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June 7, 2013 20:31
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treetop-mode.el --- Major mode for editing Treetop files
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| ;;; treetop-mode.el --- Major mode for editing Treetop files | |
| ;; Copyright (C) 1994, 1995, 1996 1997, 1998, 1999, 2000, 2001, | |
| ;; 2002,2003, 2004, 2005, 2006, 2007, 2008 | |
| ;; Free Software Foundation, Inc. | |
| ;; Author: Anurag Patel | |
| ;; Adapted from original work by: Yukihiro Matsumoto, Nobuyoshi Nakada | |
| ;; URL: http://www.emacswiki.org/cgi-bin/wiki/TreetopMode | |
| ;; Created: Fri Jun 8 02:01:00 IST 2013 | |
| ;; Keywords: languages treetop | |
| ;; Version: 0.9 | |
| ;; This file is not part of GNU Emacs. However, a newer version of | |
| ;; treetop-mode is included in recent releases of GNU Emacs (version 23 | |
| ;; and up), but the new version is not guaranteed to be compatible | |
| ;; with older versions of Emacs or XEmacs. This file is the last | |
| ;; version that aims to keep this compatibility. | |
| ;; You can also get the latest version from the Emacs Lisp Package | |
| ;; Archive: http://tromey.com/elpa | |
| ;; This file 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. | |
| ;; It 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 it. If not, see <http://www.gnu.org/licenses/>. | |
| ;;; Commentary: | |
| ;; Provides font-locking, indentation support, and navigation for Treetop code. | |
| ;; | |
| ;; If you're installing manually, you should add this to your .emacs | |
| ;; file after putting it on your load path: | |
| ;; | |
| ;; (autoload 'treetop-mode "treetop-mode" "Major mode for treetop files" t) | |
| ;; (add-to-list 'auto-mode-alist '("\\.rb$" . treetop-mode)) | |
| ;; (add-to-list 'interpreter-mode-alist '("treetop" . treetop-mode)) | |
| ;; | |
| ;;; Code: | |
| (defconst treetop-mode-revision "$Revision: 33278 $" | |
| "Treetop mode revision string.") | |
| (defconst treetop-mode-version | |
| (and (string-match "[0-9.]+" treetop-mode-revision) | |
| (substring treetop-mode-revision (match-beginning 0) (match-end 0))) | |
| "Treetop mode version number.") | |
| (defconst treetop-keyword-end-re | |
| (if (string-match "\\_>" "treetop") | |
| "\\_>" | |
| "\\>")) | |
| (defconst treetop-block-beg-keywords | |
| '("class" "module" "grammar" "rule" "def" "if" "unless" "case" "while" "until" "for" "begin" "do" "grammar" "rule") | |
| "Keywords at the beginning of blocks.") | |
| (defconst treetop-block-beg-re | |
| (regexp-opt treetop-block-beg-keywords) | |
| "Regexp to match the beginning of blocks.") | |
| (defconst treetop-non-block-do-re | |
| (concat (regexp-opt '("while" "until" "for" "rescue") t) treetop-keyword-end-re) | |
| "Regexp to match") | |
| (defconst treetop-indent-beg-re | |
| (concat "\\(\\s *" (regexp-opt '("class" "module" "def" "grammar" "rule") t) "\\)\\|" | |
| (regexp-opt '("if" "unless" "case" "while" "until" "for" "begin"))) | |
| "Regexp to match where the indentation gets deeper.") | |
| (defconst treetop-modifier-beg-keywords | |
| '("if" "unless" "while" "until") | |
| "Modifiers that are the same as the beginning of blocks.") | |
| (defconst treetop-modifier-beg-re | |
| (regexp-opt treetop-modifier-beg-keywords) | |
| "Regexp to match modifiers same as the beginning of blocks.") | |
| (defconst treetop-modifier-re | |
| (regexp-opt (cons "rescue" treetop-modifier-beg-keywords)) | |
| "Regexp to match modifiers.") | |
| (defconst treetop-block-mid-keywords | |
| '("then" "else" "elsif" "when" "rescue" "ensure") | |
| "Keywords where the indentation gets shallower in middle of block statements.") | |
| (defconst treetop-block-mid-re | |
| (regexp-opt treetop-block-mid-keywords) | |
| "Regexp to match where the indentation gets shallower in middle of block statements.") | |
| (defconst treetop-block-op-keywords | |
| '("and" "or" "not") | |
| "Block operators.") | |
| (defconst treetop-block-hanging-re | |
| (regexp-opt (append treetop-modifier-beg-keywords treetop-block-op-keywords)) | |
| "Regexp to match hanging block modifiers.") | |
| (defconst treetop-block-end-re "\\<end\\>") | |
| (defconst treetop-here-doc-beg-re | |
| "\\(<\\)<\\(-\\)?\\(\\([a-zA-Z0-9_]+\\)\\|[\"]\\([^\"]+\\)[\"]\\|[']\\([^']+\\)[']\\)") | |
| (defconst treetop-here-doc-end-re | |
| "^\\([ \t]+\\)?\\(.*\\)\\(.\\)$") | |
| (defun treetop-here-doc-end-match () | |
| (concat "^" | |
| (if (match-string 2) "[ \t]*" nil) | |
| (regexp-quote | |
| (or (match-string 4) | |
| (match-string 5) | |
| (match-string 6))))) | |
| (defun treetop-here-doc-beg-match () | |
| (let ((contents (concat | |
| (regexp-quote (concat (match-string 2) (match-string 3))) | |
| (if (string= (match-string 3) "_") "\\B" "\\b")))) | |
| (concat "<<" | |
| (let ((match (match-string 1))) | |
| (if (and match (> (length match) 0)) | |
| (concat "\\(?:-\\([\"']?\\)\\|\\([\"']\\)" (match-string 1) "\\)" | |
| contents "\\(\\1\\|\\2\\)") | |
| (concat "-?\\([\"']\\|\\)" contents "\\1")))))) | |
| (defconst treetop-delimiter | |
| (concat "[?$/%(){}#\"'`.:]\\|<<\\|\\[\\|\\]\\|\\<\\(" | |
| treetop-block-beg-re | |
| "\\)\\>\\|" treetop-block-end-re | |
| "\\|^=begin\\|" treetop-here-doc-beg-re) | |
| ) | |
| (defconst treetop-negative | |
| (concat "^[ \t]*\\(\\(" treetop-block-mid-re "\\)\\>\\|" | |
| treetop-block-end-re "\\|}\\|\\]\\)") | |
| "Regexp to match where the indentation gets shallower.") | |
| (defconst treetop-operator-chars "-,.+*/%&|^~=<>:") | |
| (defconst treetop-operator-re (concat "[" treetop-operator-chars "]")) | |
| (defconst treetop-symbol-chars "a-zA-Z0-9_") | |
| (defconst treetop-symbol-re (concat "[" treetop-symbol-chars "]")) | |
| (defvar treetop-mode-abbrev-table nil | |
| "Abbrev table in use in treetop-mode buffers.") | |
| (define-abbrev-table 'treetop-mode-abbrev-table ()) | |
| (defvar treetop-mode-map nil "Keymap used in treetop mode.") | |
| (if treetop-mode-map | |
| nil | |
| (setq treetop-mode-map (make-sparse-keymap)) | |
| (define-key treetop-mode-map "{" 'treetop-electric-brace) | |
| (define-key treetop-mode-map "}" 'treetop-electric-brace) | |
| (define-key treetop-mode-map "\e\C-a" 'treetop-beginning-of-defun) | |
| (define-key treetop-mode-map "\e\C-e" 'treetop-end-of-defun) | |
| (define-key treetop-mode-map "\e\C-b" 'treetop-backward-sexp) | |
| (define-key treetop-mode-map "\e\C-f" 'treetop-forward-sexp) | |
| (define-key treetop-mode-map "\e\C-p" 'treetop-beginning-of-block) | |
| (define-key treetop-mode-map "\e\C-n" 'treetop-end-of-block) | |
| (define-key treetop-mode-map "\e\C-h" 'treetop-mark-defun) | |
| (define-key treetop-mode-map "\e\C-q" 'treetop-indent-exp) | |
| (define-key treetop-mode-map "\t" 'treetop-indent-command) | |
