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elscreen-gf.el
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;; -*- Mode: Emacs-Lisp -*-
;;
;; elscreen-gf.el
;;
(defconst elscreen-gf-version "1.5.3 (November 07, 2007)")
;;
;; Author: Naoto Morishima <[email protected]>
;; Based on: grep-family.el
;; by Youki Kadobayashi <[email protected]>
;; Created: June 23, 1996
;; Revised: November 07, 2007
;; 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 2, 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; see the file COPYING. If not, write to
;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
(provide 'elscreen-gf)
(require 'elscreen)
(require 'ring)
;;; User Customizable Variables:
(defgroup elscreen-gf nil
"ElScreen-GF -- Grep Family on ElScreen"
:tag "ElScreen-GF"
:group 'tools)
(defcustom elscreen-gf-grep-program-name "grep"
"Program invoked by \\[elscreen-gf-grep] command."
:type 'string
:group 'elscreen-gf)
(defcustom elscreen-gf-idutils-gid-program-name "gid"
"Program invoked by \\[elscreen-gf-idutils-gid] command."
:type 'string
:group 'elscreen-gf)
(defcustom elscreen-gf-idutils-mkid-program-name "mkid"
"Program invoked by \\[elscreen-gf-idutils-mkid] command."
:type 'string
:group 'elscreen-gf)
(defcustom elscreen-gf-cscope-program-name "cscope"
"Program invoked by \\[elscreen-gf-cscope] command."
:type 'string
:group 'elscreen-gf)
(defcustom elscreen-gf-global-program-name "global"
"Program invoked by \\[elscreen-gf-global] command."
:type 'string
:group 'elscreen-gf)
(defcustom elscreen-gf-global-gtags-program-name "gtags"
"Program invoked by \\[elscreen-gf-global-gtags] command."
:type 'string
:group 'elscreen-gf)
(defcustom elscreen-gf-mode-truncate-lines t
"If non-nil, truncate each line in ElScreen-GF mode."
:tag "Truncate lines in ElScreen-GF mode."
:type 'boolean
:group 'elscreen-gf)
(defvar elscreen-gf-invoke-point-history)
(defcustom elscreen-gf-invoke-point-history-length 8
"Length of histories for the locations where gf searchs were invoked."
:tag "Length of histries for invoke-point."
:type '(integer :size 4)
:set (lambda (symbol value)
(when (and (numberp value)
(>= value 4)
(<= value 64))
(custom-set-default symbol value)
(let ((old-history (when (boundp 'elscreen-gf-invoke-point-history)
elscreen-gf-invoke-point-history)))
(setq elscreen-gf-invoke-point-history (make-ring value))
(when (and old-history (ring-p old-history))
(while (and (not (ring-empty-p old-history))
(< (ring-length elscreen-gf-invoke-point-history)
value))
(ring-insert-at-beginning elscreen-gf-invoke-point-history
(ring-remove old-history 0)))))))
:group 'elscreen-gf)
(defface elscreen-gf-mode-selected-entry-face
'((t (:underline t)))
"Face used for the selected entry in ElScreen-GF mode."
:group 'elscreen-gf)
(defface elscreen-gf-mode-file-name-face
'((((class color) (background dark))
(:foreground "khaki" :bold t))
(((class color) (background light))
(:foreground "DarkSlateBlue" :bold t))
(t (:bold t)))
"Face used for file name in ElScreen-GF mode."
:group 'elscreen-gf)
(defface elscreen-gf-mode-line-number-face
'((((class color) (background dark))
(:foreground "gray" :bold t))
(((class color) (background light))
(:foreground "gray50" :bold t))
(t (:bold t)))
"Face used for line number in ElScreen-GF mode."
:group 'elscreen-gf)
(defface elscreen-gf-mode-pattern-face
'((((class color) (background dark))
(:foreground "tomato" :bold t))
(((class color) (background light))
(:foreground "tomato" :bold t))
(t (:bold t)))
"Face used to emphasize the specified keyword in ElScreen-GF mode."
:group 'elscreen-gf)
(defface elscreen-gf-emphasis-after-jump-face
'((((class color) (background light))
(:background "LightSteelBlue1"))
(((class color) (background dark))
(:background "SteelBlue"))
(t (:bold t)))
"Face used to emphasize the selected line after jump."
:group 'elscreen-gf)
;;; Key bindings:
(defvar elscreen-gf-map (make-sparse-keymap)
"Keymap for elscreen-gf.")
(define-key elscreen-gf-map "G" 'elscreen-gf-grep)
(define-key elscreen-gf-map "m" 'elscreen-gf-idutils-mkid)
(define-key elscreen-gf-map "g" 'elscreen-gf-idutils-gid)
(define-key elscreen-gf-map "c" 'elscreen-gf-cscope)
(define-key elscreen-gf-map "t" 'elscreen-gf-global-gtags)
(define-key elscreen-gf-map "l" 'elscreen-gf-global)
(define-key elscreen-gf-map "u" 'elscreen-gf-go-back-to-latest-invoke-point)
(define-key elscreen-gf-map "v" 'elscreen-gf-display-version)
(define-key elscreen-map "\C-g" elscreen-gf-map)
(defvar elscreen-gf-mode-map (make-sparse-keymap)
"keymap used in elscreen-gf mode.")
