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spacemacs/layers/+checkers/syntax-checking/README.org
2019-05-15 21:08:21 +03:00

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#+TITLE: Syntax Checking layer
#+TAGS: checker|layer
[[file:img/flycheck.png]]
* Table of Contents :TOC_5_gh:noexport:
- [[#description][Description]]
- [[#features][Features:]]
- [[#install][Install]]
- [[#layer][Layer]]
- [[#enablingdisabling-tooltips][Enabling/Disabling tooltips]]
- [[#disabling-by-default][Disabling by default]]
- [[#bitmaps][Bitmaps]]
- [[#key-bindings][Key bindings]]
* Description
This layer adds on the fly syntax checking to all supported language layers.
** Features:
- Support for automatic syntax checking with [[http://www.flycheck.org/][Flycheck]] for various language layers
- Tooltip syntax errors with =popwin=
* Install
** Layer
To use this configuration layer, add it to your =~/.spacemacs=. You will need to
add =syntax-checking= to the existing =dotspacemacs-configuration-layers= list in this
file.
As this is a support layer you will also have to install at least one supported language
layer for it to have any effect.
** Enabling/Disabling tooltips
By default tooltips are enabled and used whenever it is possible.
You can disable them by setting the variable =syntax-checking-enable-tooltips=
to =nil=:
#+BEGIN_SRC emacs-lisp
(setq-default dotspacemacs-configuration-layers
'((syntax-checking :variables syntax-checking-enable-tooltips nil)))
#+END_SRC
** Disabling by default
By default, syntax-checking is enabled in all available major modes (except for
=emacs-lisp-mode=) and may be toggled off with ~SPC t s~. You can default this to off
by setting the variable =syntax-checking-enable-by-default= to =nil=:
#+BEGIN_SRC emacs-lisp
(setq-default dotspacemacs-configuration-layers
'((syntax-checking :variables syntax-checking-enable-by-default nil)))
#+END_SRC
If you want more fine-grained control, you can configure the variable
=flycheck-global-modes= instead. Note that this variable should be manipulated
in =dotspacemacs/user-config=.
** Bitmaps
If the original flycheck fringe bitmaps are more to your liking, you can set the
variable =syntax-checking-use-original-bitmaps= to =t=:
#+BEGIN_SRC emacs-lisp
(setq-default dotspacemacs-configuration-layers
'((syntax-checking :variables syntax-checking-use-original-bitmaps t)))
#+END_SRC
* Key bindings
| Key binding | Description |
|-------------+--------------------------------------------------------------|
| ~SPC e b~ | check for errors now |
| ~SPC e c~ | clear errors |
| ~SPC e h~ | describe flycheck checker |
| ~SPC e l~ | display a list of all the errors |
| ~SPC e L~ | display a list of all the errors and focus the errors buffer |
| ~SPC e s~ | set flycheck checker |
| ~SPC e S~ | set flycheck checker executable |
| ~SPC e v~ | verify flycheck setup |
| ~SPC t s~ | toggle flycheck |
| ~SPC e x~ | explain the error at point |