X-Git-Url: http://git.chise.org/gitweb/?a=blobdiff_plain;ds=sidebyside;f=std11.el;h=117ddc6e8193912eb2e58665225688a4aea0e3fe;hb=3909dec22f3879d4201413ae2fa12f3b53d7aff1;hp=fef8ca0c97e7a1c8fc59fcae990d09f0f515ea9d;hpb=8274b1442ba93f3be93c4aabf76f36f2527e07d1;p=elisp%2Fapel.git

diff --git a/std11.el b/std11.el
index fef8ca0..117ddc6 100644
--- a/std11.el
+++ b/std11.el
@@ -1,12 +1,12 @@
-;;; std11.el --- STD 11 parser for GNU Emacs
+;;; std11.el --- STD 11 functions for GNU Emacs
 
-;; Copyright (C) 1995,1996 Free Software Foundation, Inc.
+;; Copyright (C) 1995,1996,1997 Free Software Foundation, Inc.
 
 ;; Author:   MORIOKA Tomohiko <morioka@jaist.ac.jp>
 ;; Keywords: mail, news, RFC 822, STD 11
-;; Version: $Id: std11.el,v 0.3 1996-08-28 12:41:58 morioka Exp $
+;; Version: $Id: std11.el,v 1.1 1998-02-04 07:24:33 morioka Exp $
 
-;; This file is part of tl (Tiny Library).
+;; This file is part of MU (Message Utilities).
 
 ;; This program is free software; you can redistribute it and/or
 ;; modify it under the terms of the GNU General Public License as
@@ -19,13 +19,14 @@
 ;; General Public License for more details.
 
 ;; You should have received a copy of the GNU General Public License
-;; along with This program; see the file COPYING.  If not, write to
-;; the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+;; along with GNU Emacs; see the file COPYING.  If not, write to the
+;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 ;; Boston, MA 02111-1307, USA.
 
 ;;; Code:
 
-(require 'emu)
+(autoload 'buffer-substring-no-properties "emu")
+(autoload 'member "emu")
 
 
 ;;; @ field
@@ -33,21 +34,12 @@
 
 (defconst std11-field-name-regexp "[!-9;-~]+")
 (defconst std11-field-head-regexp
-  (concat "\\(" std11-field-name-regexp "\\):"))
+  (concat "^" std11-field-name-regexp ":"))
 (defconst std11-next-field-head-regexp
-  (concat "\n" std11-field-head-regexp))
-
-(defun std11-field-body (name &optional boundary)
-  (save-excursion
-    (save-restriction
-      (std11-narrow-to-header)
-      (goto-char (point-min))
-      (let ((case-fold-search t))
-	(if (re-search-forward (concat "^" name ":[ \t]*") nil t)
-	    (buffer-substring-no-properties (match-end 0) (std11-field-end))
-	  )))))
+  (concat "\n" std11-field-name-regexp ":"))
 
 (defun std11-field-end ()
+  "Move to end of field and return this point. [std11.el]"
   (if (re-search-forward std11-next-field-head-regexp nil t)
       (goto-char (match-beginning 0))
     (if (re-search-forward "^$" nil t)
@@ -57,11 +49,101 @@
   (point)
   )
 