(define-key elscreen-gf-mode-map "n" 'elscreen-gf-mode-next-line)
(define-key elscreen-gf-mode-map "p" 'elscreen-gf-mode-previous-line)
(define-key elscreen-gf-mode-map " " 'elscreen-gf-mode-scroll-up)
(define-key elscreen-gf-mode-map "\177" 'elscreen-gf-mode-scroll-down)
(define-key elscreen-gf-mode-map "<" 'elscreen-gf-mode-beginning-of-buffer)
(define-key elscreen-gf-mode-map ">" 'elscreen-gf-mode-end-of-buffer)
(define-key elscreen-gf-mode-map "N" 'elscreen-gf-mode-next-file)
(define-key elscreen-gf-mode-map "P" 'elscreen-gf-mode-previous-file)
(define-key elscreen-gf-mode-map "t" 'elscreen-gf-mode-truncate-lines-toggle)
(define-key elscreen-gf-mode-map "o" 'elscreen-gf-mode-jump-to-entry)
(define-key elscreen-gf-mode-map "O" 'elscreen-gf-mode-jump-to-entry-read-only)
(define-key elscreen-gf-mode-map "\C-g" 'elscreen-gf-mode-search-quit)
(define-key elscreen-gf-mode-map "q" 'elscreen-gf-mode-exit)
(define-key elscreen-gf-mode-map "v" 'elscreen-gf-display-version)
;;; Internal Functions and Variables:
(defvar elscreen-gf-invoke-point-history
(make-ring elscreen-gf-invoke-point-history-length))
(defsubst elscreen-gf-overlay-create (start end face)
(let ((overlay (make-overlay start end)))
(overlay-put overlay 'face face)
(overlay-put overlay 'evaporate t)
overlay))
(defsubst elscreen-gf-move-overlay-create (overlay-symbol start end face)
(let ((overlay (condition-case nil
(symbol-value overlay-symbol)
(error nil))))
(if (overlayp overlay)
(move-overlay overlay start end (current-buffer))
(set overlay-symbol (elscreen-gf-overlay-create start end face))
(setq overlay (symbol-value overlay-symbol)))
overlay))
(defun elscreen-gf-define-major-mode-token (major-mode token-chars)
(let ((thing-symbol (intern (format "%s-thing" (symbol-name major-mode)))))
(put major-mode 'elscreen-gf-major-mode-thing thing-symbol)
(put thing-symbol 'token-chars token-chars)
(put thing-symbol 'end-op
`(lambda ()
(re-search-forward (concat "\\=[" ,token-chars "]*") nil t)))
(put thing-symbol 'beginning-op
`(lambda ()
(if (re-search-backward (concat "[^" ,token-chars "]") nil t)
(forward-char)
(goto-char (point-min)))))))
(elscreen-gf-define-major-mode-token 'c-mode "a-zA-Z0-9_")
(elscreen-gf-define-major-mode-token 'perl-mode "a-zA-Z0-9_")
(elscreen-gf-define-major-mode-token 'emacs-lisp-mode "-a-zA-Z0-9/+:<>")
(defsubst elscreen-gf-major-mode-token-chars (major-mode)
(get (get major-mode 'elscreen-gf-major-mode-thing) 'token-chars))
(defsubst elscreen-gf-db-directory (file-name &optional directory)
(let ((directory (expand-file-name
(or directory
(and (buffer-file-name)
(file-name-directory (buffer-file-name)))
default-directory)))
(previous-directory nil))
(catch 'found
(while (and directory
(not (and previous-directory
(string= directory previous-directory))))
(if (file-exists-p (concat directory file-name))
(throw 'found directory))
(setq previous-directory directory)
(setq directory (file-name-directory
(directory-file-name directory)))))))
;;; ElScreen-GF mode
(defconst elscreen-gf-mode-to-nickname-alist
'(("^elscreen-gf-mode$" . (lambda ()
(format "ElScreen-GF%s"
(if (and (elscreen-gf-process-exclusive-p
elscreen-gf-idutils-mkid-process
'noerror)
(elscreen-gf-process-exclusive-p
elscreen-gf-global-gtags-process
'noerror))
"" " (!)")))))
"*Alist composed of the pair of mode-name and corresponding screen-name.")
(elscreen-set-mode-to-nickname-alist 'elscreen-gf-mode-to-nickname-alist)
(defun elscreen-gf-goto-screen-create (target-directory)
(let ((buffer (get-buffer-create "ElScreen-GF")))
(elscreen-find-and-goto-by-buffer buffer 'create)
(switch-to-buffer buffer)
(elscreen-gf-mode target-directory)
(let ((buffer-read-only nil))
(erase-buffer))))
(defvar elscreen-gf-pattern)
(defvar elscreen-gf-invoke-point)
(defvar elscreen-gf-filter-odd-string)
(defvar elscreen-gf-selected-entry-overlay)
(defun elscreen-gf-mode (target-directory)
"Major mode for jumping to the entries.
