X-Git-Url: http://git.chise.org/gitweb/?a=blobdiff_plain;f=mime-parse.el;h=0072ad09d73d5ec77382fd050490d20c843c3b02;hb=2378ca31314f8194e4fe1c3374932ad243c27b11;hp=5fb7dd98df8b31158e545c68b8e67fc500490c99;hpb=12ccfd4e7ec2053e4d54d1e3c4d9f08d0c312d9e;p=elisp%2Fflim.git

diff --git a/mime-parse.el b/mime-parse.el
index 5fb7dd9..0072ad0 100644
--- a/mime-parse.el
+++ b/mime-parse.el
@@ -1,8 +1,9 @@
 ;;; mime-parse.el --- MIME message parser
 
-;; Copyright (C) 1994,1995,1996,1997,1998 Free Software Foundation, Inc.
+;; Copyright (C) 1994,1995,1996,1997,1998,1999 Free Software Foundation, Inc.
 
 ;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp>
+;;         Keiichi Suzuki <keiichi@nanap.org>
 ;; Keywords: parse, MIME, multimedia, mail, news
 
 ;; This file is part of SEMI (Spadework for Emacs MIME Interfaces).
@@ -24,46 +25,145 @@
 
 ;;; Code:
 
-(require 'emu)
-(require 'std11)
 (require 'mime-def)
+(require 'std11)
 
-(eval-when-compile (require 'cl))
+(autoload 'mime-entity-body-buffer "mime")
+(autoload 'mime-entity-body-start-point "mime")
+(autoload 'mime-entity-body-end-point "mime")
 
 
-;;; @ field parser
+;;; @ lexical analyzer
 ;;;
 
-(defconst mime/content-parameter-value-regexp
-  (concat "\\("
-	  std11-quoted-string-regexp
-	  "\\|[^; \t\n]*\\)"))
+(defcustom mime-lexical-analyzer
+  '(std11-analyze-quoted-string
+    std11-analyze-domain-literal
+    std11-analyze-comment
+    std11-analyze-spaces
+    mime-analyze-tspecial
+    mime-analyze-token)
+  "*List of functions to return result of lexical analyze.
+Each function must have two arguments: STRING and START.
+STRING is the target string to be analyzed.
+START is start position of STRING to analyze.
+
+Previous function is preferred to next function.  If a function
+returns nil, next function is used.  Otherwise the return value will
+be the result."
+  :group 'mime
+  :type '(repeat function))
+
+(defun mime-analyze-tspecial (string start)
+  (if (and (> (length string) start)
+	   (memq (aref string start) mime-tspecial-char-list))
+      (cons (cons 'tpecials (substring string start (1+ start)))
+	    (1+ start))
+    ))
+
+(defun mime-analyze-token (string start)
+  (if (and (string-match mime-token-regexp string start)
+	   (= (match-beginning 0) start))
+      (let ((end (match-end 0)))
+	(cons (cons 'mime-token (substring string start end))
+	      ;;(substring string end)
+	      end)
+	)))
 
-(defconst mime::parameter-regexp
-  (concat "^[ \t]*\;[ \t]*\\(" mime-token-regexp "\\)"
-	  "[ \t]*=[ \t]*\\(" mime/content-parameter-value-regexp "\\)"))
 
-(defun mime-parse-parameter (str)
-  (if (string-match mime::parameter-regexp str)
-      (let ((e (match-end 2)))
-	(cons
-	 (cons (downcase (substring str (match-beginning 1) (match-end 1)))
-	       (std11-strip-quoted-string
-		(substring str (match-beginning 2) e))
-	       )
-	 (substring str e)
-	 ))))
+;;; @ field parser
+;;;
 
