;;; nnheader.el --- header access macros for Gnus and its backends
-
-;; Copyright (C) 1987, 1988, 1989, 1990, 1993, 1994, 1995, 1996,
-;; 1997, 1998, 2000, 2001
-;; Free Software Foundation, Inc.
+;; Copyright (C) 1987,88,89,90,93,94,95,96,97,98 Free Software Foundation, Inc.
;; Author: Masanobu UMEDA <umerin@flab.flab.fujitsu.junet>
;; Lars Magne Ingebrigtsen <larsi@gnus.org>
;;; Commentary:
+;; These macros may look very much like the ones in GNUS 4.1. They
+;; are, in a way, but you should note that the indices they use have
+;; been changed from the internal GNUS format to the NOV format. The
+;; makes it possible to read headers from XOVER much faster.
+;;
+;; The format of a header is now:
+;; [number subject from date id references chars lines xref]
+;;
+;; (That last entry is defined as "misc" in the NOV format, but Gnus
+;; uses it for xrefs.)
+
;;; Code:
(eval-when-compile (require 'cl))
-;; Requiring `gnus-util' at compile time creates a circular
-;; dependency between nnheader.el and gnus-util.el.
- ;(eval-when-compile (require 'gnus-util))
-
(require 'mail-utils)
-(require 'mm-util)
-(eval-and-compile
- (autoload 'gnus-sorted-intersection "gnus-range")
- (autoload 'gnus-intersection "gnus-range")
- (autoload 'gnus-sorted-complement "gnus-range"))
-
-(defcustom gnus-verbose-backends 7
- "Integer that says how verbose the Gnus backends should be.
-The higher the number, the more messages the Gnus backends will flash
-to say what it's doing. At zero, the Gnus backends will be totally
-mute; at five, they will display most important messages; and at ten,
-they will keep on jabbering all the time."
- :group 'gnus-start
- :type 'integer)
-
-(defcustom gnus-nov-is-evil nil
- "If non-nil, Gnus backends will never output headers in the NOV format."
- :group 'gnus-server
- :type 'boolean)
(defvar nnheader-max-head-length 4096
- "*Max length of the head of articles.
-
-Value is an integer, nil, or t. nil means read in chunks of a file
-indefinitely until a complete head is found\; t means always read the
-entire file immediately, disregarding `nnheader-head-chop-length'.
-
-Integer values will in effect be rounded up to the nearest multiple of
-`nnheader-head-chop-length'.")
+ "*Max length of the head of articles.")
(defvar nnheader-head-chop-length 2048
"*Length of each read operation when trying to fetch HEAD headers.")
(defvar nnheader-file-name-translation-alist nil
"*Alist that says how to translate characters in file names.
-For instance, if \":\" is invalid as a file character in file names
+For instance, if \":\" is illegal as a file character in file names
on your system, you could say something like:
\(setq nnheader-file-name-translation-alist '((?: . ?_)))")
(eval-and-compile
- (autoload 'nnmail-message-id "nnmail")
- (autoload 'mail-position-on-field "sendmail")
- (autoload 'message-remove-header "message")
- (autoload 'gnus-point-at-eol "gnus-util")
- (autoload 'gnus-buffer-live-p "gnus-util"))
+ (autoload 'nnmail-message-id "nnmail")
+ (autoload 'mail-position-on-field "sendmail")
+ (autoload 'message-remove-header "message")
+ (autoload 'cancel-function-timers "timers")
+ (autoload 'gnus-point-at-eol "gnus-util")
+ (autoload 'gnus-delete-line "gnus-util")
+ (autoload 'gnus-buffer-live-p "gnus-util")
+ (autoload 'gnus-encode-coding-string "gnus-ems"))
;;; Header access macros.
-;; These macros may look very much like the ones in GNUS 4.1. They
-;; are, in a way, but you should note that the indices they use have
-;; been changed from the internal GNUS format to the NOV format. The
-;; makes it possible to read headers from XOVER much faster.
