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README.org |
Spell Checking layer
Description
This layer provides spell checking capabilities to Spacemacs.
Features:
- Buffer-wide spell checking via external command (ispell, hunspell, aspell) run through Flyspell.
- Spell as you type
- Optional correction popups, controlled by
enable-flyspell-auto-completion
variable. - Auto dictionary mode for some languages.
Install
Layer
To use this configuration layer, add it to your ~/.spacemacs
. You will need to
add spell-checking
to the existing dotspacemacs-configuration-layers
list in this
file.
Spell Checker Configuration
The built-in Emacs variable that controls which external spell-checking program
is used is ispell-program-name
, which can be set in your
dotspacemacs/user-init
function if you do not like the default. It will give
priority to aspell
if it is installed on your system. Another important
variable to be aware of is ispell-dictionary
which will control the default
dictionary used by ispell-program-name
(instead of using this variable you can
also use the key binding SPC S d
).
Disabling by default
By default, spell-checking
is enabled in all available major modes and may be
toggled off with SPC t S
. You can default this to off by setting the variable
spell-checking-enable-by-default
to nil
:
(setq-default dotspacemacs-configuration-layers
'((spell-checking :variables spell-checking-enable-by-default nil)))
Enabling auto-dictionary-mode
auto-dictionary-mode
tries to detect the current language from the buffer
content, and activate the corresponding dictionary. You can enable it by setting
the variable spell-checking-enable-auto-dictionary
to something other than
nil
:
(setq-default dotspacemacs-configuration-layers
'((spell-checking :variables spell-checking-enable-auto-dictionary t)))
Some people encountered bugs with auto-dictionary-mode
, especially in daemon
mode where new emacsclient
open directly freezed. If so, no other workaround
have been found yet than disabling auto-dictionary-mode
completely.
Not all languages are supported by auto-dictionary-list
. The supported
languages are listed in the adict-language-list
variable, that can be checked
with spacemacs/describe-variable
. For convenience, here is the list of
currently supported language:
Language |
---|
catalan |
classical greek |
danish |
english |
esperanto |
french |
german |
hindi |
hungarian |
modern greek |
norwegian bokmål |
norwegian nynorsk |
portuguese |
romanian |
slovak |
slovene |
spanish |
swedish |
Enabling multi-dictionary support with hunspell
If your language is not supported by auto-dictionary feature or you author multi-lingual documents you might be compelled to use hunspell’s multi-dictionary mode. For example to enable it for pl_PL and en_GB dictionaries you could put following code in your dotspacemacs/user-config section in your configuration file:
(with-eval-after-load "ispell"
(setq ispell-program-name "hunspell")
;; ispell-set-spellchecker-params has to be called
;; before ispell-hunspell-add-multi-dic will work
(ispell-set-spellchecker-params)
(ispell-hunspell-add-multi-dic "pl_PL,en_GB")
(setq ispell-dictionary "pl_PL,en_GB"))
One caveat is you need quite modern ispell.el for above to work. It’s been tested with version coming from Emacs 25.2 repository.
Enable auto-completion popup
To enable auto-completion popup when the point is idle on a misspelled word
set the layer variable enable-flyspell-auto-completion
to t:
(setq-default dotspacemacs-configuration-layers
'((spell-checking :variables enable-flyspell-auto-completion t)))
Key bindings
Key binding | Description |
---|---|
SPC S b |
flyspell whole buffer |
SPC S c |
flyspell correct |
SPC u SPC S c |
flyspell correct all errors one by one |
SPC S d |
change dictionary |
SPC S n |
flyspell goto next error |
SPC t S |
toggle flyspell |
Spell Checking Transient-state
Key binding | Description |
---|---|
SPC S . b |
Rerun spell check for the whole buffer |
SPC S . d |
Change dictionary |
SPC S . n |
Go to next spelling error |
SPC S . c |
Correct word under cursor |
SPC S . t |
Toggle spell check |
SPC S . q |
Quit transient state |
SPC S . Q |
Quit transient state and disable flyspell-mode |
Known issues
Vim-empty-lines layer seems incompatible with spell-checking inside org-mode. If
you experience “Args out of range” error message when invoking SPC S c
inside
org-mode buffer then check if you don’t have vim-empty-lines layer enabled and
disable it.