+(defun mime-parse-parameters-skip-to-next-token (lrl)
+  (while (and lrl
+	      (memq (caar lrl) '(comment spaces)))
+    (setq lrl (cdr lrl))
+    )
+  (if (eq (caar lrl) 'error)
+      nil
+    lrl))
+
+(defun mime-parse-parameters (str)
+  (let* ((lrl (std11-lexical-analyze str mime-lexical-analyzer))
+	 (token (car lrl))
+	 rest name val)
+    (while (and token
+		(eq (car token) 'tpecials)
+		(string= (cdr token) ";")
+		)
+      (if (and (setq lrl (mime-parse-parameters-skip-to-next-token
+			  (cdr lrl)
+			  ))
+	       (setq name (cdar lrl))
+	       (setq lrl (mime-parse-parameters-skip-to-next-token
+			  (cdr lrl)
+			  ))
+	       (string= (cdar lrl) "=")
+	       (setq lrl (mime-parse-parameters-skip-to-next-token
+			  (cdr lrl)
+			  ))
+	       (setq val (if (eq (caar lrl) 'quoted-string)
+			     (std11-strip-quoted-pair (cdar lrl))
+			   (cdar lrl)
+			   )))
+	  (setq lrl (mime-parse-parameters-skip-to-next-token (cdr lrl))
+		token (car lrl)
+		rest (cons val rest)
+		rest (cons name rest)
+		)
+	(setq token nil)))
+    (mime-parse-parameters-from-list rest)))
+
+(defun mime-parse-parameters-from-list (list)
+  (let (rest name val)
+    (while list
+      (let ((name (car list))
+	    (val (cadr list)))
+	(setq list (cddr list))
+	(when (string-match "^\\([^*]+\\)\\(\\*\\([0-9]+\\)\\)?\\(\\*\\)?"
+			    name)
+	  (let ((number (if (match-beginning 3)
+			    (string-to-int (substring name
+						      (match-beginning 3)
+						      (match-end 3)))
+			  0))
+		(encoded (if (match-beginning 4) t nil))
+		(parm (progn
+			(setq name (downcase (substring name
+							(match-beginning 1)
+							(match-end 1))))
+			(or (assoc name rest)
+			    (car (setq rest
+				       (cons (make-mime-parameter name)
+					     rest)))))))
+	    (when (and (eq number 0)
+		       encoded
+		       (string-match "^\\([^']*\\)'\\([^']*\\)'\\(.*\\)" val))
+	      (when (< (match-beginning 1) (match-end 1))
+		(mime-parameter-set-charset
+		 parm
+		 (intern (downcase (substring val
+					      (match-beginning 1)
+					      (match-end 1)
+					      )))))
+	      (when (< (match-beginning 2) (match-end 2))
+		(mime-parameter-set-language
+		 parm
+		 (intern (downcase (substring val
+					      (match-beginning 2)
+					      (match-end 2)
+					      )))))
+	      (setq val (substring val (match-beginning 3)))
+	      )
+	    (mime-parameter-append-raw-value parm number encoded val)))))
+      rest))
 
 ;;; @ Content-Type
 ;;;
 
+;;;###autoload
 (defun mime-parse-Content-Type (string)
-  "Parse STRING as field-body of Content-Type field.
-Return value is
-    (PRIMARY-TYPE SUBTYPE (NAME1 . VALUE1)(NAME2 . VALUE2) ...)
-or nil.  PRIMARY-TYPE and SUBTYPE are symbol and NAME_n and VALUE_n
-are string."
+  "Parse STRING as field-body of Content-Type field."
   (setq string (std11-unfold-string string))
   (if (string-match `,(concat "^\\(" mime-token-regexp
 			      "\\)/\\(" mime-token-regexp "\\)") string)
@@ -73,18 +173,14 @@ are string."
 		       (substring string (match-beginning 2) (match-end 2))))
 	     ret dest)
 	(setq string (substring string (match-end 0)))
-	(while (setq ret (mime-parse-parameter string))
-	  (setq dest (cons (car ret) dest)
-		string (cdr ret))
-	  )
 	(make-mime-content-type (intern type)(intern subtype)
-				(nreverse dest))
-	)))
+				(nreverse (mime-parse-parameters string))
+				))))
 
+;;;###autoload
 (defun mime-read-Content-Type ()
   "Read field-body of Content-Type field from current-buffer,
-and return parsed it.  Format of return value is as same as
-`mime-parse-Content-Type'."
+and return parsed it."
   (let ((str (std11-field-body "Content-Type")))
     (if str
 	(mime-parse-Content-Type str)
@@ -94,24 +190,25 @@ and return parsed it.  Format of return value is as same as
 ;;; @ Content-Disposition
 ;;;
 
-(defconst mime-disposition-type-regexp mime-token-regexp)
+(eval-and-compile
+  (defconst mime-disposition-type-regexp mime-token-regexp)
+  )
 
