;;; nnheader.el --- header access macros for Semi-gnus and its backends
-;; Copyright (C) 198,997,88,89,90,93,94,95,96,97,98 Free Software Foundation, Inc.
+
+;; Copyright (C) 1987, 1988, 1989, 1990, 1993, 1994, 1995, 1996,
+;; 1997, 1998, 2000
+;; 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))
+(eval-when-compile (require 'static))
(require 'mail-utils)
(require 'mime)
(defvar nnheader-file-name-translation-alist nil
"*Alist that says how to translate characters in file names.
-For instance, if \":\" is illegal as a file character in file names
+For instance, if \":\" is invalid as a file character in file names
on your system, you could say something like:
\(setq nnheader-file-name-translation-alist '((?: . ?_)))")
+(defvar nnheader-text-coding-system
+ (if (memq system-type '(windows-nt ms-dos ms-windows))
+ 'raw-text-dos
+ 'raw-text)
+ "Text-safe coding system (For removing ^M).
+This variable is a substitute for `mm-text-coding-system'.")
+
+(defvar nnheader-text-coding-system-for-write nil
+ "Text coding system for write.
+This variable is a substitute for `mm-text-coding-system-for-write'.")
+
(eval-and-compile
- (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 'nnmail-message-id "nnmail")
+ (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-buffer-live-p "gnus-util"))
;;; 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.)
+
+(require 'mmgnus)
+
(defmacro mail-header-number (header)
"Return article number in HEADER."
`(mime-entity-location-internal ,header))
"Set article number of HEADER to NUMBER."
`(mime-entity-set-location-internal ,header ,number))
-(defalias 'mail-header-subject 'mime-entity-decoded-subject-internal)
-(defalias 'mail-header-set-subject 'mime-entity-set-decoded-subject-internal)
+(defalias 'mail-header-subject 'mime-gnus-entity-subject-internal)
+(defalias 'mail-header-set-subject 'mime-gnus-entity-set-subject-internal)
-(defalias 'mail-header-from 'mime-entity-decoded-from-internal)
-(defalias 'mail-header-set-from 'mime-entity-set-decoded-from-internal)
+(defalias 'mail-header-from 'mime-gnus-entity-from-internal)
+(defalias 'mail-header-set-from 'mime-gnus-entity-set-from-internal)
-(defalias 'mail-header-date 'mime-entity-date-internal)
-(defalias 'mail-header-set-date 'mime-entity-set-date-internal)
+(defalias 'mail-header-date 'mime-gnus-entity-date-internal)
+(defalias 'mail-header-set-date 'mime-gnus-entity-set-date-internal)
-(defalias 'mail-header-message-id 'mime-entity-message-id-internal)
-(defalias 'mail-header-id 'mime-entity-message-id-internal)
-(defalias 'mail-header-set-message-id 'mime-entity-set-message-id-internal)
-(defalias 'mail-header-set-id 'mime-entity-set-message-id-internal)
+(defalias 'mail-header-message-id 'mime-gnus-entity-id-internal)
+(defalias 'mail-header-id 'mime-gnus-entity-id-internal)
+(defalias 'mail-header-set-message-id 'mime-gnus-entity-set-id-internal)
+(defalias 'mail-header-set-id 'mime-gnus-entity-set-id-internal)
-(defalias 'mail-header-references 'mime-entity-references-internal)
-(defalias 'mail-header-set-references 'mime-entity-set-references-internal)
+(defalias 'mail-header-references 'mime-gnus-entity-references-internal)
+(defalias 'mail-header-set-references
+ 'mime-gnus-entity-set-references-internal)
-(defalias 'mail-header-chars 'mime-entity-chars-internal)
-(defalias 'mail-header-set-chars 'mime-entity-set-chars-internal)
+(defalias 'mail-header-chars 'mime-gnus-entity-chars-internal)
+(defalias 'mail-header-set-chars 'mime-gnus-entity-set-chars-internal)