+(defun std11-field-body (name &optional boundary)
+  "Return body of field NAME.
+If BOUNDARY is not nil, it is used as message header separator.
+\[std11.el]"
+  (save-excursion
+    (save-restriction
+      (std11-narrow-to-header boundary)
+      (goto-char (point-min))
+      (let ((case-fold-search t))
+	(if (re-search-forward (concat "^" name ":[ \t]*") nil t)
+	    (buffer-substring-no-properties (match-end 0) (std11-field-end))
+	  )))))
+
+(defun std11-find-field-body (field-names &optional boundary)
+  "Return the first found field-body specified by FIELD-NAMES
+of the message header in current buffer. If BOUNDARY is not nil, it is
+used as message header separator. [std11.el]"
+  (save-excursion
+    (save-restriction
+      (std11-narrow-to-header boundary)
+      (let ((case-fold-search t)
+	    field-name)
+	(catch 'tag
+	  (while (setq field-name (car field-names))
+	    (goto-char (point-min))
+	    (if (re-search-forward (concat "^" field-name ":[ \t]*") nil t)
+		(throw 'tag
+		       (buffer-substring-no-properties
+			(match-end 0) (std11-field-end)))
+	      )
+	    (setq field-names (cdr field-names))
+	    ))))))
+
+(defun std11-field-bodies (field-names &optional default-value boundary)
+  "Return list of each field-bodies of FIELD-NAMES of the message header
+in current buffer. If BOUNDARY is not nil, it is used as message
+header separator. [std11.el]"
+  (save-excursion
+    (save-restriction
+      (std11-narrow-to-header boundary)
+      (let* ((case-fold-search t)
+	     (dest (make-list (length field-names) default-value))
+	     (s-rest field-names)
+	     (d-rest dest)
+	     field-name)
+	(while (setq field-name (car s-rest))
+	  (goto-char (point-min))
+	  (if (re-search-forward (concat "^" field-name ":[ \t]*") nil t)
+	      (setcar d-rest
+		      (buffer-substring-no-properties
+		       (match-end 0) (std11-field-end)))
+	    )
+	  (setq s-rest (cdr s-rest)
+		d-rest (cdr d-rest))
+	  )
+	dest))))
+
+
+;;; @ unfolding
+;;;
+
+(defun std11-unfold-string (string)
+  "Unfold STRING as message header field. [std11.el]"
+  (let ((dest ""))
+    (while (string-match "\n\\([ \t]\\)" string)
+      (setq dest (concat dest
+                         (substring string 0 (match-beginning 0))
+                         (match-string 1 string)
+                         ))
+      (setq string (substring string (match-end 0)))
+      )
+    (concat dest string)
+    ))
+
 
 ;;; @ header
 ;;;
 
-(defun std11-header-string (pat &optional boundary)
+(defun std11-narrow-to-header (&optional boundary)
+  "Narrow to the message header.
+If BOUNDARY is not nil, it is used as message header separator.
+\[std11.el]"
+  (narrow-to-region
+   (goto-char (point-min))
+   (if (re-search-forward
+	(concat "^\\(" (regexp-quote (or boundary "")) "\\)?$")
+	nil t)
+       (match-beginning 0)
+     (point-max)
+     )))
+
+(defun std11-header-string (regexp &optional boundary)
+  "Return string of message header fields matched by REGEXP.
+If BOUNDARY is not nil, it is used as message header separator.
+\[std11.el]"
   (let ((case-fold-search t))
     (save-excursion
       (save-restriction
@@ -71,13 +153,16 @@
 	  (while (re-search-forward std11-field-head-regexp nil t)
 	    (setq field
 		  (buffer-substring (match-beginning 0) (std11-field-end)))
-	    (if (string-match pat field)
+	    (if (string-match regexp field)
 		(setq header (concat header field "\n"))
 	      ))
 	  header)
 	))))
 
-(defun std11-header-string-except (pat &optional boundary)
+(defun std11-header-string-except (regexp &optional boundary)
+  "Return string of message header fields not matched by REGEXP.
+If BOUNDARY is not nil, it is used as message header separator.
+\[std11.el]"
   (let ((case-fold-search t))
     (save-excursion
       (save-restriction
@@ -87,26 +172,244 @@
 	  (while (re-search-forward std11-field-head-regexp nil t)
 	    (setq field
 		  (buffer-substring (match-beginning 0) (std11-field-end)))
-	    (if (not (string-match pat field))
+	    (if (not (string-match regexp field))
 		(setq header (concat header field "\n"))
 	      ))
 	  header)
 	))))
 