+;;;###autoload
 (defun mime-parse-Content-Disposition (string)
   "Parse STRING as field-body of Content-Disposition field."
   (setq string (std11-unfold-string string))
-  (if (string-match `,(concat "^" mime-disposition-type-regexp) string)
+  (if (string-match (eval-when-compile
+		      (concat "^" mime-disposition-type-regexp)) string)
       (let* ((e (match-end 0))
 	     (type (downcase (substring string 0 e)))
 	     ret dest)
 	(setq string (substring string e))
-	(while (setq ret (mime-parse-parameter string))
-	  (setq dest (cons (car ret) dest)
-		string (cdr ret))
-	  )
 	(cons (cons 'type (intern type))
-	      (nreverse dest))
+	      (nreverse (mime-parse-parameters string)))
 	)))
 
+;;;###autoload
 (defun mime-read-Content-Disposition ()
   "Read field-body of Content-Disposition field from current-buffer,
 and return parsed it."
@@ -120,33 +217,25 @@ and return parsed it."
 	(mime-parse-Content-Disposition str)
       )))
 
-(defsubst mime-content-disposition-type (content-disposition)
-  "Return disposition-type of CONTENT-DISPOSITION."
-  (cdr (car content-disposition)))
-
-(defsubst mime-content-disposition-parameters (content-disposition)
-  "Return disposition-parameters of CONTENT-DISPOSITION."
-  (cdr content-disposition))
-
-(defsubst mime-content-disposition-parameter (content-disposition parameter)
-  "Return PARAMETER value of CONTENT-DISPOSITION."
-  (cdr (assoc parameter (cdr content-disposition))))
-
-(defsubst mime-content-disposition-filename (content-disposition)
-  "Return filename of CONTENT-DISPOSITION."
-  (mime-content-disposition-parameter content-disposition "filename"))
-
 
 ;;; @ Content-Transfer-Encoding
 ;;;
 
+;;;###autoload
 (defun mime-parse-Content-Transfer-Encoding (string)
   "Parse STRING as field-body of Content-Transfer-Encoding field."
-  (if (string-match "[ \t\n\r]+$" string)
-      (setq string (match-string 0 string))
-    )
-  (downcase string))
-
+  (let ((tokens (std11-lexical-analyze string mime-lexical-analyzer))
+	token)
+    (while (and tokens
+		(setq token (car tokens))
+		(std11-ignored-token-p token))
+      (setq tokens (cdr tokens)))
+    (if token
+	(if (eq (car token) 'mime-token)
+	    (downcase (cdr token))
+	  ))))
+
+;;;###autoload
 (defun mime-read-Content-Transfer-Encoding (&optional default-encoding)
   "Read field-body of Content-Transfer-Encoding field from
 current-buffer, and return it.
@@ -157,181 +246,148 @@ If is is not found, return DEFAULT-ENCODING."
       default-encoding)))
 
 
+;;; @ Content-Id / Message-Id
+;;;
+
+;;;###autoload
+(defun mime-parse-msg-id (tokens)
+  "Parse TOKENS as msg-id of Content-Id or Message-Id field."
+  (car (std11-parse-msg-id tokens)))
+
+;;;###autoload
+(defun mime-uri-parse-cid (string)
+  "Parse STRING as cid URI."
+  (inline
+    (mime-parse-msg-id (cons '(specials . "<")
+			     (nconc
+			      (cdr (cdr (std11-lexical-analyze string)))
+			      '((specials . ">")))))))
+
+
 ;;; @ message parser
 ;;;
 
