--- /dev/null
+;;; yasnippet-debug.el --- debug functions for yasnippet
+
+;; Copyright (C) 2010 João Távora
+
+;; Author: João Távora
+;; Keywords: emulations, convenience
+
+;; 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 3 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, see <http://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;; Just some debug functions
+
+;;; Code:
+
+(require 'yasnippet)
+
+(defun yas-debug-snippet-vars ()
+ "Debug snippets, fields, mirrors and the `buffer-undo-list'."
+ (interactive)
+ (with-output-to-temp-buffer "*YASnippet trace*"
+ (princ "Interesting YASnippet vars: \n\n")
+
+ (princ (format "\nPost command hook: %s\n" post-command-hook))
+ (princ (format "\nPre command hook: %s\n" pre-command-hook))
+
+ (princ (format "%s live snippets in total\n" (length (yas--snippets-at-point (quote all-snippets)))))
+ (princ (format "%s overlays in buffer:\n\n" (length (overlays-in (point-min) (point-max)))))
+ (princ (format "%s live snippets at point:\n\n" (length (yas--snippets-at-point))))
+
+
+ (dolist (snippet (yas--snippets-at-point))
+ (princ (format "\tsid: %d control overlay from %d to %d\n"
+ (yas--snippet-id snippet)
+ (overlay-start (yas--snippet-control-overlay snippet))
+ (overlay-end (yas--snippet-control-overlay snippet))))
+ (princ (format "\tactive field: %d from %s to %s covering \"%s\"\n"
+ (yas--field-number (yas--snippet-active-field snippet))
+ (marker-position (yas--field-start (yas--snippet-active-field snippet)))
+ (marker-position (yas--field-end (yas--snippet-active-field snippet)))
+ (buffer-substring-no-properties (yas--field-start (yas--snippet-active-field snippet)) (yas--field-end (yas--snippet-active-field snippet)))))
+ (when (yas--snippet-exit snippet)
+ (princ (format "\tsnippet-exit: at %s next: %s\n"
+ (yas--exit-marker (yas--snippet-exit snippet))
+ (yas--exit-next (yas--snippet-exit snippet)))))
+ (dolist (field (yas--snippet-fields snippet))
+ (princ (format "\tfield: %d from %s to %s covering \"%s\" next: %s%s\n"
+ (yas--field-number field)
+ (marker-position (yas--field-start field))
+ (marker-position (yas--field-end field))
+ (buffer-substring-no-properties (yas--field-start field) (yas--field-end field))
+ (yas--debug-format-fom-concise (yas--field-next field))
+ (if (yas--field-parent-field field) "(has a parent)" "")))
+ (dolist (mirror (yas--field-mirrors field))
+ (princ (format "\t\tmirror: from %s to %s covering \"%s\" next: %s\n"
+ (marker-position (yas--mirror-start mirror))
+ (marker-position (yas--mirror-end mirror))
+ (buffer-substring-no-properties (yas--mirror-start mirror) (yas--mirror-end mirror))
+ (yas--debug-format-fom-concise (yas--mirror-next mirror)))))))
+
+ (princ (format "\nUndo is %s and point-max is %s.\n"
+ (if (eq buffer-undo-list t)
+ "DISABLED"
+ "ENABLED")
+ (point-max)))
+ (unless (eq buffer-undo-list t)
+ (princ (format "Undpolist has %s elements. First 10 elements follow:\n" (length buffer-undo-list)))
+ (let ((first-ten (subseq buffer-undo-list 0 19)))
+ (dolist (undo-elem first-ten)
+ (princ (format "%2s: %s\n" (position undo-elem first-ten) (truncate-string-to-width (format "%s" undo-elem) 70))))))))
+
+(defun yas--debug-format-fom-concise (fom)
+ (when fom
+ (cond ((yas--field-p fom)
+ (format "field %d from %d to %d"
+ (yas--field-number fom)
+ (marker-position (yas--field-start fom))
+ (marker-position (yas--field-end fom))))
+ ((yas--mirror-p fom)
+ (format "mirror from %d to %d"
+ (marker-position (yas--mirror-start fom))
+ (marker-position (yas--mirror-end fom))))
+ (t
+ (format "snippet exit at %d"
+ (marker-position (yas--fom-start fom)))))))
+
+
+(defun yas-exterminate-package ()
+ (interactive)
+ (yas-global-mode -1)
+ (yas-minor-mode -1)
+ (mapatoms #'(lambda (atom)
+ (when (string-match "yas[-/]" (symbol-name atom))
+ (unintern atom obarray)))))
+
+(defun yas-debug-test (&optional quiet)
+ (interactive "P")
+ (yas-load-directory (or (and (listp yas-snippet-dirs)
+ (first yas-snippet-dirs))
+ yas-snippet-dirs
+ "~/Source/yasnippet/snippets/"))
+ (set-buffer (switch-to-buffer "*YAS TEST*"))
+ (mapc #'yas--commit-snippet (yas--snippets-at-point 'all-snippets))
+ (erase-buffer)
+ (setq buffer-undo-list nil)
+ (setq undo-in-progress nil)
+ (snippet-mode)
+ (yas-minor-mode 1)
+ (let ((abbrev))
+ (setq abbrev "$f")
+ (insert abbrev))
+ (unless quiet
+ (add-hook 'post-command-hook 'yas-debug-snippet-vars 't 'local)))
+
+(provide 'yasnippet-debug)
+;;; yasnippet-debug.el ends here