Key bindings:
\\{elscreen-gf-mode-map}"
(setq major-mode 'elscreen-gf-mode)
(setq mode-name "ElScreen-GF")
(use-local-map elscreen-gf-mode-map)
(setq buffer-read-only t)
(setq case-fold-search nil)
(setq truncate-lines elscreen-gf-mode-truncate-lines)
(set (make-local-variable 'elscreen-gf-pattern) nil)
(set (make-local-variable 'elscreen-gf-invoke-point) nil)
(set (make-local-variable 'elscreen-gf-filter-odd-string) nil)
(set (make-local-variable 'elscreen-gf-selected-entry-overlay) nil)
(setq default-directory target-directory)
(auto-fill-mode nil))
(defun elscreen-gf-mode-selected-entry-overlay ()
(elscreen-gf-move-overlay-create
'elscreen-gf-selected-entry-overlay
(point-at-bol) (point-at-eol)
'elscreen-gf-mode-selected-entry-face))
(defun elscreen-gf-mode-next-line ()
"Move the current entry vertically down."
(interactive)
(let ((current-line (line-number-at-pos)))
(cond
((< current-line 4)
(goto-char (point-min))
(forward-line 3))
((< current-line (line-number-at-pos (point-max)))
(forward-line 1)))
(elscreen-gf-mode-selected-entry-overlay)))
(defun elscreen-gf-mode-previous-line ()
"Move the current entry vertically up."
(interactive)
(let ((current-line (line-number-at-pos)))
(cond
((< 4 current-line)
(forward-line -1))
(t
(goto-char (point-min))
(forward-line 3)))
(elscreen-gf-mode-selected-entry-overlay)))
(defun elscreen-gf-mode-scroll-up ()
"Scroll entries upward full screen."
(interactive)
(scroll-up)
(elscreen-gf-mode-selected-entry-overlay))
(defun elscreen-gf-mode-scroll-down ()
"Scroll entries downward full screen."
(interactive)
(scroll-down)
(elscreen-gf-mode-selected-entry-overlay))
(defun elscreen-gf-mode-beginning-of-buffer ()
"Move the current entry to the beginning of the entries."
(interactive)
(goto-char (point-min))
(forward-line 3)
(elscreen-gf-mode-selected-entry-overlay))
(defun elscreen-gf-mode-end-of-buffer ()
"Move the current entry to the end of the entries."
(interactive)
(goto-char (point-max))
(forward-line -1)
(elscreen-gf-mode-selected-entry-overlay))
(defun elscreen-gf-mode-next-file ()
(interactive)
(cond
((save-excursion
(beginning-of-line)
(looking-at "^\\([^:\n]+\\):\\([0-9]+\\):"))
(let ((file-name (match-string 1)))
(goto-char (point-max))
(re-search-backward (concat "^" file-name ":"))
(forward-line)))
(t
(re-search-forward "^\\([^:\n]+\\):\\([0-9]+\\):" nil t)
(beginning-of-line)))
(elscreen-gf-mode-selected-entry-overlay))
(defun elscreen-gf-mode-previous-file ()
(interactive)
(cond
((save-excursion
(beginning-of-line)
(looking-at "^\\([^:\n]+\\):\\([0-9]+\\):"))
(let ((file-name (match-string 1)))
(goto-char (point-min))
(re-search-forward (concat "^" file-name ":"))
(forward-line -1)
(beginning-of-line)))
(t
(re-search-backward "^\\([^:\n]+\\):\\([0-9]+\\):" nil t)))
(when (looking-at "^\\([^:\n]+\\):\\([0-9]+\\):")
(let ((file-name (match-string 1)))
(goto-char (point-min))
(re-search-forward (concat "^" file-name ":"))
(beginning-of-line)))
(elscreen-gf-mode-selected-entry-overlay))
(defun elscreen-gf-mode-truncate-lines-toggle ()
"Toggle truncated lines."
(interactive)
(let ((window-start (window-start))
(line-number-in-window 0))
(beginning-of-line)
(save-excursion
(while (> (point) window-start)
(setq line-number-in-window (1+ line-number-in-window))
(vertical-motion -1)))
(setq truncate-lines (not truncate-lines))
(recenter line-number-in-window)))
(defvar elscreen-gf-emphasis-after-jump-overlay nil)
(defun elscreen-gf-mode-jump-to-entry ()
"Jump to the current entry."