-(defalias 'mail-header-lines 'mime-entity-lines-internal)
-(defalias 'mail-header-set-lines 'mime-entity-set-lines-internal)
+(defalias 'mail-header-lines 'mime-gnus-entity-lines-internal)
+(defalias 'mail-header-set-lines 'mime-gnus-entity-set-lines-internal)
-(defalias 'mail-header-xref 'mime-entity-xref-internal)
-(defalias 'mail-header-set-xref 'mime-entity-set-xref-internal)
+(defalias 'mail-header-xref 'mime-gnus-entity-xref-internal)
+(defalias 'mail-header-set-xref 'mime-gnus-entity-set-xref-internal)
(defalias 'nnheader-decode-subject
(mime-find-field-decoder 'Subject 'nov))
(defalias 'nnheader-decode-from
(mime-find-field-decoder 'From 'nov))
-(defalias 'mail-header-extra 'ignore)
-(defalias 'mail-header-set-extra 'ignore)
+(defalias 'mail-header-extra 'mime-gnus-entity-extra-internal)
+(defalias 'mail-header-set-extra 'mime-gnus-entity-set-extra-internal)
-(defsubst nnheader-decode-field-body (field-body field-name
- &optional mode max-column)
+(defun nnheader-decode-field-body (field-body field-name
+ &optional mode max-column)
(mime-decode-field-body field-body
- (if (stringp field-name)
- (intern (capitalize field-name))
- field-name)
- mode max-column))
-
-(defsubst make-full-mail-header
- (&optional number subject from date id references chars lines xref extra)
+ (if (stringp field-name)
+ (intern (capitalize field-name))
+ field-name)
+ mode max-column))
+
+(defsubst make-full-mail-header (&optional number subject from date id
+ references chars lines xref
+ extra)
"Create a new mail header structure initialized with the parameters given."
- (make-mime-entity-internal
- 'gnus number
- nil
- nil nil nil
- (if subject
- (nnheader-decode-subject subject)
- )
- (if from
- (nnheader-decode-from from)
- )
- date id references
- chars lines xref
- (list (cons 'Subject subject)
- (cons 'From from))
- nil nil nil nil nil nil
-;; extra
- ))
+ (luna-make-entity (mm-expand-class-name 'gnus)
+ :location number
+ :subject (if subject
+ (nnheader-decode-subject subject))
+ :from (if from
+ (nnheader-decode-from from))
+ :date date
+ :id id
+ :references references
+ :chars chars
+ :lines lines
+ :xref xref
+ :original-header (list (cons 'Subject subject)
+ (cons 'From from))
+ :extra extra))
(defsubst make-full-mail-header-from-decoded-header
(&optional number subject from date id references chars lines xref extra)
"Create a new mail header structure initialized with the parameters given."
- (make-mime-entity-internal
- 'gnus number
- nil
- nil nil nil
- subject
- from
- date id references
- chars lines xref
- nil
- nil nil nil nil nil nil
-;; extra
- ))
-
-(defun make-mail-header (&optional init)
+ (luna-make-entity (mm-expand-class-name 'gnus)
+ :location number
+ :subject subject
+ :from from
+ :date date
+ :id id
+ :references references
+ :chars chars
+ :lines lines
+ :xref xref
+ :extra extra))
+
+(defsubst make-mail-header (&optional init)
"Create a new mail header structure initialized with INIT."
(make-full-mail-header init init init init init
init init init init init))
;; Parsing headers and NOV lines.
(defsubst nnheader-header-value ()
- (buffer-substring (match-end 0) (gnus-point-at-eol)))
+ (let ((pt (point)))
+ (prog1
+ (buffer-substring (match-end 0) (std11-field-end))
+ (goto-char pt))))
(defun nnheader-parse-head (&optional naked)
(let ((case-fold-search t)
;; From.
(progn
(goto-char p)
- (if (search-forward "\nfrom: " nil t)
+ (if (or (search-forward "\nfrom: " nil t)
+ (search-forward "\nfrom:" nil t))
(nnheader-header-value) "(nobody)"))
;; Date.
(progn
;; promising.
