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Diffstat (limited to 'ruby_1_8_6/misc/ruby-mode.el')
| -rw-r--r-- | ruby_1_8_6/misc/ruby-mode.el | 1207 |
1 files changed, 1207 insertions, 0 deletions
diff --git a/ruby_1_8_6/misc/ruby-mode.el b/ruby_1_8_6/misc/ruby-mode.el new file mode 100644 index 0000000000..25c6b3008d --- /dev/null +++ b/ruby_1_8_6/misc/ruby-mode.el @@ -0,0 +1,1207 @@ +;;; +;;; ruby-mode.el - +;;; +;;; $Author$ +;;; $Date$ +;;; created at: Fri Feb 4 14:49:13 JST 1994 +;;; + +(defconst ruby-mode-revision "$Revision$") + +(defconst ruby-mode-version + (progn + (string-match "[0-9.]+" ruby-mode-revision) + (substring ruby-mode-revision (match-beginning 0) (match-end 0)))) + +(defconst ruby-block-beg-re + "class\\|module\\|def\\|if\\|unless\\|case\\|while\\|until\\|for\\|begin\\|do" + ) + +(defconst ruby-non-block-do-re + "\\(while\\|until\\|for\\|rescue\\)\\>[^_]" + ) + +(defconst ruby-indent-beg-re + "\\(\\s *\\(class\\|module\\|def\\)\\)\\|if\\|unless\\|case\\|while\\|until\\|for\\|begin" + ) + +(defconst ruby-modifier-beg-re + "if\\|unless\\|while\\|until" + ) + +(defconst ruby-modifier-re + (concat ruby-modifier-beg-re "\\|rescue") + ) + +(defconst ruby-block-mid-re + "then\\|else\\|elsif\\|when\\|rescue\\|ensure" + ) + +(defconst ruby-block-op-re + "and\\|or\\|not" + ) + +(defconst ruby-block-hanging-re + (concat ruby-modifier-beg-re "\\|" ruby-block-op-re) + ) + +(defconst ruby-block-end-re "\\<end\\>") + +(defconst ruby-here-doc-beg-re + "<<\\(-\\)?\\(\\([a-zA-Z0-9_]+\\)\\|[\"]\\([^\"]+\\)[\"]\\|[']\\([^']+\\)[']\\)") + +(defun ruby-here-doc-end-match () + (concat "^" + (if (match-string 1) "[ \t]*" nil) + (regexp-quote + (or (match-string 3) + (match-string 4) + (match-string 5))))) + +(defconst ruby-delimiter + (concat "[?$/%(){}#\"'`.:]\\|<<\\|\\[\\|\\]\\|\\<\\(" + ruby-block-beg-re + "\\)\\>\\|" ruby-block-end-re + "\\|^=begin\\|" ruby-here-doc-beg-re) + ) + +(defconst ruby-negative + (concat "^[ \t]*\\(\\(" ruby-block-mid-re "\\)\\>\\|" + ruby-block-end-re "\\|}\\|\\]\\)") + ) + +(defconst ruby-operator-chars "-,.+*/%&|^~=<>:") +(defconst ruby-operator-re (concat "[" ruby-operator-chars "]")) + +(defconst ruby-symbol-chars "a-zA-Z0-9_") +(defconst ruby-symbol-re (concat "[" ruby-symbol-chars "]")) + +(defvar ruby-mode-abbrev-table nil + "Abbrev table in use in ruby-mode buffers.") + +(define-abbrev-table 'ruby-mode-abbrev-table ()) + +(defvar ruby-mode-map nil "Keymap used in ruby mode.") + +(if ruby-mode-map + nil + (setq ruby-mode-map (make-sparse-keymap)) + (define-key ruby-mode-map "{" 'ruby-electric-brace) + (define-key ruby-mode-map "}" 'ruby-electric-brace) + (define-key ruby-mode-map "\e\C-a" 'ruby-beginning-of-defun) + (define-key ruby-mode-map "\e\C-e" 'ruby-end-of-defun) + (define-key ruby-mode-map "\e\C-b" 'ruby-backward-sexp) + (define-key ruby-mode-map "\e\C-f" 'ruby-forward-sexp) + (define-key ruby-mode-map "\e\C-p" 'ruby-beginning-of-block) + (define-key ruby-mode-map "\e\C-n" 'ruby-end-of-block) + (define-key ruby-mode-map "\e\C-h" 'ruby-mark-defun) + (define-key ruby-mode-map "\e\C-q" 'ruby-indent-exp) + (define-key ruby-mode-map "\t" 'ruby-indent-command) + (define-key ruby-mode-map "\C-c\C-e" 'ruby-insert-end) + (define-key ruby-mode-map "\C-j" 'ruby-reindent-then-newline-and-indent) + (define-key ruby-mode-map "\C-m" 'newline)) + +(defvar ruby-mode-syntax-table nil + "Syntax table in use in ruby-mode buffers.") + +(if ruby-mode-syntax-table + () + (setq ruby-mode-syntax-table (make-syntax-table)) + (modify-syntax-entry ?