Annotation of embedaddon/php/ext/mbstring/libmbfl/filters/mbfilter_armscii8.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: Hayk Chamyan <hamshen@gmail.com>
! 22: *
! 23: */
! 24:
! 25: /*
! 26: * "armenian code filter and converter"
! 27: */
! 28:
! 29: #ifdef HAVE_CONFIG_H
! 30: #include "config.h"
! 31: #endif
! 32:
! 33: #include "mbfilter.h"
! 34: #include "mbfilter_armscii8.h"
! 35: #include "unicode_table_armscii8.h"
! 36:
! 37: static int mbfl_filt_ident_armscii8(int c, mbfl_identify_filter *filter);
! 38:
! 39: static const char *mbfl_encoding_armscii8_aliases[] = {"ArmSCII-8", "ArmSCII8", "ARMSCII-8", "ARMSCII8", NULL};
! 40:
! 41: const mbfl_encoding mbfl_encoding_armscii8 = {
! 42: mbfl_no_encoding_armscii8,
! 43: "ArmSCII-8",
! 44: "ArmSCII-8",
! 45: (const char *(*)[])&mbfl_encoding_armscii8_aliases,
! 46: NULL,
! 47: MBFL_ENCTYPE_SBCS
! 48: };
! 49:
! 50: const struct mbfl_identify_vtbl vtbl_identify_armscii8 = {
! 51: mbfl_no_encoding_armscii8,
! 52: mbfl_filt_ident_common_ctor,
! 53: mbfl_filt_ident_common_dtor,
! 54: mbfl_filt_ident_armscii8
! 55: };
! 56:
! 57: const struct mbfl_convert_vtbl vtbl_wchar_armscii8 = {
! 58: mbfl_no_encoding_wchar,
! 59: mbfl_no_encoding_armscii8,
! 60: mbfl_filt_conv_common_ctor,
! 61: mbfl_filt_conv_common_dtor,
! 62: mbfl_filt_conv_wchar_armscii8,
! 63: mbfl_filt_conv_common_flush
! 64: };
! 65:
! 66: const struct mbfl_convert_vtbl vtbl_armscii8_wchar = {
! 67: mbfl_no_encoding_armscii8,
! 68: mbfl_no_encoding_wchar,
! 69: mbfl_filt_conv_common_ctor,
! 70: mbfl_filt_conv_common_dtor,
! 71: mbfl_filt_conv_armscii8_wchar,
! 72: mbfl_filt_conv_common_flush
! 73: };
! 74:
! 75: #define CK(statement) do { if ((statement) < 0) return (-1); } while (0)
! 76:
! 77: /*
! 78: * armscii8 => wchar
! 79: */
! 80: int mbfl_filt_conv_armscii8_wchar(int c, mbfl_convert_filter *filter)
! 81: {
! 82: int s;
! 83:
! 84: if (c >= 0 && c < armscii8_ucs_table_min) {
! 85: s = c;
! 86: } else if (c >= armscii8_ucs_table_min && c < 0x100) {
! 87: s = armscii8_ucs_table[c - armscii8_ucs_table_min];
! 88: if (s <= 0) {
! 89: s = c;
! 90: s &= MBFL_WCSPLANE_MASK;
! 91: s |= MBFL_WCSPLANE_ARMSCII8;
! 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 => armscii8
! 106: */
! 107: int mbfl_filt_conv_wchar_armscii8(int c, mbfl_convert_filter *filter)
! 108: {
! 109:
! 110: int s, n;
! 111:
! 112: if (c >= 0x28 && c < 0x30) {
! 113: s = ucs_armscii8_table[c-0x28];
! 114: } else if (c < armscii8_ucs_table_min) {
! 115: s = c;
! 116: } else {
! 117: s = -1;
! 118: n = armscii8_ucs_table_len-1;
! 119: while (n >= 0) {
! 120: if (c == armscii8_ucs_table[n]) {
! 121: s = armscii8_ucs_table_min + n;
! 122: break;
! 123: }
! 124: n--;
! 125: }
! 126: if (s <= 0 && (c & ~MBFL_WCSPLANE_MASK) == MBFL_WCSPLANE_ARMSCII8) {
! 127: s = c & MBFL_WCSPLANE_MASK;
! 128: }
! 129: }
! 130:
! 131: if (s >= 0) {
! 132: CK((*filter->output_function)(s, filter->data));
! 133: } else {
! 134: if (filter->illegal_mode != MBFL_OUTPUTFILTER_ILLEGAL_MODE_NONE) {
! 135: CK(mbfl_filt_conv_illegal_output(c, filter));
! 136: }
! 137: }
! 138:
! 139: return c;
! 140: }
! 141:
! 142: static int mbfl_filt_ident_armscii8(int c, mbfl_identify_filter *filter)
! 143: {
! 144: if (c >= armscii8_ucs_table_min && c <= 0xff)
! 145: filter->flag = 0;
! 146: else
! 147: filter->flag = 1; /* not it */
! 148: return c;
! 149: }
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