* Help display for snippet keybindings much cleaner.

* New very helpful `yas/list-tables'.
* Debug functions now go to their own file. 
* More slight adjustments to snippet loading code.
* Hyperlinks to snippets definition files!
* `yas/key-syntaxes' tweaked, allows "c)" as a key, for example.
This commit is contained in:
capitaomorte 2010-03-17 00:21:09 +00:00
parent ea025980d8
commit affd244f04
3 changed files with 208 additions and 175 deletions

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@ -3,4 +3,4 @@
# contributor: Translated from TextMate Snippet
# name: Copyright Notice
# --
(c) Copyright `date +%Y` $TM_FULLNAME. All Rights Reserved.
(c) Copyright `(replace-regexp-in-string "[[:space:]]+$" "" (shell-command-to-string "date +%Y"))` `user-full-name`. All Rights Reserved.

128
yasnippet-debug.el Normal file
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@ -0,0 +1,128 @@
;;; yasnippet-debug.el --- debug functions for yasnippet
;; Copyright (C) 2010 João Távora
;; Author: João Távora(defun yas/debug-snippet-vars () <joaotavora@gmail.com>
;; 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)))))
(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

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@ -429,7 +429,7 @@ This cafn only work when snippets are loaded from files."
map)
"The keymap active while a snippet expansion is in progress.")
(defvar yas/key-syntaxes (list "w" "w_" "w_." "^ ")
(defvar yas/key-syntaxes (list "w" "w_" "w_." "w_.()" "^ ")
"A list of syntax of a key. This list is tried in the order
to try to find a key. For example, if the list is '(\"w\" \"w_\").
And in emacs-lisp-mode, where \"-\" has the syntax of \"_\":
@ -2462,7 +2462,8 @@ With optional prefix argument KILL quit the window and buffer."
(point-min)
(point-max)
(yas/template-expand-env template))
(when debug
(when (and debug
(require 'yasnippet-debug nil t))
(add-hook 'post-command-hook 'yas/debug-snippet-vars 't 'local))))
(t
(message "[yas] Cannot test snippet for unknown major mode")))))
@ -2471,47 +2472,53 @@ With optional prefix argument KILL quit the window and buffer."
"Display snippets for each table."
(interactive (list (y-or-n-p "Show also non-active tables?")
nil))
(with-output-to-temp-buffer "*YASnippet tables*"
(let ((tables (or (and all-tables
(let ((all))
(maphash #'(lambda (k v)
(push v all))
yas/snippet-tables)
all))
(yas/get-snippet-tables))))
(cond ((not by-name-hash)
(princ "YASnippet tables by UUID: \n")
(dolist (table tables)
(princ (format "\nSnippet table `%s':\n\n" (yas/snippet-table-name table)))
(let ((templates))
(maphash #'(lambda (k v)
(push v templates))
(yas/snippet-table-uidhash table))
(dolist (p templates)
(let ((name (yas/template-name p)))
(princ (format " * %s" name))
(princ (make-string (max (- 50 (length name))
1) ? ))
(when (yas/template-key p)
(princ (format "key \"%s\" " (yas/template-key p))))
(when (yas/template-keybinding p)
(princ (format "bound to %s " (key-description (yas/template-keybinding p)))))
(princ "\n"))))))
(t
(princ "\n\nYASnippet tables by NAMEHASH: \n")
(dolist (table tables)
(princ (format "\nSnippet table `%s':\n\n" (yas/snippet-table-name table)))
(let ((keys))
(maphash #'(lambda (k v)
(push k keys))
(yas/snippet-table-hash table))
(dolist (key keys)
(princ (format " key %s maps snippets: %s\n" key
(let ((names))
(maphash #'(lambda (k v)
(push k names))
(gethash key (yas/snippet-table-hash table)))
names)))))))))))
(let ((buffer (get-buffer-create "*YASnippet tables*"))
(tables (or (and all-tables
(let ((all))
(maphash #'(lambda (k v)
(push v all))
yas/snippet-tables)
all))
(yas/get-snippet-tables))))
(with-current-buffer buffer
(let ((buffer-read-only nil))
(erase-buffer)
(cond ((not by-name-hash)
(insert "YASnippet tables by UUID: \n")
(dolist (table tables)
(insert (format "\nSnippet table `%s':\n\n" (yas/snippet-table-name table)))
(let ((templates))
(maphash #'(lambda (k v)
(push v templates))
(yas/snippet-table-uidhash table))
(dolist (p templates)