(if (and (search-forward "\nin-reply-to: " nil t)
(setq in-reply-to (nnheader-header-value))
- (string-match "<[^>]+>" in-reply-to))
+ (string-match "<[^\n>]+>" in-reply-to))
(let (ref2)
(setq ref (substring in-reply-to (match-beginning 0)
(match-end 0)))
- (while (string-match "<[^>]+>" in-reply-to (match-end 0))
+ (while (string-match "<[^\n>]+>"
+ in-reply-to (match-end 0))
(setq ref2 (substring in-reply-to (match-beginning 0)
(match-end 0)))
(when (> (length ref2) (length ref))
(goto-char p)
(and (search-forward "\nxref: " nil t)
(nnheader-header-value)))
-
+
;; Extra.
(when nnmail-extra-headers
(let ((extra nnmail-extra-headers)
'(prog1
(if (eq (char-after) ?\t)
0
- (let ((num (ignore-errors (read (current-buffer)))))
+ (let ((num (condition-case nil
+ (read (current-buffer))
+ (error nil))))
(if (numberp num) num 0)))
- (or (eobp) (forward-char 1))))
+ (unless (eobp)
+ (search-forward "\t" eol 'move))))
(defmacro nnheader-nov-parse-extra ()
'(let (out string)
out)))
out))
+(defmacro nnheader-nov-read-message-id ()
+ '(let ((id (nnheader-nov-field)))
+ (if (string-match "^<[^>]+>$" id)
+ id
+ (nnheader-generate-fake-message-id))))
+
(defun nnheader-parse-nov ()
(let ((eol (gnus-point-at-eol)))
(make-full-mail-header
(nnheader-nov-field) ; subject
(nnheader-nov-field) ; from
(nnheader-nov-field) ; date
- (or (nnheader-nov-field)
- (nnheader-generate-fake-message-id)) ; id
+ (nnheader-nov-read-message-id) ; id
(nnheader-nov-field) ; refs
(nnheader-nov-read-integer) ; chars
(nnheader-nov-read-integer) ; lines
(if (eq (char-after) ?\n)
nil
- (nnheader-nov-field)) ; misc
+ (if (looking-at "Xref: ")
+ (goto-char (match-end 0)))
+ (nnheader-nov-field)) ; Xref
(nnheader-nov-parse-extra)))) ; extra
(defun nnheader-insert-nov (header)
(princ (mail-header-number header) (current-buffer))
+ (let ((p (point)))
+ (insert
+ "\t"
+ (or (mime-entity-fetch-field header 'Subject) "(none)") "\t"
+ (or (mime-entity-fetch-field header 'From) "(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
- "\t"
- (or (mime-fetch-field 'Subject header) "(none)") "\t"
- (or (mime-fetch-field '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")
+ "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: ")
(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"))
+ (insert "\n\n"))
(defun nnheader-insert-article-line (article)
(goto-char (point-min))
(beginning-of-line)
(eq num article)))
+(defun nnheader-retrieve-headers-from-directory* (articles
+ directory dependencies
+ &optional
+ fetch-old force-new large
+ backend)
+ (with-temp-buffer
+ (let* ((file nil)
+ (number (length articles))
+ (count 0)
+ (file-name-coding-system 'binary)
+ (pathname-coding-system 'binary)
+ (case-fold-search t)
+ (cur (current-buffer))
+ article
+ headers header id end ref in-reply-to lines chars ctype)
+ ;; We don't support fetching by Message-ID.
+ (if (stringp (car articles))
+ 'headers
+ (while articles
+ (when (and (file-exists-p
+ (setq file (expand-file-name
+ (int-to-string
+ (setq article (pop articles)))
+ directory)))
+ (not (file-directory-p file)))
+ (erase-buffer)
+ (nnheader-insert-head file)
+ (save-restriction
+ (std11-narrow-to-header)
+ (setq
+ header
+ (make-full-mail-header
+ ;; Number.
+ article
+ ;; Subject.
+ (or (std11-fetch-field "Subject")
+ "(none)")
+ ;; From.
+ (or (std11-fetch-field "From")
+ "(nobody)")
+ ;; Date.
+ (or (std11-fetch-field "Date")
+ "")
+ ;; Message-ID.
