-;;; thingatpt.el --- get the `thing' at point
+;;; thingatpt.el --- get the `thing' at point -*- lexical-binding:t -*-
-;; Copyright (C) 1991-1998, 2000-2013 Free Software Foundation, Inc.
+;; Copyright (C) 1991-1998, 2000-2016 Free Software Foundation, Inc.
;; Author: Mike Williams <mikew@gopher.dosli.govt.nz>
-;; Maintainer: FSF
+;; Maintainer: emacs-devel@gnu.org
;; Keywords: extensions, matching, mouse
;; Created: Thu Mar 28 13:48:23 1991
(if (get thing 'bounds-of-thing-at-point)
(funcall (get thing 'bounds-of-thing-at-point))
(let ((orig (point)))
- (condition-case nil
- (save-excursion
- ;; Try moving forward, then back.
- (funcall ;; First move to end.
- (or (get thing 'end-op)
- (lambda () (forward-thing thing 1))))
- (funcall ;; Then move to beg.
- (or (get thing 'beginning-op)
- (lambda () (forward-thing thing -1))))
- (let ((beg (point)))
- (if (<= beg orig)
- ;; If that brings us all the way back to ORIG,
- ;; it worked. But END may not be the real end.
- ;; So find the real end that corresponds to BEG.
- ;; FIXME: in which cases can `real-end' differ from `end'?
- (let ((real-end
- (progn
- (funcall
- (or (get thing 'end-op)
- (lambda () (forward-thing thing 1))))
- (point))))
- (when (and (<= orig real-end) (< beg real-end))
- (cons beg real-end)))
- (goto-char orig)
- ;; Try a second time, moving backward first and then forward,
- ;; so that we can find a thing that ends at ORIG.
- (funcall ;; First, move to beg.
- (or (get thing 'beginning-op)
- (lambda () (forward-thing thing -1))))
- (funcall ;; Then move to end.
- (or (get thing 'end-op)
- (lambda () (forward-thing thing 1))))
- (let ((end (point))
- (real-beg
+ (ignore-errors
+ (save-excursion
+ ;; Try moving forward, then back.
+ (funcall ;; First move to end.
+ (or (get thing 'end-op)
+ (lambda () (forward-thing thing 1))))
+ (funcall ;; Then move to beg.
+ (or (get thing 'beginning-op)
+ (lambda () (forward-thing thing -1))))
+ (let ((beg (point)))
+ (if (<= beg orig)
+ ;; If that brings us all the way back to ORIG,
+ ;; it worked. But END may not be the real end.
+ ;; So find the real end that corresponds to BEG.
+ ;; FIXME: in which cases can `real-end' differ from `end'?
+ (let ((real-end
(progn
(funcall
- (or (get thing 'beginning-op)
- (lambda () (forward-thing thing -1))))
+ (or (get thing 'end-op)
+ (lambda () (forward-thing thing 1))))
(point))))
- (if (and (<= real-beg orig) (<= orig end) (< real-beg end))
- (cons real-beg end))))))
- (error nil)))))
+ (when (and (<= orig real-end) (< beg real-end))
+ (cons beg real-end)))
+ (goto-char orig)
+ ;; Try a second time, moving backward first and then forward,
+ ;; so that we can find a thing that ends at ORIG.
+ (funcall ;; First, move to beg.
+ (or (get thing 'beginning-op)
+ (lambda () (forward-thing thing -1))))
+ (funcall ;; Then move to end.
+ (or (get thing 'end-op)
+ (lambda () (forward-thing thing 1))))
+ (let ((end (point))
+ (real-beg
+ (progn
+ (funcall
+ (or (get thing 'beginning-op)
+ (lambda () (forward-thing thing -1))))
+ (point))))
+ (if (and (<= real-beg orig) (<= orig end) (< real-beg end))
+ (cons real-beg end))))))))))
;;;###autoload
(defun thing-at-point (thing &optional no-properties)
(let ((bounds (bounds-of-thing-at-point thing)))
(when bounds
(buffer-substring (car bounds) (cdr bounds)))))))
- (when (and text no-properties)
+ (when (and text no-properties (sequencep text))
(set-text-properties 0 (length text) nil text))
text))
;; Sexps
(defun in-string-p ()
- "Return non-nil if point is in a string.
-\[This is an internal function.]"
+ "Return non-nil if point is in a string."
+ (declare (obsolete "use (nth 3 (syntax-ppss)) instead." "25.1"))
(let ((orig (point)))
(save-excursion
(beginning-of-defun)
(nth 3 (parse-partial-sexp (point) orig)))))
-(defun end-of-sexp ()
- "Move point to the end of the current sexp.
