ObjFW  Check-in [4a01b5b9f7]

Overview
Comment:More efficient UTF-8 -> ISO-8859-3 conversion
Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA3-256: 4a01b5b9f770257c8ed4f756249498ae97b65a5f23ccf67e7b0ef4d0e6e6e34b
User & Date: js on 2017-02-12 16:55:13
Other Links: manifest | tags
Context
2017-02-12
18:33
encodings: Code deduplication check-in: 9fdfdec6f7 user: js tags: trunk
16:55
More efficient UTF-8 -> ISO-8859-3 conversion check-in: 4a01b5b9f7 user: js tags: trunk
16:26
More efficient UTF-8 -> ISO-8859-2 conversion check-in: 66c759859a user: js tags: trunk
Changes
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Modified src/encodings/iso_8859_2.m from [b0786ce1a1] to [e1a92dbc8a].

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	0x010D, 0x00E9, 0x0119, 0x00EB, 0x011B, 0x00ED, 0x00EE, 0x010F,
	0x0111, 0x0144, 0x0148, 0x00F3, 0x00F4, 0x0151, 0x00F6, 0x00F7,
	0x0159, 0x016F, 0x00FA, 0x0171, 0x00FC, 0x00FD, 0x0163, 0x02D9
};
const size_t of_iso_8859_2_table_offset =
    256 - (sizeof(of_iso_8859_2_table) / sizeof(*of_iso_8859_2_table));

static char page0[] = {
static const char page0[] = {
	0xA0, 0x00, 0x00, 0x00, 0xA4, 0x00, 0x00, 0xA7,
	0xA8, 0x00, 0x00, 0x00, 0x00, 0xAD, 0x00, 0x00,
	0xB0, 0x00, 0x00, 0x00, 0xB4, 0x00, 0x00, 0x00,
	0xB8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
	0x00, 0xC1, 0xC2, 0x00, 0xC4, 0x00, 0x00, 0xC7,
	0x00, 0xC9, 0x00, 0xCB, 0x00, 0xCD, 0xCE, 0x00,
	0x00, 0x00, 0x00, 0xD3, 0xD4, 0x00, 0xD6, 0xD7,
	0x00, 0x00, 0xDA, 0x00, 0xDC, 0xDD, 0x00, 0xDF,
	0x00, 0xE1, 0xE2, 0x00, 0xE4, 0x00, 0x00, 0xE7,
	0x00, 0xE9, 0x00, 0xEB, 0x00, 0xED, 0xEE, 0x00,
	0x00, 0x00, 0x00, 0xF3, 0xF4, 0x00, 0xF6, 0xF7,
	0x00, 0x00, 0xFA, 0x00, 0xFC, 0xFD, 0x00, 0x00
	0x00, 0x00, 0xFA, 0x00, 0xFC, 0xFD
};
static uint8_t page0Start = 160;
static uint16_t page0Size = sizeof(page0) / sizeof(*page0);
static const uint8_t page0Start = 0xA0;
static const uint16_t page0Size = sizeof(page0) / sizeof(*page0);

static char page1[] = {
static const char page1[] = {
	0xC3, 0xE3, 0xA1, 0xB1, 0xC6, 0xE6, 0x00, 0x00,
	0x00, 0x00, 0xC8, 0xE8, 0xCF, 0xEF, 0xD0, 0xF0,
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xCA, 0xEA,
	0xCC, 0xEC, 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, 0xC5,
	0xE5, 0x00, 0x00, 0xA5, 0xB5, 0x00, 0x00, 0xA3,
	0xB3, 0xD1, 0xF1, 0x00, 0x00, 0xD2, 0xF2, 0x00,
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD5, 0xF5,
	0x00, 0x00, 0xC0, 0xE0, 0x00, 0x00, 0xD8, 0xF8,
	0xA6, 0xB6, 0x00, 0x00, 0xAA, 0xBA, 0xA9, 0xB9,
	0xDE, 0xFE, 0xAB, 0xBB, 0x00, 0x00, 0x00, 0x00,
	0x00, 0x00, 0x00, 0x00, 0xD9, 0xF9, 0xDB, 0xFB,
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xAC,
	0xBC, 0xAF, 0xBF, 0xAE, 0xBE
};
static uint8_t page1Start = 2;
static uint16_t page1Size = sizeof(page1) / sizeof(*page1);
static const uint8_t page1Start = 0x02;
static const uint16_t page1Size = sizeof(page1) / sizeof(*page1);