(interactive)
(when (save-excursion
(beginning-of-line)
(looking-at "^\\([^:\n]+\\):\\([0-9]+\\):"))
(when (not (eq (marker-buffer (cdr elscreen-gf-invoke-point))
(current-buffer)))
(ring-insert elscreen-gf-invoke-point-history elscreen-gf-invoke-point))
(let ((file-name (match-string 1))
(line (string-to-number (match-string 2)))
(pattern elscreen-gf-pattern)
token-chars nontoken-chars)
(isearch-update-ring pattern)
(elscreen-find-file file-name)
(setq token-chars
(or (elscreen-gf-major-mode-token-chars major-mode)
(elscreen-gf-major-mode-token-chars 'elscreen-gf-mode)
"a-zA-Z0-9"))
(setq nontoken-chars (format "[^%s]" token-chars))
(goto-char (point-min))
(forward-line (1- line))
(let ((case-fold-search nil))
(goto-char (or (and (re-search-forward
(format "\\(^\\|%s\\)\\(%s\\)\\(%s\\|$\\)"
nontoken-chars pattern nontoken-chars)
(point-at-eol) t)
(match-beginning 2))
(and (search-forward pattern (point-at-eol) t)
(match-beginning 0))
(point-at-bol))))
(elscreen-gf-move-overlay-create 'elscreen-gf-emphasis-after-jump-overlay
(point-at-bol) (point-at-eol)
'elscreen-gf-emphasis-after-jump-face))))
(defun elscreen-gf-mode-jump-to-entry-read-only ()
(interactive)
(elscreen-gf-mode-jump-to-entry)
(read-only-mode 'toggle))
(defvar elscreen-gf-search-process nil)
(defun elscreen-gf-mode-search-quit (&optional force)
(interactive)
(when (and (not (elscreen-gf-process-exclusive-p
elscreen-gf-search-process 'noerror))
(or force
(yes-or-no-p
(format "Really quit %s? "
(process-name elscreen-gf-search-process)))))
(delete-process elscreen-gf-search-process)))
(defun elscreen-gf-mode-exit ()
(interactive)
(let* ((current-screen (elscreen-get-current-screen))
(buffer (get-buffer "ElScreen-GF"))
(screen (when (buffer-live-p buffer)
(elscreen-find-screen-by-buffer buffer))))
(when screen
(elscreen-goto-internal screen)
(mapc
(lambda (window)
(if (one-window-p)
(elscreen-kill screen)
(delete-window window)))
(get-buffer-window-list buffer)))
(when buffer
(kill-buffer buffer))
(when (elscreen-screen-live-p screen)
(elscreen-set-window-configuration
screen (elscreen-current-window-configuration)))
(when (elscreen-screen-live-p current-screen)
(elscreen-goto-internal current-screen))))
;;; Fundamental functions shared among GNU grep/GNI ID Utils/cscope/GNU global
(defun elscreen-gf-process-exclusive-p (process &optional noerror)
(let ((exclusive-p (not (and (processp process)
(eq (process-status process) 'run)))))
(when (not (or exclusive-p noerror))
(message "Sorry, %s is running now. Try again later."
(process-name process)))
exclusive-p))
(defsubst elscreen-gf-search-token-at-point ()
(let* ((thing (or (get major-mode 'elscreen-gf-major-mode-thing) 'word))
(thing-at-point (or (thing-at-point thing) "")))
(set-text-properties 0 (length thing-at-point) nil thing-at-point)
thing-at-point))
(defvar elscreen-gf-search-pattern-history nil)
(defsubst elscreen-gf-search-read-pattern (prompt &optional pattern-default)
(let* ((pattern-default (or pattern-default
(elscreen-gf-search-token-at-point)
"")))
(read-string prompt (cons pattern-default 0)
'elscreen-gf-search-pattern-history)))
(defun elscreen-gf-search-regexp-dot-to-token (regexp token)
(let ((index 0)
(token-length (length token)))
(save-match-data
(while (setq index (string-match "\\." regexp index))
(if (and (/= index 0)
(string= (substring regexp (1- index) index) "\\"))
(setq index (1+ index))
(setq regexp (concat (substring regexp 0 index)
token
(substring regexp (1+ index))))
(setq index (+ index token-length))))))
regexp)
(defun elscreen-gf-read-selection (title prompt option-defs)
(let ((candidate-buffer (generate-new-buffer " *ElScreen-GF-Read-Selection*"))
candidate-window-height
(minibuffer-map (copy-keymap minibuffer-local-map))
window frame-last-window mini-hist)
;; prepare candidate buffer
(with-current-buffer candidate-buffer
(setq buffer-read-only t)
(let ((buffer-read-only nil))
(erase-buffer)
(insert title "\n"
(mapconcat
(lambda (option-def)
(apply 'format " %s) %s\n" option-def))
option-defs nil))
(goto-char (point-min))
(save-excursion
(while (not (eobp))
(when (looking-at "^ \\([0-9a-z]\\)) .*$")
(put-text-property
(match-beginning 1) (match-end 1) 'face 'bold))
(forward-line 1)))
(setq candidate-window-height (line-number-at-pos (point-max)))
(set-buffer-modified-p nil)))
;; prepare candidate window
(save-window-excursion
(setq frame-last-window
(previous-window (frame-first-window)))
(while (minibuffer-window-active-p frame-last-window)