-;;
-;; The format of a header is now:
-;; [number subject from date id references chars lines xref extra]
-;;
-;; (That next-to-last entry is defined as "misc" in the NOV format,
-;; but Gnus uses it for xrefs.)
-
(defmacro mail-header-number (header)
"Return article number in HEADER."
`(aref ,header 0))
`(aref ,header 8))
(defmacro mail-header-set-xref (header xref)
- "Set article XREF of HEADER to xref."
+ "Set article xref of HEADER to xref."
`(aset ,header 8 ,xref))
-(defmacro mail-header-extra (header)
- "Return the extra headers in HEADER."
- `(aref ,header 9))
-
-(defmacro mail-header-set-extra (header extra)
- "Set the extra headers in HEADER to EXTRA."
- `(aset ,header 9 ',extra))
-
-(defsubst make-mail-header (&optional init)
+(defun make-mail-header (&optional init)
"Create a new mail header structure initialized with INIT."
- (make-vector 10 init))
+ (make-vector 9 init))
-(defsubst make-full-mail-header (&optional number subject from date id
- references chars lines xref
- extra)
+(defun make-full-mail-header (&optional number subject from date id
+ references chars lines xref)
"Create a new mail header structure initialized with the parameters given."
- (vector number subject from date id references chars lines xref extra))
+ (vector number subject from date id references chars lines xref))
;; fake message-ids: generation and detection
(concat "fake+none+" (int-to-string (incf nnheader-fake-message-id))))
(defsubst nnheader-fake-message-id-p (id)
- (save-match-data ; regular message-id's are <.*>
+ (save-match-data ; regular message-id's are <.*>
(string-match "\\`fake\\+none\\+[0-9]+\\'" id)))
;; Parsing headers and NOV lines.
(defsubst nnheader-header-value ()
- (skip-chars-forward " \t")
- (buffer-substring (point) (gnus-point-at-eol)))
+ (buffer-substring (match-end 0) (gnus-point-at-eol)))
(defun nnheader-parse-head (&optional naked)
(let ((case-fold-search t)
;; Subject.
(progn
(goto-char p)
- (if (search-forward "\nsubject:" nil t)
+ (if (search-forward "\nsubject: " nil t)
(nnheader-header-value) "(none)"))
;; From.
(progn
(goto-char p)
- (if (search-forward "\nfrom:" nil t)
+ (if (search-forward "\nfrom: " nil t)
(nnheader-header-value) "(nobody)"))
;; Date.
(progn
(goto-char p)
- (if (search-forward "\ndate:" nil t)
+ (if (search-forward "\ndate: " nil t)
(nnheader-header-value) ""))
;; Message-ID.
(progn
;; References.
(progn
(goto-char p)
- (if (search-forward "\nreferences:" nil t)
+ (if (search-forward "\nreferences: " nil t)
(nnheader-header-value)
;; Get the references from the in-reply-to header if there
;; were no references and the in-reply-to header looks
;; promising.
- (if (and (search-forward "\nin-reply-to:" nil t)
+ (if (and (search-forward "\nin-reply-to: " nil t)
(setq in-reply-to (nnheader-header-value))
- (string-match "<[^\n>]+>" in-reply-to))
+ (string-match "<[^>]+>" in-reply-to))
(let (ref2)
(setq ref (substring in-reply-to (match-beginning 0)
(match-end 0)))
- (while (string-match "<[^\n>]+>"
- in-reply-to (match-end 0))
+ (while (string-match "<[^>]+>" in-reply-to (match-end 0))
(setq ref2 (substring in-reply-to (match-beginning 0)
(match-end 0)))
(when (> (length ref2) (length ref))
(setq ref ref2)))
- ref)
+ ref)
nil)))
;; Chars.
0
;; Xref.
(progn
(goto-char p)
- (and (search-forward "\nxref:" nil t)
- (nnheader-header-value)))
-
- ;; Extra.
