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115 lines
3.0 KiB
C
115 lines
3.0 KiB
C
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/*
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* "streamable kanji code filter and converter"
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* Copyright (c) 1998-2002 HappySize, Inc. All rights reserved.
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*
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* LICENSE NOTICES
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*
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* This file is part of "streamable kanji code filter and converter",
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* which is distributed under the terms of GNU Lesser General Public
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* License (version 2) as published by the Free Software Foundation.
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*
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* This software is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with "streamable kanji code filter and converter";
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* if not, write to the Free Software Foundation, Inc., 59 Temple Place,
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* Suite 330, Boston, MA 02111-1307 USA
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*
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* The author of this file:
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*
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*/
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/*
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* The source code included in this files was separated from mbfilter.c
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* by Moriyoshi Koizumi <moriyoshi@php.net> on 4 Dec 2002. The file
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* mbfilter.c is included in this package .
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "mbfilter.h"
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#include "mbfilter_ascii.h"
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static int mbfl_filt_ident_ascii(int c, mbfl_identify_filter *filter);
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static const char *mbfl_encoding_ascii_aliases[] = {"ANSI_X3.4-1968", "iso-ir-6", "ANSI_X3.4-1986", "ISO_646.irv:1991", "US-ASCII", "ISO646-US", "us", "IBM367", "cp367", "csASCII", NULL};
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const mbfl_encoding mbfl_encoding_ascii = {
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mbfl_no_encoding_ascii,
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"ASCII",
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"US-ASCII", /* preferred MIME name */
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(const char *(*)[])&mbfl_encoding_ascii_aliases,
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NULL,
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MBFL_ENCTYPE_SBCS
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};
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const struct mbfl_identify_vtbl vtbl_identify_ascii = {
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mbfl_no_encoding_ascii,
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mbfl_filt_ident_common_ctor,
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mbfl_filt_ident_common_dtor,
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mbfl_filt_ident_ascii
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};
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const struct mbfl_convert_vtbl vtbl_ascii_wchar = {
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mbfl_no_encoding_ascii,
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mbfl_no_encoding_wchar,
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mbfl_filt_conv_common_ctor,
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mbfl_filt_conv_common_dtor,
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mbfl_filt_conv_ascii_wchar,
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mbfl_filt_conv_common_flush
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};
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const struct mbfl_convert_vtbl vtbl_wchar_ascii = {
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mbfl_no_encoding_wchar,
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mbfl_no_encoding_ascii,
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mbfl_filt_conv_common_ctor,
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mbfl_filt_conv_common_dtor,
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mbfl_filt_conv_wchar_ascii,
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mbfl_filt_conv_common_flush
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};
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#define CK(statement) do { if ((statement) < 0) return (-1); } while (0)
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/*
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* ASCII => wchar
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*/
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int mbfl_filt_conv_ascii_wchar(int c, mbfl_convert_filter *filter)
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{
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return (*filter->output_function)(c, filter->data);
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}
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/*
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* wchar => ASCII
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*/
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int mbfl_filt_conv_wchar_ascii(int c, mbfl_convert_filter *filter)
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{
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if (c >= 0 && c < 0x80) {
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CK((*filter->output_function)(c, filter->data));
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} else {
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if (filter->illegal_mode != MBFL_OUTPUTFILTER_ILLEGAL_MODE_NONE) {
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CK(mbfl_filt_conv_illegal_output(c, filter));
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}
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}
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return c;
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}
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static int mbfl_filt_ident_ascii(int c, mbfl_identify_filter *filter)
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{
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if (c >= 0x20 && c < 0x80) {
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;
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} else if (c == 0x0d || c == 0x0a || c == 0x09 || c == 0) { /* CR or LF or HTAB or null */
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;
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} else {
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filter->flag = 1;
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}
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return c;
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}
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