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65a5162550
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@520 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
104 lines
4.4 KiB
EmacsLisp
104 lines
4.4 KiB
EmacsLisp
(require 'gud)
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(provide 'rubydb)
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;; ======================================================================
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;; rubydb functions
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;;; History of argument lists passed to rubydb.
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(defvar gud-rubydb-history nil)
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(defun gud-rubydb-massage-args (file args)
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(cons "-I" (cons "." (cons "-r" (cons "debug" (cons file args))))))
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;; There's no guarantee that Emacs will hand the filter the entire
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;; marker at once; it could be broken up across several strings. We
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;; might even receive a big chunk with several markers in it. If we
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;; receive a chunk of text which looks like it might contain the
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;; beginning of a marker, we save it here between calls to the
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;; filter.
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(defvar gud-rubydb-marker-acc "")
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(defun gud-rubydb-marker-filter (string)
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(save-match-data
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(setq gud-marker-acc (concat gud-marker-acc string))
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(let ((output ""))
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;; Process all the complete markers in this chunk.
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(while (string-match "\032\032\\([^:\n]*\\):\\([0-9]*\\):.*\n"
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gud-marker-acc)
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(setq
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;; Extract the frame position from the marker.
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gud-last-frame
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(cons (substring gud-marker-acc (match-beginning 1) (match-end 1))
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(string-to-int (substring gud-marker-acc
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(match-beginning 2)
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(match-end 2))))
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;; Append any text before the marker to the output we're going
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;; to return - we don't include the marker in this text.
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output (concat output
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(substring gud-marker-acc 0 (match-beginning 0)))
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;; Set the accumulator to the remaining text.
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gud-marker-acc (substring gud-marker-acc (match-end 0))))
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;; Does the remaining text look like it might end with the
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;; beginning of another marker? If it does, then keep it in
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;; gud-marker-acc until we receive the rest of it. Since we
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;; know the full marker regexp above failed, it's pretty simple to
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;; test for marker starts.
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(if (string-match "\032.*\\'" gud-marker-acc)
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(progn
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;; Everything before the potential marker start can be output.
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(setq output (concat output (substring gud-marker-acc
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0 (match-beginning 0))))
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;; Everything after, we save, to combine with later input.
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(setq gud-marker-acc
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(substring gud-marker-acc (match-beginning 0))))
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(setq output (concat output gud-marker-acc)
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gud-marker-acc ""))
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output)))
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(defun gud-rubydb-find-file (f)
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(find-file-noselect f))
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(defvar rubydb-command-name "ruby"
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"File name for executing ruby.")
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;;;###autoload
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(defun rubydb (command-line)
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"Run rubydb on program FILE in buffer *gud-FILE*.
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The directory containing FILE becomes the initial working directory
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and source-file directory for your debugger."
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(interactive
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(list (read-from-minibuffer "Run rubydb (like this): "
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(if (consp gud-rubydb-history)
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(car gud-rubydb-history)
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(concat rubydb-command-name " "))
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nil nil
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'(gud-rubydb-history . 1))))
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(gud-overload-functions '((gud-massage-args . gud-rubydb-massage-args)
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(gud-marker-filter . gud-rubydb-marker-filter)
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(gud-find-file . gud-rubydb-find-file)
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))
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(gud-common-init command-line)
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(gud-def gud-break "b %l" "\C-b" "Set breakpoint at current line.")
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; (gud-def gud-remove "clear %l" "\C-d" "Remove breakpoint at current line")
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(gud-def gud-step "s" "\C-s" "Step one source line with display.")
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(gud-def gud-next "n" "\C-n" "Step one line (skip functions).")
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(gud-def gud-cont "c" "\C-r" "Continue with display.")
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(gud-def gud-finish "finish" "\C-f" "Finish executing current function.")
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(gud-def gud-up "up %p" "<" "Up N stack frames (numeric arg).")
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(gud-def gud-down "down %p" ">" "Down N stack frames (numeric arg).")
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(gud-def gud-print "p %e" "\C-p" "Evaluate ruby expression at point.")
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(setq comint-prompt-regexp "^(rdb:-) ")
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(setq paragraph-start comint-prompt-regexp)
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(run-hooks 'rubydb-mode-hook)
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)
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