- (when nnmail-extra-headers
- (let ((extra nnmail-extra-headers)
- out)
- (while extra
- (goto-char p)
- (when (search-forward
- (concat "\n" (symbol-name (car extra)) ":") nil t)
- (push (cons (car extra) (nnheader-header-value))
- out))
- (pop extra))
- out))))
+ (and (search-forward "\nxref: " nil t)
+ (nnheader-header-value)))))
(when naked
(goto-char (point-min))
(delete-char 1)))))
(defmacro nnheader-nov-read-integer ()
'(prog1
- (if (eq (char-after) ?\t)
+ (if (= (following-char) ?\t)
0
- (let ((num (condition-case nil
- (read (current-buffer))
- (error nil))))
+ (let ((num (ignore-errors (read (current-buffer)))))
(if (numberp num) num 0)))
(or (eobp) (forward-char 1))))
-(defmacro nnheader-nov-parse-extra ()
- '(let (out string)
- (while (not (memq (char-after) '(?\n nil)))
- (setq string (nnheader-nov-field))
- (when (string-match "^\\([^ :]+\\): " string)
- (push (cons (intern (match-string 1 string))
- (substring string (match-end 0)))
- out)))
- out))
-
-(defmacro nnheader-nov-read-message-id ()
- '(let ((id (nnheader-nov-field)))
- (if (string-match "^<[^>]+>$" id)
- id
- (nnheader-generate-fake-message-id))))
+;; (defvar nnheader-none-counter 0)
(defun nnheader-parse-nov ()
(let ((eol (gnus-point-at-eol)))
(nnheader-nov-field) ; subject
(nnheader-nov-field) ; from
(nnheader-nov-field) ; date
- (nnheader-nov-read-message-id) ; id
+ (or (nnheader-nov-field)
+ (nnheader-generate-fake-message-id)) ; id
(nnheader-nov-field) ; refs
(nnheader-nov-read-integer) ; chars
(nnheader-nov-read-integer) ; lines
- (if (eq (char-after) ?\n)
+ (if (= (following-char) ?\n)
nil
- (if (looking-at "Xref: ")
- (goto-char (match-end 0)))
- (nnheader-nov-field)) ; Xref
- (nnheader-nov-parse-extra)))) ; extra
+ (nnheader-nov-field)) ; misc
+ )))
(defun nnheader-insert-nov (header)
(princ (mail-header-number header) (current-buffer))
- (let ((p (point)))
- (insert
- "\t"
- (or (mail-header-subject header) "(none)") "\t"
- (or (mail-header-from header) "(nobody)") "\t"
- (or (mail-header-date header) "") "\t"
- (or (mail-header-id header)
- (nnmail-message-id))
- "\t"
- (or (mail-header-references header) "") "\t")
- (princ (or (mail-header-chars header) 0) (current-buffer))
- (insert "\t")
- (princ (or (mail-header-lines header) 0) (current-buffer))
- (insert "\t")
- (when (mail-header-xref header)
- (insert "Xref: " (mail-header-xref header)))
- (when (or (mail-header-xref header)
- (mail-header-extra header))
- (insert "\t"))
- (when (mail-header-extra header)
- (let ((extra (mail-header-extra header)))
- (while extra
- (insert (symbol-name (caar extra))
- ": " (cdar extra) "\t")
- (pop extra))))
- (insert "\n")
- (backward-char 1)
- (while (search-backward "\n" p t)
- (delete-char 1))
- (forward-line 1)))
-
-(defun nnheader-insert-header (header)
(insert
- "Subject: " (or (mail-header-subject header) "(none)") "\n"
- "From: " (or (mail-header-from header) "(nobody)") "\n"
- "Date: " (or (mail-header-date header) "") "\n"
- "Message-ID: " (or (mail-header-id header) (nnmail-message-id)) "\n"
- "References: " (or (mail-header-references header) "") "\n"
- "Lines: ")
+ "\t"
+ (or (mail-header-subject header) "(none)") "\t"
+ (or (mail-header-from header) "(nobody)") "\t"
+ (or (mail-header-date header) "") "\t"
+ (or (mail-header-id header)
+ (nnmail-message-id))
+ "\t"
+ (or (mail-header-references header) "") "\t")
+ (princ (or (mail-header-chars header) 0) (current-buffer))
+ (insert "\t")
(princ (or (mail-header-lines header) 0) (current-buffer))
- (insert "\n\n"))
+ (insert "\t")
+ (when (mail-header-xref header)
+ (insert "Xref: " (mail-header-xref header) "\t"))
+ (insert "\n"))
(defun nnheader-insert-article-line (article)
(goto-char (point-min))
(setq prev (point))
(while (and (not (numberp (setq num (read cur))))
(not (eobp)))
- (delete-region (progn (beginning-of-line) (point))
- (progn (forward-line 1) (point))))
+ (gnus-delete-line))
(cond ((> num article)
(setq max (point)))
((< num article)
;; Various cruft the backends and Gnus need to communicate.