\' "\"" ruby-mode-syntax-table) + (modify-syntax-entry ?\" "\"" ruby-mode-syntax-table) + (modify-syntax-entry ?\` "\"" ruby-mode-syntax-table) + (modify-syntax-entry ?# "<" ruby-mode-syntax-table) + (modify-syntax-entry ?\n ">" ruby-mode-syntax-table) + (modify-syntax-entry ?\\ "\\" ruby-mode-syntax-table) + (modify-syntax-entry ?$ "." ruby-mode-syntax-table) + (modify-syntax-entry ?? "_" ruby-mode-syntax-table) + (modify-syntax-entry ?_ "_" ruby-mode-syntax-table) + (modify-syntax-entry ?< "." ruby-mode-syntax-table) + (modify-syntax-entry ?> "." ruby-mode-syntax-table) + (modify-syntax-entry ?& "." ruby-mode-syntax-table) + (modify-syntax-entry ?| "." ruby-mode-syntax-table) + (modify-syntax-entry ?% "." ruby-mode-syntax-table) + (modify-syntax-entry ?= "." ruby-mode-syntax-table) + (modify-syntax-entry ?/ "." ruby-mode-syntax-table) + (modify-syntax-entry ?+ "." ruby-mode-syntax-table) + (modify-syntax-entry ?* "." ruby-mode-syntax-table) + (modify-syntax-entry ?- "." ruby-mode-syntax-table) + (modify-syntax-entry ?\; "." ruby-mode-syntax-table) + (modify-syntax-entry ?\( "()" ruby-mode-syntax-table) + (modify-syntax-entry ?\) ")(" ruby-mode-syntax-table) + (modify-syntax-entry ?\{ "(}" ruby-mode-syntax-table) + (modify-syntax-entry ?\} "){" ruby-mode-syntax-table) + (modify-syntax-entry ?\[ "(]" ruby-mode-syntax-table) + (modify-syntax-entry ?\] ")[" ruby-mode-syntax-table) + ) + +(defcustom ruby-indent-tabs-mode nil + "*Indentation can insert tabs in ruby mode if this is non-nil." + :type 'boolean :group 'ruby) + +(defcustom ruby-indent-level 2 + "*Indentation of ruby statements." + :type 'integer :group 'ruby) + +(defcustom ruby-comment-column 32 + "*Indentation column of comments." + :type 'integer :group 'ruby) + +(defcustom ruby-deep-arglist t + "*Deep indent lists in parenthesis when non-nil. +Also ignores spaces after parenthesis when 'space." + :group 'ruby) + +(defcustom ruby-deep-indent-paren '(?\( ?\[ ?\] t) + "*Deep indent lists in parenthesis when non-nil. t means continuous line. +Also ignores spaces after parenthesis when 'space." + :group 'ruby) + +(defcustom ruby-deep-indent-paren-style 'space + "Default deep indent style." + :options '(t nil space) :group 'ruby) + +(eval-when-compile (require 'cl)) +(defun ruby-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 *<<\\)?\\|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) + (ruby-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)) + (ruby-accurate-end-of-block end) + (setq beg (point)) + (setq index-alist + (nconc (ruby-imenu-create-index-in-block + (concat name (if sing "." "#")) + next beg) index-alist)) + (goto-char beg)))) + index-alist)) + +(defun ruby-imenu-create-index () + (nreverse (ruby-imenu-create-index-in-block nil (point-min) nil))) + +(defun ruby-accurate-end-of-block (&optional end) + (let (state) + (or end (setq end (point-max))) + (while (and (setq state (apply 'ruby-parse-partial end state)) + (>= (nth 2 state) 0) (< (point) end))))) + +(defun ruby-mode-variables () + (set-syntax-table ruby-mode-syntax-table) + (setq local-abbrev-table ruby-mode-abbrev-table) + (make-local-variable 'indent-line-function) + (setq indent-line-function 'ruby-indent-line) + (make-local-variable 'require-final-newline) + (setq require-final-newline t) + (make-variable-buffer-local 'comment-start) + (setq comment-start "# ") + (make-variable-buffer-local 'comment-end) + (setq comment-end "") + (make-variable-buffer-local 'comment-column) + (setq comment-column ruby-comment-column) + (make-variable-buffer-local 'comment-start-skip) + (setq comment-start-skip "#+ *") + (setq indent-tabs-mode ruby-indent-tabs-mode) + (make-local-variable 'parse-sexp-ignore-comments) + (setq parse-sexp-ignore-comments 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)) + +;;;###autoload +(defun ruby-mode () + "Major mode for editing ruby scripts. +\\[ruby-indent-command] properly indents subexpressions of multi-line +class, module, def, if, while, for, do, and case statements, taking +nesting into account. + +The variable ruby-indent-level controls the amount of indentation. +\\{ruby-mode-map}" + (interactive) + (kill-all-local-variables) + (use-local-map ruby-mode-map) + (setq mode-name "Ruby") + (setq major-mode 'ruby-mode) + (ruby-mode-variables) + + (make-local-variable 'imenu-create-index-function) + (setq imenu-create-index-function 'ruby-imenu-create-index) + + (make-local-variable 'add-log-current-defun-function) + (setq add-log-current-defun-function 'ruby-add-log-current-method) + + (run-hooks 'ruby-mode-hook)) + +(defun ruby-current-indentation () + (save-excursion + (beginning-of-line) + (back-to-indentation) + (current-column))) + +(defun ruby-indent-line (&optional flag) + "Correct indentation of the current ruby line." + (ruby-indent-to (ruby-calculate-indent))) + +(defun ruby-indent-command () + (interactive) + (ruby-indent-line t)) + +(defun ruby-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 ruby-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 ruby-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) + (ruby-special-char-p)))) + nil) + ((and (eq option 'heredoc) (< space 0)) t) + ((or (looking-at ruby-operator-re) + (looking-at "[\\[({,;]") + (and (looking-at "[!?]") + (or (not (eq option 'modifier)) + (bolp) + (save-excursion (forward-char -1) (looking-at "\\Sw$")))) + (and (looking-at ruby-symbol-re) + (skip-chars-backward ruby-symbol-chars) + (cond + ((or (looking-at (concat "\\<\\(" ruby-block-beg-re + "|" ruby-block-op-re + "|" ruby-block-mid-re "\\)\\>"))) + (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 ruby-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) + (ruby-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 ruby-deep-indent-paren-p (c) + (cond ((listp ruby-deep-indent-paren) + (let ((deep (assoc c ruby-deep-indent-paren))) + (cond (deep + (or (cdr deep) ruby-deep-indent-paren-style)) + ((memq c ruby-deep-indent-paren) + ruby-deep-indent-paren-style)))) + ((eq c ruby-deep-indent-paren) ruby-deep-indent-paren-style) + ((eq c ?\( ) ruby-deep-arglist))) + +(defun ruby-parse-partial (&optional end in-string nest depth pcol indent) + (or depth (setq depth 0)) + (or indent (setq indent 0)) + (when (re-search-forward ruby-delimiter end 'move) + (let ((pnt (point)) w re expand) + (goto-char (match-beginning 0)) + (cond + ((and (memq (char-before) '(?@ ?$)) (looking-at "\\sw")) + (goto-char pnt)) + ((looking-at "[\"`]") ;skip string + (cond + ((and (not (eobp)) + (ruby-forward-string (buffer-substring (point) (1+ (point))) end t t)) + nil) + (t + (setq in-string (point)) + (goto-char end)))) + ((looking-at "'") + (cond + ((and (not (eobp)) + (re-search-forward "[^\\]\\(\\\\\\\\\\)*'" end t)) + nil) + (t + (setq in-string (point)) + (goto-char end)))) + ((looking-at "/=") + (goto-char pnt)) + ((looking-at "/") + (cond + ((and (not (eobp)) (ruby-expr-beg 'expr-re)) + (if (ruby-forward-string "/" end t t) + nil + (setq in-string (point)) + (goto-char end))) + (t + (goto-char pnt)))) + ((looking-at "%") + (cond + ((and (not (eobp)) + (ruby-expr-beg 'expr-qstr) + (not (looking-at "%=")) + (looking-at "%[QqrxWw]?