;;; nnheader.el --- header access macros for Gnus and its backends
;; Copyright (C) 1987, 1988, 1989, 1990, 1993, 1994, 1995, 1996,
-;; 1997, 1998, 2000
+;; 1997, 1998, 2000, 2001
;; Free Software Foundation, Inc.
;; Author: Masanobu UMEDA <umerin@flab.flab.fujitsu.junet>
(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"))
(defvar nnheader-max-head-length 4096
- "*Max length of the head of articles.")
+ "*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'.")
(defvar nnheader-head-chop-length 2048
"*Length of each read operation when trying to fetch HEAD headers.")
(autoload 'mail-position-on-field "sendmail")
(autoload 'message-remove-header "message")
(autoload 'gnus-point-at-eol "gnus-util")
- (autoload 'gnus-delete-line "gnus-util")
+ (autoload 'gnus-delete-line "gnus-util" nil nil 'macro)
(autoload 'gnus-buffer-live-p "gnus-util"))
;;; Header access macros.
(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 ()
- (buffer-substring (match-end 0) (gnus-point-at-eol)))
+ (skip-chars-forward " \t")
+ (buffer-substring (point) (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 (or (search-forward "\nfrom: " nil t)
- (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
+ ;; 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))
(let (ref2)
(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)
+ (and (search-forward "\nxref:" nil t)
(nnheader-header-value)))
;; Extra.
(while extra
(goto-char p)
(when (search-forward
- (concat "\n" (symbol-name (car extra)) ": ") nil t)
+ (concat "\n" (symbol-name (car extra)) ":") nil t)
(push (cons (car extra) (nnheader-header-value))
out))
(pop extra))
(save-excursion
(unless (gnus-buffer-live-p nntp-server-buffer)
(setq nntp-server-buffer (get-buffer-create " *nntpd*")))
- (mm-enable-multibyte)
(set-buffer nntp-server-buffer)
+ (mm-enable-multibyte)
(erase-buffer)
(kill-all-local-variables)
(setq case-fold-search t) ;Should ignore case.
(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)
- ;; 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.
+ "Execute `directory-files' twice and returns the longer result."
(let ((first (apply 'directory-files args))
(second (apply 'directory-files args)))
(if (> (length first) (length second))
(defun nnheader-directory-articles (dir)
"Return a list of all article files in directory DIR."
(mapcar 'nnheader-file-to-number
- (nnheader-directory-files-safe
- dir nil nnheader-numerical-short-files t)))
+ (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))))
(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))
- (nnheader-directory-files-safe
- dir nil nnheader-numerical-short-files t)))
+ (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))))
(defun nnheader-fold-continuation-lines ()
"Fold continuation lines in the current buffer."
path ""
i (if (and (< 1 (length leaf)) (eq ?: (aref leaf 1)))
2 0))
- ;; We translate -- but only the file name. We leave the directory
+ ;; We translate -- but only the file name. We leave the directory
;; alone.
(if (and (featurep 'xemacs)
- (memq system-type '(win32 w32 mswindows windows-nt)))
+ (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"
;; If not, we translate dots into slashes.
(expand-file-name (mm-encode-coding-string
(nnheader-replace-chars-in-string group ?. ?/)
- nnheader-pathname-coding-system)
+ nnheader-pathname-coding-system)
dir))))
(cond ((null file) "")
((numberp file) (int-to-string file))
(setq path (cdr path))))
result))
-(defvar ange-ftp-path-format)
-(defvar efs-path-regexp)
+(eval-when-compile
+ (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))
(auto-mode-alist (mm-auto-mode-alist))
(default-major-mode 'fundamental-mode)
(enable-local-variables nil)
- (after-insert-file-functions nil)
+ (after-insert-file-functions nil)
(enable-local-eval nil)
(find-file-hooks nil)
(coding-system-for-read nnheader-file-coding-system))
(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)
(require 'nnheaderxm))
projects / gnus / blobdiff