(setq frame-last-window (previous-window frame-last-window)))
(while (and (not (one-window-p))
(or (< (window-width frame-last-window)
(frame-width))
(< (window-height frame-last-window)
(+ candidate-window-height window-min-height))))
(setq window frame-last-window)
(setq frame-last-window (previous-window window))
(delete-window window))
(select-window (split-window frame-last-window))
(shrink-window (- (window-height) candidate-window-height))
(switch-to-buffer candidate-buffer)
;; make keymap for minibuffer
(suppress-keymap minibuffer-map t)
(define-key minibuffer-map "\C-m" 'undefined)
(define-key minibuffer-map "\C-g" 'abort-recursive-edit)
(mapc
(lambda (option-def)
(define-key minibuffer-map (car option-def) 'self-insert-and-exit))
option-defs)
;; read key from minibuffer
(unwind-protect
(assoc
(read-from-minibuffer prompt nil minibuffer-map nil 'mini-hist)
option-defs)
(kill-buffer candidate-buffer)))))
(defsubst elscreen-gf-run-search-command (command-name pattern command directory line-parser)
(put 'elscreen-gf-mode 'elscreen-gf-major-mode-thing
(or (get major-mode 'elscreen-gf-major-mode-thing) 'word))
(let ((invoke-point (cons (elscreen-get-current-screen) (point-marker))))
(elscreen-gf-goto-screen-create directory)
(setq elscreen-gf-pattern pattern)
(setq elscreen-gf-invoke-point invoke-point))
(let ((buffer-read-only nil))
(insert "DIR: " (abbreviate-file-name directory) "\n"
"CMD: " command " (reformatted by gf)\n\n"))
(message "Running %s..." command-name)
(setq elscreen-gf-search-process
(start-process command-name (current-buffer)
"sh" "-c" command "2> /dev/null"))
(process-put elscreen-gf-search-process
'elscreen-gf-search-line-parser line-parser)
(set-process-filter elscreen-gf-search-process 'elscreen-gf-search-filter)
(set-process-sentinel elscreen-gf-search-process 'elscreen-gf-search-sentinel))
(defun elscreen-gf-search-filter (process string)
(set-buffer (process-buffer process))
(save-excursion
(let* ((string (concat elscreen-gf-filter-odd-string string))
(token-chars (or (elscreen-gf-major-mode-token-chars major-mode)
"a-zA-Z0-9"))
(nontoken-chars (format "[^%s]" token-chars))
(line-parser (process-get process 'elscreen-gf-search-line-parser))
(buffer-read-only nil))
(goto-char (point-max))
(save-excursion (insert string))
(while (and (not (eobp)) (looking-at ".*\n"))
(beginning-of-line)
(let* ((line (buffer-substring (point-at-bol) (point-at-eol)))
(line-elms (funcall line-parser line))
(file-name (nth 0 line-elms))
(line-number (nth 1 line-elms))
(source (nth 2 line-elms))
start end)
(when line-elms
(delete-region (point-at-bol) (point-at-eol))
(elscreen-gf-overlay-create
(point) (progn (insert (file-relative-name file-name)) (point))
'elscreen-gf-mode-file-name-face)
(insert ":")
(elscreen-gf-overlay-create
(point) (progn (insert line-number) (point))
'elscreen-gf-mode-line-number-face)
(insert ":")
(save-excursion (insert (nth 0 source)))
(forward-char (nth 1 source))
(setq start (point) end (+ start (nth 2 source)))
(while (or (and (eq (point) start)
(save-excursion
(re-search-forward
(format "\\(%s\\)\\(%s\\|$\\)"
elscreen-gf-pattern nontoken-chars)
end t))
(eq (match-beginning 1) start))
(re-search-forward
(format "%s\\(%s\\)\\(%s\\|$\\)"
nontoken-chars elscreen-gf-pattern
nontoken-chars)
end t))
(elscreen-gf-overlay-create (match-beginning 1) (match-end 1)
'elscreen-gf-mode-pattern-face)
(goto-char (match-end 1)))))
(forward-line))
(setq elscreen-gf-filter-odd-string
(buffer-substring (point-at-bol) (point-at-eol)))
(delete-region (point-at-bol) (point-at-eol)))))
(defun elscreen-gf-search-sentinel (process event)
(let ((status (string-match "finished" event)))
(message "Running %s... done" (process-name elscreen-gf-search-process))
(setq elscreen-gf-search-process nil)
(set-buffer (process-buffer process))
(elscreen-gf-mode-selected-entry-overlay)))
;;; GNU grep
(defun elscreen-gf-grep (&optional pattern file-name-re)
"Run grep, with user-specified args, and collect output
in the ElScreen-GF buffer."
(interactive)
(cond
((not (executable-find elscreen-gf-grep-program-name))
(error "grep not found."))
((elscreen-gf-process-exclusive-p elscreen-gf-search-process)
(let* ((pattern (or pattern
(elscreen-gf-search-read-pattern "Run grep (pattern): ")))
(buffer-file-name (or (buffer-file-name) ""))
(file-name-re-default (concat
(file-name-directory buffer-file-name)
"*"
(when (file-name-extension buffer-file-name)
".")