(defvar nntp-server-buffer nil)
-(defvar nntp-process-response nil)
+(defvar gnus-verbose-backends 7
+ "*A number that says how talkative the Gnus backends should be.")
+(defvar gnus-nov-is-evil nil
+ "If non-nil, Gnus backends will never output headers in the NOV format.")
(defvar news-reply-yank-from nil)
(defvar news-reply-yank-message-id nil)
(unless (gnus-buffer-live-p nntp-server-buffer)
(setq nntp-server-buffer (get-buffer-create " *nntpd*")))
(set-buffer nntp-server-buffer)
- (mm-enable-multibyte)
(erase-buffer)
(kill-all-local-variables)
(setq case-fold-search t) ;Should ignore case.
- (set (make-local-variable 'nntp-process-response) nil)
t))
;;; Various functions the backends use.
nil
(narrow-to-region (point-min) (1- (point)))
(goto-char (point-min))
- (while (looking-at "[a-zA-Z][^ \t]+:.*\n\\([ \t].*\n\\)*\\|From .*\n")
+ (while (looking-at "[A-Z][^ \t]+:.*\n\\([ \t].*\n\\)*\\|From .*\n")
(goto-char (match-end 0)))
(prog1
(eobp)
(defun nnheader-insert-references (references message-id)
"Insert a References header based on REFERENCES and MESSAGE-ID."
(if (and (not references) (not message-id))
- ;; This is invalid, but not all articles have Message-IDs.
- ()
+ () ; This is illegal, but not all articles have Message-IDs.
(mail-position-on-field "References")
(let ((begin (save-excursion (beginning-of-line) (point)))
(fill-column 78)
(defun nnheader-set-temp-buffer (name &optional noerase)
"Set-buffer to an empty (possibly new) buffer called NAME with undo disabled."
(set-buffer (get-buffer-create name))
- (buffer-disable-undo)
+ (buffer-disable-undo (current-buffer))
(unless noerase
(erase-buffer))
(current-buffer))
-(eval-when-compile (defvar jka-compr-compression-info-list))
+(defmacro nnheader-temp-write (file &rest forms)
+ "Create a new buffer, evaluate FORMS there, and write the buffer to FILE.
+Return the value of FORMS.
+If FILE is nil, just evaluate FORMS and don't save anything.
+If FILE is t, return the buffer contents as a string."
+ (let ((temp-file (make-symbol "temp-file"))
+ (temp-buffer (make-symbol "temp-buffer"))
+ (temp-results (make-symbol "temp-results")))
+ `(save-excursion
+ (let* ((,temp-file ,file)
+ (default-major-mode 'fundamental-mode)
+ (,temp-buffer
+ (set-buffer
+ (get-buffer-create
+ (generate-new-buffer-name " *nnheader temp*"))))
+ ,temp-results)
+ (unwind-protect
+ (progn
+ (setq ,temp-results (progn ,@forms))
+ (cond
+ ;; Don't save anything.
