
SPC m s B Load the current buffer into Idris and switch to REPL in insert state
SPC m s i Start Idris inferior process
SPC m s n Extend the region to be loaded one line at a time.
SPC m s N Extend the region to be loaded one line at a time and switch to REPL in insert state
SPC m s p Contract the region to be loaded one line at a time
SPC m s P Contract the region to be loaded one line at a time and switch to REPL in insert state
SPC m s s Switch to REPL buffer

Active term manipulations

Key Binding Description
SPC m m c Show the core language for the term at point.
SPC m m i Show implicits for the term at point.
SPC m m h Hide implicits for the term at point.
SPC m m n Normalize the term at point.

Build system

Key Binding Description
SPC m b c Build the package.
SPC m b C Clean the package, removing .ibc files
SPC m b i Install the package to the user's repository, building first if necessary.
SPC m b p Open package file.

When inside a package file, you can insert a field with SPC m f.