(let ((name (yas/template-name p)))
(insert (propertize (format "\\\\snippet `%s'" name) 'yasnippet p))
(insert (make-string (max (- 50 (length name))
1) ? ))
(when (yas/template-key p)
(insert (format "key \"%s\" " (yas/template-key p))))
(when (yas/template-keybinding p)
(insert (format "bound to %s " (key-description (yas/template-keybinding p)))))
(insert "\n")))))
(yas/create-snippet-xrefs)
(help-mode))
(t
(insert "\n\nYASnippet tables by NAMEHASH: \n")
(dolist (table tables)
(insert (format "\nSnippet table `%s':\n\n" (yas/snippet-table-name table)))
(let ((keys))
(maphash #'(lambda (k v)
(push k keys))
(yas/snippet-table-hash table))
(dolist (key keys)
(insert (format " key %s maps snippets: %s\n" key
(let ((names))
(maphash #'(lambda (k v)
(push k names))
(gethash key (yas/snippet-table-hash table)))
names))))))))))
(display-buffer buffer)))
;;; User convenience functions, for using in snippet definitions
@ -3929,7 +3936,8 @@ object satisfying `yas/field-p' to restrict the expansion to.")))
(put 'yas/expand-from-keymap 'function-documentation '(yas/expand-from-keymap-doc))
(defun yas/expand-from-keymap-doc ()
"A doc synthethizer for `yas/expand-from-keymap-doc'."
(concat "Expand some snippets from keymaps.\n\nMay fall back to original binding."
(add-hook 'temp-buffer-show-hook 'yas/snippet-description-finish-runonce)
(concat "Expand/run snippets from keymaps, possibly falling back to original binding.\n"
(when (eq this-command 'describe-key)
(let* ((vec (this-single-command-keys))
(templates (mapcan #'(lambda (table)
@ -3937,146 +3945,43 @@ object satisfying `yas/field-p' to restrict the expansion to.")))
(yas/get-snippet-tables)))
(yas/direct-keymaps nil)
(fallback (key-binding vec)))
(concat "In this particular case\nmy guess is it would "
(concat "In this case, "
(when templates
(concat "expand the snippets:\n"
(concat "these snippets are bound to this key:\n"
(yas/template-pretty-list templates)
"\n\nIf no expansion possible, "))
"\n\nIf none of these expands, "))
(or (and fallback
(format "call command `%s'." (pp-to-string fallback)))
"do nothing."))))))
(format "fallback `%s' will be called." (pp-to-string fallback)))
"no fallback keybinding is called."))))))
(defun yas/template-pretty-list (templates)
(let ((acc))
(let ((acc)
(yas/buffer-local-condition 'always))
(dolist (plate templates)
(setq acc (concat acc "\n*) " (car plate))))
(setq acc (concat acc "\n*) "
(propertize (concat "\\\\snippet `" (car plate) "'")
'yasnippet (cdr plate)))))
acc))
;;; Debug functions. Use (or change) at will whenever needed.
;;
;; some useful debug code for looking up snippet tables
;;
;; (insert (pp
;; (let ((shit))
;; (maphash #'(lambda (k v)
;; (push k shit))
;; (yas/snippet-table-hash (gethash 'ruby-mode yas/snippet-tables)))
;; shit)))
;;
;; and here's a way to do it by namehash
;;
;; (let ((keys))
;; (maphash #'(lambda (k v)
;; (push k keys))
;; (yas/snippet-table-hash table))
;; (dolist (key keys)
;; (princ (format " key %s maps snippets: %s\n" key
;; (let ((names))
;; (maphash #'(lambda (k v)
;; (push k names))
;; (gethash key (yas/snippet-table-hash table)))
;; names)))))
;;
(define-button-type 'help-snippet-def
:supertype 'help-xref
'help-function (lambda (template) (yas/visit-snippet-file-1 template))
'help-echo (purecopy "mouse-2, RET: find snippets's definition"))
(defun yas/snippet-description-finish-runonce ()
"Final adjustments for the help buffer when snippets are concerned."
(yas/create-snippet-xrefs)
(remove-hook 'temp-buffer-show-hook 'yas/snippet-description-finish-runonce))
(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)))))
(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)))
(defun yas/create-snippet-xrefs ()
(save-excursion
(beginning-of-buffer)
(while (search-forward-regexp "\\\\\\\\snippet[ \s\t]+\\(`[^']+'\\)" nil t)
(let ((template (get-text-property (match-beginning 1)
'yasnippet)))
(when template
(help-xref-button 1 'help-snippet-def template)
(kill-region (match-beginning 0) (match-beginning 1)))))))
;;; Some hacks: