Add 'packages/dts-mode/' from commit '6ec1443ead16105234765f9b48df9b4aca562e61'

git-subtree-dir: packages/dts-mode
git-subtree-mainline: 8acc296b693c71bcde29cdd0d3b21f2540b08043
git-subtree-split: 6ec1443ead16105234765f9b48df9b4aca562e61

diff --combined packages/dts-mode/README.mkd
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--- /dev/null
--- 2/README.mkd
+++ b/packages/dts-mode/README.mkd
@@@ -1,0 -1,12 +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 --combined packages/dts-mode/dts-mode.el
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--- 2/dts-mode.el
+++ b/packages/dts-mode/dts-mode.el
@@@ -1,0 -1,117 +1,117 @@@
+ ;;; dts-mode.el --- Major mode for Devicetree source code
+ 
+ ;; Copyright (C) 2014  Ben Gamari
+ 
+ ;; Version: 0.1.0
+ ;; Author: Ben Gamari <ben@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