summaryrefslogtreecommitdiff
path: root/scripts/read-rfc822
diff options
context:
space:
mode:
Diffstat (limited to 'scripts/read-rfc822')
-rwxr-xr-xscripts/read-rfc822133
1 files changed, 0 insertions, 133 deletions
diff --git a/scripts/read-rfc822 b/scripts/read-rfc822
deleted file mode 100755
index 660f0feb9..000000000
--- a/scripts/read-rfc822
+++ /dev/null
@@ -1,133 +0,0 @@
-#!/bin/sh
-# aside from this initial boilerplate, this is actually -*- scheme -*- code
-main='(module-ref (resolve-module '\''(scripts read-rfc822)) '\'main')'
-exec ${GUILE-guile} -l $0 -c "(apply $main (cdr (command-line)))" "$@"
-!#
-;;; read-rfc822 --- Validate RFC822 file by displaying it to stdout
-
-;; Copyright (C) 2002 Free Software Foundation, Inc.
-;;
-;; This program is free software; you can redistribute it and/or
-;; modify it under the terms of the GNU General Public License as
-;; published by the Free Software Foundation; either version 2, or
-;; (at your option) any later version.
-;;
-;; This program is distributed in the hope that it will be useful,
-;; but WITHOUT ANY WARRANTY; without even the implied warranty of
-;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-;; General Public License for more details.
-;;
-;; You should have received a copy of the GNU General Public License
-;; along with this software; see the file COPYING. If not, write to
-;; the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
-;; Boston, MA 02111-1307 USA
-
-;;; Author: Thien-Thi Nguyen <ttn@gnu.org>
-
-;;; Commentary:
-
-;; Usage: read-rfc822 FILE
-;;
-;; Read FILE, assumed to be in RFC822 format, and display it to stdout.
-;; This is not very interesting, admittedly.
-;;
-;; For Scheme programming, this module exports two procs:
-;; (read-rfc822 . args) ; only first arg used
-;; (read-rfc822-silently port)
-;;
-;; Parse FILE (a string) or PORT, respectively, and return a query proc that
-;; takes a symbol COMP, and returns the message component COMP. Supported
-;; values for COMP (and the associated query return values) are:
-;; from -- #f (reserved for future mbox support)
-;; headers -- alist of (HEADER-SYMBOL . "VALUE-STRING") pairs, in order
-;; body -- rest of the mail message, a string
-;; body-lines -- rest of the mail message, as a list of lines
-;; Any other query results in a "bad component" error.
-;;
-;; TODO: Add "-m" option (mbox support).
-
-;;; Code:
-
-(define-module (scripts read-rfc822)
- :use-module (ice-9 regex)
- :use-module (ice-9 rdelim)
- :autoload (srfi srfi-13) (string-join)
- :export (read-rfc822 read-rfc822-silently))
-
-(define from-line-rx (make-regexp "^From "))
-(define header-name-rx (make-regexp "^([^:]+):[ \t]*"))
-(define header-cont-rx (make-regexp "^[ \t]+"))
-
-(define option #f) ; for future "-m"
-
-(define (drain-message port)
- (let loop ((line (read-line port)) (acc '()))
- (cond ((eof-object? line)
- (reverse acc))
- ((and option (regexp-exec from-line-rx line))
- (for-each (lambda (c)
- (unread-char c port))
- (cons #\newline
- (reverse (string->list line))))
- (reverse acc))
- (else
- (loop (read-line port) (cons line acc))))))
-
-(define (parse-message port)
- (let* ((from (and option
- (match:suffix (regexp-exec from-line-rx
- (read-line port)))))
- (body-lines #f)
- (body #f)
- (headers '())
- (add-header! (lambda (reversed-hlines)
- (let* ((hlines (reverse reversed-hlines))
- (first (car hlines))
- (m (regexp-exec header-name-rx first))
- (name (string->symbol (match:substring m 1)))
- (data (string-join
- (cons (substring first (match:end m))
- (cdr hlines))
- " ")))
- (set! headers (acons name data headers))))))
- ;; "From " is only one line
- (let loop ((line (read-line port)) (current-header #f))
- (cond ((string-null? line)
- (and current-header (add-header! current-header))
- (set! body-lines (drain-message port)))
- ((regexp-exec header-cont-rx line)
- => (lambda (m)
- (loop (cdr lines)
- (cons (match:suffix m) current-header))))
- (else
- (and current-header (add-header! current-header))
- (loop (read-line port) (list line)))))
- (set! headers (reverse headers))
- (lambda (component)
- (case component
- ((from) from)
- ((body-lines) body-lines)
- ((headers) headers)
- ((body) (or body
- (begin (set! body (string-join body-lines "\n" 'suffix))
- body)))
- (else (error "bad component:" component))))))
-
-(define (read-rfc822-silently port)
- (parse-message port))
-
-(define (display-rfc822 parse)
- (cond ((parse 'from) => (lambda (from) (format #t "From ~A\n" from))))
- (for-each (lambda (header)
- (format #t "~A: ~A\n" (car header) (cdr header)))
- (parse 'headers))
- (format #t "\n~A" (parse 'body)))
-
-(define (read-rfc822 . args)
- (let ((parse (read-rfc822-silently (open-file (car args) OPEN_READ))))
- (display-rfc822 parse))
- #t)
-
-(define main read-rfc822)
-
-;;; read-rfc822 ends here