-(defalias 'mime-entity-point-min 'mime-entity-header-start)
-(defalias 'mime-entity-point-max 'mime-entity-body-end)
-
-(defsubst mime-entity-media-type (entity)
-  (mime-content-type-primary-type (mime-entity-content-type entity)))
-(defsubst mime-entity-media-subtype (entity)
-  (mime-content-type-subtype (mime-entity-content-type entity)))
-(defsubst mime-entity-parameters (entity)
-  (mime-content-type-parameters (mime-entity-content-type entity)))
-
-(defsubst mime-entity-type/subtype (entity-info)
-  (mime-type/subtype-string (mime-entity-media-type entity-info)
-			    (mime-entity-media-subtype entity-info)))
-
-(defun mime-parse-multipart (header-start header-end body-start body-end
-					  content-type content-disposition
-					  encoding node-id)
-  (goto-char (point-min))
-  (let* ((dash-boundary
-	  (concat "--"
-		  (std11-strip-quoted-string
-		   (mime-content-type-parameter content-type "boundary"))))
-	 (delimiter       (concat "\n" (regexp-quote dash-boundary)))
-	 (close-delimiter (concat delimiter "--[ \t]*$"))
-	 (rsep (concat delimiter "[ \t]*\n"))
-	 (dc-ctl
-	  (if (eq (mime-content-type-subtype content-type) 'digest)
-	      (make-mime-content-type 'message 'rfc822)
-	    (make-mime-content-type 'text 'plain)
-	    ))
-	 cb ce ret ncb children (i 0))
-    (save-restriction
-      (goto-char body-end)
-      (narrow-to-region header-end
-			(if (re-search-backward close-delimiter nil t)
-			    (match-beginning 0)
-			  body-end))
-      (goto-char header-end)
-      (re-search-forward rsep nil t)
-      (setq cb (match-end 0))
-      (while (re-search-forward rsep nil t)
-	(setq ce (match-beginning 0))
-	(setq ncb (match-end 0))
-	(save-restriction
-	  (narrow-to-region cb ce)
-	  (setq ret (mime-parse-message dc-ctl "7bit" (cons i node-id)))
-	  )
-	(setq children (cons ret children))
-	(goto-char (setq cb ncb))
-	(setq i (1+ i))
-	)
-      (setq ce (point-max))
+(defun mime-parse-multipart (entity)
+  (with-current-buffer (mime-entity-body-buffer entity)
+    (let* ((representation-type
+	    (mime-entity-representation-type-internal entity))
+	   (content-type (mime-entity-content-type-internal entity))
+	   (dash-boundary
+	    (concat "--"
+		    (mime-content-type-parameter content-type "boundary")))
+	   (delimiter       (concat "\n" (regexp-quote dash-boundary)))
+	   (close-delimiter (concat delimiter "--[ \t]*$"))
+	   (rsep (concat delimiter "[ \t]*\n"))
+	   (dc-ctl
+	    (if (eq (mime-content-type-subtype content-type) 'digest)
+		(make-mime-content-type 'message 'rfc822)
+	      (make-mime-content-type 'text 'plain)
+	      ))
+	   (body-start (mime-entity-body-start-point entity))
+	   (body-end (mime-entity-body-end-point entity)))
       (save-restriction
-	(narrow-to-region cb ce)
-	(setq ret (mime-parse-message dc-ctl "7bit" (cons i node-id)))
-	)
-      (setq children (cons ret children))
-      )
-    (make-mime-entity (current-buffer)
-		      header-start header-end body-start body-end
-		      node-id content-type content-disposition encoding
-		      (nreverse children))
-    ))
-
-(defun mime-parse-message (&optional default-ctl default-encoding node-id)
-  "Parse current-buffer as a MIME message.
-DEFAULT-CTL is used when an entity does not have valid Content-Type
-field.  Its format must be as same as return value of
-mime-{parse|read}-Content-Type."
+	(goto-char body-end)
+	(narrow-to-region body-start
+			  (if (re-search-backward close-delimiter nil t)
+			      (match-beginning 0)
+			    body-end))
+	(goto-char body-start)
+	(if (re-search-forward
+	     (concat "^" (regexp-quote dash-boundary) "[ \t]*\n")
+	     nil t)
+	    (let ((cb (match-end 0))
+		  ce ncb ret children
+		  (node-id (mime-entity-node-id-internal entity))
+		  (i 0))
+	      (while (re-search-forward rsep nil t)
+		(setq ce (match-beginning 0))
+		(setq ncb (match-end 0))
+		(save-restriction
+		  (narrow-to-region cb ce)
+		  (setq ret (mime-parse-message representation-type dc-ctl
+						entity (cons i node-id)))
+		  )
+		(setq children (cons ret children))
+		(goto-char (setq cb ncb))
+		(setq i (1+ i))
+		)
+	      (setq ce (point-max))
+	      (save-restriction
+		(narrow-to-region cb ce)
+		(setq ret (mime-parse-message representation-type dc-ctl
+					      entity (cons i node-id)))
+		)
+	      (setq children (cons ret children))
+	      (mime-entity-set-children-internal entity (nreverse children))
+	      )
+	  (mime-entity-set-content-type-internal
+	   entity (make-mime-content-type 'message 'x-broken))
+	  nil)
+	))))
+
+(defun mime-parse-encapsulated (entity)
+  (mime-entity-set-children-internal
+   entity
+   (with-current-buffer (mime-entity-body-buffer entity)
+     (save-restriction
+       (narrow-to-region (mime-entity-body-start-point entity)
+			 (mime-entity-body-end-point entity))
+       (list (mime-parse-message
+	      (mime-entity-representation-type-internal entity) nil
+	      entity (cons 0 (mime-entity-node-id-internal entity))))
+       ))))
+
+(defun mime-parse-message (representation-type &optional default-ctl 
+					       parent node-id)
   (let ((header-start (point-min))
 	header-end
 	body-start
 	(body-end (point-max))
-	content-type content-disposition encoding
-	primary-type)
+	content-type)
     (goto-char header-start)
     (if (re-search-forward "^$" nil t)
 	(setq header-end (match-end 0)
-	      body-start (1+ header-end))
+	      body-start (if (= header-end body-end)
+			     body-end
+			   (1+ header-end)))
       (setq header-end (point-min)
-	    body-start (point-min))
-      )
+	    body-start (point-min)))
     (save-restriction
       (narrow-to-region header-start header-end)
       (setq content-type (or (let ((str (std11-fetch-field "Content-Type")))
 			       (if str
 				   (mime-parse-Content-Type str)
 				 ))
-			     default-ctl)
-	    content-disposition (let ((str (std11-fetch-field
-					    "Content-Disposition")))
-				  (if str
-				      (mime-parse-Content-Disposition str)
-				    ))
-	    encoding (let ((str (std11-fetch-field
-				 "Content-Transfer-Encoding")))
-		       (if str
-			   (mime-parse-Content-Transfer-Encoding str)
-			 default-encoding))
-	    primary-type (mime-content-type-primary-type content-type))
+			     default-ctl))
       )
-    (cond ((eq primary-type 'multipart)
-	   (mime-parse-multipart header-start header-end
-				 body-start body-end
-				 content-type content-disposition encoding
-				 node-id)
-	   )
-	  ((and (eq primary-type 'message)
-		(memq (mime-content-type-subtype content-type)
-		      '(rfc822 news external-body)
-		      ))
-           (make-mime-entity (current-buffer)
-			     header-start header-end body-start body-end
-			     node-id
-			     content-type content-disposition encoding
-			     (save-restriction
-			       (narrow-to-region body-start body-end)
-			       (list (mime-parse-message
-				      nil nil (cons 0 node-id)))
-			       ))
-	   )
-	  (t 
-           (make-mime-entity (current-buffer)
-			     header-start header-end body-start body-end
-			     node-id
-			     content-type content-disposition encoding nil)
-	   ))
+    (luna-make-entity representation-type
+		      :location (current-buffer)
+		      :content-type content-type
+		      :parent parent
+		      :node-id node-id
+		      :buffer (current-buffer)
+		      :header-start header-start
+		      :header-end header-end
+		      :body-start body-start
+		      :body-end body-end)
     ))
 