(file-name-extension buffer-file-name)))
(file-name-re (or file-name-re
(read-string
"Run grep (files): "
(cons file-name-re-default 0) nil "*")))
(token-chars (or (elscreen-gf-major-mode-token-chars major-mode)
"a-zA-Z0-9"))
(token-chars-re (format "[%s]" token-chars))
(nontoken-chars-re (format "[^%s]" token-chars))
(pattern-tokenize (elscreen-gf-search-regexp-dot-to-token
pattern token-chars-re))
(command (format "%s -IHn %s %s"
elscreen-gf-grep-program-name
(format "'\\(^\\|%s\\)\\(%s\\)\\(%s\\|$\\)'"
nontoken-chars-re
pattern-tokenize
nontoken-chars-re)
file-name-re)))
(elscreen-gf-run-search-command
"grep" pattern-tokenize command default-directory
'elscreen-gf-grep-line-parser)))))
(defun elscreen-gf-grep-line-parser (line)
(when (string-match "^\\([^:\n]+\\):\\([0-9]+\\):\\(.*\\)$" line)
(let ((file-name (match-string 1 line))
(line-number (match-string 2 line))
(source (match-string 3 line)))
(list file-name line-number (list source 0 (length source))))))
;;; GNU ID Utils
(defsubst elscreen-gf-idutils-id-directory (&optional directory)
(elscreen-gf-db-directory "ID" directory))
(defvar elscreen-gf-idutils-mkid-process nil)
(defun elscreen-gf-idutils-mkid (&optional directory)
"Run mkid, with user-specified args."
(interactive)
(cond
((not (executable-find elscreen-gf-idutils-mkid-program-name))
(error "mkid not found."))
((elscreen-gf-process-exclusive-p elscreen-gf-idutils-mkid-process)
(let ((default-directory
(or (and directory (file-directory-p directory) directory)
(read-directory-name "Run mkid (target): "
(or (elscreen-gf-idutils-id-directory)
default-directory) nil t)))
(command (format "%s" elscreen-gf-idutils-mkid-program-name)))
(message "Running mkid...")
(setq elscreen-gf-idutils-mkid-process
(start-process "mkid" nil "sh" "-c" command))
(set-process-sentinel elscreen-gf-idutils-mkid-process
'elscreen-gf-idutils-mkid-sentinel)
(elscreen-notify-screen-modification 'force-immediately)))))
(defun elscreen-gf-idutils-mkid-sentinel (process event)
(let ((status (string-match "finished" event)))
(message "Running mkid... %s" (if status "done" "error"))
(setq elscreen-gf-idutils-mkid-process nil)
(elscreen-notify-screen-modification 'force-immediately)))
(defun elscreen-gf-idutils-mkid-after-save ()
(when (and (buffer-file-name)
(elscreen-gf-process-exclusive-p
elscreen-gf-idutils-mkid-process 'noerror))
(let ((id-directory (elscreen-gf-idutils-id-directory)))
(when id-directory
(elscreen-gf-idutils-mkid id-directory)))))
(defun elscreen-gf-idutils-mkid-setup-after-save-hook ()
(make-local-variable 'after-save-hook)
(add-hook 'after-save-hook 'elscreen-gf-idutils-mkid-after-save))
(defun elscreen-gf-idutils-gid (&optional pattern)
"Run gid, with user-specified args, and collect output
in the ElScreen-GF buffer."
(interactive)
(cond
((not (executable-find elscreen-gf-idutils-gid-program-name))
(when (yes-or-no-p "gid not found; execute grep instead? ")
(elscreen-gf-grep)))
((not (elscreen-gf-idutils-id-directory))
(funcall
(nth 2 (elscreen-gf-read-selection
"Cannot locate `ID'; what instead?"
"Select action: "
'(("m" "Execute mkid to generate `ID'" elscreen-gf-idutils-mkid)
("g" "Execute grep" elscreen-gf-grep))))))
((elscreen-gf-process-exclusive-p elscreen-gf-search-process)
(let* ((pattern (or pattern
(elscreen-gf-search-read-pattern "Run gid (pattern): ")))
(token-chars (or (elscreen-gf-major-mode-token-chars major-mode)
"a-zA-Z0-9"))
(token-chars-re (format "[%s]" token-chars))
(pattern-tokenize (elscreen-gf-search-regexp-dot-to-token
pattern token-chars-re))
(directory (elscreen-gf-idutils-id-directory))
(command (format "%s --regexp '^(%s)$'"
elscreen-gf-idutils-gid-program-name pattern)))
;; XXX: gid does not raise error even if given regexp starts with '*',
;; so we should check it here.
(when (string-match "^\\*" pattern)
(error "Invalid regexp: %s" pattern))
(elscreen-gf-run-search-command
"gid" pattern-tokenize command directory
'elscreen-gf-grep-line-parser)))))
;;; cscope
(defsubst elscreen-gf-cscope-cross-ref-directory (&optional directory)
(elscreen-gf-db-directory "cscope.out" directory))
(defun elscreen-gf-cscope (&optional pattern directory)
"Run cscope, with user-specified args, and collect output
in the ElScreen-GF buffer."
