(autoload 'buffer-substring-no-properties "emu")
(autoload 'member "emu")
-(eval-when-compile
- (provide 'std11)
- (require 'std11-parse))
-
;;; @ field
;;;
(point)
)
+(defsubst std11-fetch-field (name)
+ "Return the value of the header field NAME.
+The buffer is expected to be narrowed to just the headers of the message."
+ (save-excursion
+ (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-field-body (name &optional boundary)
- "Return body of field NAME.
-If BOUNDARY is not nil, it is used as message header separator.
-\[std11.el]"
+ "Return the value of the header field NAME.
+If BOUNDARY is not nil, it is used as message header separator."
(save-excursion
(save-restriction
(std11-narrow-to-header boundary)
- (goto-char (point-min))
- (let ((case-fold-search t))
- (if (re-search-forward (concat "^" name ":[ \t]*") nil t)
- (buffer-substring-no-properties (match-end 0) (std11-field-end))
- )))))
+ (std11-fetch-field name)
+ )))
(defun std11-find-field-body (field-names &optional boundary)
"Return the first found field-body specified by FIELD-NAMES
string)))
+;;; @ lexical analyze
+;;;
+
+(defconst std11-space-chars " \t\n")
+(defconst std11-spaces-regexp (` (, (concat "[" std11-space-chars "]+"))))
+(defconst std11-special-char-list '(?\] ?\[
+ ?\( ?\) ?< ?> ?@
+ ?, ?\; ?: ?\\ ?\"
+ ?.))
+(defconst std11-atom-regexp
+ (` (, (concat "^[^" std11-special-char-list std11-space-chars "]+"))))
+
+(defun std11-analyze-spaces (string)
+ (if (and (string-match std11-spaces-regexp string)
+ (= (match-beginning 0) 0))
+ (let ((end (match-end 0)))
+ (cons (cons 'spaces (substring string 0 end))
+ (substring string end)
+ ))))
+
+(defun std11-analyze-special (str)
+ (if (and (> (length str) 0)
+ (memq (aref str 0) std11-special-char-list))
+ (cons (cons 'specials (substring str 0 1))
+ (substring str 1)
+ )))
+
+(defun std11-analyze-atom (str)
+ (if (string-match std11-atom-regexp str)
+ (let ((end (match-end 0)))
+ (cons (cons 'atom (substring str 0 end))
+ (substring str end)
+ ))))
+
+(defun std11-check-enclosure (str open close &optional recursive from)
+ (let ((len (length str))
+ (i (or from 0))
+ )
+ (if (and (> len i)
+ (eq (aref str i) open))
+ (let (p chr)
+ (setq i (1+ i))
+ (catch 'tag
+ (while (< i len)
+ (setq chr (aref str i))
+ (cond ((eq chr ?\\)
+ (setq i (1+ i))
+ (if (>= i len)
+ (throw 'tag nil)
+ )
+ (setq i (1+ i))
+ )
+ ((eq chr close)
+ (throw 'tag (1+ i))
+ )
+ ((eq chr open)
+ (if (and recursive
+ (setq p (std11-check-enclosure
+ str open close recursive i))
+ )
+ (setq i p)
+ (throw 'tag nil)
+ ))
+ (t
+ (setq i (1+ i))
+ ))
+ ))))))
+
+(defun std11-analyze-quoted-string (str)
+ (let ((p (std11-check-enclosure str ?\" ?\")))
+ (if p
+ (cons (cons 'quoted-string (substring str 1 (1- p)))
+ (substring str p))
+ )))
+
+(defun std11-analyze-domain-literal (str)