 
 ;;; @ for buffer
 ;;;
 
-(defvar mime-message-structure nil
-  "Information about structure of message.
-Please use reference function `mime-entity-SLOT' to get value of SLOT.
-
-Following is a list of slots of the structure:
-
-buffer			buffer includes this entity (buffer).
-node-id			node-id (list of integers)
-header-start		minimum point of header in raw-buffer
-header-end		maximum point of header in raw-buffer
-body-start		minimum point of body in raw-buffer
-body-end		maximum point of body in raw-buffer
-content-type		content-type (content-type)
-content-disposition	content-disposition (content-disposition)
-encoding		Content-Transfer-Encoding (string or nil)
-children		entities included in this entity (list of entity)
-
-If an entity includes other entities in its body, such as multipart or
-message/rfc822, `mime-entity' structures of them are included in
-`children', so the `mime-entity' structure become a tree.")
-(make-variable-buffer-local 'mime-message-structure)
-
-(defun mime-parse-buffer (&optional buffer)
+;;;###autoload
+(defun mime-parse-buffer (&optional buffer representation-type)
   "Parse BUFFER as a MIME message.
 If buffer is omitted, it parses current-buffer."
   (save-excursion
     (if buffer (set-buffer buffer))
-    (setq mime-message-structure (mime-parse-message))
+    (setq mime-message-structure
+	  (mime-parse-message (or representation-type
+				  'mime-buffer-entity) nil))
     ))
 
 
-;;; @ utilities
-;;;
-
-(defsubst mime-root-entity-p (entity)
-  "Return t if ENTITY is root-entity (message)."
-  (null (mime-entity-node-id entity)))
-
-
 ;;; @ end
 ;;;