Return to mbfilter_koi8u.c CVS log

Up to [ELWIX - Embedded LightWeight unIX -] / embedaddon / php / ext / mbstring / libmbfl / filters

Annotation of embedaddon/php/ext/mbstring/libmbfl/filters/mbfilter_koi8u.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 part: Maksym Veremeyenko <verem@m1.tv>
        !            22:  *
        !            23:  * Based on mbfilter_koi8r.c code
        !            24:  *
        !            25:  */
        !            26: 
        !            27: #ifdef HAVE_CONFIG_H
        !            28: #include "config.h"
        !            29: #endif
        !            30: 
        !            31: #include "mbfilter.h"
        !            32: #include "mbfilter_koi8u.h"
        !            33: #include "unicode_table_koi8u.h"
        !            34: 
        !            35: static int mbfl_filt_ident_koi8u(int c, mbfl_identify_filter *filter);
        !            36: 
        !            37: static const char *mbfl_encoding_koi8u_aliases[] = {"KOI8-U", "KOI8U", NULL};
        !            38: 
        !            39: const mbfl_encoding mbfl_encoding_koi8u = {
        !            40:        mbfl_no_encoding_koi8u,
        !            41:        "KOI8-U",
        !            42:        "KOI8-U",
        !            43:        (const char *(*)[])&mbfl_encoding_koi8u_aliases,
        !            44:        NULL,
        !            45:        MBFL_ENCTYPE_SBCS
        !            46: };
        !            47: 
        !            48: const struct mbfl_identify_vtbl vtbl_identify_koi8u = {
        !            49:        mbfl_no_encoding_koi8u,
        !            50:        mbfl_filt_ident_common_ctor,
        !            51:        mbfl_filt_ident_common_dtor,
        !            52:        mbfl_filt_ident_koi8u
        !            53: };
        !            54: 
        !            55: const struct mbfl_convert_vtbl vtbl_wchar_koi8u = {
        !            56:        mbfl_no_encoding_wchar,
        !            57:        mbfl_no_encoding_koi8u,
        !            58:        mbfl_filt_conv_common_ctor,
        !            59:        mbfl_filt_conv_common_dtor,
        !            60:        mbfl_filt_conv_wchar_koi8u,
        !            61:        mbfl_filt_conv_common_flush
        !            62: };
        !            63: 
        !            64: const struct mbfl_convert_vtbl vtbl_koi8u_wchar = {
        !            65:        mbfl_no_encoding_koi8u,
        !            66:        mbfl_no_encoding_wchar,
        !            67:        mbfl_filt_conv_common_ctor,
        !            68:        mbfl_filt_conv_common_dtor,
        !            69:        mbfl_filt_conv_koi8u_wchar,
        !            70:        mbfl_filt_conv_common_flush
        !            71: };
        !            72: 
        !            73: #define CK(statement)  do { if ((statement) < 0) return (-1); } while (0)
        !            74: 
        !            75: /*
        !            76:  * koi8u => wchar
        !            77:  */
        !            78: int
        !            79: mbfl_filt_conv_koi8u_wchar(int c, mbfl_convert_filter *filter)
        !            80: {
        !            81:        int s;
        !            82: 
        !            83:        if (c >= 0 && c < koi8u_ucs_table_min) {
        !            84:                s = c;
        !            85:        } else if (c >= koi8u_ucs_table_min && c < 0x100) {
        !            86:                s = koi8u_ucs_table[c - koi8u_ucs_table_min];
        !            87:                if (s <= 0) {
        !            88:                        s = c;
        !            89:                        s &= MBFL_WCSPLANE_MASK;
        !            90:                        s |= MBFL_WCSPLANE_KOI8U;
        !            91:                }
        !            92:        } else {
        !            93:                s = c;
        !            94:                s &= MBFL_WCSGROUP_MASK;
        !            95:                s |= MBFL_WCSGROUP_THROUGH;
        !            96:        }
        !            97: 
        !            98:        CK((*filter->output_function)(s, filter->data));
        !            99: 
        !           100:        return c;
        !           101: }
        !           102: 
        !           103: /*
        !           104:  * wchar => koi8u
        !           105:  */
        !           106: int
        !           107: mbfl_filt_conv_wchar_koi8u(int c, mbfl_convert_filter *filter)
        !           108: {
        !           109:        int s, n;
        !           110: 
        !           111:        if (c < 0x80) {
        !           112:                s = c;
        !           113:        } else {
        !           114:                s = -1;
        !           115:                n = koi8u_ucs_table_len-1;
        !           116:                while (n >= 0) {
        !           117:                        if (c == koi8u_ucs_table[n]) {
        !           118:                                s = koi8u_ucs_table_min + n;
        !           119:                                break;
        !           120:                        }
        !           121:                        n--;
        !           122:                }
        !           123:                if (s <= 0 && (c & ~MBFL_WCSPLANE_MASK) == MBFL_WCSPLANE_KOI8U) {
        !           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: static int mbfl_filt_ident_koi8u(int c, mbfl_identify_filter *filter)
        !           140: {
        !           141:        if (c >= 0x80 && c < 0xff)
        !           142:                filter->flag = 0;
        !           143:        else
        !           144:                filter->flag = 1; /* not it */
        !           145:        return c;       
        !           146: }