| (define-key treetop-mode-map "\C-c\C-e" 'treetop-insert-end) | |
| (define-key treetop-mode-map "\C-j" 'treetop-reindent-then-newline-and-indent) | |
| (define-key treetop-mode-map "\C-c{" 'treetop-toggle-block) | |
| (define-key treetop-mode-map "\C-c\C-u" 'uncomment-region)) | |
| (defvar treetop-mode-syntax-table nil | |
| "Syntax table in use in treetop-mode buffers.") | |
| (if treetop-mode-syntax-table | |
| () | |
| (setq treetop-mode-syntax-table (make-syntax-table)) | |
| (modify-syntax-entry ?\' "\"" treetop-mode-syntax-table) | |
| (modify-syntax-entry ?\" "\"" treetop-mode-syntax-table) | |
| (modify-syntax-entry ?\` "\"" treetop-mode-syntax-table) | |
| (modify-syntax-entry ?# "<" treetop-mode-syntax-table) | |
| (modify-syntax-entry ?\n ">" treetop-mode-syntax-table) | |
| (modify-syntax-entry ?\\ "\\" treetop-mode-syntax-table) | |
| (modify-syntax-entry ?$ "." treetop-mode-syntax-table) | |
| (modify-syntax-entry ?? "_" treetop-mode-syntax-table) | |
| (modify-syntax-entry ?_ "_" treetop-mode-syntax-table) | |
| (modify-syntax-entry ?< "." treetop-mode-syntax-table) | |
| (modify-syntax-entry ?> "." treetop-mode-syntax-table) | |
| (modify-syntax-entry ?& "." treetop-mode-syntax-table) | |
| (modify-syntax-entry ?| "." treetop-mode-syntax-table) | |
| (modify-syntax-entry ?% "." treetop-mode-syntax-table) | |
| (modify-syntax-entry ?= "." treetop-mode-syntax-table) | |
| (modify-syntax-entry ?/ "." treetop-mode-syntax-table) | |
| (modify-syntax-entry ?+ "." treetop-mode-syntax-table) | |
| (modify-syntax-entry ?* "." treetop-mode-syntax-table) | |
| (modify-syntax-entry ?- "." treetop-mode-syntax-table) | |
| (modify-syntax-entry ?\; "." treetop-mode-syntax-table) | |
| (modify-syntax-entry ?\( "()" treetop-mode-syntax-table) | |
| (modify-syntax-entry ?\) ")(" treetop-mode-syntax-table) | |
| (modify-syntax-entry ?\{ "(}" treetop-mode-syntax-table) | |
| (modify-syntax-entry ?\} "){" treetop-mode-syntax-table) | |
| (modify-syntax-entry ?\[ "(]" treetop-mode-syntax-table) | |
| (modify-syntax-entry ?\] ")[" treetop-mode-syntax-table) | |
| ) | |
| (defcustom treetop-indent-tabs-mode nil | |
| "*Indentation can insert tabs in treetop mode if this is non-nil." | |
| :type 'boolean :group 'treetop) | |
| (put 'treetop-indent-tabs-mode 'safe-local-variable 'booleanp) | |
| (defcustom treetop-indent-level 2 | |
| "*Indentation of treetop statements." | |
| :type 'integer :group 'treetop) | |
| (put 'treetop-indent-level 'safe-local-variable 'integerp) | |
| (defcustom treetop-comment-column 32 | |
| "*Indentation column of comments." | |
| :type 'integer :group 'treetop) | |
| (put 'treetop-comment-column 'safe-local-variable 'integerp) | |
| (defcustom treetop-deep-arglist t | |
| "*Deep indent lists in parenthesis when non-nil. | |
| Also ignores spaces after parenthesis when 'space." | |
| :group 'treetop) | |
| (put 'treetop-deep-arglist 'safe-local-variable 'booleanp) | |
| (defcustom treetop-deep-indent-paren '(?\( ?\[ ?\] t) | |
| "*Deep indent lists in parenthesis when non-nil. t means continuous line. | |
| Also ignores spaces after parenthesis when 'space." | |
| :group 'treetop) | |
| (defcustom treetop-deep-indent-paren-style 'space | |
| "Default deep indent style." | |
| :options '(t nil space) :group 'treetop) | |
| (defcustom treetop-encoding-map '((shift_jis . cp932) (shift-jis . cp932)) | |
| "Alist to map encoding name from emacs to treetop." | |
| :group 'treetop) | |
| (defcustom treetop-use-encoding-map t | |
| "*Use `treetop-encoding-map' to set encoding magic comment if this is non-nil." | |
| :type 'boolean :group 'treetop) | |
| (defvar treetop-indent-point nil "internal variable") | |
| (eval-when-compile (require 'cl)) | |
| (defun treetop-imenu-create-index-in-block (prefix beg end) | |
| (let ((index-alist '()) (case-fold-search nil) | |
| name next pos decl sing) | |
| (goto-char beg) | |
| (while (re-search-forward "^\\s *\\(\\(class\\s +\\|\\(class\\s *<<\\s *\\)\\|module\\s +\\)\\([^\(<\n ]+\\)\\|\\(def\\|alias\\)\\s +\\([^\(\n ]+\\)\\)" end t) | |
| (setq sing (match-beginning 3)) | |
| (setq decl (match-string 5)) | |
| (setq next (match-end 0)) | |
| (setq name (or (match-string 4) (match-string 6))) | |
| (setq pos (match-beginning 0)) | |
| (cond | |
| ((string= "alias" decl) | |
| (if prefix (setq name (concat prefix name))) | |
| (push (cons name pos) index-alist)) | |
| ((string= "def" decl) | |
| (if prefix | |
| (setq name | |
| (cond | |
| ((string-match "^self\." name) | |
| (concat (substring prefix 0 -1) (substring name 4))) | |
| (t (concat prefix name))))) | |
| (push (cons name pos) index-alist) | |
| (treetop-accurate-end-of-block end)) | |
| (t | |
| (if (string= "self" name) | |
| (if prefix (setq name (substring prefix 0 -1))) | |
| (if prefix (setq name (concat (substring prefix 0 -1) "::" name))) | |
| (push (cons name pos) index-alist)) | |
| (treetop-accurate-end-of-block end) | |
| (setq beg (point)) | |
| (setq index-alist | |
| (nconc (treetop-imenu-create-index-in-block | |
| (concat name (if sing "." "#")) | |
| next beg) index-alist)) | |
| (goto-char beg)))) | |
| index-alist)) | |
| (defun treetop-imenu-create-index () | |
| (nreverse (treetop-imenu-create-index-in-block nil (point-min) nil))) | |
| (defun treetop-accurate-end-of-block (&optional end) | |
| (let (state) | |
| (or end (setq end (point-max))) | |
| (while (and (setq state (apply 'treetop-parse-partial end state)) | |
| (>= (nth 2 state) 0) (< (point) end))))) | |
| (defun treetop-mode-variables () | |
| (set-syntax-table treetop-mode-syntax-table) | |
| (setq show-trailing-whitespace t) | |
| (setq local-abbrev-table treetop-mode-abbrev-table) | |
| (make-local-variable 'indent-line-function) | |
| (setq indent-line-function 'treetop-indent-line) | |
| (make-local-variable 'require-final-newline) | |
| (setq require-final-newline t) | |
| (make-local-variable 'comment-start) | |
| (setq comment-start "# ") | |
| (make-local-variable 'comment-end) | |
| (setq comment-end "") | |
| (make-local-variable 'comment-column) | |
| (setq comment-column treetop-comment-column) | |
| (make-local-variable 'comment-start-skip) | |
| (setq comment-start-skip "#+ *") | |
| (setq indent-tabs-mode treetop-indent-tabs-mode) | |
| (make-local-variable 'parse-sexp-ignore-comments) | |
| (setq parse-sexp-ignore-comments t) | |
| (make-local-variable 'parse-sexp-lookup-properties) | |
| (setq parse-sexp-lookup-properties t) | |
| (make-local-variable 'paragraph-start) | |
| (setq paragraph-start (concat "$\\|" page-delimiter)) | |
| (make-local-variable 'paragraph-separate) | |
| (setq paragraph-separate paragraph-start) | |
| (make-local-variable 'paragraph-ignore-fill-prefix) | |
