;;; yasnippet.el --- Yet another snippet extension for Emacs.
;; Copyright (C) 2008-2013, 2015 Free Software Foundation, Inc.
-;; Authors: pluskid <pluskid@gmail.com>, João Távora <joaotavora@gmail.com>
-;; Maintainer: João Távora <joaotavora@gmail.com>
+;; Authors: pluskid <pluskid@gmail.com>, João Távora <joaotavora@gmail.com>, Noam Postavsky <npostavs@gmail.com>
+;; Maintainer: Noam Postavsky <npostavs@gmail.com>
;; Version: 0.8.1
;; Package-version: 0.8.0
;; X-URL: http://github.com/capitaomorte/yasnippet
(when load-file-name
(concat (file-name-directory load-file-name) "snippets")))
+(defconst yas--default-user-snippets-dir
+ (concat user-emacs-directory "snippets"))
+
(defcustom yas-snippet-dirs (remove nil
- (list "~/.emacs.d/snippets"
+ (list yas--default-user-snippets-dir
'yas-installed-snippets-dir))
"List of top-level snippet directories.
(defcustom yas-prompt-functions '(yas-x-prompt
yas-dropdown-prompt
yas-completing-prompt
- yas-ido-prompt
+ yas-maybe-ido-prompt
yas-no-prompt)
"Functions to prompt for keys, templates, etc interactively.
"Hooks to run just before expanding a snippet.")
(defvar yas-buffer-local-condition
- '(if (and (or (fourth (syntax-ppss))
- (fifth (syntax-ppss)))
- this-command
- (eq this-command 'yas-expand-from-trigger-key))
+ '(if (and (let ((ppss (syntax-ppss)))
+ (or (nth 3 ppss) (nth 4 ppss)))
+ (memq this-command '(yas-expand yas-expand-from-trigger-key
+ yas-expand-from-keymap)))
'(require-snippet-condition . force-in-comment)
t)
"Snippet expanding condition.
(defun yas--modes-to-activate (&optional mode)
"Compute list of mode symbols that are active for `yas-expand'
and friends."
- (let (dfs explored)
- (setq dfs (lambda (mode)
- (unless (memq mode explored)
- (push mode explored)
- (loop for neighbour
- in (cl-list* (get mode 'derived-mode-parent)
- (ignore-errors (symbol-function mode))
- (gethash mode yas--parents))
- when (and neighbour
- (not (memq neighbour explored))
- (symbolp neighbour))
- do (funcall dfs neighbour)))))
- (if mode
- (funcall dfs mode)
- (mapcar dfs (cons major-mode yas--extra-modes)))
- explored))
+ (let* ((explored (if mode (list mode) ; Building up list in reverse.
+ (cons major-mode (reverse yas--extra-modes))))
+ (dfs
+ (lambda (mode)
+ (cl-loop for neighbour
+ in (cl-list* (get mode 'derived-mode-parent)
+ (ignore-errors (symbol-function mode))
+ (gethash mode yas--parents))
+ when (and neighbour
+ (not (memq neighbour explored))
+ (symbolp neighbour))
+ do (push neighbour explored)
+ (funcall dfs neighbour)))))
+ (mapcar dfs explored)
+ (nreverse explored)))
(defvar yas-minor-mode-hook nil
"Hook run when `yas-minor-mode' is turned on.")
:visible (yas--show-menu-p ',mode)))
menu-keymap))
-
-(defmacro yas--called-interactively-p (&optional kind)
- "A backward-compatible version of `called-interactively-p'.
-
-Optional KIND is as documented at `called-interactively-p'
-in GNU Emacs 24.1 or higher."
- (if (string< emacs-version "24.1")
- '(called-interactively-p)
- `(called-interactively-p ,kind)))
-
\f
;;; Template-related and snippet loading functions
(point-max)))
(setq bound (point))
(goto-char (point-min))
- (while (re-search-forward "^# *\\([^ ]+?\\) *: *\\(.*\\)$" bound t)
+ (while (re-search-forward "^# *\\([^ ]+?\\) *: *\\(.*?\\)[[:space:]]*$" bound t)
(when (string= "uuid" (match-string-no-properties 1))
(setq uuid (match-string-no-properties 2)))
(when (string= "type" (match-string-no-properties 1))
(if display-fn (mapcar display-fn choices) choices)))))
(keyboard-quit))))
+(defun yas-maybe-ido-prompt (prompt choices &optional display-fn)
+ (when (bound-and-true-p ido-mode)
+ (yas-ido-prompt prompt choices display-fn)))
+
(defun yas-ido-prompt (prompt choices &optional display-fn)
- (when (and (fboundp 'ido-completing-read)
- (or (>= emacs-major-version 24)
- ido-mode))
- (yas-completing-prompt prompt choices display-fn #'ido-completing-read)))
+ (require 'ido)
+ (yas-completing-prompt prompt choices display-fn #'ido-completing-read))
(defun yas-dropdown-prompt (_prompt choices &optional display-fn)
(when (fboundp 'dropdown-list)
(funcall fun)))
;; Look for buffers that are already in `mode-sym', and so
;; need the new snippets immediately...