(interactive)
(cond
((not (executable-find elscreen-gf-cscope-program-name))
(when (yes-or-no-p "cscope not found; execute grep instead? ")
(elscreen-gf-grep)))
((elscreen-gf-process-exclusive-p elscreen-gf-search-process)
(let* ((pattern (or pattern
(elscreen-gf-search-read-pattern
"Run cscope (pattern): ")))
(directory (or (and directory (file-directory-p directory) directory)
(elscreen-gf-cscope-cross-ref-directory)
(read-directory-name "Run cscope (target): "
default-directory nil t)))
(token-chars (or (elscreen-gf-major-mode-token-chars major-mode)
"a-zA-Z0-9"))
(token-chars-re (format "[%s]" token-chars))
(pattern-tokenize (elscreen-gf-search-regexp-dot-to-token
pattern token-chars-re))
(query-type-def (elscreen-gf-read-selection
"Available query type for cscope: "
"Select query type: "
'(("0" "Find this C symbol" 0)
("1" "Find this function definition" 1)
("2" "Find functions calling this function" 3))))
(query-type (nth 2 query-type-def))
(command (format "%s -LR -%d '%s' | sort -k 1,1 -k 3,3n"
elscreen-gf-cscope-program-name query-type pattern))
(line-parser (intern
(format "elscreen-gf-cscope-line-parser-query-type-%s"
(car query-type-def)))))
(elscreen-gf-run-search-command
"cscope" pattern-tokenize command directory line-parser)))))
(defsubst elscreen-gf-cscope-line-parser-string-match (line)
(string-match "^\\([^ ]+\\) \\([^ ]+\\) \\([0-9]+\\) \\(.*\\)$" line))
(defun elscreen-gf-cscope-line-parser-common (line)
(when (elscreen-gf-cscope-line-parser-string-match line)
(let ((file-name (match-string 1 line))
(line-number (match-string 3 line))
(function-name (match-string 2 line))
(source (match-string 4 line)))
(list file-name line-number
(list (format "[%s] %s" function-name source)
(+ (length function-name) 3) (length source))))))
(defalias 'elscreen-gf-cscope-line-parser-query-type-0
'elscreen-gf-cscope-line-parser-common)
(defun elscreen-gf-cscope-line-parser-query-type-1 (line)
(when (elscreen-gf-cscope-line-parser-string-match line)
(let ((file-name (match-string 1 line))
(line-number (match-string 3 line))
(source (match-string 4 line)))
(list file-name line-number (list source 0 (length source))))))
(defalias 'elscreen-gf-cscope-line-parser-query-type-2
'elscreen-gf-cscope-line-parser-common)
;;; GNU global
(defsubst elscreen-gf-global-tags-directory (&optional directory)
(elscreen-gf-db-directory "GTAGS" directory))
(defvar elscreen-gf-global-gtags-process nil)
(defun elscreen-gf-global-gtags (&optional directory)
"Run gtags, with user-specified args."
(interactive)
(cond
((not (executable-find elscreen-gf-global-gtags-program-name))
(error "gtags not found."))
((elscreen-gf-process-exclusive-p elscreen-gf-global-gtags-process)
(let ((default-directory
(or (and directory (file-directory-p directory) directory)
(read-directory-name "Run gtags (target): "
(or (elscreen-gf-global-tags-directory)
default-directory) nil t)))
(command (format "%s" elscreen-gf-global-gtags-program-name)))
(message "Running gtags...")
(setq elscreen-gf-global-gtags-process
(start-process "gtags" nil "sh" "-c" command))
(set-process-sentinel elscreen-gf-global-gtags-process
'elscreen-gf-global-gtags-sentinel)
(elscreen-notify-screen-modification 'force-immediately)))))
(defun elscreen-gf-global-gtags-sentinel (process event)
(let ((status (string-match "finished" event)))
(message "Running gtags... %s" (if status "done" "error"))
(setq elscreen-gf-global-gtags-process nil)
(elscreen-notify-screen-modification 'force-immediately)))
(defun elscreen-gf-global-gtags-after-save ()
(when (and (buffer-file-name)
(elscreen-gf-process-exclusive-p
elscreen-gf-global-gtags-process 'noerror))
(let ((tags-directory (elscreen-gf-global-tags-directory)))
(when tags-directory
(elscreen-gf-global-gtags tags-directory)))))
(defun elscreen-gf-global-gtags-setup-after-save-hook ()
(make-local-variable 'after-save-hook)
(add-hook 'after-save-hook 'elscreen-gf-global-gtags-after-save))
(defvar elscreen-gf-global-5.0-or-later-p)
(defsubst elscreen-gf-global-5.0-or-later-p ()
(unless (boundp 'elscreen-gf-global-5.0-or-later-p)
(let (global-version)
(with-temp-buffer
(call-process elscreen-gf-global-program-name nil t nil "--version")
(setq global-version (string-to-number
(buffer-substring (point-min) (point-max)))))
(setq elscreen-gf-global-5.0-or-later-p (and global-version
(<= 5.0 global-version)))))
elscreen-gf-global-5.0-or-later-p)
(defun elscreen-gf-global (&optional pattern directory)
"Run global, with user-specified args, and collect output
in the ElScreen-GF buffer."
