branch: master
commit daab7802cdb5efacc482dddc5714c853b49bfac6
Merge: 8acc296 6ec1443
Author: Stefan Monnier <monn...@iro.umontreal.ca>
Commit: Stefan Monnier <monn...@iro.umontreal.ca>
Add 'packages/dts-mode/' from commit
'6ec1443ead16105234765f9b48df9b4aca562e61'
git-subtree-dir: packages/dts-mode
git-subtree-mainline: 8acc296b693c71bcde29cdd0d3b21f2540b08043
git-subtree-split: 6ec1443ead16105234765f9b48df9b4aca562e61
---
packages/dts-mode/README.mkd | 12 ++++
packages/dts-mode/dts-mode.el | 117 +++++++++++++++++++++++++++++++++++++++++
2 files changed, 129 insertions(+), 0 deletions(-)
diff --git a/packages/dts-mode/README.mkd b/packages/dts-mode/README.mkd
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+++ b/packages/dts-mode/README.mkd
@@ -0,0 +1,12 @@
+# dts-mode — A Device Tree major mode for emacs
+
+This is a quick attempt at getting basic highlighting for [Device
+Tree][devicetree] syntax in emacs. While it's fairly functional, it's not
+pretty; pull requests welcome.
+
+[devicetree]: http://www.devicetree.org/
+
+## Installation
+
+Available through [MELPA](http://melpa.milkbox.net/#/). Alternatively ensure
+`dts-mode.el` is available in `load-path` and `(require 'dts-mode)`.
diff --git a/packages/dts-mode/dts-mode.el b/packages/dts-mode/dts-mode.el
new file mode 100644
index 0000000..2ee2f44
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+++ b/packages/dts-mode/dts-mode.el
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+;;; dts-mode.el --- Major mode for Devicetree source code
+
+;; Copyright (C) 2014 Ben Gamari
+
+;; Version: 0.1.0
+;; Author: Ben Gamari <b...@smart-cactus.org>
+;; Keywords: languages
+
+;; This program is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;;
+
+;;; Code:
+
+(defconst dts-re-ident "\\([[:word:]_][[:word:][:multibyte:]_,[:digit:]-]*\\)")
+
+(defvar dts-mode-font-lock-keywords
+ `(
+ ;; names like `name: hi {`
+ (,(concat dts-re-ident ":") 1 font-lock-variable-name-face)
+ ;; nodes
+ (,(concat dts-re-ident "\\(@[[:xdigit:]]+\\)?[[:space:]]*{") 1
font-lock-type-face)
+ ;; assignments
+ (,(concat dts-re-ident "[[:space:]]*=") 1 font-lock-variable-name-face)
+ (,(concat dts-re-ident "[[:space:]]*;") 1 font-lock-variable-name-face)
+ ;; references
+ (,(concat "\\&" dts-re-ident) 1 font-lock-variable-name-face)
+ )
+ )
+
+(defvar dts-mode-syntax-table
+ (let ((table (make-syntax-table)))
+ (modify-syntax-entry ?< "(" table)
+ (modify-syntax-entry ?> ")" table)
+
+ (modify-syntax-entry ?& "." table)
+ (modify-syntax-entry ?| "." table)
+ (modify-syntax-entry ?& "." table)
+ (modify-syntax-entry ?~ "." table)
+
+ ;; _ and , are both word characters
+ (modify-syntax-entry ?, "_" table)
+ (modify-syntax-entry ?_ "w" table)
+
+ ;; Strings
+ (modify-syntax-entry ?\" "\"" table)
+ (modify-syntax-entry ?\\ "\\" table)
+
+ ;; Comments
+ (modify-syntax-entry ?/ ". 124b" table)
+ (modify-syntax-entry ?* ". 23" table)
+ (modify-syntax-entry ?\n "> b" table)
+ (modify-syntax-entry ?\^m "> b" table)
+
+ table))
+
+(defun dts--calculate-indentation ()
+ (interactive)
+ (save-excursion
+ (let ((end (point-at-eol))
+ (cnt 0)
+ (initial-point (point)))
+ (goto-char 0)
+ (while (re-search-forward "\\([{}]\\)" end t)
+ (if (string= (match-string-no-properties 0) "{")
+ (setq cnt (1+ cnt))
+ (setq cnt (1- cnt))))
+ ;; subtract one if the current line has an opening brace since we
+ ;; shouldn't add the indentation level until the following line
+ (goto-char initial-point)
+ (beginning-of-line)
+ (when (re-search-forward "{" (point-at-eol) t)
+ (setq cnt (1- cnt)))
+ cnt)))
+
+(defun dts-indent-line ()
+ (interactive)
+ (let ((indent (dts--calculate-indentation)))
+ (indent-line-to (* indent tab-width))))
+
+(defalias 'dts-parent-mode
+ (if (fboundp 'prog-mode) 'prog-mode 'fundamental-mode))
+
+;;;###autoload
+(define-derived-mode dts-mode dts-parent-mode "Devicetree"
+ "Major mode for editing Devicetrees"
+ :group 'dts-mode
+ :syntax-table dts-mode-syntax-table
+
+ ;; Fonts
+ (set (make-local-variable 'font-lock-defaults) '(dts-mode-font-lock-keywords
nil nil nil nil))
+
+ (set (make-local-variable 'comment-start) "/* ")
+ (set (make-local-variable 'comment-end) " */")
+ (set (make-local-variable 'comment-multi-line) t)
+ (set (make-local-variable 'indent-line-function) 'dts-indent-line))
+
+;;;###autoload
+(add-to-list 'auto-mode-alist '("\\.dts\\'" . dts-mode))
+;;;###autoload
+(add-to-list 'auto-mode-alist '("\\.dtsi\\'" . dts-mode))
+
+(provide 'dts-mode)
+;;; dts-mode.el ends here