| (setq paragraph-ignore-fill-prefix t)) | |
| (defun treetop-mode-set-encoding () | |
| (save-excursion | |
| (widen) | |
| (goto-char (point-min)) | |
| (when (re-search-forward "[^\0-\177]" nil t) | |
| (goto-char (point-min)) | |
| (let ((coding-system | |
| (or coding-system-for-write | |
| buffer-file-coding-system))) | |
| (if coding-system | |
| (setq coding-system | |
| (or (coding-system-get coding-system 'mime-charset) | |
| (coding-system-change-eol-conversion coding-system nil)))) | |
| (setq coding-system | |
| (if coding-system | |
| (symbol-name | |
| (or (and treetop-use-encoding-map | |
| (cdr (assq coding-system treetop-encoding-map))) | |
| coding-system)) | |
| "ascii-8bit")) | |
| (if (looking-at "^#!") (beginning-of-line 2)) | |
| (cond ((looking-at "\\s *#.*-\*-\\s *\\(en\\)?coding\\s *:\\s *\\([-a-z0-9_]*\\)\\s *\\(;\\|-\*-\\)") | |
| (unless (string= (match-string 2) coding-system) | |
| (goto-char (match-beginning 2)) | |
| (delete-region (point) (match-end 2)) | |
| (and (looking-at "-\*-") | |
| (let ((n (skip-chars-backward " "))) | |
| (cond ((= n 0) (insert " ") (backward-char)) | |
| ((= n -1) (insert " ")) | |
| ((forward-char))))) | |
| (insert coding-system))) | |
| ((looking-at "\\s *#.*coding\\s *[:=]")) | |
| (t (insert "# -*- coding: " coding-system " -*-\n")) | |
| ))))) | |
| (defun treetop-current-indentation () | |
| (save-excursion | |
| (beginning-of-line) | |
| (back-to-indentation) | |
| (current-column))) | |
| (defun treetop-indent-line (&optional flag) | |
| "Correct indentation of the current treetop line." | |
| (treetop-indent-to (treetop-calculate-indent))) | |
| (defun treetop-indent-command () | |
| (interactive) | |
| (treetop-indent-line t)) | |
| (defun treetop-indent-to (x) | |
| (if x | |
| (let (shift top beg) | |
| (and (< x 0) (error "invalid nest")) | |
| (setq shift (current-column)) | |
| (beginning-of-line) | |
| (setq beg (point)) | |
| (back-to-indentation) | |
| (setq top (current-column)) | |
| (skip-chars-backward " \t") | |
| (if (>= shift top) (setq shift (- shift top)) | |
| (setq shift 0)) | |
| (if (and (bolp) | |
| (= x top)) | |
| (move-to-column (+ x shift)) | |
| (move-to-column top) | |
| (delete-region beg (point)) | |
| (beginning-of-line) | |
| (indent-to x) | |
| (move-to-column (+ x shift)))))) | |
| (defun treetop-special-char-p (&optional pnt) | |
| (setq pnt (or pnt (point))) | |
| (let ((c (char-before pnt)) (b (and (< (point-min) pnt) (char-before (1- pnt))))) | |
| (cond ((or (eq c ??) (eq c ?$))) | |
| ((and (eq c ?:) (or (not b) (eq (char-syntax b) ? )))) | |
| ((eq c ?\\) (eq b ??))))) | |
| (defun treetop-singleton-class-p () | |
| (save-excursion | |
| (forward-word -1) | |
| (and (or (bolp) (not (eq (char-before (point)) ?_))) | |
| (looking-at "class\\s *<<")))) | |
| (defun treetop-expr-beg (&optional option) | |
| (save-excursion | |
| (store-match-data nil) | |
| (let ((space (skip-chars-backward " \t")) | |
| (start (point))) | |
| (cond | |
| ((bolp) t) | |
| ((progn | |
| (forward-char -1) | |
| (and (looking-at "\\?") | |
| (or (eq (char-syntax (char-before (point))) ?w) | |
| (treetop-special-char-p)))) | |
| nil) | |
| ((and (eq option 'heredoc) (< space 0)) | |
| (not (progn (goto-char start) (treetop-singleton-class-p)))) | |
| ((or (looking-at treetop-operator-re) | |
| (looking-at "[\\[({,;]") | |
| (and (looking-at "[!?]") | |
| (or (not (eq option 'modifier)) | |
| (bolp) | |
| (save-excursion (forward-char -1) (looking-at "\\Sw$")))) | |
| (and (looking-at treetop-symbol-re) | |
| (skip-chars-backward treetop-symbol-chars) | |
| (cond | |
| ((looking-at (regexp-opt | |
| (append treetop-block-beg-keywords | |
| treetop-block-op-keywords | |
| treetop-block-mid-keywords) | |
| 'words)) | |
| (goto-char (match-end 0)) | |
| (not (looking-at "\\s_\\|[!?:]"))) | |
| ((eq option 'expr-qstr) | |
| (looking-at "[a-zA-Z][a-zA-z0-9_]* +%[^ \t]")) | |
| ((eq option 'expr-re) | |
| (looking-at "[a-zA-Z][a-zA-z0-9_]* +/[^ \t]")) | |
| (t nil))))))))) | |
| (defun treetop-forward-string (term &optional end no-error expand) | |
| (let ((n 1) (c (string-to-char term)) | |
| (re (if expand | |
| (concat "[^\\]\\(\\\\\\\\\\)*\\([" term "]\\|\\(#{\\)\\)") | |
| (concat "[^\\]\\(\\\\\\\\\\)*[" term "]")))) | |
| (while (and (re-search-forward re end no-error) | |
| (if (match-beginning 3) | |
| (treetop-forward-string "}{" end no-error nil) | |
| (> (setq n (if (eq (char-before (point)) c) | |
| (1- n) (1+ n))) 0))) | |
| (forward-char -1)) | |
| (cond ((zerop n)) | |
| (no-error nil) | |
| ((error "unterminated string"))))) | |
| (defun treetop-deep-indent-paren-p (c) | |
| (cond ((listp treetop-deep-indent-paren) | |
| (let ((deep (assoc c treetop-deep-indent-paren))) | |
| (cond (deep | |
| (or (cdr deep) treetop-deep-indent-paren-style)) | |
| ((memq c treetop-deep-indent-paren) | |
| treetop-deep-indent-paren-style)))) | |
| ((eq c treetop-deep-indent-paren) treetop-deep-indent-paren-style) | |
| ((eq c ?\( ) treetop-deep-arglist))) | |
| (defun treetop-parse-partial (&optional end in-string nest depth pcol indent) | |
| (or depth (setq depth 0)) | |
| (or indent (setq indent 0)) | |
| (when (re-search-forward treetop-delimiter end 'move) | |
| (let ((pnt (point)) w re expand) | |
| (goto-char (match-beginning 0)) | |
| (cond | |
| ((and (memq (char-before) '(?@ ?$)) (looking-at "\\sw")) | |
| (goto-char pnt)) | |
| ((looking-at "[\"`]") ;skip string | |
| (cond | |
| ((and (not (eobp)) | |
| (treetop-forward-string (buffer-substring (point) (1+ (point))) end t t)) | |
| nil) | |
| (t | |
| (setq in-string (point)) | |
| (goto-char end)))) | |
| ((looking-at "'") | |
| (cond | |
| ((and (not (eobp)) | |
| (re-search-forward "[^\\]\\(\\\\\\\\\\)*'" end t)) | |
| nil) | |
| (t | |
| (setq in-string (point)) | |
| (goto-char end)))) | |
| ((looking-at "/=") | |
| (goto-char pnt)) | |
| ((looking-at "/") | |
| (cond | |
| ((and (not (eobp)) (treetop-expr-beg 'expr-re)) | |
| (if (treetop-forward-string "/" end t t) | |
| nil | |
| (setq in-string (point)) | |
| (goto-char end))) | |
| (t | |
| (goto-char pnt)))) | |
| ((looking-at "%") | |
| (cond | |
| ((and (not (eobp)) | |
| (treetop-expr-beg 'expr-qstr) | |
| (not (looking-at "%=")) | |
| (looking-at "%[QqrxWw]?\\([^a-zA-Z0-9 \t\n]\\)")) | |
| (goto-char (match-beginning 1)) | |
| (setq expand (not (memq (char-before) '(?q ?w)))) | |
| (setq w (match-string 1)) | |
| (cond | |
| ((string= w "[") (setq re "][")) | |
| ((string= w "{") (setq re "}{")) | |
| ((string= w "(") (setq re ")(")) | |
| ((string= w "<") (setq re "><")) | |
| ((and expand (string= w "\\")) | |
| (setq w (concat "\\" w)))) | |
| (unless (cond (re (treetop-forward-string re end t expand)) | |