- ;;
- (when use-jit
+ ;;
+ (when use-jit
(cl-loop for buffer in (buffer-list)
do (with-current-buffer buffer
(when (eq major-mode mode-sym)
(push buffer impatient-buffers)))))))
;; ...after TOP-LEVEL-DIR has been completely loaded, call
;; `yas--load-pending-jits' in these impatient buffers.
- ;;
+ ;;
(cl-loop for buffer in impatient-buffers
do (with-current-buffer buffer (yas--load-pending-jits))))
(when interactive
"Reload the directories listed in `yas-snippet-dirs' or
prompt the user to select one."
(let (errors)
- (if yas-snippet-dirs
- (dolist (directory (reverse (yas-snippet-dirs)))
- (cond ((file-directory-p directory)
- (yas-load-directory directory (not nojit))
- (if nojit
- (yas--message 3 "Loaded %s" directory)
- (yas--message 3 "Prepared just-in-time loading for %s" directory)))
- (t
- (push (yas--message 0 "Check your `yas-snippet-dirs': %s is not a directory" directory) errors))))
- (call-interactively 'yas-load-directory))
+ (if (null yas-snippet-dirs)
+ (call-interactively 'yas-load-directory)
+ (when (member yas--default-user-snippets-dir yas-snippet-dirs)
+ (make-directory yas--default-user-snippets-dir t))
+ (dolist (directory (reverse (yas-snippet-dirs)))
+ (cond ((file-directory-p directory)
+ (yas-load-directory directory (not nojit))
+ (if nojit
+ (yas--message 3 "Loaded %s" directory)
+ (yas--message 3 "Prepared just-in-time loading for %s" directory)))
+ (t
+ (push (yas--message 0 "Check your `yas-snippet-dirs': %s is not a directory" directory) errors)))))
errors))
(defun yas-reload-all (&optional no-jit interactive)
(interactive)
(message (concat "yasnippet (version "
yas--version
- ") -- pluskid <pluskid@gmail.com>/joaotavora <joaotavora@gmail.com>")))
+ ") -- pluskid/joaotavora/npostavs")))
\f
;;; Apropos snippet menu:
;; loops when other extensions use mechanisms similar
;; to `yas--keybinding-beyond-yasnippet'. (github #525
;; and #526)
- ;;
+ ;;
(yas-minor-mode nil)
(beyond-yasnippet (yas--keybinding-beyond-yasnippet)))
(yas--message 4 "Falling back to %s" beyond-yasnippet)
(assert (or (null beyond-yasnippet) (commandp beyond-yasnippet)))
- (setq this-original-command beyond-yasnippet)
+ (setq this-command beyond-yasnippet)
(when beyond-yasnippet
(call-interactively beyond-yasnippet))))
((and (listp yas-fallback-behavior)
(interactive)
(let* ((yas-buffer-local-condition 'always)
(templates (yas--all-templates (yas--get-snippet-tables)))
- (yas-prompt-functions '(yas-ido-prompt yas-completing-prompt))
(template (and templates
(or (yas--prompt-for-template templates
"Choose a snippet template to edit: ")
(let ((main-dir (replace-regexp-in-string
"/+$" ""
(or (first (or (yas-snippet-dirs)
- (setq yas-snippet-dirs '("~/.emacs.d/snippets")))))))
+ (setq yas-snippet-dirs (list yas--default-user-snippets-dir)))))))
(tables (or (and table
(list table))
(yas--get-snippet-tables))))
The most recently-inserted snippets are returned first."
(sort
- (remove nil (remove-duplicates (mapcar #'(lambda (ov)
- (overlay-get ov 'yas--snippet))
- (if all-snippets
- (overlays-in (point-min) (point-max))
- (nconc (overlays-at (point)) (overlays-at (1- (point))))))))
+ (delq nil (delete-dups
+ (mapcar (lambda (ov) (overlay-get ov 'yas--snippet))
+ (if all-snippets (overlays-in (point-min) (point-max))
+ (nconc (overlays-at (point))
+ (overlays-at (1- (point))))))))
#'(lambda (s1 s2)
(<= (yas--snippet-id s2) (yas--snippet-id s1)))))
(defvar yas--inhibit-overlay-hooks nil
"Bind this temporarily to non-nil to prevent running `yas--on-*-modification'.")