+ ((null ,temp-file)
+ ,temp-results)
+ ;; Return the buffer contents.
+ ((eq ,temp-file t)
+ (set-buffer ,temp-buffer)
+ (buffer-string))
+ ;; Save a file.
+ (t
+ (set-buffer ,temp-buffer)
+ ;; Make sure the directory where this file is
+ ;; to be saved exists.
+ (when (not (file-directory-p
+ (file-name-directory ,temp-file)))
+ (make-directory (file-name-directory ,temp-file) t))
+ ;; Save the file.
+ (write-region (point-min) (point-max)
+ ,temp-file nil 'nomesg)
+ ,temp-results)))
+ ;; Kill the buffer.
+ (when (buffer-name ,temp-buffer)
+ (kill-buffer ,temp-buffer)))))))
+
+(put 'nnheader-temp-write 'lisp-indent-function 1)
+(put 'nnheader-temp-write 'edebug-form-spec '(form body))
+
+(defvar jka-compr-compression-info-list)
(defvar nnheader-numerical-files
(if (boundp 'jka-compr-compression-info-list)
(concat "\\([0-9]+\\)\\("
"Regexp that matches numerical full file paths.")
(defsubst nnheader-file-to-number (file)
- "Take a FILE name and return the article number."
+ "Take a file name and return the article number."
(if (string= nnheader-numerical-short-files "^[0-9]+$")
(string-to-int file)
(string-match nnheader-numerical-short-files file)
(string-to-int (match-string 0 file))))
-(defvar nnheader-directory-files-is-safe
- (or (eq system-type 'windows-nt)
- (and (not (featurep 'xemacs))
- (> emacs-major-version 20)))
- "If non-nil, Gnus believes `directory-files' is safe.
-It has been reported numerous times that `directory-files' fails with
-an alarming frequency on NFS mounted file systems. If it is nil,
-`nnheader-directory-files-safe' is used.")
-
(defun nnheader-directory-files-safe (&rest args)
- "Execute `directory-files' twice and returns the longer result."
+ ;; It has been reported numerous times that `directory-files'
+ ;; fails with an alarming frequency on NFS mounted file systems.
+ ;; This function executes that function twice and returns
+ ;; the longest result.
(let ((first (apply 'directory-files args))
(second (apply 'directory-files args)))
(if (> (length first) (length second))
second)))
(defun nnheader-directory-articles (dir)
- "Return a list of all article files in directory DIR."
+ "Return a list of all article files in a directory."
(mapcar 'nnheader-file-to-number
- (if nnheader-directory-files-is-safe
- (directory-files
- dir nil nnheader-numerical-short-files t)
- (nnheader-directory-files-safe
- dir nil nnheader-numerical-short-files t))))
+ (nnheader-directory-files-safe
+ dir nil nnheader-numerical-short-files t)))
(defun nnheader-article-to-file-alist (dir)
"Return an alist of article/file pairs in DIR."
(mapcar (lambda (file) (cons (nnheader-file-to-number file) file))
- (if nnheader-directory-files-is-safe
- (directory-files
- dir nil nnheader-numerical-short-files t)
- (nnheader-directory-files-safe
- dir nil nnheader-numerical-short-files t))))
+ (nnheader-directory-files-safe
+ dir nil nnheader-numerical-short-files t)))
(defun nnheader-fold-continuation-lines ()
"Fold continuation lines in the current buffer."
(if full
;; Do complete translation.
(setq leaf (copy-sequence file)
- path ""
- i (if (and (< 1 (length leaf)) (eq ?: (aref leaf 1)))
- 2 0))
+ path "")
;; We translate -- but only the file name. We leave the directory
;; alone.
- (if (and (featurep 'xemacs)
- (memq system-type '(cygwin32 win32 w32 mswindows windows-nt)))
- ;; This is needed on NT and stuff, because
- ;; file-name-nondirectory is not enough to split
- ;; file names, containing ':', e.g.
