;;; ffap.el --- find file (or url) at point
-;; Copyright (C) 1995-1997, 2000-2012 Free Software Foundation, Inc.
+;; Copyright (C) 1995-1997, 2000-2013 Free Software Foundation, Inc.
;; Author: Michelangelo Grigni <mic@mathcs.emory.edu>
;; Maintainer: FSF
;;; Code:
(require 'url-parse)
+(require 'thingatpt)
(define-obsolete-variable-alias 'ffap-version 'emacs-version "23.2")
:group 'ffap)
(defvar ffap-url-regexp
- ;; Could just use `url-nonrelative-link' of w3, if loaded.
- ;; This regexp is not exhaustive, it just matches common cases.
(concat
"\\("
"news\\(post\\)?:\\|mailto:\\|file:" ; no host ok
"\\|"
"\\(ftp\\|https?\\|telnet\\|gopher\\|www\\|wais\\)://" ; needs host
- "\\)." ; require one more character
- )
- "Regexp matching URLs. Use nil to disable URL features in ffap.")
+ "\\)")
+ "Regexp matching the beginning of a URI, for FFAP.
+If the value is nil, disable URL-matching features in ffap.")
(defcustom ffap-foo-at-bar-prefix "mailto"
"Presumed URL prefix type of strings like \"<foo.9z@bar>\".
"Last value returned by `ffap-next-guess'.")
(defvar ffap-string-at-point-region '(1 1)
- "List (BEG END), last region returned by `ffap-string-at-point'.")
+ "List (BEG END), last region returned by the function `ffap-string-at-point'.")
(defun ffap-next-guess (&optional back lim)
"Move point to next file or URL, and return it as a string.
Optional argument WRAP says to try wrapping around if necessary.
Interactively: use a single prefix to search backwards,
double prefix to wrap forward, triple to wrap backwards.
-Actual search is done by `ffap-next-guess'."
+Actual search is done by the function `ffap-next-guess'."
(interactive
(cdr (assq (prefix-numeric-value current-prefix-arg)
'((1) (4 t) (16 nil t) (64 t t)))))
(ffap-ftp-regexp (ffap-host-to-filename mach))
))
-(defvar ffap-newsgroup-regexp "^[[:lower:]]+\\.[-+[:lower:]_0-9.]+$"
- "Strings not matching this fail `ffap-newsgroup-p'.")
-(defvar ffap-newsgroup-heads ; entirely inadequate
- '("alt" "comp" "gnu" "misc" "news" "sci" "soc" "talk")
- "Used by `ffap-newsgroup-p' if gnus is not running.")
-
-(defun ffap-newsgroup-p (string)
- "Return STRING if it looks like a newsgroup name, else nil."
- (and
- (string-match ffap-newsgroup-regexp string)
- (let ((htbs '(gnus-active-hashtb gnus-newsrc-hashtb gnus-killed-hashtb))
- (heads ffap-newsgroup-heads)
- htb ret)
- (while htbs
- (setq htb (car htbs) htbs (cdr htbs))
- (condition-case nil
- (progn
- ;; errs: htb symbol may be unbound, or not a hash-table.
- ;; gnus-gethash is just a macro for intern-soft.
- (and (symbol-value htb)
- (intern-soft string (symbol-value htb))
- (setq ret string htbs nil))
- ;; If we made it this far, gnus is running, so ignore "heads":
- (setq heads nil))
- (error nil)))
- (or ret (not heads)
- (let ((head (string-match "\\`\\([[:lower:]]+\\)\\." string)))
- (and head (setq head (substring string 0 (match-end 1)))
- (member head heads)
- (setq ret string))))
- ;; Is there ever a need to modify string as a newsgroup name?
- ret)))
+(defvaralias 'ffap-newsgroup-regexp 'thing-at-point-newsgroup-regexp)
+(defvaralias 'ffap-newsgroup-heads 'thing-at-point-newsgroup-heads)
+(defalias 'ffap-newsgroup-p 'thing-at-point-newsgroup-p)
(defsubst ffap-url-p (string)
"If STRING looks like an URL, return it (maybe improved), else nil."
;; * no commas (good for latex)
(file "--:\\\\$+<>@-Z_[:alpha:]~*?" "<@" "@>;.,!:")
;; An url, or maybe a email/news message-id:
- (url "--:=&?$+@-Z_[:alpha:]~#,%;*" "^[:alnum:]" ":;.,!?")
+ (url "--:=&?$+@-Z_[:alpha:]~#,%;*()!'" "^[0-9a-zA-Z]" ":;.,!?")
;; Find a string that does *not* contain a colon:
(nocolon "--9$+<>@-Z_[:alpha:]~" "<@" "@>;.,!?")
;; A machine:
"Alist of \(MODE CHARS BEG END\), where MODE is a symbol,
possibly a major-mode name, or one of the symbol
`file', `url', `machine', and `nocolon'.
-`ffap-string-at-point' uses the data fields as follows:
+Function `ffap-string-at-point' uses the data fields as follows:
1. find a maximal string of CHARS around point,
2. strip BEG chars before point from the beginning,
-3. Strip END chars after point from the end.")
+3. strip END chars after point from the end.")
(defvar ffap-string-at-point nil
;; Added at suggestion of RHOGEE (for ff-paths), 7/24/95.
- "Last string returned by `ffap-string-at-point'.")
+ "Last string returned by the function `ffap-string-at-point'.")
(defun ffap-string-at-point (&optional mode)
"Return a string of characters from around point.
syntax parameters in `ffap-string-at-point-mode-alist'.
If MODE is not found, we use `file' instead of MODE.