(interactive)
(cond
((not (executable-find elscreen-gf-global-program-name))
(when (yes-or-no-p "global not found; execute grep instead? ")
(elscreen-gf-grep)))
((not (elscreen-gf-global-tags-directory))
(funcall
(nth 2 (elscreen-gf-read-selection
"Cannot locate `GTAGS'; what instead?"
"Select action: "
'(("t" "Execute gtags to generate `GTAGS'" elscreen-gf-global-gtags)
("g" "Execute grep" elscreen-gf-grep))))))
((elscreen-gf-process-exclusive-p elscreen-gf-search-process)
(let* ((pattern (or pattern
(elscreen-gf-search-read-pattern
"Run global (pattern): ")))
(directory (or (and directory (file-directory-p directory) directory)
(elscreen-gf-global-tags-directory)
(read-directory-name "Run global (target): "
default-directory nil t)))
(token-chars (or (elscreen-gf-major-mode-token-chars major-mode)
"a-zA-Z0-9"))
(token-chars-re (format "[%s]" token-chars))
(pattern-tokenize (elscreen-gf-search-regexp-dot-to-token
pattern token-chars-re))
(query-type (nth 2 (elscreen-gf-read-selection
"Available query type for GNU GLOBAL: "
"Select query type: "
'(("0" "Find this object definition" "")
("1" "Find this object references" " -r")))))
(command (format
(cond
((elscreen-gf-global-5.0-or-later-p)
"%s%s --result=grep -e '%s' | sort -t : -k 1,1 -k 2,2n")
(t
"%s -x%s -e '%s' | sort -k 3,3 -k 2,2n"))
elscreen-gf-global-program-name query-type pattern))
(line-parser (if (elscreen-gf-global-5.0-or-later-p)
'elscreen-gf-grep-line-parser
'elscreen-gf-global-line-parser)))
(elscreen-gf-run-search-command
"global" pattern-tokenize command directory line-parser)))))
(defun elscreen-gf-global-line-parser (line)
(when (string-match "^[^ ]+ +\\([0-9]+\\) +\\([^ ]+\\) \\(.*\\)$" line)
(let ((file-name (match-string 2 line))
(line-number (match-string 1 line))
(source (match-string 3 line)))
(list file-name line-number (list source 0 (length source))))))
;;; Going back to the latest invoke-point.
(defun elscreen-gf-go-back-to-latest-invoke-point ()
(interactive)
(while (not (or (ring-empty-p elscreen-gf-invoke-point-history)
(let ((invoke-point
(ring-ref elscreen-gf-invoke-point-history 0)))
(buffer-live-p (marker-buffer (cdr invoke-point))))))
(ring-remove elscreen-gf-invoke-point-history 0))
(if (ring-empty-p elscreen-gf-invoke-point-history)
(message "No more invoke-points to go back to.")
(let* ((invoke-point (ring-remove elscreen-gf-invoke-point-history 0))
(invoke-point-screen (car invoke-point))
(invoke-point-marker (cdr invoke-point))
(invoke-point-buffer (marker-buffer invoke-point-marker))
(invoke-point-position (marker-position invoke-point-marker))
(invoke-point-buffer-screen-list
(elscreen-find-screens
`(lambda (screen)
(elscreen-goto-internal screen)
(not (null (get-buffer-window ,invoke-point-buffer))))))
(get-marker-window
(lambda (marker)
(catch 'found
(save-window-excursion
(mapc
(lambda (window)
(select-window window)
(when (eq (point) (marker-position marker))
(throw 'found window)))
(get-buffer-window-list (marker-buffer marker))))
nil))))
(cond
((null invoke-point-buffer-screen-list)
;; No screens showing invoke-point-buffer, so create new screen
;; and show it.
(elscreen-create)
(switch-to-buffer invoke-point-buffer)
(goto-char invoke-point-position))
((memq invoke-point-screen invoke-point-buffer-screen-list)
;; invoke-point-screen shows invoke-point-buffer, so go to the
;; screen and select the window showing the buffer. If there are
;; two or more window showing the buffer, we prefer the window
;; whose buffer's point is invoke-point-position. Anyway,
;; we are moving point to it.
(elscreen-goto invoke-point-screen)
(select-window (or (funcall get-marker-window invoke-point-marker)
(get-buffer-window invoke-point-buffer)))
(goto-char invoke-point-position))
((catch 'found
(mapc
(lambda (screen)
(let (window)
(when (save-window-excursion
(elscreen-goto-internal screen)
(setq window (funcall get-marker-window
invoke-point-marker)))
;; There is (at least one) screen showing buffer whose
;; point is invoke-point-position, so show it.
(elscreen-goto screen)
(select-window window)
(throw 'found t))))
invoke-point-buffer-screen-list)))
(t
;; invoke-point-screen does not show invoke-point-buffer, and
;; the others does not show invoke-point-buffer whose point is
;; invoke-point-position; so we're showing one of screens showing
;; invoke-point-buffer and moving point to invoke-point-position.
(elscreen-goto (car invoke-point-buffer-screen-list))
(select-window (get-buffer-window invoke-point-buffer))
(goto-char invoke-point-position))))))