- ;; "d:\\Work\\News\\nntp+news.fido7.ru:fido7.ru.gnu.SCORE"
- ;;
- ;; we are trying to correctly split such names:
- ;; "d:file.name" -> "a:" "file.name"
- ;; "aaa:bbb.ccc" -> "" "aaa:bbb.ccc"
- ;; "d:aaa\\bbb:ccc" -> "d:aaa\\" "bbb:ccc"
- ;; etc.
- ;; to translate then only the file name part.
- (progn
- (setq leaf file
- path "")
- (if (string-match "\\(^\\w:\\|[/\\]\\)\\([^/\\]+\\)$" file)
- (setq leaf (substring file (match-beginning 2))
- path (substring file 0 (match-beginning 2)))))
- ;; Emacs DTRT, says andrewi.
+ (if (string-match "/[^/]+\\'" file)
+ ;; This is needed on NT's and stuff.
+ (setq leaf (substring file (1+ (match-beginning 0)))
+ path (substring file 0 (1+ (match-beginning 0))))
+ ;; Fall back on this.
(setq leaf (file-name-nondirectory file)
path (file-name-directory file))))
(setq len (length leaf))
"Get the most recent report from BACKEND."
(condition-case ()
(nnheader-message 5 "%s" (symbol-value (intern (format "%s-status-string"
- backend))))
+ backend))))
(error (nnheader-message 5 ""))))
(defun nnheader-insert (format &rest args)
(apply 'insert format args))
t))
-(defsubst nnheader-replace-chars-in-string (string from to)
- (mm-subst-char-in-string from to string))
-
-(defun nnheader-replace-duplicate-chars-in-string (string from to)
+(defun nnheader-replace-chars-in-string (string from to)
"Replace characters in STRING from FROM to TO."
(let ((string (substring string 0)) ;Copy string.
(len (length string))
- (idx 0) prev i)
+ (idx 0))
;; Replace all occurrences of FROM with TO.
(while (< idx len)
- (setq i (aref string idx))
- (when (and (eq prev from) (= i from))
- (aset string (1- idx) to)
+ (when (= (aref string idx) from)
(aset string idx to))
- (setq prev i)
(setq idx (1+ idx)))
string))
(concat
(let ((dir (file-name-as-directory (expand-file-name dir))))
;; If this directory exists, we use it directly.
- (file-name-as-directory
- (if (file-directory-p (concat dir group))
- (expand-file-name group dir)
- ;; If not, we translate dots into slashes.
- (expand-file-name (mm-encode-coding-string
- (nnheader-replace-chars-in-string group ?. ?/)
- nnheader-pathname-coding-system)
- dir))))
+ (if (file-directory-p (concat dir group))
+ (concat dir group "/")
+ ;; If not, we translate dots into slashes.
+ (concat dir
+ (gnus-encode-coding-string
+ (nnheader-replace-chars-in-string group ?. ?/)
+ nnheader-pathname-coding-system)
+ "/")))
(cond ((null file) "")
((numberp file) (int-to-string file))
(t file))))
(and (listp form) (eq (car form) 'lambda))))
(defun nnheader-concat (dir &rest files)
- "Concat DIR as directory to FILES."
+ "Concat DIR as directory to FILE."
(apply 'concat (file-name-as-directory dir) files))
(defun nnheader-ms-strip-cr ()
(setq path (cdr path))))
result))
-(eval-when-compile
- (defvar ange-ftp-path-format)
- (defvar efs-path-regexp))
+(defvar ange-ftp-path-format)
+(defvar efs-path-regexp)
(defun nnheader-re-read-dir (path)
"Re-read directory PATH if PATH is on a remote system."
(if (and (fboundp 'efs-re-read-dir) (boundp 'efs-path-regexp))
to advanced Emacs features, such as file-name-handlers, format decoding,
find-file-hooks, etc.
This function ensures that none of these modifications will take place."