-(defun std11-narrow-to-header (&optional boundary)
-  (narrow-to-region
-   (goto-char (point-min))
-   (if (re-search-forward
-	(concat "^\\(" (regexp-quote (or boundary "")) "\\)?$")
-	nil t)
-       (match-beginning 0)
-     (point-max)
-     )))
+(defun std11-collect-field-names (&optional boundary)
+  "Return list of all field-names of the message header in current buffer.
+If BOUNDARY is not nil, it is used as message header separator.
+\[std11.el]"
+  (save-excursion
+    (save-restriction
+      (std11-narrow-to-header boundary)
+      (goto-char (point-min))
+      (let (dest name)
+	(while (re-search-forward std11-field-head-regexp nil t)
+	  (setq name (buffer-substring-no-properties
+		      (match-beginning 0)(1- (match-end 0))))
+	  (or (member name dest)
+	      (setq dest (cons name dest))
+	      )
+	  )
+	dest))))
 
 
-;;; @ end
+;;; @ quoted-string
+;;;
+
+(defun std11-wrap-as-quoted-pairs (string specials)
+  (let (dest
+	(i 0)
+	(b 0)
+	(len (length string))
+	)
+    (while (< i len)
+      (let ((chr (aref string i)))
+	(if (memq chr specials)
+	    (setq dest (concat dest (substring string b i) "\\")
+		  b i)
+	  ))
+      (setq i (1+ i))
+      )
+    (concat dest (substring string b))
+    ))
+
+(defconst std11-non-qtext-char-list '(?\" ?\\ ?\r ?\n))
+
+(defun std11-wrap-as-quoted-string (string)
+  "Wrap STRING as RFC 822 quoted-string. [std11.el]"
+  (concat "\""
+	  (std11-wrap-as-quoted-pairs string std11-non-qtext-char-list)
+	  "\""))
+
+(defun std11-strip-quoted-pair (string)
+  "Strip quoted-pairs in STRING. [std11.el]"
+  (let (dest
+	(b 0)
+	(i 0)
+	(len (length string))
+	)
+    (while (< i len)
+      (let ((chr (aref string i)))
+	(if (eq chr ?\\)
+	    (setq dest (concat dest (substring string b i))
+		  b (1+ i)
+		  i (+ i 2))
+	  (setq i (1+ i))
+	  )))
+    (concat dest (substring string b))
+    ))
+
+(defun std11-strip-quoted-string (string)
+  "Strip quoted-string STRING. [std11.el]"
+  (let ((len (length string)))
+    (or (and (>= len 2)
+	     (let ((max (1- len)))
+	       (and (eq (aref string 0) ?\")
+		    (eq (aref string max) ?\")
+		    (std11-strip-quoted-pair (substring string 1 max))
+		    )))
+	string)))
+
+
+;;; @ composer
+;;;
+
+(defun std11-addr-to-string (seq)
+  "Return string from lexical analyzed list SEQ
+represents addr-spec of RFC 822. [std11.el]"
+  (mapconcat (function
+	      (lambda (token)
+		(let ((name (car token)))
+                  (cond
+                   ((eq name 'spaces) "")
+                   ((eq name 'comment) "")
+                   ((eq name 'quoted-string)
+                    (concat "\"" (cdr token) "\""))
+                   (t (cdr token)))
+                  )))
+	     seq "")
+  )
+
+(defun std11-address-string (address)
+  "Return string of address part from parsed ADDRESS of RFC 822.
+\[std11.el]"
+  (cond ((eq (car address) 'group)
+	 (mapconcat (function std11-address-string)
+		    (car (cdr address))
+		    ", ")
+	 )
+	((eq (car address) 'mailbox)
+	 (let ((addr (nth 1 address)))
+	   (std11-addr-to-string
+	    (if (eq (car addr) 'phrase-route-addr)
+		(nth 2 addr)
+	      (cdr addr)
+	      )
+	    )))))
+