-\[This is an internal function.]"
+(defun thing-at-point--end-of-sexp ()
+ "Move point to the end of the current sexp."
(let ((char-syntax (syntax-after (point))))
(if (or (eq char-syntax ?\))
- (and (eq char-syntax ?\") (in-string-p)))
+ (and (eq char-syntax ?\") (nth 3 (syntax-ppss))))
(forward-char 1)
(forward-sexp 1))))
-(put 'sexp 'end-op 'end-of-sexp)
+(define-obsolete-function-alias 'end-of-sexp
+ 'thing-at-point--end-of-sexp "25.1"
+ "This is an internal thingatpt function and should not be used.")
-(defun beginning-of-sexp ()
- "Move point to the beginning of the current sexp.
-\[This is an internal function.]"
+(put 'sexp 'end-op 'thing-at-point--end-of-sexp)
+
+(defun thing-at-point--beginning-of-sexp ()
+ "Move point to the beginning of the current sexp."
(let ((char-syntax (char-syntax (char-before))))
(if (or (eq char-syntax ?\()
- (and (eq char-syntax ?\") (in-string-p)))
+ (and (eq char-syntax ?\") (nth 3 (syntax-ppss))))
(forward-char -1)
(forward-sexp -1))))
-(put 'sexp 'beginning-op 'beginning-of-sexp)
+(define-obsolete-function-alias 'beginning-of-sexp
+ 'thing-at-point--beginning-of-sexp "25.1"
+ "This is an internal thingatpt function and should not be used.")
+
+(put 'sexp 'beginning-op 'thing-at-point--beginning-of-sexp)
;; Lists
(defun thing-at-point-bounds-of-list-at-point ()
"Return the bounds of the list at point.
-\[Internal function used by `bounds-of-thing-at-point'.]"
+[Internal function used by `bounds-of-thing-at-point'.]"
(save-excursion
(let ((opoint (point))
- (beg (condition-case nil
- (progn (up-list -1)
- (point))
- (error nil))))
- (condition-case nil
- (if beg
- (progn (forward-sexp)
- (cons beg (point)))
- ;; Are we are at the beginning of a top-level sexp?
- (forward-sexp)
- (let ((end (point)))
- (backward-sexp)
- (if (>= opoint (point))
- (cons opoint end))))
- (error nil)))))
+ (beg (ignore-errors
+ (up-list -1)
+ (point))))
+ (ignore-errors
+ (if beg
+ (progn (forward-sexp)
+ (cons beg (point)))
+ ;; Are we are at the beginning of a top-level sexp?
+ (forward-sexp)
+ (let ((end (point)))
+ (backward-sexp)
+ (if (>= opoint (point))
+ (cons opoint end))))))))
;; Defuns
"finger://" "fish://" "ftp://" "geo:" "git://" "go:" "gopher://"
"h323:" "http://" "https://" "im:" "imap://" "info:" "ipp:"
"irc://" "irc6://" "ircs://" "iris.beep:" "jar:" "ldap://"
- "ldaps://" "mailto:" "mid:" "mtqp://" "mupdate://" "news:"
- "nfs://" "nntp://" "opaquelocktoken:" "pop://" "pres:"
+ "ldaps://" "magnet:" "mailto:" "mid:" "mtqp://" "mupdate://"
+ "news:" "nfs://" "nntp://" "opaquelocktoken:" "pop://" "pres:"
"resource://" "rmi://" "rsync://" "rtsp://" "rtspu://" "service:"
"sftp://" "sip:" "sips:" "smb://" "sms:" "snmp://" "soap.beep://"
"soap.beeps://" "ssh://" "svn://" "svn+ssh://" "tag:" "tel:"
"uuid:" "vemmi://" "webcal://" "xri://" "xmlrpc.beep://"
"xmlrpc.beeps://" "z39.50r://" "z39.50s://" "xmpp:"
;; Compatibility
- "fax:" "mms://" "mmsh://" "modem:" "prospero:" "snews:"
+ "fax:" "man:" "mms://" "mmsh://" "modem:" "prospero:" "snews:"
"wais://")
"List of URI schemes recognized by `thing-at-point-url-at-point'.