- (let ((coding-system-for-read nnheader-file-coding-system))
- (mm-insert-file-contents filename visit beg end replace)))
+ (let ((format-alist nil)
+ (auto-mode-alist (nnheader-auto-mode-alist))
+ (default-major-mode 'fundamental-mode)
+ (enable-local-variables nil)
+ (after-insert-file-functions nil)
+ (find-file-hooks nil))
+ (insert-file-contents-as-coding-system
+ nnheader-file-coding-system filename visit beg end replace)))
(defun nnheader-find-file-noselect (&rest args)
(let ((format-alist nil)
- (auto-mode-alist (mm-auto-mode-alist))
+ (auto-mode-alist (nnheader-auto-mode-alist))
(default-major-mode 'fundamental-mode)
(enable-local-variables nil)
(after-insert-file-functions nil)
- (enable-local-eval nil)
- (find-file-hooks nil)
- (coding-system-for-read nnheader-file-coding-system))
- (apply 'find-file-noselect args)))
+ (find-file-hooks nil))
+ (apply 'find-file-noselect-as-coding-system
+ nnheader-file-coding-system args)))
+
+(defun nnheader-auto-mode-alist ()
+ "Return an `auto-mode-alist' with only the .gz (etc) thingies."
+ (let ((alist auto-mode-alist)
+ out)
+ (while alist
+ (when (listp (cdar alist))
+ (push (car alist) out))
+ (pop alist))
+ (nreverse out)))
(defun nnheader-directory-regular-files (dir)
"Return a list of all regular files in DIR."
`(let ((new (generate-new-buffer " *nnheader replace*"))
(cur (current-buffer))
(start (point-min)))
+ (set-buffer new)
+ (buffer-disable-undo (current-buffer))
(set-buffer cur)
(goto-char (point-min))
(while (,(if regexp 're-search-forward 'search-forward)
(set-buffer cur)))
(defun nnheader-replace-string (from to)
- "Do a fast replacement of FROM to TO from point to `point-max'."
+ "Do a fast replacement of FROM to TO from point to point-max."
(nnheader-skeleton-replace from to))
(defun nnheader-replace-regexp (from to)
- "Do a fast regexp replacement of FROM to TO from point to `point-max'."
+ "Do a fast regexp replacement of FROM to TO from point to point-max."
(nnheader-skeleton-replace from to t))
(defun nnheader-strip-cr ()
"Strip all \r's from the current buffer."
(nnheader-skeleton-replace "\r"))
-(defalias 'nnheader-run-at-time 'run-at-time)
-(defalias 'nnheader-cancel-timer 'cancel-timer)
-(defalias 'nnheader-cancel-function-timers 'cancel-function-timers)
-(defalias 'nnheader-string-as-multibyte 'string-as-multibyte)
-
-(when (featurep 'xemacs)
+(fset 'nnheader-run-at-time 'run-at-time)
+(fset 'nnheader-cancel-timer 'cancel-timer)
+(fset 'nnheader-cancel-function-timers 'cancel-function-timers)
+
+(defun nnheader-Y-or-n-p (prompt)
+ "Ask user a \"Y/n\" question. Return t if answer is neither \"n\", \"N\" nor \"C-g\"."
+ (let ((cursor-in-echo-area t)
+ (echo-keystrokes 0)
+ (inhibit-quit t)
+ ans)
+ (let (message-log-max)
+ (while (not (memq ans '(?\ ?N ?Y ?\C-g ?\e ?\n ?\r ?n ?y)))
+ (message "%s(Y/n) " prompt)
+ (setq ans (read-char-exclusive))))
+ (if (memq ans '(?\C-g ?N ?n))
+ (progn
+ (message "%s(Y/n) No" prompt)
+ nil)
+ (message "%s(Y/n) Yes" prompt)
+ t)))
+
+(when (string-match "XEmacs\\|Lucid" emacs-version)
(require 'nnheaderxm))
(run-hooks 'nnheader-load-hook)
projects / elisp / gnus.git- / blobdiff