\\([^a-zA-Z0-9 \t\n]\\)")) + (goto-char (match-beginning 1)) + (setq expand (not (memq (char-before) '(?q ?w)))) + (setq w (match-string 1)) + (cond + ((string= w "[") (setq re "][")) + ((string= w "{") (setq re "}{")) + ((string= w "(") (setq re ")(")) + ((string= w "<") (setq re "><")) + ((and expand (string= w "\\")) + (setq w (concat "\\" w)))) + (unless (cond (re (ruby-forward-string re end t expand)) + (expand (ruby-forward-string w end t t)) + (t (re-search-forward + (if (string= w "\\") + "\\\\[^\\]*\\\\" + (concat "[^\\]\\(\\\\\\\\\\)*" w)) + end t))) + (setq in-string (point)) + (goto-char end))) + (t + (goto-char pnt)))) + ((looking-at "\\?") ;skip ?char + (cond + ((and (ruby-expr-beg) + (looking-at "?\\(\\\\C-\\|\\\\M-\\)*\\\\?.")) + (goto-char (match-end 0))) + (t + (goto-char pnt)))) + ((looking-at "\\$") ;skip $char + (goto-char pnt) + (forward-char 1)) + ((looking-at "#") ;skip comment + (forward-line 1) + (goto-char (point)) + ) + ((looking-at "[\\[{(]") + (let ((deep (ruby-deep-indent-paren-p (char-after)))) + (if (and deep (or (not (eq (char-after) ?\{)) (ruby-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 (ruby-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 ruby-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 "\\<\\(" ruby-block-beg-re "\\)\\>")) + (and + (save-match-data + (or (not (looking-at "do\\>[^_]")) + (save-excursion + (back-to-indentation) + (not (looking-at ruby-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)) + (skip-chars-forward " \t") + (goto-char (match-beginning 0)) + (or (not (looking-at ruby-modifier-re)) + (ruby-expr-beg 'modifier)) + (goto-char pnt) + (setq nest (cons (cons nil pnt) nest)) + (setq depth (1+ depth))) + (goto-char pnt)) + ((looking-at ":\\(['\"]\\)\\(\\\\.\\|[^\\\\]\\)*\\1") + (goto-char (match-end 0))) + ((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 (ruby-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 'ruby-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 ruby-here-doc-beg-re) + (if (re-search-forward (ruby-here-doc-end-match) + indent-point t) + (forward-line 1) + (setq in-string (match-end 0)) + (goto-char indent-point))) + (t + (error (format "bad string %s" + (buffer-substring (point) pnt) + )))))) + (list in-string nest depth pcol)) + +(defun ruby-parse-region (start end) + (let (state) + (save-excursion + (if start + (goto-char start) + (ruby-beginning-of-indent)) + (save-restriction + (narrow-to-region (point) end) + (while (and (> end (point)) + (setq state (apply 'ruby-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 ruby-indent-size (pos nest) + (+ pos (* (or nest 1) ruby-indent-level))) + +(defun ruby-calculate-indent (&optional parse-start) + (save-excursion + (beginning-of-line) + (let ((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) + (ruby-beginning-of-indent) + (setq parse-start (point))) + (back-to-indentation) + (setq indent (current-column)) + (setq state (ruby-parse-region parse-start 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 (ruby-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 (ruby-parse-region (point) indent-point))) + (and (nth 2 s) (> (nth 2 s) 0) + (or (goto-char (cdr (nth 1 s))) t))) + (forward-word -1) + (setq indent (ruby-indent-size (current-column) (nth 2 state)))) + (t + (setq indent (current-column)) + (cond ((eq deep 'space)) + (paren (setq indent (1- indent))) + (t (setq indent (ruby-indent-size (1- indent) 1)))))) + (if (nth 3 state) (goto-char (nth 3 state)) + (goto-char parse-start) (back-to-indentation)) + (setq indent (ruby-indent-size (current-column) (nth 2 state)))) + (and (eq (car (nth 1 state)) paren) + (ruby-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 (ruby-indent-size (current-column) (nth 2 state)))) + (t + (setq indent (+ (current-column) ruby-indent-level))))) + + ((and (nth 2 state) (< (nth 2 state) 0)) ; in negative nest + (setq indent (ruby-indent-size (current-column) (nth 2 state))))) + (when indent + (goto-char indent-point) + (end-of-line) + (setq eol (point)) + (beginning-of-line) + (cond + ((and (not (ruby-deep-indent-paren-p paren)) + (re-search-forward ruby-negative eol t)) + (and (not (eq ?_ (char-after (match-end 0)))) + (setq indent (- indent ruby-indent-level)))) + ((and + (save-excursion + (beginning-of-line) + (not (bobp))) + (or (ruby-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 (ruby-special-char-p end) + (and (setq state (ruby-parse-region parse-start end)) + (nth 0 state)))) + (setq end nil)) + (goto-char (or end pos)) + (skip-chars-backward " \t") + (setq begin (if (nth 0 state) pos (cdr (nth 1 state)))) + (setq state (ruby-parse-region parse-start (point)))) + (or (bobp) (forward-char -1)) + (and + (or (and (looking-at ruby-symbol-re) + (skip-chars-backward ruby-symbol-chars) + (looking-at (concat "\\<\\(" ruby-block-hanging-re "\\)\\>")) + (not (eq (point) (nth 3 state))) + (save-excursion + (goto-char (match-end 0)) + (not (looking-at "[a-z_]")))) + (and (looking-at ruby-operator-re) + (not (ruby-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 (ruby-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 "\\<\\(" ruby-block-hanging-re "\\)\\>"))) + (eq (ruby-deep-indent-paren-p t) 'space) + (not (bobp))) + (save-excursion + (widen) + (goto-char (or begin parse-start)) + (skip-syntax-forward " ") + (current-column))) + ((car (nth 1 state)) indent) + (t + (+ indent ruby-indent-level)))))))) + indent))) + +(defun ruby-electric-brace (arg) + (interactive "P") + (insert-char last-command-char 1) + (ruby-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 ruby-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 "^\\(" ruby-block-beg-re "\\)\\b") + nil 'move (or arg 1)) + (progn (beginning-of-line) t))) + +(defun ruby-beginning-of-indent () + (and (re-search-backward (concat "^\\(" ruby-indent-beg-re "\\)\\b") + nil 'move) + (progn + (beginning-of-line) + t))) + +(defun-region-command ruby-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 "^\\(" ruby-block-end-re "\\)\\($\\|\\b[^_]\\)") + nil 'move (or arg 1)) + (progn (beginning-of-line) t)) + (forward-line 1)) + +(defun ruby-move-to-block (n) + (let (start pos done down) + (setq start (ruby-calculate-indent)) + (setq down (looking-at (if (< n 0) ruby-block-end-re + (concat "\\<\\(" ruby-block-beg-re "\\)\\>")))) + (while (and (not done) (not (if (< n 0) (bobp) (eobp)))) + (forward-line n) + (cond + ((looking-at "^\\s *$")) + ((looking-at "^\\s *#")) + ((and (> n 0) (looking-at "^=begin\\>")) + (re-search-forward "^=end\\>")) + ((and (< n 0) (looking-at "^=end\\>")) + (re-search-backward "^=begin\\>")) + (t + (setq pos (current-indentation)) + (cond + ((< start pos) + (setq down t)) + ((and down (= pos start)) + (setq done t)) + ((> start pos) + (setq done t))))) + (if done + (save-excursion + (back-to-indentation) + (if (looking-at (concat "\\<\\(" ruby-block-mid-re "\\)\\>")) + (setq done nil)))))) + (back-to-indentation)) + +(defun-region-command ruby-beginning-of-block (&optional arg) + "Move backward to next beginning-of-block" + (interactive "p") + (ruby-move-to-block (- (or arg 1)))) + +(defun-region-command ruby-end-of-block (&optional arg) + "Move forward to next beginning-of-block" + (interactive "p") + (ruby-move-to-block (or arg 1))) + +(defun-region-command ruby-forward-sexp (&optional cnt) + (interactive "p") + (if (and (numberp cnt) (< cnt 0)) + (ruby-backward-sexp (- cnt)) + (let ((i (or cnt 1))) + (condition-case nil + (while (> i 0) + (skip-syntax-forward " ") + (cond ((looking-at "\\?\\(\\\\[CM]-\\)*\\\\?\\S ") + (goto-char (match-end 0))) + ((progn + (skip-chars-forward ",.:;|&^~=!?\\+\\-\\*") + (looking-at "\\s(")) + (goto-char (scan-sexps (point) 1))) + ((and (looking-at (concat "\\<\\(" ruby-block-beg-re "\\)\\>")) + (not (eq (char-before (point)) ?.)) + (not (eq (char-before (point)) ?:))) + (ruby-end-of-block) + (forward-word 1)) + ((looking-at "\\(\\$\\|@@?\\)?\\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 (ruby-expr-beg) + (looking-at "%\\sw?\\Sw\\|[\"'`/]"))) + (nth 1 (setq state (apply 'ruby-parse-partial nil state)))) + (setq expr t) + (skip-chars-forward "<")) + (not expr)))) + (setq i (1- i))) + ((error) (forward-word 1))) + i))) + +(defun-region-command ruby-backward-sexp (&optional cnt) + (interactive "p") + (if (and (numberp cnt) (< cnt 0)) + (ruby-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 (ruby-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 ruby-block-end-re) + (ruby-beginning-of-block)) + nil)) + (setq i (1- i))) + ((error))) + i))) + +(defun ruby-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 'ruby-encomment-region (symbol-function 'comment-region)) + +(defun ruby-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 + (ruby-indent-line))))) + +(defun ruby-insert-end () + (interactive) + (insert "end") + (ruby-indent-line t) + (end-of-line)) + +(defun ruby-mark-defun () + "Put mark at end of this Ruby function, point at beginning." + (interactive) + (push-mark (point)) + (ruby-end-of-defun) + (push-mark (point) nil t) + (ruby-beginning-of-defun) + (re-search-backward "^\n" (- (point) 1) t)) + +(defun ruby-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 (ruby-calculate-indent start)) + (cond ((> column top) + (setq nest t)) + ((and (= column top) nest) + (setq nest nil) t)))) + (ruby-indent-to column) + (beginning-of-line 2))) + (goto-char here) + (set-marker here nil)))) + +(defun ruby-add-log-current-method () + "Return current method string." + (condition-case nil + (save-excursion + (let ((mlist nil) (indent 0)) + ;; get current method (or class/module) + (if (re-search-backward + (concat "^[ \t]*\\(def\\|class\\|module\\)[ \t]+" + "\\(" + ;; \\. for class method + "\\(" ruby-symbol-re "\\|\\." "\\)" + "+\\)") + nil t) + (progn + (setq mlist (list (match-string 2))) + (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\\)[ \t]+" + "\\([A-Z]" ruby-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)))) + ;; generate string + (if (consp mlist) + (mapconcat (function identity) mlist "::") + nil))))) + +(cond + ((featurep 'font-lock) + (or (boundp 'font-lock-variable-name-face) + (setq font-lock-variable-name-face font-lock-type-face)) + + (setq ruby-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)))) + + (cond ((featurep 'xemacs) + (put 'ruby-mode 'font-lock-defaults + '((ruby-font-lock-keywords) + nil nil nil + beginning-of-line + (font-lock-syntactic-keywords + . ruby-font-lock-syntactic-keywords)))) + (t + (add-hook 'ruby-mode-hook + '(lambda () + (make-local-variable 'font-lock-defaults) + (make-local-variable 'font-lock-keywords) + (make-local-variable 'font-lock-syntax-table) + (make-local-variable 'font-lock-syntactic-keywords) + (setq font-lock-defaults '((ruby-font-lock-keywords) nil nil)) + (setq font-lock-keywords ruby-font-lock-keywords) + (setq font-lock-syntax-table ruby-font-lock-syntax-table) + (setq font-lock-syntactic-keywords ruby-font-lock-syntactic-keywords))))) + + (defun ruby-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 ruby-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 ruby-font-lock-syntax-table + (let* ((tbl (copy-syntax-table ruby-mode-syntax-table))) + (modify-syntax-entry ?_ "w" tbl) + tbl)) + + (defun ruby-font-lock-here-docs (limit) + (if (re-search-forward ruby-here-doc-beg-re limit t) + (let (beg) + (beginning-of-line) + (forward-line) + (setq beg (point)) + (if (re-search-forward (ruby-here-doc-end-match) nil t) + (progn + (set-match-data (list beg (point))) + t))))) + + (defun ruby-font-lock-maybe-here-docs (limit) + (let (beg) + (save-excursion + (if (re-search-backward ruby-here-doc-beg-re nil t) + (progn + (beginning-of-line) + (forward-line) + (setq beg (point))))) + (if (and beg + (let ((end-match (ruby-here-doc-end-match))) + (and (not (re-search-backward end-match beg t)) + (re-search-forward end-match nil t)))) + (progn + (set-match-data (list beg (point))) + t) + nil))) + + (defvar ruby-font-lock-keywords + (list + ;; functions + '("^\\s *def\\s +\\([^( \t\n]+\\)" + 1 font-lock-function-name-face) + ;; keywords + (cons (concat + "\\(^\\|[^_:.@$]\\|\\.\\.\\)\\b\\(defined\\?\\|\\(" + (mapconcat + 'identity + '("alias" + "and" + "begin" + "break" + "case" + "catch" + "class" + "def" + "do" + "elsif" + "else" + "fail" + "ensure" + "for" + "end" + "if" + "in" + "module" + "next" + "not" + "or" + "raise" + "redo" + "rescue" + "retry" + "return" + "then" + "throw" + "super" + "unless" + "undef" + "until" + "when" + "while" + "yield" + ) + "\\|") + "\\)\\>\\)") + 2) + ;; variables + '("\\(^\\|[^_:.@$]\\|\\.\\.\\)\\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 + '(ruby-font-lock-docs + 0 font-lock-comment-face t) + '(ruby-font-lock-maybe-docs + 0 font-lock-comment-face t) + ;; "here" document + '(ruby-font-lock-here-docs + 0 font-lock-string-face t) + '(ruby-font-lock-maybe-here-docs + 0 font-lock-string-face t) + `(,ruby-here-doc-beg-re + 0 font-lock-string-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) + ;; 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 ruby mode.")) + + ((featurep 'hilit19) + (hilit-set-mode-patterns + 'ruby-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\\).*$" nil decl) + ("^\\s *\\<\\(class\\|def\\|module\\)\\>" "[)\n;]" defun) + ("[^_]\\<\\(begin\\|case\\|else\\|elsif\\|end\\|ensure\\|for\\|if\\|unless\\|rescue\\|then\\|when\\|while\\|until\\|do\\|yield\\)\\>\\([^_]\\|$\\)" 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)))) + ) + + +(provide 'ruby-mode) |