+ (let ((p (std11-check-enclosure str ?\[ ?\])))
+ (if p
+ (cons (cons 'domain-literal (substring str 1 (1- p)))
+ (substring str p))
+ )))
+
+(defun std11-analyze-comment (str)
+ (let ((p (std11-check-enclosure str ?\( ?\) t)))
+ (if p
+ (cons (cons 'comment (substring str 1 (1- p)))
+ (substring str p))
+ )))
+
+(defun std11-lexical-analyze (str)
+ (let (dest ret)
+ (while (not (string-equal str ""))
+ (setq ret
+ (or (std11-analyze-quoted-string str)
+ (std11-analyze-domain-literal str)
+ (std11-analyze-comment str)
+ (std11-analyze-spaces str)
+ (std11-analyze-special str)
+ (std11-analyze-atom str)
+ '((error) . "")
+ ))
+ (setq dest (cons (car ret) dest))
+ (setq str (cdr ret))
+ )
+ (nreverse dest)
+ ))
+
+
+;;; @ parser
+;;;
+
+(defun std11-ignored-token-p (token)
+ (let ((type (car token)))
+ (or (eq type 'spaces)(eq type 'comment))
+ ))
+
+(defun std11-parse-token (lal)
+ (let (token itl)
+ (while (and lal
+ (progn
+ (setq token (car lal))
+ (std11-ignored-token-p token)
+ ))
+ (setq lal (cdr lal))
+ (setq itl (cons token itl))
+ )
+ (cons (nreverse (cons token itl))
+ (cdr lal))
+ ))
+
+(defun std11-parse-ascii-token (lal)
+ (let (token itl parsed token-value)
+ (while (and lal
+ (setq token (car lal))
+ (or (std11-ignored-token-p token)
+ (if (and (setq token-value (cdr token))
+ (find-non-ascii-charset-string token-value)
+ )
+ (setq token nil)
+ )))
+ (setq lal (cdr lal))
+ (setq itl (cons token itl))
+ )
+ (if (and token
+ (setq parsed (nreverse (cons token itl)))
+ )
+ (cons parsed (cdr lal))
+ )))
+
+(defun std11-parse-token-or-comment (lal)
+ (let (token itl)
+ (while (and lal
+ (progn
+ (setq token (car lal))
+ (eq (car token) 'spaces)
+ ))
+ (setq lal (cdr lal))
+ (setq itl (cons token itl))
+ )
+ (cons (nreverse (cons token itl))
+ (cdr lal))
+ ))
+
+(defun std11-parse-word (lal)
+ (let ((ret (std11-parse-ascii-token lal)))
+ (if ret
+ (let ((elt (car ret))
+ (rest (cdr ret))
+ )
+ (if (or (assq 'atom elt)
+ (assq 'quoted-string elt))
+ (cons (cons 'word elt) rest)
+ )))))
+
+(defun std11-parse-word-or-comment (lal)
+ (let ((ret (std11-parse-token-or-comment lal)))
+ (if ret
+ (let ((elt (car ret))
+ (rest (cdr ret))
+ )
+ (cond ((or (assq 'atom elt)
+ (assq 'quoted-string elt))
+ (cons (cons 'word elt) rest)
+ )
+ ((assq 'comment elt)
+ (cons (cons 'comment-word elt) rest)
+ ))
+ ))))
+
+(defun std11-parse-phrase (lal)
+ (let (ret phrase)
+ (while (setq ret (std11-parse-word-or-comment lal))
+ (setq phrase (append phrase (cdr (car ret))))
+ (setq lal (cdr ret))
+ )
+ (if phrase
+ (cons (cons 'phrase phrase) lal)
+ )))
+
+(defun std11-parse-local-part (lal)
+ (let ((ret (std11-parse-word lal)))
+ (if ret
+ (let ((local-part (cdr (car ret))) dot)
+ (setq lal (cdr ret))
+ (while (and (setq ret (std11-parse-ascii-token lal))
+ (setq dot (car ret))
+ (string-equal (cdr (assq 'specials dot)) ".")