| (expand (treetop-forward-string w end t t)) | |
| (t (re-search-forward | |
| (if (string= w "\\") | |
| "\\\\[^\\]*\\\\" | |
| (concat "[^\\]\\(\\\\\\\\\\)*" w)) | |
| end t))) | |
| (setq in-string (point)) | |
| (goto-char end))) | |
| (t | |
| (goto-char pnt)))) | |
| ((looking-at "\\?") ;skip ?char | |
| (cond | |
| ((and (treetop-expr-beg) | |
| (looking-at "?\\(\\\\C-\\|\\\\M-\\)*\\\\?.")) | |
| (goto-char (match-end 0))) | |
| (t | |
| (goto-char pnt)))) | |
| ((looking-at "\\$") ;skip $char | |
| (goto-char pnt) | |
| (forward-char 1)) | |
| ((looking-at "#") ;skip comment | |
| (forward-line 1) | |
| (goto-char (point)) | |
| ) | |
| ((looking-at "[\\[{(]") | |
| (let ((deep (treetop-deep-indent-paren-p (char-after)))) | |
| (if (and deep (or (not (eq (char-after) ?\{)) (treetop-expr-beg))) | |
| (progn | |
| (and (eq deep 'space) (looking-at ".\\s +[^# \t\n]") | |
| (setq pnt (1- (match-end 0)))) | |
| (setq nest (cons (cons (char-after (point)) pnt) nest)) | |
| (setq pcol (cons (cons pnt depth) pcol)) | |
| (setq depth 0)) | |
| (setq nest (cons (cons (char-after (point)) pnt) nest)) | |
| (setq depth (1+ depth)))) | |
| (goto-char pnt) | |
| ) | |
| ((looking-at "[])}]") | |
| (if (treetop-deep-indent-paren-p (matching-paren (char-after))) | |
| (setq depth (cdr (car pcol)) pcol (cdr pcol)) | |
| (setq depth (1- depth))) | |
| (setq nest (cdr nest)) | |
| (goto-char pnt)) | |
| ((looking-at treetop-block-end-re) | |
| (if (or (and (not (bolp)) | |
| (progn | |
| (forward-char -1) | |
| (setq w (char-after (point))) | |
| (or (eq ?_ w) | |
| (eq ?. w)))) | |
| (progn | |
| (goto-char pnt) | |
| (setq w (char-after (point))) | |
| (or (eq ?_ w) | |
| (eq ?! w) | |
| (eq ?? w)))) | |
| nil | |
| (setq nest (cdr nest)) | |
| (setq depth (1- depth))) | |
| (goto-char pnt)) | |
| ((looking-at "def\\s +[^(\n;]*") | |
| (if (or (bolp) | |
| (progn | |
| (forward-char -1) | |
| (not (eq ?_ (char-after (point)))))) | |
| (progn | |
| (setq nest (cons (cons nil pnt) nest)) | |
| (setq depth (1+ depth)))) | |
| (goto-char (match-end 0))) | |
| ((looking-at (concat "\\<\\(" treetop-block-beg-re "\\)\\>")) | |
| (and | |
| (save-match-data | |
| (or (not (looking-at (concat "do" treetop-keyword-end-re))) | |
| (save-excursion | |
| (back-to-indentation) | |
| (not (looking-at treetop-non-block-do-re))))) | |
| (or (bolp) | |
| (progn | |
| (forward-char -1) | |
| (setq w (char-after (point))) | |
| (not (or (eq ?_ w) | |
| (eq ?. w))))) | |
| (goto-char pnt) | |
| (setq w (char-after (point))) | |
| (not (eq ?_ w)) | |
| (not (eq ?! w)) | |
| (not (eq ?? w)) | |
| (not (eq ?: w)) | |
| (skip-chars-forward " \t") | |
| (goto-char (match-beginning 0)) | |
| (or (not (looking-at treetop-modifier-re)) | |
| (treetop-expr-beg 'modifier)) | |
| (goto-char pnt) | |
| (setq nest (cons (cons nil pnt) nest)) | |
| (setq depth (1+ depth))) | |
| (goto-char pnt)) | |
| ((looking-at ":\\(['\"]\\)") | |
| (goto-char (match-beginning 1)) | |
| (treetop-forward-string (buffer-substring (match-beginning 1) (match-end 1)) end)) | |
| ((looking-at ":\\([-,.+*/%&|^~<>]=?\\|===?\\|<=>\\|![~=]?\\)") | |
| (goto-char (match-end 0))) | |
| ((looking-at ":\\([a-zA-Z_][a-zA-Z_0-9]*[!?=]?\\)?") | |
| (goto-char (match-end 0))) | |
| ((or (looking-at "\\.\\.\\.?") | |
| (looking-at "\\.[0-9]+") | |
| (looking-at "\\.[a-zA-Z_0-9]+") | |
| (looking-at "\\.")) | |
| (goto-char (match-end 0))) | |
| ((looking-at "^=begin") | |
| (if (re-search-forward "^=end" end t) | |
| (forward-line 1) | |
| (setq in-string (match-end 0)) | |
| (goto-char end))) | |
| ((looking-at "<<") | |
| (cond | |
| ((and (treetop-expr-beg 'heredoc) | |
| (looking-at "<<\\(-\\)?\\(\\([\"'`]\\)\\([^\n]+?\\)\\3\\|\\(?:\\sw\\|\\s_\\)+\\)")) | |
| (setq re (regexp-quote (or (match-string 4) (match-string 2)))) | |
| (if (match-beginning 1) (setq re (concat "\\s *" re))) | |
| (let* ((id-end (goto-char (match-end 0))) | |
| (line-end-position (save-excursion (end-of-line) (point))) | |
| (state (list in-string nest depth pcol indent))) | |
| ;; parse the rest of the line | |
| (while (and (> line-end-position (point)) | |
| (setq state (apply 'treetop-parse-partial | |
| line-end-position state)))) | |
| (setq in-string (car state) | |
| nest (nth 1 state) | |
| depth (nth 2 state) | |
| pcol (nth 3 state) | |
| indent (nth 4 state)) | |
| ;; skip heredoc section | |
| (if (re-search-forward (concat "^" re "$") end 'move) | |
| (forward-line 1) | |
| (setq in-string id-end) | |
| (goto-char end)))) | |
| (t | |
| (goto-char pnt)))) | |
| ((looking-at "^__END__$") | |
| (goto-char pnt)) | |
| ((looking-at treetop-here-doc-beg-re) | |
| (if (re-search-forward (treetop-here-doc-end-match) | |
| treetop-indent-point t) | |
| (forward-line 1) | |
| (setq in-string (match-end 0)) | |
| (goto-char treetop-indent-point))) | |
| (t | |
| (error (format "bad string %s" | |
| (buffer-substring (point) pnt) | |
| )))))) | |
| (list in-string nest depth pcol)) | |
| (defun treetop-parse-region (start end) | |
| (let (state) | |
| (save-excursion | |
| (if start | |
| (goto-char start) | |
| (treetop-beginning-of-indent)) | |
| (save-restriction | |
| (narrow-to-region (point) end) | |
| (while (and (> end (point)) | |
| (setq state (apply 'treetop-parse-partial end state)))))) | |
| (list (nth 0 state) ; in-string | |
| (car (nth 1 state)) ; nest | |
| (nth 2 state) ; depth | |
| (car (car (nth 3 state))) ; pcol | |
| ;(car (nth 5 state)) ; indent | |
| ))) | |
| (defun treetop-indent-size (pos nest) | |
| (+ pos (* (or nest 1) treetop-indent-level))) | |
| (defun treetop-calculate-indent (&optional parse-start) | |
| (save-excursion | |
| (beginning-of-line) | |
| (let ((treetop-indent-point (point)) | |
| (case-fold-search nil) | |
| state bol eol begin op-end | |
| (paren (progn (skip-syntax-forward " ") | |
| (and (char-after) (matching-paren (char-after))))) | |
| (indent 0)) | |
| (if parse-start | |
| (goto-char parse-start) | |
| (treetop-beginning-of-indent) | |
| (setq parse-start (point))) | |
| (back-to-indentation) | |
| (setq indent (current-column)) | |
| (setq state (treetop-parse-region parse-start treetop-indent-point)) | |
| (cond | |
| ((nth 0 state) ; within string | |
| (setq indent nil)) ; do nothing | |
| ((car (nth 1 state)) ; in paren | |
| (goto-char (setq begin (cdr (nth 1 state)))) | |
| (let ((deep (treetop-deep-indent-paren-p (car (nth 1 state))))) | |
| (if deep | |
| (cond ((and (eq deep t) (eq (car (nth 1 state)) paren)) | |
| (skip-syntax-backward " ") | |
| (setq indent (1- (current-column)))) | |
| ((let ((s (treetop-parse-region (point) treetop-indent-point))) | |
| (and (nth 2 s) (> (nth 2 s) 0) | |
| (or (goto-char (cdr (nth 1 s))) t))) | |