+ (progn
+ (goto-char (point-min))
+ (setq id (if (re-search-forward
+ "^Message-ID: *\\(<[^\n\t> ]+>\\)" nil t)
+ ;; We do it this way to make sure the Message-ID
+ ;; is (somewhat) syntactically valid.
+ (buffer-substring (match-beginning 1)
+ (match-end 1))
+ ;; If there was no message-id, we just fake one
+ ;; to make subsequent routines simpler.
+ (nnheader-generate-fake-message-id))))
+ ;; References.
+ (progn
+ (goto-char (point-min))
+ (if (search-forward "\nReferences: " nil t)
+ (progn
+ (setq end (point))
+ (prog1
+ (buffer-substring (match-end 0) (std11-field-end))
+ (setq ref
+ (buffer-substring
+ (progn
+ ;; (end-of-line)
+ (search-backward ">" end t)
+ (1+ (point)))
+ (progn
+ (search-backward "<" end t)
+ (point))))))
+ ;; 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)
+ (setq in-reply-to
+ (buffer-substring (match-end 0)
+ (std11-field-end)))
+ (string-match "<[^>]+>" in-reply-to))
+ (let (ref2)
+ (setq ref (substring in-reply-to (match-beginning 0)
+ (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)
+ (setq ref nil))))
+ ;; Chars.
+ (progn
+ (goto-char (point-min))
+ (if (search-forward "\nChars: " nil t)
+ (if (numberp (setq chars (ignore-errors (read cur))))
+ chars 0)
+ 0))
+ ;; Lines.
+ (progn
+ (goto-char (point-min))
+ (if (search-forward "\nLines: " nil t)
+ (if (numberp (setq lines (ignore-errors (read cur))))
+ lines 0)
+ 0))
+ ;; Xref.
+ (std11-fetch-field "Xref")
+ ))
+ (goto-char (point-min))
+ (if (setq ctype (std11-fetch-field "Content-Type"))
+ (mime-entity-set-content-type-internal
+ header (mime-parse-Content-Type ctype)))
+ )
+ (when (setq header
+ (gnus-dependencies-add-header
+ header dependencies force-new))
+ (push header headers))
+ )
+ (setq count (1+ count))
+
+ (and large
+ (zerop (% count 20))
+ (nnheader-message 5 "%s: Receiving headers... %d%%"
+ backend
+ (/ (* count 100) number))))
+
+ (when large
+ (nnheader-message 5 "%s: Receiving headers...done" backend))
+
+ headers))))
+
+(defun nnheader-retrieve-headers-from-directory (articles
+ directory dependencies
+ &optional
+ fetch-old force-new large
+ backend)
+ (cons 'header
+ (nreverse (nnheader-retrieve-headers-from-directory*
+ articles directory dependencies
+ fetch-old force-new large backend))))
+
+(defun nnheader-get-newsgroup-headers-xover* (sequence
+ &optional
+ force-new dependencies
+ group)
+ "Parse the news overview data in the server buffer, and return a
+list of headers that match SEQUENCE (see `nntp-retrieve-headers')."
+ ;; Get the Xref when the users reads the articles since most/some
+ ;; NNTP servers do not include Xrefs when using XOVER.
+ ;; (setq gnus-article-internal-prepare-hook '(gnus-article-get-xrefs))
+ (let ((cur nntp-server-buffer)
+ number headers header)
+ (save-excursion
+ (set-buffer nntp-server-buffer)
+ ;; Allow the user to mangle the headers before parsing them.
+ (gnus-run-hooks 'gnus-parse-headers-hook)
+ (goto-char (point-min))
+ (while (not (eobp))
+ (condition-case ()
+ (while (and sequence (not (eobp)))
+ (setq number (read cur))
+ (while (and sequence
+ (< (car sequence) number))
+ (setq sequence (cdr sequence)))
+ (and sequence
+ (eq number (car sequence))
+ (progn
+ (setq sequence (cdr sequence))
+ (setq header (inline
+ (gnus-nov-parse-line
+ number dependencies force-new))))
+ (push header headers))
+ (forward-line 1))
+ (error
+ (gnus-error 4 "Strange nov line (%d)"
+ (count-lines (point-min) (point)))))
+ (forward-line 1))
+ ;; A common bug in inn is that if you have posted an article and
+ ;; then retrieves the active file, it will answer correctly --
+ ;; the new article is included. However, a NOV entry for the
+ ;; article may not have been generated yet, so this may fail.
