io.lisp - clic - Clic is an command line interactive client for gopher written in Common LISP (HTM) git clone git://bitreich.org/clic/ git://enlrupgkhuxnvlhsf6lc3fziv5h2hhfrinws65d7roiv6bfj7d652fid.onion/clic/ (DIR) Log (DIR) Files (DIR) Refs (DIR) Tags (DIR) README (DIR) LICENSE --- io.lisp (4612B) --- 1 ;;; -*- Mode: LISP; Syntax: COMMON-LISP; Package: FLEXI-STREAMS; Base: 10 -*- 2 ;;; $Header: /usr/local/cvsrep/flexi-streams/io.lisp,v 1.2 2008/05/20 23:44:45 edi Exp $ 3 4 ;;; Copyright (c) 2005-2008, Dr. Edmund Weitz. All rights reserved. 5 6 ;;; Redistribution and use in source and binary forms, with or without 7 ;;; modification, are permitted provided that the following conditions 8 ;;; are met: 9 10 ;;; * Redistributions of source code must retain the above copyright 11 ;;; notice, this list of conditions and the following disclaimer. 12 13 ;;; * Redistributions in binary form must reproduce the above 14 ;;; copyright notice, this list of conditions and the following 15 ;;; disclaimer in the documentation and/or other materials 16 ;;; provided with the distribution. 17 18 ;;; THIS SOFTWARE IS PROVIDED BY THE AUTHOR 'AS IS' AND ANY EXPRESSED 19 ;;; OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 20 ;;; WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 ;;; ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 22 ;;; DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 ;;; DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE 24 ;;; GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 ;;; INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 26 ;;; WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 27 ;;; NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 28 ;;; SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 30 (in-package :flexi-streams) 31 32 (defmethod reset-input-state ((flexi-io-stream flexi-io-stream)) 33 "This method is used to clear any state associated with previous 34 input before output is attempted on the stream. It can fail if the 35 octet stack is not empty and the stream can't be `rewound'." 36 (declare #.*standard-optimize-settings*) 37 (with-accessors ((last-char-code flexi-stream-last-char-code) 38 (last-octet flexi-stream-last-octet) 39 (octet-stack flexi-stream-octet-stack) 40 (stream flexi-stream-stream)) 41 flexi-io-stream 42 (when octet-stack 43 (unless (maybe-rewind stream (length octet-stack)) 44 (error 'flexi-stream-out-of-sync-error 45 :stream flexi-io-stream)) 46 (setq octet-stack nil)) 47 (setq last-octet nil 48 last-char-code nil))) 49 50 (defmethod stream-write-byte :before ((stream flexi-io-stream) byte) 51 (declare #.*standard-optimize-settings*) 52 (declare (ignore byte)) 53 (reset-input-state stream)) 54 55 (defmethod stream-write-char :before ((stream flexi-io-stream) char) 56 (declare #.*standard-optimize-settings*) 57 (declare (ignore char)) 58 (reset-input-state stream)) 59 60 (defmethod stream-write-sequence :before ((stream flexi-io-stream) sequence start end &key) 61 (declare #.*standard-optimize-settings*) 62 (declare (ignore sequence start end)) 63 (reset-input-state stream)) 64 65 (defmethod stream-clear-output :before ((stream flexi-io-stream)) 66 (declare #.*standard-optimize-settings*) 67 (reset-input-state stream)) 68 69 (defmethod reset-output-state ((flexi-io-stream flexi-io-stream)) 70 "This method is used to clear any state associated with previous 71 output before the stream is used for input." 72 (declare #.*standard-optimize-settings*) 73 (with-accessors ((column flexi-stream-column)) 74 flexi-io-stream 75 (setq column nil))) 76 77 (defmethod stream-read-byte :before ((stream flexi-io-stream)) 78 (declare #.*standard-optimize-settings*) 79 (reset-output-state stream)) 80 81 (defmethod stream-read-char :before ((stream flexi-io-stream)) 82 (declare #.*standard-optimize-settings*) 83 (reset-output-state stream)) 84 85 (defmethod stream-read-sequence :before ((stream flexi-io-stream) sequence start end &key) 86 (declare #.*standard-optimize-settings*) 87 (declare (ignore sequence start end)) 88 (reset-output-state stream)) 89 90 (defmethod stream-unread-char :before ((stream flexi-io-stream) char) 91 (declare #.*standard-optimize-settings*) 92 (declare (ignore char)) 93 (reset-output-state stream)) 94 95 (defmethod unread-byte :before (byte (stream flexi-io-stream)) 96 (declare #.*standard-optimize-settings*) 97 (declare (ignore byte)) 98 (reset-output-state stream)) 99 100 (defmethod stream-clear-input :before ((stream flexi-io-stream)) 101 (declare #.*standard-optimize-settings*) 102 (reset-output-state stream)) 103 104 (defmethod write-byte* :after (byte (stream flexi-io-stream)) 105 "Keep POSITION slot up to date even when performing output." 106 (declare #.*standard-optimize-settings*) 107 (declare (ignore byte)) 108 (with-accessors ((position flexi-stream-position)) 109 stream 110