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Annotation of embedaddon/php/ext/mbstring/libmbfl/filters/mbfilter_iso8859_3.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.
        !            27:  * 
        !            28:  */
        !            29: 
        !            30: #ifdef HAVE_CONFIG_H
        !            31: #include "config.h"
        !            32: #endif
        !            33: 
        !            34: #include "mbfilter.h"
        !            35: #include "mbfilter_iso8859_3.h"
        !            36: #include "unicode_table_iso8859_3.h"
        !            37: 
        !            38: static const char *mbfl_encoding_8859_3_aliases[] = {"ISO_8859-3", "latin3", NULL};
        !            39: 
        !            40: const mbfl_encoding mbfl_encoding_8859_3 = {
        !            41:        mbfl_no_encoding_8859_3,
        !            42:        "ISO-8859-3",
        !            43:        "ISO-8859-3",
        !            44:        (const char *(*)[])&mbfl_encoding_8859_3_aliases,
        !            45:        NULL,
        !            46:        MBFL_ENCTYPE_SBCS
        !            47: };
        !            48: 
        !            49: const struct mbfl_identify_vtbl vtbl_identify_8859_3 = {
        !            50:        mbfl_no_encoding_8859_3,
        !            51:        mbfl_filt_ident_common_ctor,
        !            52:        mbfl_filt_ident_common_dtor,
        !            53:        mbfl_filt_ident_true
        !            54: };
        !            55: 
        !            56: const struct mbfl_convert_vtbl vtbl_8859_3_wchar = {
        !            57:        mbfl_no_encoding_8859_3,
        !            58:        mbfl_no_encoding_wchar,
        !            59:        mbfl_filt_conv_common_ctor,
        !            60:        mbfl_filt_conv_common_dtor,
        !            61:        mbfl_filt_conv_8859_3_wchar,
        !            62:        mbfl_filt_conv_common_flush
        !            63: };
        !            64: 
        !            65: const struct mbfl_convert_vtbl vtbl_wchar_8859_3 = {
        !            66:        mbfl_no_encoding_wchar,
        !            67:        mbfl_no_encoding_8859_3,
        !            68:        mbfl_filt_conv_common_ctor,
        !            69:        mbfl_filt_conv_common_dtor,
        !            70:        mbfl_filt_conv_wchar_8859_3,
        !            71:        mbfl_filt_conv_common_flush
        !            72: };
        !            73: 
        !            74: 
        !            75: #define CK(statement)  do { if ((statement) < 0) return (-1); } while (0)
        !            76: 
        !            77: /*
        !            78:  * ISO-8859-3 => wchar
        !            79:  */
        !            80: int mbfl_filt_conv_8859_3_wchar(int c, mbfl_convert_filter *filter)
        !            81: {
        !            82:        int s;
        !            83: 
        !            84:        if (c >= 0 && c < 0xa0) {
        !            85:                s = c;
        !            86:        } else if (c >= 0xa0 && c < 0x100) {
        !            87:                s = iso8859_3_ucs_table[c - 0xa0];
        !            88:                if (s <= 0) {
        !            89:                        s = c;
        !            90:                        s &= MBFL_WCSPLANE_MASK;
        !            91:                        s |= MBFL_WCSPLANE_8859_3;
        !            92:                }
        !            93:        } else {
        !            94:                s = c;
        !            95:                s &= MBFL_WCSGROUP_MASK;
        !            96:                s |= MBFL_WCSGROUP_THROUGH;
        !            97:        }
        !            98: 
        !            99:        CK((*filter->output_function)(s, filter->data));
        !           100: 
        !           101:        return c;
        !           102: }
        !           103: 
        !           104: /*
        !           105:  * wchar => ISO-8859-3
        !           106:  */
        !           107: int mbfl_filt_conv_wchar_8859_3(int c, mbfl_convert_filter *filter)
        !           108: {
        !           109:        int s, n;
        !           110: 
        !           111:        if (c >= 0 && c < 0xa0) {
        !           112:                s = c;
        !           113:        } else {
        !           114:                s = -1;
        !           115:                n = 95;
        !           116:                while (n >= 0) {
        !           117:                        if (c == iso8859_3_ucs_table[n]) {
        !           118:                                s = 0xa0 + n;
        !           119:                                break;
        !           120:                        }
        !           121:                        n--;
        !           122:                }
        !           123:                if (s <= 0 && (c & ~MBFL_WCSPLANE_MASK) == MBFL_WCSPLANE_8859_3) {
        !           124:                        s = c & MBFL_WCSPLANE_MASK;
        !           125:                }
        !           126:        }
        !           127: 
        !           128:        if (s >= 0) {
        !           129:                CK((*filter->output_function)(s, filter->data));
        !           130:        } else {
        !           131:                if (filter->illegal_mode != MBFL_OUTPUTFILTER_ILLEGAL_MODE_NONE) {
        !           132:                        CK(mbfl_filt_conv_illegal_output(c, filter));
        !           133:                }
        !           134:        }
        !           135: 
        !           136:        return c;
        !           137: }
        !           138: 
        !           139: