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| author | Alex Kost <alezost@gmail.com> | 2015-09-24 20:10:29 +0300 |
|---|---|---|
| committer | Alex Kost <alezost@gmail.com> | 2015-09-26 22:38:43 +0300 |
| commit | 730bf80888d016d1bde15d7c777cb46d1616c084 (patch) | |
| tree | 03043c827d722374c07f99b5b69e15240b27d1b1 /emacs/guix-devel.el | |
| parent | c284e78fa4453fb2045547758995bc61ba182993 (diff) | |
| download | guix-730bf80888d016d1bde15d7c777cb46d1616c084.tar guix-730bf80888d016d1bde15d7c777cb46d1616c084.tar.gz | |
emacs: devel: Highlight 'modify-phases' keywords.
* emacs/guix-guile.el (guix-guile-keyword-regexp): New function.
* emacs/guix-devel.el (guix-devel-faces): New custom group.
(guix-devel-modify-phases-keyword): New face.
(guix-devel-modify-phases-keyword-regexp,
guix-devel-font-lock-keywords): New variables.
(guix-devel-modify-phases-font-lock-matcher,
guix-devel-modify-phases-font-lock-pre): New functions.
(guix-devel-mode): Adjust to add/remove font-lock-keywords.
Diffstat (limited to 'emacs/guix-devel.el')
| -rw-r--r-- | emacs/guix-devel.el | 55 |
1 files changed, 54 insertions, 1 deletions
diff --git a/emacs/guix-devel.el b/emacs/guix-devel.el index 6de49be3e6..8a6fc1ec08 100644 --- a/emacs/guix-devel.el +++ b/emacs/guix-devel.el @@ -33,6 +33,16 @@ "Settings for Guix development utils." :group 'guix) +(defgroup guix-devel-faces nil + "Faces for `guix-devel-mode'." + :group 'guix-devel + :group 'guix-faces) + +(defface guix-devel-modify-phases-keyword + '((t :inherit font-lock-preprocessor-face)) + "Face for a `modify-phases' keyword ('delete', 'replace', etc.)." + :group 'guix-devel-faces) + (defcustom guix-devel-activate-mode t "If non-nil, then `guix-devel-mode' is automatically activated in Scheme buffers." @@ -94,6 +104,41 @@ Interactively, use the module defined by the current scheme file." guix-use-substitutes) "#:dry-run?" (guix-guile-boolean guix-dry-run))))))) + +;;; Font-lock + +(defvar guix-devel-modify-phases-keyword-regexp + (rx (+ word)) + "Regexp for a 'modify-phases' keyword ('delete', 'replace', etc.).") + +(defun guix-devel-modify-phases-font-lock-matcher (limit) + "Find a 'modify-phases' keyword. +This function is used as a MATCHER for `font-lock-keywords'." + (ignore-errors + (down-list) + (or (re-search-forward guix-devel-modify-phases-keyword-regexp + limit t) + (set-match-data nil)) + (up-list) + t)) + +(defun guix-devel-modify-phases-font-lock-pre () + "Skip the next sexp, and return the end point of the current list. +This function is used as a PRE-MATCH-FORM for `font-lock-keywords' +to find 'modify-phases' keywords." + (ignore-errors (forward-sexp)) + (save-excursion (up-list) (point))) + +(defvar guix-devel-font-lock-keywords + `((,(guix-guile-keyword-regexp "modify-phases") + (1 'font-lock-keyword-face) + (guix-devel-modify-phases-font-lock-matcher + (guix-devel-modify-phases-font-lock-pre) + nil + (0 'guix-devel-modify-phases-keyword nil t)))) + "A list of `font-lock-keywords' for `guix-devel-mode'.") + + (defvar guix-devel-keys-map (let ((map (make-sparse-keymap))) (define-key map (kbd "b") 'guix-devel-build-package-definition) @@ -122,7 +167,15 @@ bindings: \\{guix-devel-mode-map}" :init-value nil :lighter " Guix" - :keymap guix-devel-mode-map) + :keymap guix-devel-mode-map + (if guix-devel-mode + (progn + (setq-local font-lock-multiline t) + (font-lock-add-keywords nil guix-devel-font-lock-keywords)) + (setq-local font-lock-multiline nil) + (font-lock-remove-keywords nil guix-devel-font-lock-keywords)) + (when font-lock-mode + (font-lock-fontify-buffer))) ;;;###autoload (defun guix-devel-activate-mode-maybe () |