+ (setq ret (std11-parse-word (cdr ret)))
+ (setq local-part
+ (append local-part dot (cdr (car ret)))
+ )
+ (setq lal (cdr ret))
+ ))
+ (cons (cons 'local-part local-part) lal)
+ ))))
+
+(defun std11-parse-sub-domain (lal)
+ (let ((ret (std11-parse-ascii-token lal)))
+ (if ret
+ (let ((sub-domain (car ret)))
+ (if (or (assq 'atom sub-domain)
+ (assq 'domain-literal sub-domain)
+ )
+ (cons (cons 'sub-domain sub-domain)
+ (cdr ret)
+ )
+ )))))
+
+(defun std11-parse-domain (lal)
+ (let ((ret (std11-parse-sub-domain lal)))
+ (if ret
+ (let ((domain (cdr (car ret))) dot)
+ (setq lal (cdr ret))
+ (while (and (setq ret (std11-parse-ascii-token lal))
+ (setq dot (car ret))
+ (string-equal (cdr (assq 'specials dot)) ".")
+ (setq ret (std11-parse-sub-domain (cdr ret)))
+ (setq domain
+ (append domain dot (cdr (car ret)))
+ )
+ (setq lal (cdr ret))
+ ))
+ (cons (cons 'domain domain) lal)
+ ))))
+
+(defun std11-parse-at-domain (lal)
+ (let ((ret (std11-parse-ascii-token lal)) at-sign)
+ (if (and ret
+ (setq at-sign (car ret))
+ (string-equal (cdr (assq 'specials at-sign)) "@")
+ (setq ret (std11-parse-domain (cdr ret)))
+ )
+ (cons (cons 'at-domain (append at-sign (cdr (car ret))))
+ (cdr ret))
+ )))
+
+(defun std11-parse-addr-spec (lal)
+ (let ((ret (std11-parse-local-part lal))
+ addr)
+ (if (and ret
+ (prog1
+ (setq addr (cdr (car ret)))
+ (setq lal (cdr ret))
+ (and (setq ret (std11-parse-at-domain lal))
+ (setq addr (append addr (cdr (car ret))))
+ (setq lal (cdr ret))
+ )))
+ (cons (cons 'addr-spec addr) lal)
+ )))
+
+(defun std11-parse-route (lal)
+ (let ((ret (std11-parse-at-domain lal))
+ route comma colon)
+ (if (and ret
+ (progn
+ (setq route (cdr (car ret)))
+ (setq lal (cdr ret))
+ (while (and (setq ret (std11-parse-ascii-token lal))
+ (setq comma (car ret))
+ (string-equal (cdr (assq 'specials comma)) ",")
+ (setq ret (std11-parse-at-domain (cdr ret)))
+ )
+ (setq route (append route comma (cdr (car ret))))
+ (setq lal (cdr ret))
+ )
+ (and (setq ret (std11-parse-ascii-token lal))
+ (setq colon (car ret))
+ (string-equal (cdr (assq 'specials colon)) ":")
+ (setq route (append route colon))
+ )
+ ))
+ (cons (cons 'route route)
+ (cdr ret)
+ )
+ )))
+
+(defun std11-parse-route-addr (lal)
+ (let ((ret (std11-parse-ascii-token lal))
+ < route addr-spec >)
+ (if (and ret
+ (setq < (car ret))
+ (string-equal (cdr (assq 'specials <)) "<")
+ (setq lal (cdr ret))
+ (progn (and (setq ret (std11-parse-route lal))
+ (setq route (cdr (car ret)))
+ (setq lal (cdr ret))
+ )
+ (setq ret (std11-parse-addr-spec lal))
+ )
+ (setq addr-spec (cdr (car ret)))
+ (setq lal (cdr ret))
+ (setq ret (std11-parse-ascii-token lal))
+ (setq > (car ret))
+ (string-equal (cdr (assq 'specials >)) ">")
+ )
+ (cons (cons 'route-addr (append route addr-spec))
+ (cdr ret)
+ )
+ )))
+
+(defun std11-parse-phrase-route-addr (lal)
+ (let ((ret (std11-parse-phrase lal)) phrase)
+ (if ret
+ (progn
+ (setq phrase (cdr (car ret)))
+ (setq lal (cdr ret))
+ ))
+ (if (setq ret (std11-parse-route-addr lal))
+ (cons (list 'phrase-route-addr
+ phrase
+ (cdr (car ret)))
+ (cdr ret))
+ )))
+
+(defun std11-parse-mailbox (lal)
+ (let ((ret (or (std11-parse-phrase-route-addr lal)
+ (std11-parse-addr-spec lal)))
+ mbox comment)
+ (if (and ret
+ (prog1
+ (setq mbox (car ret))
+ (setq lal (cdr ret))
+ (if (and (setq ret (std11-parse-token-or-comment lal))
+ (setq comment (cdr (assq 'comment (car ret))))
+ )
+ (setq lal (cdr ret))
+ )))
+ (cons (list 'mailbox mbox comment)
+ lal)
+ )))
+
+(defun std11-parse-group (lal)
+ (let ((ret (std11-parse-phrase lal))
+ phrase colon comma mbox semicolon)
+ (if (and ret
+ (setq phrase (cdr (car ret)))
+ (setq lal (cdr ret))
+ (setq ret (std11-parse-ascii-token lal))
+ (setq colon (car ret))
+ (string-equal (cdr (assq 'specials colon)) ":")
+ (setq lal (cdr ret))
+ (progn
+ (and (setq ret (std11-parse-mailbox lal))
+ (setq mbox (list (car ret)))
+ (setq lal (cdr ret))
+ (progn
+ (while (and (setq ret (std11-parse-ascii-token lal))
+ (setq comma (car ret))
+ (string-equal
+ (cdr (assq 'specials comma)) ",")
+ (setq lal (cdr ret))
+ (setq ret (std11-parse-mailbox lal))
+ (setq mbox (cons (car ret) mbox))
+ (setq lal (cdr ret))
+ )
+ )))
+ (and (setq ret (std11-parse-ascii-token lal))
+ (setq semicolon (car ret))
+ (string-equal (cdr (assq 'specials semicolon)) ";")
+ )))
+ (cons (list 'group phrase (nreverse mbox))
+ (cdr ret)
+ )
+ )))
+
+(defun std11-parse-address (lal)
+ (or (std11-parse-group lal)
+ (std11-parse-mailbox lal)
+ ))
+
+(defun std11-parse-addresses (lal)
+ (let ((ret (std11-parse-address lal)))
+ (if ret
+ (let ((dest (list (car ret))))
+ (setq lal (cdr ret))
+ (while (and (setq ret (std11-parse-ascii-token lal))
+ (string-equal (cdr (assq 'specials (car ret))) ",")
+ (setq ret (std11-parse-address (cdr ret)))
+ )
+ (setq dest (cons (car ret) dest))
+ (setq lal (cdr ret))
+ )
+ (nreverse dest)
+ ))))
+
+(defun std11-parse-msg-id (lal)
+ (let ((ret (std11-parse-ascii-token lal))
+ < addr-spec >)
+ (if (and ret
+ (setq < (car ret))
+ (string-equal (cdr (assq 'specials <)) "<")
+ (setq lal (cdr ret))
+ (setq ret (std11-parse-addr-spec lal))
+ (setq addr-spec (car ret))
+ (setq lal (cdr ret))
+ (setq ret (std11-parse-ascii-token lal))
+ (setq > (car ret))
+ (string-equal (cdr (assq 'specials >)) ">")
+ )
+ (cons (cons 'msg-id (cdr addr-spec))
+ (cdr ret))
+ )))
+
+
;;; @ composer
;;;
dest))
-;;; @ parser
+;;; @ parser with lexical analyzer
;;;
(defun std11-parse-address-string (string)
(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
;;;
+(provide 'std11)
+
;;; std11.el ends here
projects / elisp / flim.git / blobdiff