/*
* Copyright (c) 2008-2024 Jonathan Schleifer <js@nil.im>
*
* All rights reserved.
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License version 3.0 only,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* version 3.0 for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* version 3.0 along with this program. If not, see
* <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#import "OFString.h"
#import "common.h"
const OFChar16 _OFCodepage437Table[] OF_VISIBILITY_HIDDEN = {
0x00C7, 0x00FC, 0x00E9, 0x00E2, 0x00E4, 0x00E0, 0x00E5, 0x00E7,
0x00EA, 0x00EB, 0x00E8, 0x00EF, 0x00EE, 0x00EC, 0x00C4, 0x00C5,
0x00C9, 0x00E6, 0x00C6, 0x00F4, 0x00F6, 0x00F2, 0x00FB, 0x00F9,
0x00FF, 0x00D6, 0x00DC, 0x00A2, 0x00A3, 0x00A5, 0x20A7, 0x0192,
0x00E1, 0x00ED, 0x00F3, 0x00FA, 0x00F1, 0x00D1, 0x00AA, 0x00BA,
0x00BF, 0x2310, 0x00AC, 0x00BD, 0x00BC, 0x00A1, 0x00AB, 0x00BB,
0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x2561, 0x2562, 0x2556,
0x2555, 0x2563, 0x2551, 0x2557, 0x255D, 0x255C, 0x255B, 0x2510,
0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x255E, 0x255F,
0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x2567,
0x2568, 0x2564, 0x2565, 0x2559, 0x2558, 0x2552, 0x2553, 0x256B,
0x256A, 0x2518, 0x250C, 0x2588, 0x2584, 0x258C, 0x2590, 0x2580,
0x03B1, 0x00DF, 0x0393, 0x03C0, 0x03A3, 0x03C3, 0x00B5, 0x03C4,
0x03A6, 0x0398, 0x03A9, 0x03B4, 0x221E, 0x03C6, 0x03B5, 0x2229,
0x2261, 0x00B1, 0x2265, 0x2264, 0x2320, 0x2321, 0x00F7, 0x2248,
0x00B0, 0x2219, 0x00B7, 0x221A, 0x207F, 0x00B2, 0x25A0, 0x00A0
};
const size_t _OFCodepage437TableOffset OF_VISIBILITY_HIDDEN =
256 - (sizeof(_OFCodepage437Table) / sizeof(*_OFCodepage437Table));
static const unsigned char page0[] = {
0xFF, 0xAD, 0x9B, 0x9C, 0x00, 0x9D, 0x00, 0x00,
0x00, 0x00, 0xA6, 0xAE, 0xAA, 0x00, 0x00, 0x00,
0xF8, 0xF1, 0xFD, 0x00, 0x00, 0xE6, 0x00, 0xFA,
0x00, 0x00, 0xA7, 0xAF, 0xAC, 0xAB, 0x00, 0xA8,
0x00, 0x00, 0x00, 0x00, 0x8E, 0x8F, 0x92, 0x80,
0x00, 0x90, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0xA5, 0x00, 0x00, 0x00, 0x00, 0x99, 0x00,
0x00, 0x00, 0x00, 0x00, 0x9A, 0x00, 0x00, 0xE1,
0x85, 0xA0, 0x83, 0x00, 0x84, 0x86, 0x91, 0x87,
0x8A, 0x82, 0x88, 0x89, 0x8D, 0xA1, 0x8C, 0x8B,
0x00, 0xA4, 0x95, 0xA2, 0x93, 0x00, 0x94, 0xF6,
0x00, 0x97, 0xA3, 0x96, 0x81, 0x00, 0x00, 0x98
};
static const uint8_t page0Start = 0xA0;
static const unsigned char page1[] = {
0x9F
};
static const uint8_t page1Start = 0x92;
static const unsigned char page3[] = {
0xE2, 0x00, 0x00, 0x00, 0x00, 0xE9, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xE4, 0x00, 0x00, 0xE8, 0x00, 0x00, 0xEA, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE0, 0x00,
0x00, 0xEB, 0xEE, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0xE3, 0x00, 0x00,
0xE5, 0xE7, 0x00, 0xED
};
static const uint8_t page3Start = 0x93;
static const unsigned char page20[] = {
0xFC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x9E
};
static const uint8_t page20Start = 0x7F;
static const unsigned char page22[] = {
0xF9, 0xFB, 0x00, 0x00, 0x00, 0xEC, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xEF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF7,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xF0, 0x00, 0x00, 0xF3, 0xF2
};
static const uint8_t page22Start = 0x19;
static const unsigned char page23[] = {
0xA9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xF4, 0xF5
};
static const uint8_t page23Start = 0x10;
static const unsigned char page25[] = {
0xC4, 0x00, 0xB3, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0xDA, 0x00, 0x00, 0x00,
0xBF, 0x00, 0x00, 0x00, 0xC0, 0x00, 0x00, 0x00,
0xD9, 0x00, 0x00, 0x00, 0xC3, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0xB4, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0xC2, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0xC1, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0xC5, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xCD, 0xBA, 0xD5, 0xD6, 0xC9, 0xB8, 0xB7, 0xBB,
0xD4, 0xD3, 0xC8, 0xBE, 0xBD, 0xBC, 0xC6, 0xC7,
0xCC, 0xB5, 0xB6, 0xB9, 0xD1, 0xD2, 0xCB, 0xCF,
0xD0, 0xCA, 0xD8, 0xD7, 0xCE, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xDF, 0x00, 0x00, 0x00, 0xDC, 0x00, 0x00, 0x00,
0xDB, 0x00, 0x00, 0x00, 0xDD, 0x00, 0x00, 0x00,
0xDE, 0xB0, 0xB1, 0xB2, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xFE
};
static const uint8_t page25Start = 0x00;
bool OF_VISIBILITY_HIDDEN
_OFUnicodeToCodepage437(const OFUnichar *input, unsigned char *output,
size_t length, bool lossy, bool insecure)
{
for (size_t i = 0; i < length; i++) {
OFUnichar c;
if OF_UNLIKELY (!insecure && input[i] == 0)
return 0;
c = input[i];
if OF_UNLIKELY (c > 0x7F) {
uint8_t idx;
if OF_UNLIKELY (c > 0xFFFF) {
if (lossy) {
output[i] = '?';
continue;
} else
return false;
}
switch (c >> 8) {
CASE_MISSING_IS_ERROR(0)
CASE_MISSING_IS_ERROR(1)
CASE_MISSING_IS_ERROR(3)
CASE_MISSING_IS_ERROR(20)
CASE_MISSING_IS_ERROR(22)
CASE_MISSING_IS_ERROR(23)
CASE_MISSING_IS_ERROR(25)
default:
if (lossy) {
output[i] = '?';
continue;
} else
return false;
}
} else
output[i] = (unsigned char)c;
}
return true;
}