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Diffstat (limited to 'sample/rubydb2x.el')
| -rw-r--r-- | sample/rubydb2x.el | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/sample/rubydb2x.el b/sample/rubydb2x.el new file mode 100644 index 0000000000..a74265fb0e --- /dev/null +++ b/sample/rubydb2x.el @@ -0,0 +1,104 @@ +(require 'gud) +(provide 'rubydb) + +;; ====================================================================== +;; rubydb functions + +;;; History of argument lists passed to rubydb. +(defvar gud-rubydb-history nil) + +(defun gud-rubydb-massage-args (file args) + (cons "-I" (cons "." (cons "-r" (cons "debug" (cons file 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. +(defvar gud-rubydb-marker-acc "") + +(defun gud-rubydb-marker-filter (string) + (save-match-data + (setq gud-marker-acc (concat gud-marker-acc string)) + (let ((output "")) + + ;; Process all the complete markers in this chunk. + (while (string-match "\032\032\\([^:\n]*\\):\\([0-9]*\\):.*\n" + gud-marker-acc) + (setq + + ;; Extract the frame position from the marker. + gud-last-frame + (cons (substring gud-marker-acc (match-beginning 1) (match-end 1)) + (string-to-int (substring gud-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-marker-acc 0 (match-beginning 0))) + + ;; Set the accumulator to the remaining text. + gud-marker-acc (substring gud-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-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 "\032.*\\'" gud-marker-acc) + (progn + ;; Everything before the potential marker start can be output. + (setq output (concat output (substring gud-marker-acc + 0 (match-beginning 0)))) + + ;; Everything after, we save, to combine with later input. + (setq gud-marker-acc + (substring gud-marker-acc (match-beginning 0)))) + + (setq output (concat output gud-marker-acc) + gud-marker-acc "")) + + output))) + +(defun gud-rubydb-find-file (f) + (find-file-noselect f)) + +(defvar rubydb-command-name "ruby" + "File name for executing ruby.") + +;;;###autoload +(defun rubydb (command-line) + "Run rubydb on program FILE in buffer *gud-FILE*. +The directory containing FILE becomes the initial working directory +and source-file directory for your debugger." + (interactive + (list (read-from-minibuffer "Run rubydb (like this): " + (if (consp gud-rubydb-history) + (car gud-rubydb-history) + (concat rubydb-command-name " ")) + nil nil + '(gud-rubydb-history . 1)))) + + (gud-overload-functions '((gud-massage-args . gud-rubydb-massage-args) + (gud-marker-filter . gud-rubydb-marker-filter) + (gud-find-file . gud-rubydb-find-file) + )) + (gud-common-init command-line) + + (gud-def gud-break "b %l" "\C-b" "Set breakpoint at current line.") +; (gud-def gud-remove "clear %l" "\C-d" "Remove breakpoint at current line") + (gud-def gud-step "s" "\C-s" "Step one source line with display.") + (gud-def gud-next "n" "\C-n" "Step one line (skip functions).") + (gud-def gud-cont "c" "\C-r" "Continue with display.") + (gud-def gud-finish "finish" "\C-f" "Finish executing current function.") + (gud-def gud-up "up %p" "<" "Up N stack frames (numeric arg).") + (gud-def gud-down "down %p" ">" "Down N stack frames (numeric arg).") + (gud-def gud-print "p %e" "\C-p" "Evaluate ruby expression at point.") + + (setq comint-prompt-regexp "^(rdb:-) ") + (setq paragraph-start comint-prompt-regexp) + (run-hooks 'rubydb-mode-hook) + ) |