Each string in this list should correspond to the start of a
(scan-lists (1- url-beg) 1 0))))
(not (blink-matching-check-mismatch (1- url-beg) paren-end))
(setq end (1- paren-end)))
- (cons url-beg end)))))
+ ;; Ensure PT is actually within BOUNDARY. Check the following
+ ;; example with point on the beginning of the line:
+ ;;
+ ;; 3,1406710489,http://gnu.org,0,"0"
+ (and (<= url-beg pt end) (cons url-beg end))))))
(put 'url 'thing-at-point 'thing-at-point-url-at-point)
htb ret)
(while htbs
(setq htb (car htbs) htbs (cdr htbs))
- (condition-case nil
- (progn
- ;; errs: htb symbol may be unbound, or not a hash-table.
- ;; gnus-gethash is just a macro for intern-soft.
- (and (symbol-value htb)
- (intern-soft string (symbol-value htb))
- (setq ret string htbs nil))
- ;; If we made it this far, gnus is running, so ignore "heads":
- (setq heads nil))
- (error nil)))
+ (ignore-errors
+ ;; errs: htb symbol may be unbound, or not a hash-table.
+ ;; gnus-gethash is just a macro for intern-soft.
+ (and (symbol-value htb)
+ (intern-soft string (symbol-value htb))
+ (setq ret string htbs nil))
+ ;; If we made it this far, gnus is running, so ignore "heads":
+ (setq heads nil)))
(or ret (not heads)
(let ((head (string-match "\\`\\([[:lower:]]+\\)\\." string)))
(and head (setq head (substring string 0 (match-end 1)))
;; matches that straddle the start position so we search forwards once
;; and then back repeatedly and then back up a char at a time.
-(defun thing-at-point-looking-at (regexp)
+(defun thing-at-point-looking-at (regexp &optional distance)
"Return non-nil if point is in or just after a match for REGEXP.
Set the match data from the earliest such match ending at or after
-point."
+point.
+
+Optional argument DISTANCE limits search for REGEXP forward and
+back from point."
(save-excursion
- (let ((old-point (point)) match)
+ (let ((old-point (point))
+ (forward-bound (and distance (+ (point) distance)))
+ (backward-bound (and distance (- (point) distance)))
+ match prev-pos new-pos)
(and (looking-at regexp)
(>= (match-end 0) old-point)
(setq match (point)))
;; Search back repeatedly from end of next match.
;; This may fail if next match ends before this match does.
- (re-search-forward regexp nil 'limit)
- (while (and (re-search-backward regexp nil t)
+ (re-search-forward regexp forward-bound 'limit)
+ (setq prev-pos (point))
+ (while (and (setq new-pos (re-search-backward regexp backward-bound t))
+ ;; Avoid inflooping with some regexps, such as "^",
+ ;; matching which never moves point.
+ (< new-pos prev-pos)
(or (> (match-beginning 0) old-point)
(and (looking-at regexp) ; Extend match-end past search start
(>= (match-end 0) old-point)
(put 'email 'bounds-of-thing-at-point
(lambda ()
- (let ((thing (thing-at-point-looking-at thing-at-point-email-regexp)))
+ (let ((thing (thing-at-point-looking-at
+ thing-at-point-email-regexp 500)))
(if thing
(let ((beginning (match-beginning 0))
(end (match-end 0)))
"Return the sentence at point. See `thing-at-point'."
(thing-at-point 'sentence))
-(defun read-from-whole-string (str)
+(defun thing-at-point--read-from-whole-string (str)
"Read a Lisp expression from STR.
Signal an error if the entire string was not used."
(let* ((read-data (read-from-string str))
(error "Can't read whole string")
(car read-data))))
+(define-obsolete-function-alias 'read-from-whole-string
+ 'thing-at-point--read-from-whole-string "25.1"
+ "This is an internal thingatpt function and should not be used.")
+
(defun form-at-point (&optional thing pred)
- (let ((sexp (condition-case nil
- (read-from-whole-string (thing-at-point (or thing 'sexp)))
- (error nil))))
+ (let ((sexp (ignore-errors
+ (thing-at-point--read-from-whole-string
+ (thing-at-point (or thing 'sexp))))))
(if (or (not pred) (funcall pred sexp)) sexp)))
;;;###autoload
;;;###autoload
(defun number-at-point ()
"Return the number at point, or nil if none is found."
- (form-at-point 'sexp 'numberp))
+ (when (thing-at-point-looking-at "-?[0-9]+\\.?[0-9]*" 500)
+ (string-to-number
+ (buffer-substring (match-beginning 0) (match-end 0)))))
+
(put 'number 'thing-at-point 'number-at-point)
;;;###autoload
(defun list-at-point ()