| (forward-word -1) | |
| (setq indent (treetop-indent-size (current-column) (nth 2 state)))) | |
| (t | |
| (setq indent (current-column)) | |
| (cond ((eq deep 'space)) | |
| (paren (setq indent (1- indent))) | |
| (t (setq indent (treetop-indent-size (1- indent) 1)))))) | |
| (if (nth 3 state) (goto-char (nth 3 state)) | |
| (goto-char parse-start) (back-to-indentation)) | |
| (setq indent (treetop-indent-size (current-column) (nth 2 state)))) | |
| (and (eq (car (nth 1 state)) paren) | |
| (treetop-deep-indent-paren-p (matching-paren paren)) | |
| (search-backward (char-to-string paren)) | |
| (setq indent (current-column))))) | |
| ((and (nth 2 state) (> (nth 2 state) 0)) ; in nest | |
| (if (null (cdr (nth 1 state))) | |
| (error "invalid nest")) | |
| (goto-char (cdr (nth 1 state))) | |
| (forward-word -1) ; skip back a keyword | |
| (setq begin (point)) | |
| (cond | |
| ((looking-at "do\\>[^_]") ; iter block is a special case | |
| (if (nth 3 state) (goto-char (nth 3 state)) | |
| (goto-char parse-start) (back-to-indentation)) | |
| (setq indent (treetop-indent-size (current-column) (nth 2 state)))) | |
| (t | |
| (setq indent (+ (current-column) treetop-indent-level))))) | |
| ((and (nth 2 state) (< (nth 2 state) 0)) ; in negative nest | |
| (setq indent (treetop-indent-size (current-column) (nth 2 state))))) | |
| (when indent | |
| (goto-char treetop-indent-point) | |
| (end-of-line) | |
| (setq eol (point)) | |
| (beginning-of-line) | |
| (cond | |
| ((and (not (treetop-deep-indent-paren-p paren)) | |
| (re-search-forward treetop-negative eol t)) | |
| (and (not (eq ?_ (char-after (match-end 0)))) | |
| (setq indent (- indent treetop-indent-level)))) | |
| ((and | |
| (save-excursion | |
| (beginning-of-line) | |
| (not (bobp))) | |
| (or (treetop-deep-indent-paren-p t) | |
| (null (car (nth 1 state))))) | |
| ;; goto beginning of non-empty no-comment line | |
| (let (end done) | |
| (while (not done) | |
| (skip-chars-backward " \t\n") | |
| (setq end (point)) | |
| (beginning-of-line) | |
| (if (re-search-forward "^\\s *#" end t) | |
| (beginning-of-line) | |
| (setq done t)))) | |
| (setq bol (point)) | |
| (end-of-line) | |
| ;; skip the comment at the end | |
| (skip-chars-backward " \t") | |
| (let (end (pos (point))) | |
| (beginning-of-line) | |
| (while (and (re-search-forward "#" pos t) | |
| (setq end (1- (point))) | |
| (or (treetop-special-char-p end) | |
| (and (setq state (treetop-parse-region parse-start end)) | |
| (nth 0 state)))) | |
| (setq end nil)) | |
| (goto-char (or end pos)) | |
| (skip-chars-backward " \t") | |
| (setq begin (if (and end (nth 0 state)) pos (cdr (nth 1 state)))) | |
| (setq state (treetop-parse-region parse-start (point)))) | |
| (or (bobp) (forward-char -1)) | |
| (and | |
| (or (and (looking-at treetop-symbol-re) | |
| (skip-chars-backward treetop-symbol-chars) | |
| (looking-at (concat "\\<\\(" treetop-block-hanging-re "\\)\\>")) | |
| (not (eq (point) (nth 3 state))) | |
| (save-excursion | |
| (goto-char (match-end 0)) | |
| (not (looking-at "[a-z_]")))) | |
| (and (looking-at treetop-operator-re) | |
| (not (treetop-special-char-p)) | |
| ;; operator at the end of line | |
| (let ((c (char-after (point)))) | |
| (and | |
| ;; (or (null begin) | |
| ;; (save-excursion | |
| ;; (goto-char begin) | |
| ;; (skip-chars-forward " \t") | |
| ;; (not (or (eolp) (looking-at "#") | |
| ;; (and (eq (car (nth 1 state)) ?{) | |
| ;; (looking-at "|")))))) | |
| (or (not (eq ?/ c)) | |
| (null (nth 0 (treetop-parse-region (or begin parse-start) (point))))) | |
| (or (not (eq ?| (char-after (point)))) | |
| (save-excursion | |
| (or (eolp) (forward-char -1)) | |
| (cond | |
| ((search-backward "|" nil t) | |
| (skip-chars-backward " \t\n") | |
| (and (not (eolp)) | |
| (progn | |
| (forward-char -1) | |
| (not (looking-at "{"))) | |
| (progn | |
| (forward-word -1) | |
| (not (looking-at "do\\>[^_]"))))) | |
| (t t)))) | |
| (not (eq ?, c)) | |
| (setq op-end t))))) | |
| (setq indent | |
| (cond | |
| ((and | |
| (null op-end) | |
| (not (looking-at (concat "\\<\\(" treetop-block-hanging-re "\\)\\>"))) | |
| (eq (treetop-deep-indent-paren-p t) 'space) | |
| (not (bobp))) | |
| (widen) | |
| (goto-char (or begin parse-start)) | |
| (skip-syntax-forward " ") | |
| (current-column)) | |
| ((car (nth 1 state)) indent) | |
| (t | |
| (+ indent treetop-indent-level)))))))) | |
| (goto-char treetop-indent-point) | |
| (beginning-of-line) | |
| (skip-syntax-forward " ") | |
| (if (looking-at "\\.[^.]") | |
| (+ indent treetop-indent-level) | |
| indent)))) | |
| (defun treetop-electric-brace (arg) | |
| (interactive "P") | |
| (insert-char last-command-char 1) | |
| (treetop-indent-line t) | |
| (delete-char -1) | |
| (self-insert-command (prefix-numeric-value arg))) | |
| (eval-when-compile | |
| (defmacro defun-region-command (func args &rest body) | |
| (let ((intr (car body))) | |
| (when (featurep 'xemacs) | |
| (if (stringp intr) (setq intr (cadr body))) | |
| (and (eq (car intr) 'interactive) | |
| (setq intr (cdr intr)) | |
| (setcar intr (concat "_" (car intr))))) | |
| (cons 'defun (cons func (cons args body)))))) | |
| (defun-region-command treetop-beginning-of-defun (&optional arg) | |
| "Move backward to next beginning-of-defun. | |
| With argument, do this that many times. | |
| Returns t unless search stops due to end of buffer." | |
| (interactive "p") | |
| (and (re-search-backward (concat "^\\(" treetop-block-beg-re "\\)\\b") | |
| nil 'move (or arg 1)) | |
| (progn (beginning-of-line) t))) | |
| (defun treetop-beginning-of-indent () | |
| (and (re-search-backward (concat "^\\(" treetop-indent-beg-re "\\)\\b") | |
| nil 'move) | |
| (progn | |
| (beginning-of-line) | |
| t))) | |
| (defun-region-command treetop-end-of-defun (&optional arg) | |
| "Move forward to next end of defun. | |
| An end of a defun is found by moving forward from the beginning of one." | |
| (interactive "p") | |
| (and (re-search-forward (concat "^\\(" treetop-block-end-re "\\)\\($\\|\\b[^_]\\)") | |
| nil 'move (or arg 1)) | |
| (progn (beginning-of-line) t)) | |
| (forward-line 1)) | |
| (defun treetop-move-to-block (n) | |
| (let (start pos done down (orig (point))) | |
| (setq start (treetop-calculate-indent)) | |
| (setq down (looking-at (if (< n 0) treetop-block-end-re | |
| (concat "\\<\\(" treetop-block-beg-re "\\)\\>")))) | |
| (while (and (not done) (not (if (< n 0) (bobp) (eobp)))) | |
| (forward-line n) | |
| (cond | |
| ((looking-at "^\\s *$")) | |
| ((looking-at "^\\s *#")) | |
| ((and (> n 0) (looking-at "^=begin\\>")) | |
| (re-search-forward "^=end\\>")) | |
| ((and (< n 0) (looking-at "^=end\\>")) | |
| (re-search-backward "^=begin\\>")) | |
| (t | |
| (setq pos (current-indentation)) | |