+ ;; We work around this problem by retrieving the last few
+ ;; headers using HEAD.
+ headers)))
+
;; Various cruft the backends and Gnus need to communicate.
(defvar nntp-server-buffer nil)
(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 illegal, but not all articles have Message-IDs.
+ ;; This is invalid, but not all articles have Message-IDs.
+ ()
(mail-position-on-field "References")
(let ((begin (save-excursion (beginning-of-line) (point)))
(fill-column 78)
(erase-buffer))
(current-buffer))
-(defvar jka-compr-compression-info-list)
+(eval-when-compile (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 nil
+ "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))
second)))
(defun nnheader-directory-articles (dir)
- "Return a list of all article files in a directory."
+ "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."
(if full
;; Do complete translation.
(setq leaf (copy-sequence file)
- path "")
+ path ""
+ i (if (and (< 1 (length leaf)) (eq ?: (aref leaf 1)))
+ 2 0))
;; We translate -- but only the file name. We leave the directory
;; alone.
- (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.
+ (if (and (featurep 'xemacs)
+ (memq system-type '(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.
(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))
-(defun nnheader-replace-chars-in-string (string from to)
+(static-if (fboundp 'subst-char-in-string)
+ (defsubst nnheader-replace-chars-in-string (string from to)
+ (subst-char-in-string from to string))
+ (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))
+ ;; Replace all occurrences of FROM with TO.
+ (while (< idx len)
+ (when (= (aref string idx) from)
+ (aset string idx to))
+ (setq idx (1+ idx)))
+ string)))
+
+(defun nnheader-replace-duplicate-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))
+ (idx 0) prev i)
;; Replace all occurrences of FROM with TO.
(while (< idx len)
- (when (= (aref string idx) from)
+ (setq i (aref string idx))
+ (when (and (eq prev from) (= i from))
+ (aset string (1- idx) to)
(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.
- (if (file-directory-p (concat dir group))
- (concat dir group "/")
- ;; If not, we translate dots into slashes.
- (concat dir
- (encode-coding-string
- (nnheader-replace-chars-in-string group ?. ?/)
- nnheader-pathname-coding-system)
- "/")))
+ (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 (encode-coding-string
+ (nnheader-replace-chars-in-string group ?. ?/)
+ nnheader-pathname-coding-system)
+ dir))))
(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 FILE."
+ "Concat DIR as directory to FILES."
(apply 'concat (file-name-as-directory dir) files))
(defun nnheader-ms-strip-cr ()
(default-major-mode 'fundamental-mode)
(enable-local-variables nil)
(after-insert-file-functions nil)
+ (enable-local-eval nil)
(find-file-hooks nil))
(insert-file-contents-as-coding-system
nnheader-file-coding-system filename visit beg end replace)))
(default-major-mode 'fundamental-mode)
(enable-local-variables nil)
(after-insert-file-functions nil)
+ (enable-local-eval nil)
(find-file-hooks nil))
(apply 'find-file-noselect-as-coding-system
nnheader-file-coding-system args)))
(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"))
-(fset 'nnheader-run-at-time 'run-at-time)
-(fset 'nnheader-cancel-timer 'cancel-timer)
-(fset 'nnheader-cancel-function-timers 'cancel-function-timers)
+(defalias 'nnheader-run-at-time 'run-at-time)
+(defalias 'nnheader-cancel-timer 'cancel-timer)
+(defalias '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\"."
(message "%s(Y/n) Yes" prompt)
t)))
-(when (string-match "XEmacs\\|Lucid" emacs-version)
+(when (featurep 'xemacs)
(require 'nnheaderxm))
(run-hooks 'nnheader-load-hook)