+(defun std11-full-name-string (address)
+  "Return string of full-name part from parsed ADDRESS of RFC 822.
+\[std11.el]"
+  (cond ((eq (car address) 'group)
+	 (mapconcat (function
+		     (lambda (token)
+		       (cdr token)
+		       ))
+		    (nth 1 address) "")
+	 )
+	((eq (car address) 'mailbox)
+	 (let ((addr (nth 1 address))
+	       (comment (nth 2 address))
+	       phrase)
+	   (if (eq (car addr) 'phrase-route-addr)
+	       (setq phrase
+		     (mapconcat
+		      (function
+		       (lambda (token)
+			 (let ((type (car token)))
+			   (cond ((eq type 'quoted-string)
+				  (std11-strip-quoted-pair (cdr token))
+				  )
+				 ((eq type 'comment)
+				  (concat
+				   "("
+				   (std11-strip-quoted-pair (cdr token))
+				   ")")
+				  )
+				 (t
+				  (cdr token)
+				  )))))
+		      (nth 1 addr) ""))
+	     )
+	   (cond ((> (length phrase) 0) phrase)
+		 (comment (std11-strip-quoted-pair comment))
+		 )
+	   ))))
+
+(defun std11-msg-id-string (msg-id)
+  "Return string from parsed MSG-ID of RFC 822."
+  (concat "<" (std11-addr-to-string (cdr msg-id)) ">")
+  )
+
+(defun std11-fill-msg-id-list-string (string &optional column)
+  "Fill list of msg-id in STRING, and return the result."
+  (or column
+      (setq column 12))
+  (let ((lal (std11-lexical-analyze string))
+	dest)
+    (let ((ret (std11-parse-msg-id lal)))
+      (if ret
+	  (let* ((str (std11-msg-id-string (car ret)))
+		 (len (length str)))
+	    (setq lal (cdr ret))
+	    (if (> (+ len column) 76)
+		(setq dest (concat dest "\n " str)
+		      column (1+ len))
+	      (setq dest str
+		    column (+ column len))
+	      ))
+	(setq dest (concat dest (cdr (car lal)))
+	      lal (cdr lal))
+	))
+    (while lal
+      (let ((ret (std11-parse-msg-id lal)))
+	(if ret
+	    (let* ((str (std11-msg-id-string (car ret)))
+		   (len (1+ (length str))))
+	      (setq lal (cdr ret))
+	      (if (> (+ len column) 76)
+		  (setq dest (concat dest "\n " str)
+			column len)
+		(setq dest (concat dest " " str)
+		      column (+ column len))
+		))
+	  (setq dest (concat dest (cdr (car lal)))
+		lal (cdr lal))
+	  )))
+    dest))
+
+
+;;; @ parser
 ;;;
 
+(defun std11-parse-address-string (string)
+  "Parse STRING as mail address. [std11.el]"
+  (std11-parse-address (std11-lexical-analyze string))
+  )
+
+(defun std11-parse-addresses-string (string)
+  "Parse STRING as mail address list. [std11.el]"
+  (std11-parse-addresses (std11-lexical-analyze string))
+  )
+
+(defun std11-extract-address-components (string)
+  "Extract full name and canonical address from STRING.
+Returns a list of the form (FULL-NAME CANONICAL-ADDRESS).
+If no name can be extracted, FULL-NAME will be nil. [std11.el]"
+  (let* ((structure (car (std11-parse-address-string
+			  (std11-unfold-string string))))
+         (phrase  (std11-full-name-string structure))
+         (address (std11-address-string structure))
+         )
+    (list phrase address)
+    ))
+
 (provide 'std11)
 
+(mapcar (function
+	 (lambda (func)
+	   (autoload func "std11-parse")
+	   ))
+	'(std11-lexical-analyze
+	  std11-parse-address std11-parse-addresses
+	  std11-parse-address-string))
+
+
+;;; @ end
+;;;
+
 ;;; std11.el ends here