| (cond | |
| ((< start pos) | |
| (setq down t)) | |
| ((and down (= pos start)) | |
| (setq done t)) | |
| ((> start pos) | |
| (setq done t))))) | |
| (if done | |
| (save-excursion | |
| (back-to-indentation) | |
| (if (looking-at (concat "\\<\\(" treetop-block-mid-re "\\)\\>")) | |
| (setq done nil))))) | |
| (back-to-indentation) | |
| (when (< n 0) | |
| (let ((eol (point-at-eol)) state next) | |
| (if (< orig eol) (setq eol orig)) | |
| (setq orig (point)) | |
| (while (and (setq next (apply 'treetop-parse-partial eol state)) | |
| (< (point) eol)) | |
| (setq state next)) | |
| (when (cdaadr state) | |
| (goto-char (cdaadr state))) | |
| (backward-word))))) | |
| (defun-region-command treetop-beginning-of-block (&optional arg) | |
| "Move backward to next beginning-of-block" | |
| (interactive "p") | |
| (treetop-move-to-block (- (or arg 1)))) | |
| (defun-region-command treetop-end-of-block (&optional arg) | |
| "Move forward to next beginning-of-block" | |
| (interactive "p") | |
| (treetop-move-to-block (or arg 1))) | |
| (defun-region-command treetop-forward-sexp (&optional cnt) | |
| (interactive "p") | |
| (if (and (numberp cnt) (< cnt 0)) | |
| (treetop-backward-sexp (- cnt)) | |
| (let ((i (or cnt 1))) | |
| (condition-case nil | |
| (while (> i 0) | |
| (skip-syntax-forward " ") | |
| (if (looking-at ",\\s *") (goto-char (match-end 0))) | |
| (cond ((looking-at "\\?\\(\\\\[CM]-\\)*\\\\?\\S ") | |
| (goto-char (match-end 0))) | |
| ((progn | |
| (skip-chars-forward ",.:;|&^~=!?\\+\\-\\*") | |
| (looking-at "\\s(")) | |
| (goto-char (scan-sexps (point) 1))) | |
| ((and (looking-at (concat "\\<\\(" treetop-block-beg-re "\\)\\>")) | |
| (not (eq (char-before (point)) ?.)) | |
| (not (eq (char-before (point)) ?:))) | |
| (treetop-end-of-block) | |
| (forward-word 1)) | |
| ((looking-at "\\(\\$\\|@@?\\)?\\sw") | |
| (while (progn | |
| (while (progn (forward-word 1) (looking-at "_"))) | |
| (cond ((looking-at "::") (forward-char 2) t) | |
| ((> (skip-chars-forward ".") 0)) | |
| ((looking-at "\\?\\|!\\(=[~=>]\\|[^~=]\\)") | |
| (forward-char 1) nil))))) | |
| ((let (state expr) | |
| (while | |
| (progn | |
| (setq expr (or expr (treetop-expr-beg) | |
| (looking-at "%\\sw?\\Sw\\|[\"'`/]"))) | |
| (nth 1 (setq state (apply 'treetop-parse-partial nil state)))) | |
| (setq expr t) | |
| (skip-chars-forward "<")) | |
| (not expr)))) | |
| (setq i (1- i))) | |
| ((error) (forward-word 1))) | |
| i))) | |
| (defun-region-command treetop-backward-sexp (&optional cnt) | |
| (interactive "p") | |
| (if (and (numberp cnt) (< cnt 0)) | |
| (treetop-forward-sexp (- cnt)) | |
| (let ((i (or cnt 1))) | |
| (condition-case nil | |
| (while (> i 0) | |
| (skip-chars-backward " \t\n,.:;|&^~=!?\\+\\-\\*") | |
| (forward-char -1) | |
| (cond ((looking-at "\\s)") | |
| (goto-char (scan-sexps (1+ (point)) -1)) | |
| (case (char-before) | |
| (?% (forward-char -1)) | |
| ('(?q ?Q ?w ?W ?r ?x) | |
| (if (eq (char-before (1- (point))) ?%) (forward-char -2)))) | |
| nil) | |
| ((looking-at "\\s\"\\|\\\\\\S_") | |
| (let ((c (char-to-string (char-before (match-end 0))))) | |
| (while (and (search-backward c) | |
| (oddp (skip-chars-backward "\\"))))) | |
| nil) | |
| ((looking-at "\\s.\\|\\s\\") | |
| (if (treetop-special-char-p) (forward-char -1))) | |
| ((looking-at "\\s(") nil) | |
| (t | |
| (forward-char 1) | |
| (while (progn (forward-word -1) | |
| (case (char-before) | |
| (?_ t) | |
| (?. (forward-char -1) t) | |
| ((?$ ?@) | |
| (forward-char -1) | |
| (and (eq (char-before) (char-after)) (forward-char -1))) | |
| (?: | |
| (forward-char -1) | |
| (eq (char-before) :))))) | |
| (if (looking-at treetop-block-end-re) | |
| (treetop-beginning-of-block)) | |
| nil)) | |
| (setq i (1- i))) | |
| ((error))) | |
| i))) | |
| (defun treetop-reindent-then-newline-and-indent () | |
| (interactive "*") | |
| (newline) | |
| (save-excursion | |
| (end-of-line 0) | |
| (indent-according-to-mode) | |
| (delete-region (point) (progn (skip-chars-backward " \t") (point)))) | |
| (indent-according-to-mode)) | |
| (fset 'treetop-encomment-region (symbol-function 'comment-region)) | |
| (defun treetop-decomment-region (beg end) | |
| (interactive "r") | |
| (save-excursion | |
| (goto-char beg) | |
| (while (re-search-forward "^\\([ \t]*\\)#" end t) | |
| (replace-match "\\1" nil nil) | |
| (save-excursion | |
| (treetop-indent-line))))) | |
| (defun treetop-insert-end () | |
| (interactive) | |
| (insert "end") | |
| (treetop-indent-line t) | |
| (end-of-line)) | |
| (defun treetop-mark-defun () | |
| "Put mark at end of this Treetop function, point at beginning." | |
| (interactive) | |
| (push-mark (point)) | |
| (treetop-end-of-defun) | |
| (push-mark (point) nil t) | |
| (treetop-beginning-of-defun) | |
| (re-search-backward "^\n" (- (point) 1) t)) | |
| (defun treetop-indent-exp (&optional shutup-p) | |
| "Indent each line in the balanced expression following point syntactically. | |
| If optional SHUTUP-P is non-nil, no errors are signalled if no | |
| balanced expression is found." | |
| (interactive "*P") | |
| (let ((here (point-marker)) start top column (nest t)) | |
| (set-marker-insertion-type here t) | |
| (unwind-protect | |
| (progn | |
| (beginning-of-line) | |
| (setq start (point) top (current-indentation)) | |
| (while (and (not (eobp)) | |
| (progn | |
| (setq column (treetop-calculate-indent start)) | |
| (cond ((> column top) | |
| (setq nest t)) | |
| ((and (= column top) nest) | |
| (setq nest nil) t)))) | |
| (treetop-indent-to column) | |
| (beginning-of-line 2))) | |
| (goto-char here) | |
| (set-marker here nil)))) | |
| (defun treetop-add-log-current-method () | |
| "Return current method string." | |
| (condition-case nil | |
| (save-excursion | |
| (let (mname mlist (indent 0)) | |
| ;; get current method (or class/module) | |
| (if (re-search-backward | |
| (concat "^[ \t]*\\(def\\|class\\|module\\|grammar\\|rule\\)[ \t]+" | |
| "\\(" | |
| ;; \\. and :: for class method | |
| "\\([A-Za-z_]" treetop-symbol-re "*\\|\\.\\|::" "\\)" | |
| "+\\)") | |
| nil t) | |
| (progn | |
| (setq mname (match-string 2)) | |
| (unless (string-equal "def" (match-string 1)) | |
| (setq mlist (list mname) mname nil)) | |
| (goto-char (match-beginning 1)) | |
| (setq indent (current-column)) | |
| (beginning-of-line))) | |
| ;; nest class/module | |
| (while (and (> indent 0) | |
| (re-search-backward | |
| (concat | |
| "^[ \t]*\\(class\\|module\\|grammar\\|rule\\)[ \t]+" | |
| "\\([A-Z]" treetop-symbol-re "*\\)") | |
| nil t)) | |
| (goto-char (match-beginning 1)) | |
| (if (< (current-column) indent) | |
| (progn | |
| (setq mlist (cons (match-string 2) mlist)) | |
| (setq indent (current-column)) | |
| (beginning-of-line)))) | |
