1 ;;; std11.el --- STD 11 functions for GNU Emacs
3 ;; Copyright (C) 1995,1996 Free Software Foundation, Inc.
5 ;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp>
6 ;; Keywords: mail, news, RFC 822, STD 11
7 ;; Version: $Id: std11.el,v 0.33 1996-09-14 08:42:39 morioka Exp $
9 ;; This file is part of MU (Message Utilities).
11 ;; This program is free software; you can redistribute it and/or
12 ;; modify it under the terms of the GNU General Public License as
13 ;; published by the Free Software Foundation; either version 2, or (at
14 ;; your option) any later version.
16 ;; This program is distributed in the hope that it will be useful, but
17 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 ;; General Public License for more details.
21 ;; You should have received a copy of the GNU General Public License
22 ;; along with This program; see the file COPYING. If not, write to
23 ;; the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
24 ;; Boston, MA 02111-1307, USA.
28 (autoload 'buffer-substring-no-properties "emu")
29 (autoload 'member "emu")
35 (defconst std11-field-name-regexp "[!-9;-~]+")
36 (defconst std11-field-head-regexp
37 (concat "^" std11-field-name-regexp ":"))
38 (defconst std11-next-field-head-regexp
39 (concat "\n" std11-field-name-regexp ":"))
41 (defun std11-field-end ()
42 "Move to end of field and return this point. [std11.el]"
43 (if (re-search-forward std11-next-field-head-regexp nil t)
44 (goto-char (match-beginning 0))
45 (if (re-search-forward "^$" nil t)
46 (goto-char (1- (match-beginning 0)))
52 (defun std11-field-body (name &optional boundary)
53 "Return body of field NAME.
54 If BOUNDARY is not nil, it is used as message header separator.
58 (std11-narrow-to-header boundary)
59 (goto-char (point-min))
60 (let ((case-fold-search t))
61 (if (re-search-forward (concat "^" name ":[ \t]*") nil t)
62 (buffer-substring-no-properties (match-end 0) (std11-field-end))
65 (defun std11-find-field-body (field-names &optional boundary)
66 "Return the first found field-body specified by FIELD-NAMES
67 of the message header in current buffer. If BOUNDARY is not nil, it is
68 used as message header separator. [std11.el]"
71 (std11-narrow-to-header boundary)
72 (let ((case-fold-search t)
75 (while (setq field-name (car field-names))
76 (goto-char (point-min))
77 (if (re-search-forward (concat "^" field-name ":[ \t]*") nil t)
79 (buffer-substring-no-properties
80 (match-end 0) (std11-field-end)))
82 (setq field-names (cdr field-names))
85 (defun std11-field-bodies (field-names &optional default-value boundary)
86 "Return list of each field-bodies of FIELD-NAMES of the message header
87 in current buffer. If BOUNDARY is not nil, it is used as message
88 header separator. [std11.el]"
91 (std11-narrow-to-header boundary)
92 (let* ((case-fold-search t)
93 (dest (make-list (length field-names) default-value))
97 (while (setq field-name (car s-rest))
98 (goto-char (point-min))
99 (if (re-search-forward (concat "^" field-name ":[ \t]*") nil t)
101 (buffer-substring-no-properties
102 (match-end 0) (std11-field-end)))
104 (setq s-rest (cdr s-rest)
113 (defun std11-unfold-string (string)
114 "Unfold STRING as message header field. [std11.el]"
116 (while (string-match "\n\\s +" string)
117 (setq dest (concat dest (substring string 0 (match-beginning 0)) " "))
118 (setq string (substring string (match-end 0)))
127 (defun std11-narrow-to-header (&optional boundary)
128 "Narrow to the message header.
129 If BOUNDARY is not nil, it is used as message header separator.
132 (goto-char (point-min))
133 (if (re-search-forward
134 (concat "^\\(" (regexp-quote (or boundary "")) "\\)?$")
140 (defun std11-header-string (regexp &optional boundary)
141 "Return string of message header fields matched by REGEXP.