-(defmacro yas--inhibit-overlay-hooks (&rest body)
- "Run BODY with `yas--inhibit-overlay-hooks' set to t."
- (declare (indent 0))
- `(let ((yas--inhibit-overlay-hooks t))
- ,@body))
-
(defvar yas-snippet-beg nil "Beginning position of the last snippet committed.")
(defvar yas-snippet-end nil "End position of the last snippet committed.")
(setq yas-snippet-end (overlay-end control-overlay))
(delete-overlay control-overlay))
- (yas--inhibit-overlay-hooks
+ (let ((yas--inhibit-overlay-hooks t))
(when yas--active-field-overlay
(delete-overlay yas--active-field-overlay))
(when yas--field-protection-overlays
(overlay-put yas--active-field-overlay 'insert-behind-hooks
'(yas--on-field-overlay-modification))))
-(defun yas--on-field-overlay-modification (overlay after? _beg _end &optional _length)
+(defun yas--skip-and-clear-field-p (field _beg _end &optional _length)
+ "Tell if newly modified FIELD should be cleared and skipped.
+BEG, END and LENGTH like overlay modification hooks."
+ (and (not (yas--field-modified-p field))
+ (= (point) (yas--field-start field))
+ (require 'delsel)
+ ;; `yank' sets `this-command' to t during execution.
+ (let ((clearp (get (if (commandp this-command) this-command
+ this-original-command)
+ 'delete-selection)))
+ (when (and (not (memq clearp '(yank supersede kill)))
+ (functionp clearp))
+ (setq clearp (funcall clearp)))
+ clearp)))
+
+(defun yas--on-field-overlay-modification (overlay after? beg end &optional length)
"Clears the field and updates mirrors, conditionally.
-Only clears the field if it hasn't been modified and it point it
-at field start. This hook doesn't do anything if an undo is in
-progress."
+Only clears the field if it hasn't been modified and point is at
+field start. This hook does nothing if an undo is in progress."
(unless (or yas--inhibit-overlay-hooks
+ (not (overlayp yas--active-field-overlay)) ; Avoid Emacs bug #21824.
(yas--undo-in-progress))
(let* ((field (overlay-get overlay 'yas--field))
(snippet (overlay-get yas--active-field-overlay 'yas--snippet)))
(yas--field-update-display field))
(yas--update-mirrors snippet))
(field
- (when (and (not after?)
- (not (yas--field-modified-p field))
- (eq (point) (if (markerp (yas--field-start field))
- (marker-position (yas--field-start field))
- (yas--field-start field))))
+ (when (yas--skip-and-clear-field-p field beg end)
(yas--skip-and-clear field))
(setf (yas--field-modified-p field) t))))))
\f
;; As of github #537 this no longer inhibits the command by issuing an
;; error: all the snippets at point, including nested snippets, are
;; automatically commited and the current command can proceed.
-;;
+;;
(defun yas--make-move-field-protection-overlays (snippet field)
"Place protection overlays surrounding SNIPPET's FIELD.
;;
(when (< (buffer-size) end)
(save-excursion
- (yas--inhibit-overlay-hooks
+ (let ((yas--inhibit-overlay-hooks t))
(goto-char (point-max))
(newline))))
;; go on to normal overlay creation/moving
;; them mostly to make the undo information
;;
(setq yas--start-column (current-column))
- (yas--inhibit-overlay-hooks
+ (let ((yas--inhibit-overlay-hooks t))
(setq snippet
(if expand-env
(eval `(let* ,expand-env
(not (string= reflection (buffer-substring-no-properties (yas--mirror-start mirror)
(yas--mirror-end mirror)))))
(goto-char (yas--mirror-start mirror))
- (yas--inhibit-overlay-hooks
+ (let ((yas--inhibit-overlay-hooks t))
(insert reflection))
(if (> (yas--mirror-end mirror) (point))
(delete-region (point) (yas--mirror-end mirror))
(yas--field-end field)))))
(setf (yas--field-modified-p field) t)
(goto-char (yas--field-start field))
- (yas--inhibit-overlay-hooks
+ (let ((yas--inhibit-overlay-hooks t))
(insert transformed)
(if (> (yas--field-end field) (point))
(delete-region (point) (yas--field-end field))