Annotation of embedaddon/php/ext/mbstring/libmbfl/filters/mbfilter_byte2.c, revision 1.1
1.1 ! misho 1: /*
! 2: * "streamable kanji code filter and converter"
! 3: * Copyright (c) 1998-2002 HappySize, Inc. All rights reserved.
! 4: *
! 5: * LICENSE NOTICES
! 6: *
! 7: * This file is part of "streamable kanji code filter and converter",
! 8: * which is distributed under the terms of GNU Lesser General Public
! 9: * License (version 2) as published by the Free Software Foundation.
! 10: *
! 11: * This software is distributed in the hope that it will be useful,
! 12: * but WITHOUT ANY WARRANTY; without even the implied warranty of
! 13: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
! 14: * GNU Lesser General Public License for more details.
! 15: *
! 16: * You should have received a copy of the GNU Lesser General Public
! 17: * License along with "streamable kanji code filter and converter";
! 18: * if not, write to the Free Software Foundation, Inc., 59 Temple Place,
! 19: * Suite 330, Boston, MA 02111-1307 USA
! 20: *
! 21: * The author of this file:
! 22: *
! 23: */
! 24: /*
! 25: * The source code included in this files was separated from mbfilter.c
! 26: * by Moriyoshi Koizumi <moriyoshi@php.net> on 4 Dec 2002. The file
! 27: * mbfilter.c is included in this package .
! 28: *
! 29: */
! 30:
! 31: #ifdef HAVE_CONFIG_H
! 32: #include "config.h"
! 33: #endif
! 34:
! 35: #include "mbfilter.h"
! 36: #include "mbfilter_byte2.h"
! 37:
! 38: const mbfl_encoding mbfl_encoding_byte2be = {
! 39: mbfl_no_encoding_byte2be,
! 40: "byte2be",
! 41: NULL,
! 42: NULL,
! 43: NULL,
! 44: MBFL_ENCTYPE_SBCS
! 45: };
! 46:
! 47: const mbfl_encoding mbfl_encoding_byte2le = {
! 48: mbfl_no_encoding_byte2le,
! 49: "byte2le",
! 50: NULL,
! 51: NULL,
! 52: NULL,
! 53: MBFL_ENCTYPE_SBCS
! 54: };
! 55:
! 56: const struct mbfl_convert_vtbl vtbl_byte2be_wchar = {
! 57: mbfl_no_encoding_byte2be,
! 58: mbfl_no_encoding_wchar,
! 59: mbfl_filt_conv_common_ctor,
! 60: mbfl_filt_conv_common_dtor,
! 61: mbfl_filt_conv_byte2be_wchar,
! 62: mbfl_filt_conv_common_flush
! 63: };
! 64:
! 65: const struct mbfl_convert_vtbl vtbl_wchar_byte2be = {
! 66: mbfl_no_encoding_wchar,
! 67: mbfl_no_encoding_byte2be,
! 68: mbfl_filt_conv_common_ctor,
! 69: mbfl_filt_conv_common_dtor,
! 70: mbfl_filt_conv_wchar_byte2be,
! 71: mbfl_filt_conv_common_flush };
! 72:
! 73: const struct mbfl_convert_vtbl vtbl_byte2le_wchar = {
! 74: mbfl_no_encoding_byte2le,
! 75: mbfl_no_encoding_wchar,
! 76: mbfl_filt_conv_common_ctor,
! 77: mbfl_filt_conv_common_dtor,
! 78: mbfl_filt_conv_byte2le_wchar,
! 79: mbfl_filt_conv_common_flush };
! 80:
! 81: const struct mbfl_convert_vtbl vtbl_wchar_byte2le = {
! 82: mbfl_no_encoding_wchar,
! 83: mbfl_no_encoding_byte2le,
! 84: mbfl_filt_conv_common_ctor,
! 85: mbfl_filt_conv_common_dtor,
! 86: mbfl_filt_conv_wchar_byte2le,
! 87: mbfl_filt_conv_common_flush };
! 88:
! 89: #define CK(statement) do { if ((statement) < 0) return (-1); } while (0)
! 90:
! 91: int mbfl_filt_conv_byte2be_wchar(int c, mbfl_convert_filter *filter)
! 92: {
! 93: int n;
! 94:
! 95: if (filter->status == 0) {
! 96: filter->status = 1;
! 97: n = (c & 0xff) << 8;
! 98: filter->cache = n;
! 99: } else {
! 100: filter->status = 0;
! 101: n = (c & 0xff) | filter->cache;
! 102: CK((*filter->output_function)(n, filter->data));
! 103: }
! 104: return c;
! 105: }
! 106:
! 107: int mbfl_filt_conv_wchar_byte2be(int c, mbfl_convert_filter *filter)
! 108: {
! 109: CK((*filter->output_function)((c >> 8) & 0xff, filter->data));
! 110: CK((*filter->output_function)(c & 0xff, filter->data));
! 111: return c;
! 112: }
! 113:
! 114: int mbfl_filt_conv_byte2le_wchar(int c, mbfl_convert_filter *filter)
! 115: {
! 116: int n;
! 117:
! 118: if (filter->status == 0) {
! 119: filter->status = 1;
! 120: n = c & 0xff;
! 121: filter->cache = n;
! 122: } else {
! 123: filter->status = 0;
! 124: n = ((c & 0xff) << 8) | filter->cache;
! 125: CK((*filter->output_function)(n, filter->data));
! 126: }
! 127: return c;
! 128: }
! 129:
! 130: int mbfl_filt_conv_wchar_byte2le(int c, mbfl_convert_filter *filter)
! 131: {
! 132: CK((*filter->output_function)(c & 0xff, filter->data));
! 133: CK((*filter->output_function)((c >> 8) & 0xff, filter->data));
! 134: return c;
! 135: }
! 136:
! 137:
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