| (when mname | |
| (let ((mn (split-string mname "\\.\\|::"))) | |
| (if (cdr mn) | |
| (progn | |
| (cond | |
| ((string-equal "" (car mn)) | |
| (setq mn (cdr mn) mlist nil)) | |
| ((string-equal "self" (car mn)) | |
| (setq mn (cdr mn))) | |
| ((let ((ml (nreverse mlist))) | |
| (while ml | |
| (if (string-equal (car ml) (car mn)) | |
| (setq mlist (nreverse (cdr ml)) ml nil)) | |
| (or (setq ml (cdr ml)) (nreverse mlist)))))) | |
| (if mlist | |
| (setcdr (last mlist) mn) | |
| (setq mlist mn)) | |
| (setq mn (last mn 2)) | |
| (setq mname (concat "." (cadr mn))) | |
| (setcdr mn nil)) | |
| (setq mname (concat "#" mname))))) | |
| ;; generate string | |
| (if (consp mlist) | |
| (setq mlist (mapconcat (function identity) mlist "::"))) | |
| (if mname | |
| (if mlist (concat mlist mname) mname) | |
| mlist))))) | |
| (defun treetop-brace-to-do-end () | |
| (when (looking-at "{") | |
| (let ((orig (point)) (end (progn (treetop-forward-sexp) (point)))) | |
| (when (eq (char-before) ?\}) | |
| (delete-char -1) | |
| (if (eq (char-syntax (char-before)) ?w) | |
| (insert " ")) | |
| (insert "end") | |
| (if (eq (char-syntax (char-after)) ?w) | |
| (insert " ")) | |
| (goto-char orig) | |
| (delete-char 1) | |
| (if (eq (char-syntax (char-before)) ?w) | |
| (insert " ")) | |
| (insert "do") | |
| (when (looking-at "\\sw\\||") | |
| (insert " ") | |
| (backward-char)) | |
| t)))) | |
| (defun treetop-do-end-to-brace () | |
| (when (and (or (bolp) | |
| (not (memq (char-syntax (char-before)) '(?w ?_)))) | |
| (looking-at "\\<do\\(\\s \\|$\\)")) | |
| (let ((orig (point)) (end (progn (treetop-forward-sexp) (point)))) | |
| (backward-char 3) | |
| (when (looking-at treetop-block-end-re) | |
| (delete-char 3) | |
| (insert "}") | |
| (goto-char orig) | |
| (delete-char 2) | |
| (insert "{") | |
| (if (looking-at "\\s +|") | |
| (delete-char (- (match-end 0) (match-beginning 0) 1))) | |
| t)))) | |
| (defun treetop-toggle-block () | |
| (interactive) | |
| (or (treetop-brace-to-do-end) | |
| (treetop-do-end-to-brace))) | |
| (eval-when-compile | |
| (if (featurep 'font-lock) | |
| (defmacro eval-when-font-lock-available (&rest args) (cons 'progn args)) | |
| (defmacro eval-when-font-lock-available (&rest args)))) | |
| (eval-when-compile | |
| (if (featurep 'hilit19) | |
| (defmacro eval-when-hilit19-available (&rest args) (cons 'progn args)) | |
| (defmacro eval-when-hilit19-available (&rest args)))) | |
| (eval-when-font-lock-available | |
| (or (boundp 'font-lock-variable-name-face) | |
| (setq font-lock-variable-name-face font-lock-type-face)) | |
| (defconst treetop-font-lock-syntactic-keywords | |
| `( | |
| ;; #{ }, #$hoge, #@foo are not comments | |
| ("\\(#\\)[{$@]" 1 (1 . nil)) | |
| ;; the last $', $", $` in the respective string is not variable | |
| ;; the last ?', ?", ?` in the respective string is not ascii code | |
| ("\\(^\\|[\[ \t\n<+\(,=]\\)\\(['\"`]\\)\\(\\\\.\\|\\2\\|[^'\"`\n\\\\]\\)*?\\\\?[?$]\\(\\2\\)" | |
| (2 (7 . nil)) | |
| (4 (7 . nil))) | |
| ;; $' $" $` .... are variables | |
| ;; ?' ?" ?` are ascii codes | |
| ("\\(^\\|[^\\\\]\\)\\(\\\\\\\\\\)*[?$]\\([#\"'`]\\)" 3 (1 . nil)) | |
| ;; regexps | |
| ("\\(^\\|[[=(,~?:;<>]\\|\\(^\\|\\s \\)\\(if\\|elsif\\|unless\\|while\\|until\\|when\\|and\\|or\\|&&\\|||\\)\\|g?sub!?\\|scan\\|split!?\\)\\s *\\(/\\)[^/\n\\\\]*\\(\\\\.[^/\n\\\\]*\\)*\\(/\\)" | |
| (4 (7 . ?/)) | |
| (6 (7 . ?/))) | |
| ("^\\(=\\)begin\\(\\s \\|$\\)" 1 (7 . nil)) | |
| ("^\\(=\\)end\\(\\s \\|$\\)" 1 (7 . nil)) | |
| (,(concat treetop-here-doc-beg-re ".*\\(\n\\)") | |
| ,(+ 1 (regexp-opt-depth treetop-here-doc-beg-re)) | |
| (treetop-here-doc-beg-syntax)) | |
| (,treetop-here-doc-end-re 3 (treetop-here-doc-end-syntax)))) | |
| (unless (functionp 'syntax-ppss) | |
| (defun syntax-ppss (&optional pos) | |
| (parse-partial-sexp (point-min) (or pos (point))))) | |
| (defun treetop-in-ppss-context-p (context &optional ppss) | |
| (let ((ppss (or ppss (syntax-ppss (point))))) | |
| (if (cond | |
| ((eq context 'anything) | |
| (or (nth 3 ppss) | |
| (nth 4 ppss))) | |
| ((eq context 'string) | |
| (nth 3 ppss)) | |
| ((eq context 'heredoc) | |
| (and (nth 3 ppss) | |
| ;; If it's generic string, it's a heredoc and we don't care | |
| ;; See `parse-partial-sexp' | |
| (not (numberp (nth 3 ppss))))) | |
| ((eq context 'non-heredoc) | |
| (and (treetop-in-ppss-context-p 'anything) | |
| (not (treetop-in-ppss-context-p 'heredoc)))) | |
| ((eq context 'comment) | |
| (nth 4 ppss)) | |
| (t | |
| (error (concat | |
| "Internal error on `treetop-in-ppss-context-p': " | |
| "context name `" (symbol-name context) "' is unknown")))) | |
| t))) | |
| (defun treetop-in-here-doc-p () | |
| (save-excursion | |
| (let ((old-point (point)) (case-fold-search nil)) | |
| (beginning-of-line) | |
| (catch 'found-beg | |
| (while (and (re-search-backward treetop-here-doc-beg-re nil t) | |
| (not (treetop-singleton-class-p))) | |
| (if (not (or (treetop-in-ppss-context-p 'anything) | |
| (treetop-here-doc-find-end old-point))) | |
| (throw 'found-beg t))))))) | |
| (defun treetop-here-doc-find-end (&optional limit) | |
| "Expects the point to be on a line with one or more heredoc | |
| openers. Returns the buffer position at which all heredocs on the | |
| line are terminated, or nil if they aren't terminated before the | |
| buffer position `limit' or the end of the buffer." | |
| (save-excursion | |
| (beginning-of-line) | |
| (catch 'done | |
| (let ((eol (save-excursion (end-of-line) (point))) | |
| (case-fold-search nil) | |
| ;; Fake match data such that (match-end 0) is at eol | |
| (end-match-data (progn (looking-at ".*$") (match-data))) | |
| beg-match-data end-re) | |
| (while (re-search-forward treetop-here-doc-beg-re eol t) | |
| (setq beg-match-data (match-data)) | |
| (setq end-re (treetop-here-doc-end-match)) | |
| (set-match-data end-match-data) | |
| (goto-char (match-end 0)) | |
| (unless (re-search-forward end-re limit t) (throw 'done nil)) | |
| (setq end-match-data (match-data)) | |
| (set-match-data beg-match-data) | |
| (goto-char (match-end 0))) | |
| (set-match-data end-match-data) | |
| (goto-char (match-end 0)) | |
| (point))))) | |
| (defun treetop-here-doc-beg-syntax () | |
| (save-excursion | |
| (goto-char (match-beginning 0)) | |
| (unless (or (treetop-in-ppss-context-p 'non-heredoc) | |
| (treetop-in-here-doc-p)) | |
| (string-to-syntax "|")))) | |
| (defun treetop-here-doc-end-syntax () | |
| (let ((pss (syntax-ppss)) (case-fold-search nil)) | |
| (when (treetop-in-ppss-context-p 'heredoc pss) | |
| (save-excursion | |
| (goto-char (nth 8 pss)) ; Go to the beginning of heredoc. | |
| (let ((eol (point))) | |
| (beginning-of-line) | |