142 If BOUNDARY is not nil, it is used as message header separator.
144 (let ((case-fold-search t))
147 (std11-narrow-to-header boundary)
148 (goto-char (point-min))
150 (while (re-search-forward std11-field-head-regexp nil t)
152 (buffer-substring (match-beginning 0) (std11-field-end)))
153 (if (string-match regexp field)
154 (setq header (concat header field "\n"))
159 (defun std11-header-string-except (regexp &optional boundary)
160 "Return string of message header fields not matched by REGEXP.
161 If BOUNDARY is not nil, it is used as message header separator.
163 (let ((case-fold-search t))
166 (std11-narrow-to-header boundary)
167 (goto-char (point-min))
169 (while (re-search-forward std11-field-head-regexp nil t)
171 (buffer-substring (match-beginning 0) (std11-field-end)))
172 (if (not (string-match regexp field))
173 (setq header (concat header field "\n"))
178 (defun std11-collect-field-names (&optional boundary)
179 "Return list of all field-names of the message header in current buffer.
180 If BOUNDARY is not nil, it is used as message header separator.
184 (std11-narrow-to-header boundary)
185 (goto-char (point-min))
187 (while (re-search-forward std11-field-head-regexp nil t)
188 (setq name (buffer-substring-no-properties
189 (match-beginning 0)(1- (match-end 0))))
190 (or (member name dest)
191 (setq dest (cons name dest))
200 (defconst std11-non-qtext-char-list '(?\" ?\\ ?\r ?\n))
202 (defun std11-wrap-as-quoted-string (string)
203 "Wrap STRING as RFC 822 quoted-string. [std11.el]"
207 (if (memq chr std11-non-qtext-char-list)
208 (concat "\\" (char-to-string chr))
214 (defun std11-strip-quoted-pair (str)
220 (setq chr (aref str i))
221 (if (or flag (not (eq chr ?\\)))
223 (setq dest (concat dest (char-to-string chr)))
232 (defun std11-strip-quoted-string (string)
233 "Strip quoted-string STRING. [std11.el]"
234 (std11-strip-quoted-pair
235 (let ((max (1- (length string))))
236 (if (and (eq (aref string 0) ?\")
237 (eq (aref string max) ?\")
239 (substring string 1 max)
247 (defun std11-addr-to-string (seq)
248 "Return string from lexical analyzed list SEQ
249 represents addr-spec of RFC 822. [std11.el]"
252 (if (let ((name (car token)))
253 (or (eq name 'spaces)
262 (defun std11-address-string (address)
263 "Return string of address part from parsed ADDRESS of RFC 822.
265 (cond ((eq (car address) 'group)
266 (mapconcat (function std11-address-string)
270 ((eq (car address) 'mailbox)
271 (let ((addr (nth 1 address)))
272 (std11-addr-to-string
273 (if (eq (car addr) 'phrase-route-addr)
279 (defun std11-full-name-string (address)
280 "Return string of full-name part from parsed ADDRESS of RFC 822.
282 (cond ((eq (car address) 'group)
289 ((eq (car address) 'mailbox)
290 (let ((addr (nth 1 address))
291 (comment (nth 2 address))
293 (if (eq (car addr) 'phrase-route-addr)
294 (setq phrase (mapconcat (function
307 (defun std11-parse-address-string (string)
308 "Parse STRING as mail address. [std11.el]"
309 (std11-parse-address (std11-lexical-analyze string))
312 (defun std11-parse-addresses-string (string)
313 "Parse STRING as mail address list. [std11.el]"
314 (std11-parse-addresses (std11-lexical-analyze string))
317 (defun std11-extract-address-components (string)
318 "Extract full name and canonical address from STRING.
319 Returns a list of the form (FULL-NAME CANONICAL-ADDRESS).
320 If no name can be extracted, FULL-NAME will be nil. [std11.el]"
321 (let* ((structure (car (std11-parse-address-string
322 (std11-unfold-string string))))
323 (phrase (std11-full-name-string structure))
324 (address (std11-address-string structure))
326 (list phrase address)
333 (autoload func "std11-parse")
335 '(std11-lexical-analyze
336 std11-parse-address std11-parse-addresses
337 std11-parse-address-string))
343 ;;; std11.el ends here