If the region is active, return a string from the region.
-Sets `ffap-string-at-point' and `ffap-string-at-point-region'."
+Sets the variable `ffap-string-at-point' and the variable
+`ffap-string-at-point-region'."
(let* ((args
(cdr
(or (assq (or mode major-mode) ffap-string-at-point-mode-alist)
(assq 'file ffap-string-at-point-mode-alist))))
(pt (point))
- (str
- (if (and transient-mark-mode mark-active)
- (buffer-substring
- (setcar ffap-string-at-point-region (region-beginning))
- (setcar (cdr ffap-string-at-point-region) (region-end)))
- (buffer-substring
- (save-excursion
- (skip-chars-backward (car args))
- (skip-chars-forward (nth 1 args) pt)
- (setcar ffap-string-at-point-region (point)))
- (save-excursion
- (skip-chars-forward (car args))
- (skip-chars-backward (nth 2 args) pt)
- (setcar (cdr ffap-string-at-point-region) (point)))))))
- (set-text-properties 0 (length str) nil str)
- (setq ffap-string-at-point str)))
+ (beg (if (use-region-p)
+ (region-beginning)
+ (save-excursion
+ (skip-chars-backward (car args))
+ (skip-chars-forward (nth 1 args) pt)
+ (point))))
+ (end (if (use-region-p)
+ (region-end)
+ (save-excursion
+ (skip-chars-forward (car args))
+ (skip-chars-backward (nth 2 args) pt)
+ (point)))))
+ (setq ffap-string-at-point
+ (buffer-substring-no-properties
+ (setcar ffap-string-at-point-region beg)
+ (setcar (cdr ffap-string-at-point-region) end)))))
(defun ffap-string-around ()
;; Sometimes useful to decide how to treat a string.
- "Return string of two chars around last `ffap-string-at-point'.
+ "Return string of two chars around last result of function
+`ffap-string-at-point'.
Assumes the buffer has not changed."
(save-excursion
(format "%c%c"
(defun ffap-copy-string-as-kill (&optional mode)
;; Requested by MCOOK. Useful?
- "Call `ffap-string-at-point', and copy result to `kill-ring'."
+ "Call function `ffap-string-at-point', and copy result to `kill-ring'."
(interactive)
(let ((str (ffap-string-at-point mode)))
(if (equal "" str)
(defun ffap-url-at-point ()
"Return URL from around point if it exists, or nil."
- ;; Could use w3's url-get-url-at-point instead. Both handle "URL:",
- ;; ignore non-relative links, trim punctuation. The other will
- ;; actually look back if point is in whitespace, but I would rather
- ;; ffap be less aggressive in such situations.
(when ffap-url-regexp
(or (and (eq major-mode 'w3-mode) ; In a w3 buffer button?
(w3-view-this-url t))
- ;; Is there a reason not to strip trailing colon?
- (let ((name (ffap-string-at-point 'url)))
- (cond
- ((string-match "^url:" name) (setq name (substring name 4)))
- ((and (string-match "\\`[^:</>@]+@[^:</>@]+[[:alnum:]]\\'" name)
- ;; "foo@bar": could be "mailto" or "news" (a Message-ID).
- ;; Without "<>" it must be "mailto". Otherwise could be
- ;; either, so consult `ffap-foo-at-bar-prefix'.
- (let ((prefix (if (and (equal (ffap-string-around) "<>")
- ;; Expect some odd characters:
- (string-match "[$.0-9].*[$.0-9].*@" name))
- ;; Could be news:
- ffap-foo-at-bar-prefix
- "mailto")))
- (and prefix (setq name (concat prefix ":" name))))))
- ((ffap-newsgroup-p name) (setq name (concat "news:" name)))
- ((and (string-match "\\`[[:alnum:]]+\\'" name) ; <mic> <root> <nobody>
- (equal (ffap-string-around) "<>")
- ;; (ffap-user-p name):
- (not (string-match "~" (expand-file-name (concat "~" name)))))
- (setq name (concat "mailto:" name)))
- ((ffap-url-p name)))))))
+ (let ((thing-at-point-beginning-of-url-regexp ffap-url-regexp)
+ (thing-at-point-default-mail-scheme ffap-foo-at-bar-prefix))
+ (thing-at-point-url-at-point t
+ (if (use-region-p)
+ (cons (region-beginning)
+ (region-end))))))))
(defvar ffap-gopher-regexp
"^.*\\<\\(Type\\|Name\\|Path\\|Host\\|Port\\) *= *\\(.*\\) *$"
:version "22.1")
(defvar ffap-highlight-overlay nil
- "Overlay used by `ffap-highlight'.")
+ "Overlay used by function `ffap-highlight'.")
(defun ffap-highlight (&optional remove)
"If `ffap-highlight' is set, highlight the guess in this buffer.
(call-interactively 'ffap)))
(defun ffap-literally ()
- "Like `ffap' and `find-file-literally'.
+ "Like `ffap' and command `find-file-literally'.
Only intended for interactive use."
(interactive)
(let ((ffap-file-finder 'find-file-literally))
(defun ffap-gnus-hook ()
"Bind `ffap-gnus-next' and `ffap-gnus-menu' to M-l and M-m, resp."
- (set (make-local-variable 'ffap-foo-at-bar-prefix) "news") ; message-id's
+ ;; message-id's
+ (setq-local thing-at-point-default-mail-uri-scheme "news")
;; Note "l", "L", "m", "M" are taken:
(local-set-key "\M-l" 'ffap-gnus-next)
(local-set-key "\M-m" 'ffap-gnus-menu))