| (if (and (re-search-forward (treetop-here-doc-beg-match) eol t) ; If there is a heredoc that matches this line... | |
| (not (treetop-in-ppss-context-p 'anything)) ; And that's not inside a heredoc/string/comment... | |
| (progn (goto-char (match-end 0)) ; And it's the last heredoc on its line... | |
| (not (re-search-forward treetop-here-doc-beg-re eol t)))) | |
| (string-to-syntax "|"))))))) | |
| (eval-when-compile | |
| (put 'treetop-mode 'font-lock-defaults | |
| '((treetop-font-lock-keywords) | |
| nil nil nil | |
| beginning-of-line | |
| (font-lock-syntactic-keywords | |
| . treetop-font-lock-syntactic-keywords)))) | |
| (defun treetop-font-lock-docs (limit) | |
| (if (re-search-forward "^=begin\\(\\s \\|$\\)" limit t) | |
| (let (beg) | |
| (beginning-of-line) | |
| (setq beg (point)) | |
| (forward-line 1) | |
| (if (re-search-forward "^=end\\(\\s \\|$\\)" limit t) | |
| (progn | |
| (set-match-data (list beg (point))) | |
| t))))) | |
| (defun treetop-font-lock-maybe-docs (limit) | |
| (let (beg) | |
| (save-excursion | |
| (if (and (re-search-backward "^=\\(begin\\|end\\)\\(\\s \\|$\\)" nil t) | |
| (string= (match-string 1) "begin")) | |
| (progn | |
| (beginning-of-line) | |
| (setq beg (point))))) | |
| (if (and beg (and (re-search-forward "^=\\(begin\\|end\\)\\(\\s \\|$\\)" nil t) | |
| (string= (match-string 1) "end"))) | |
| (progn | |
| (set-match-data (list beg (point))) | |
| t) | |
| nil))) | |
| (defvar treetop-font-lock-syntax-table | |
| (let* ((tbl (copy-syntax-table treetop-mode-syntax-table))) | |
| (modify-syntax-entry ?_ "w" tbl) | |
| tbl)) | |
| (defconst treetop-font-lock-keywords | |
| (list | |
| ;; functions | |
| '("^\\s *def\\s +\\([^( \t\n]+\\)" | |
| 1 font-lock-function-name-face) | |
| ;; keywords | |
| (cons (concat | |
| "\\(^\\|[^_:.@$]\\|\\.\\.\\)\\b\\(defined\\?\\|" | |
| (regexp-opt | |
| '("alias" | |
| "and" | |
| "begin" | |
| "break" | |
| "case" | |
| "catch" | |
| "class" | |
| "def" | |
| "do" | |
| "elsif" | |
| "else" | |
| "fail" | |
| "ensure" | |
| "for" | |
| "end" | |
| "grammar" | |
| "if" | |
| "in" | |
| "module" | |
| "next" | |
| "not" | |
| "or" | |
| "raise" | |
| "redo" | |
| "rescue" | |
| "retry" | |
| "return" | |
| "rule" | |
| "then" | |
| "throw" | |
| "super" | |
| "unless" | |
| "undef" | |
| "until" | |
| "when" | |
| "while" | |
| "yield" | |
| ) | |
| t) | |
| "\\)" | |
| treetop-keyword-end-re) | |
| 2) | |
| ;; here-doc beginnings | |
| (list treetop-here-doc-beg-re 0 'font-lock-string-face) | |
| ;; variables | |
| '("\\(^\\|[^_:.@$]\\|\\.\\.\\)\\b\\(nil\\|self\\|true\\|false\\)\\>" | |
| 2 font-lock-variable-name-face) | |
| ;; variables | |
| '("\\(\\$\\([^a-zA-Z0-9 \n]\\|[0-9]\\)\\)\\W" | |
| 1 font-lock-variable-name-face) | |
| '("\\(\\$\\|@\\|@@\\)\\(\\w\\|_\\)+" | |
| 0 font-lock-variable-name-face) | |
| ;; embedded document | |
| '(treetop-font-lock-docs | |
| 0 font-lock-comment-face t) | |
| '(treetop-font-lock-maybe-docs | |
| 0 font-lock-comment-face t) | |
| ;; general delimited string | |
| '("\\(^\\|[[ \t\n<+(,=]\\)\\(%[xrqQwW]?\\([^<[{(a-zA-Z0-9 \n]\\)[^\n\\\\]*\\(\\\\.[^\n\\\\]*\\)*\\(\\3\\)\\)" | |
| (2 font-lock-string-face)) | |
| ;; constants | |
| '("\\(^\\|[^_]\\)\\b\\([A-Z]+\\(\\w\\|_\\)*\\)" | |
| 2 font-lock-type-face) | |
| ;; symbols | |
| '("\\(^\\|[^:]\\)\\(:\\([-+~]@?\\|[/%&|^`]\\|\\*\\*?\\|<\\(<\\|=>?\\)?\\|>[>=]?\\|===?\\|=~\\|![~=]?\\|\\[\\]=?\\|\\(\\w\\|_\\)+\\([!?=]\\|\\b_*\\)\\|#{[^}\n\\\\]*\\(\\\\.[^}\n\\\\]*\\)*}\\)\\)" | |
| 2 font-lock-reference-face) | |
| '("\\(^\\s *\\|[\[\{\(,]\\s *\\|\\sw\\s +\\)\\(\\(\\sw\\|_\\)+\\):[^:]" 2 font-lock-reference-face) | |
| ;; expression expansion | |
| '("#\\({[^}\n\\\\]*\\(\\\\.[^}\n\\\\]*\\)*}\\|\\(\\$\\|@\\|@@\\)\\(\\w\\|_\\)+\\)" | |
| 0 font-lock-variable-name-face t) | |
| ;; warn lower camel case | |
| ;'("\\<[a-z]+[a-z0-9]*[A-Z][A-Za-z0-9]*\\([!?]?\\|\\>\\)" | |
| ; 0 font-lock-warning-face) | |
| ) | |
| "*Additional expressions to highlight in treetop mode.")) | |
| (eval-when-hilit19-available | |
| (hilit-set-mode-patterns | |
| 'treetop-mode | |
| '(("[^$\\?]\\(\"[^\\\"]*\\(\\\\\\(.\\|\n\\)[^\\\"]*\\)*\"\\)" 1 string) | |
| ("[^$\\?]\\('[^\\']*\\(\\\\\\(.\\|\n\\)[^\\']*\\)*'\\)" 1 string) | |
| ("[^$\\?]\\(`[^\\`]*\\(\\\\\\(.\\|\n\\)[^\\`]*\\)*`\\)" 1 string) | |
| ("^\\s *#.*$" nil comment) | |
| ("[^$@?\\]\\(#[^$@{\n].*$\\)" 1 comment) | |
| ("[^a-zA-Z_]\\(\\?\\(\\\\[CM]-\\)*.\\)" 1 string) | |
| ("^\\s *\\(require\\|load\\).*$" nil include) | |
| ("^\\s *\\(include\\|alias\\|undef\\).*$" nil decl) | |
| ("^\\s *\\<\\(class\\|def\\|module\\|grammar\\|rule\\)\\>" "[)\n;]" defun) | |
| ("[^_]\\<\\(begin\\|case\\|else\\|elsif\\|end\\|ensure\\|for\\|if\\|unless\\|rescue\\|then\\|when\\|while\\|until\\|do\\|yield\\)\\>\\([^_]\\|$\\)" 1 defun) | |
| ("[^_]\\<\\(and\\|break\\|next\\|raise\\|fail\\|in\\|not\\|or\\|redo\\|retry\\|return\\|super\\|yield\\|catch\\|throw\\|self\\|nil\\)\\>\\([^_]\\|$\\)" 1 keyword) | |
| ("\\$\\(.\\|\\sw+\\)" nil type) | |
| ("[$@].[a-zA-Z_0-9]*" nil struct) | |
| ("^__END__" nil label)))) | |
| ;;;###autoload | |
| (defun treetop-mode () | |
| "Major mode for editing treetop scripts. | |
| \\[treetop-indent-command] properly indents subexpressions of multi-line | |
| class, module, grammar, rule, def, if, while, for, do, and case statements, taking | |
| nesting into account. | |
| The variable treetop-indent-level controls the amount of indentation. | |
| \\{treetop-mode-map}" | |
| (interactive) | |
| (kill-all-local-variables) | |
| (use-local-map treetop-mode-map) | |
| (setq mode-name "Treetop") | |
| (setq major-mode 'treetop-mode) | |
| (treetop-mode-variables) | |
| (make-local-variable 'imenu-create-index-function) | |
| (setq imenu-create-index-function 'treetop-imenu-create-index) | |
| (make-local-variable 'add-log-current-defun-function) | |
| (setq add-log-current-defun-function 'treetop-add-log-current-method) | |
| (add-hook | |
| (cond ((boundp 'before-save-hook) | |
| (make-local-variable 'before-save-hook) | |
| 'before-save-hook) | |
| ((boundp 'write-contents-functions) 'write-contents-functions) | |
| ((boundp 'write-contents-hooks) 'write-contents-hooks)) | |
| 'treetop-mode-set-encoding) | |
| (set (make-local-variable 'font-lock-defaults) '((treetop-font-lock-keywords) nil nil)) | |
| (set (make-local-variable 'font-lock-keywords) treetop-font-lock-keywords) | |
| (set (make-local-variable 'font-lock-syntax-table) treetop-font-lock-syntax-table) | |
| (set (make-local-variable 'font-lock-syntactic-keywords) treetop-font-lock-syntactic-keywords) | |
| (if (fboundp 'run-mode-hooks) | |
| (run-mode-hooks 'treetop-mode-hook) | |
| (run-hooks 'treetop-mode-hook))) | |
| (provide 'treetop-mode) |
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