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|
;;; bashdb.el --- Grand Unified Debugger mode for running bashdb
;; Copyright (C) 2000, 2001 Masatake YAMATO
;; Author: Masatake YAMATO <jet@gyve.org>
;; 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 of the License, or
;; (at your option) any later version.
;; This program is distributed in the hope that it will be useful, but
;; WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with this program; if not, write to the Free Software Foundation,
;; Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
;; Commentary:
;; This program may run on Emacs 21.0.91 and XEmacs 21.1.
;;
;; Put
;; (autoload 'bashdb "bashdb" "Run bashdb" t nil)
;; to your .emacs.
;; M-x bashdb
;; Run bashdb (like this): bashdb target.sh
;;
;; About bashdb:
;; You can get bashdb from
;; http://www.oranda.demon.co.uk/development.html
;;
;; bashdb.el is based on perldb in gud.el in XEmacs 21.1.
;; Revision:
;; $Revision: 1.6 $
;; $Log: bashdb.el,v $
;; Revision 1.6 2001/01/06 12:18:06 masata-y
;; Write note about XEmacs.
;;
;;
;;; Code:
(require 'gud)
;; User customizable variable
(defcustom gud-bashdb-command-name "bashdb"
"File name for executing Bashdb."
:type 'string
:group 'gud)
;; History of argument lists passed to bashdb.
(defvar gud-bashdb-history nil)
(defun gud-bashdb-massage-args (file args)
(if xemacsp
(cons (file-name-nondirectory file) args)
args))
;; There's no guarantee that Emacs will hand the filter the entire
;; marker at once; it could be broken up across several strings. We
;; might even receive a big chunk with several markers in it. If we
;; receive a chunk of text which looks like it might contain the
;; beginning of a marker, we save it here between calls to the
;; filter.
(if xemacsp
(defvar gud-bashdb-marker-acc ""))
(defun gud-bashdb-marker-acc ()
(if xemacsp
gud-bashdb-marker-acc
gud-marker-acc))
(defun gud-bashdb-marker-acc-quote ()
(if xemacsp
'gud-bashdb-marker-acc
'gud-marker-acc))
(defun gud-bashdb-marker-filter (string)
(save-match-data
(set (gud-bashdb-marker-acc-quote)
(concat (gud-bashdb-marker-acc) string))
(let ((output ""))
;; Process all the complete markers in this chunk.
(while (string-match "^\\([^:\n]+\\):\\([0-9]+\\)[ *]*>.*\n"
(gud-bashdb-marker-acc))
(setq
;; Extract the frame position from the marker.
gud-last-frame (cons
(substring (gud-bashdb-marker-acc)
(match-beginning 1)
(match-end 1))
(string-to-int
(substring (gud-bashdb-marker-acc)
(match-beginning 2)
(match-end 2))))
;; Append any text before the marker to the output we're going
;; to return - we don't include the marker in this text.
output (concat output
(substring (gud-bashdb-marker-acc) 0 (match-beginning 0))))
;; Set the accumulator to the remaining text.
(set
(gud-bashdb-marker-acc-quote) (substring
(gud-bashdb-marker-acc) (match-end 0))))
;; Does the remaining text look like it might end with the
;; beginning of another marker? If it does, then keep it in
;; (gud-bashdb-marker-acc) until we receive the rest of it. Since we
;; know the full marker regexp above failed, it's pretty simple to
;; test for marker starts.
(if (string-match "^\\([^:\n]+\\):\\([0-9]+\\)[ *]*>" (gud-bashdb-marker-acc))
(progn
;; Everything before the potential marker start can be output.
(setq output (concat output (substring (gud-bashdb-marker-acc)
0 (match-beginning 0))))
;; Everything after, we save, to combine with later input.
(set (gud-bashdb-marker-acc-quote)
(substring (gud-bashdb-marker-acc) (match-beginning 0))))
(setq output (concat output (gud-bashdb-marker-acc)))
(set (gud-bashdb-marker-acc-quote) ""))
output)))
(defun gud-bashdb-find-file (f)
(find-file-noselect f))
;;;###autoload
(defun bashdb (command-line)
"Run bashdb on program FILE in buffer *gud-FILE*.
The directory containing FILE becomes the initial working directory
and source-file directory for your debugger."
(interactive
(if xemacsp
(list (read-from-minibuffer "Run bashdb (like this): "
(if (consp gud-bashdb-history)
(car gud-bashdb-history)
(format "%s " gud-bashdb-command-name))
nil nil
'(gud-bashdb-history . 1)))
(list (gud-query-cmdline 'bashdb))
))
(if xemacsp
(progn
(gud-overload-functions '((gud-massage-args . gud-bashdb-massage-args)
(gud-marker-filter . gud-bashdb-marker-filter)
(gud-find-file . gud-bashdb-find-file)))
(gud-common-init command-line gud-bashdb-command-name))
(gud-common-init command-line 'gud-bashdb-massage-args
'gud-bashdb-marker-filter 'gud-bashdb-find-file)
(set (make-local-variable 'gud-minor-mode) 'bashdb))
;; Unsupported commands
;; condition foo set break condition to foo
;; condition clear break condition
;; display EXP evaluate and display EXP for each debug step
;; display show a list of display expressions
;; undisplay N remove display expression N
;; ! string passes string to a shell
;; quit quit
(gud-def gud-break "break %l" "\C-b" "Set breakpoint at current line.")
(gud-def gud-list-break "break" "b" "List breakpoints & break condition.")
(gud-def gud-remove "delete %l" "\C-d" "Remove breakpoint at current line")
(gud-def gud-remove-all "delete" "d" "Clear all breakpoints")
(gud-def gud-cont "continue" "\C-r" "Continue with display.")
(gud-def gud-next "next" "\C-n" "Step one line (skip functions).")
(gud-def gud-print "print %e" "\C-p" "Evaluate bash expression at point.")
(gud-def gud-help "help" "h" "Show all commands.")
(gud-def gud-trace "trace" "t" "Toggle execution trace on/off")
(setq comint-prompt-regexp "^bashdb> ")
(setq paragraph-start comint-prompt-regexp)
(run-hooks 'bashdb-mode-hook))
(provide 'bashdb)
;; bashdb.el ends here
|