static char page2[] = {
static const char page2[] = {
	0xB7, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
	0x00, 0xA2, 0xFF, 0x00, 0xB2, 0x00, 0xBD
};
static uint8_t page2Start = 0xC7;
static uint16_t page2Size = sizeof(page2) / sizeof(*page2);
static const uint8_t page2Start = 0xC7;
static const uint16_t page2Size = sizeof(page2) / sizeof(*page2);

bool
of_unicode_to_iso_8859_2(const of_unichar_t *input, unsigned char *output,
    size_t length, bool lossy)
{
	for (size_t i = 0; i < length; i++) {
		of_unichar_t c = input[i];
︙

Modified src/encodings/iso_8859_3.m from [c69421d1b9] to [787209b806].

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	0x00E8, 0x00E9, 0x00EA, 0x00EB, 0x00EC, 0x00ED, 0x00EE, 0x00EF,
	0xFFFF, 0x00F1, 0x00F2, 0x00F3, 0x00F4, 0x0121, 0x00F6, 0x00F7,
	0x011D, 0x00F9, 0x00FA, 0x00FB, 0x00FC, 0x016D, 0x015D, 0x02D9
};
const size_t of_iso_8859_3_table_offset =
    256 - (sizeof(of_iso_8859_3_table) / sizeof(*of_iso_8859_3_table));

static const char page0[] = {
	0xA0, 0x00, 0x00, 0xA3, 0xA4, 0x00, 0x00, 0xA7,
	0xA8, 0x00, 0x00, 0x00, 0x00, 0xAD, 0x00, 0x00,
	0xB0, 0x00, 0xB2, 0xB3, 0xB4, 0xB5, 0x00, 0xB7,
	0xB8, 0x00, 0x00, 0x00, 0x00, 0xBD, 0x00, 0x00,
	0xC0, 0xC1, 0xC2, 0x00, 0xC4, 0x00, 0x00, 0xC7,
	0xC8, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF,
	0x00, 0xD1, 0xD2, 0xD3, 0xD4, 0x00, 0xD6, 0xD7,
	0x00, 0xD9, 0xDA, 0xDB, 0xDC, 0x00, 0x00, 0xDF,
	0xE0, 0xE1, 0xE2, 0x00, 0xE4, 0x00, 0x00, 0xE7,
	0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF,
	0x00, 0xF1, 0xF2, 0xF3, 0xF4, 0x00, 0xF6, 0xF7,
	0x00, 0xF9, 0xFA, 0xFB, 0xFC, 0x00, 0x00, 0x00
};
static const uint8_t page0Start = 0xA0;
static const uint16_t page0Size = sizeof(page0) / sizeof(*page0);

static const uint8_t page1Start = 0x08;
static const char page1[] = {
	0xC6, 0xE6, 0xC5, 0xE5, 0x00, 0x00, 0x00, 0x00,
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
	0x00, 0x00, 0x00, 0x00, 0xD8, 0xF8, 0xAB, 0xBB,
	0xD5, 0xF5, 0x00, 0x00, 0xA6, 0xB6, 0xA1, 0xB1,
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
	0xA9, 0xB9, 0x00, 0x00, 0xAC, 0xBC, 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, 0xDE, 0xFE, 0xAA, 0xBA,
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
	0x00, 0x00, 0x00, 0x00, 0xDD, 0xFD, 0x00, 0x00,
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
	0x00, 0x00, 0x00, 0xAF, 0xBF
};
static const uint16_t page1Size = sizeof(page1) / sizeof(*page1);

static const char page2[] = {
	0xA2, 0xFF
};
static const uint8_t page2Start = 0xD8;
static const uint16_t page2Size = sizeof(page2) / sizeof(*page2);

bool
of_unicode_to_iso_8859_3(const of_unichar_t *input, unsigned char *output,
    size_t length, bool lossy)
{
	for (size_t i = 0; i < length; i++) {
		of_unichar_t c = input[i];

		if OF_UNLIKELY (c > 0x7F) {
			uint8_t index;

			if OF_UNLIKELY (c > 0xFFFF) {
				if (lossy) {
					output[i] = '?';
					continue;
				} else
					return false;
			}

			if OF_UNLIKELY (c >= 0x80 && c <= 0x9F)
				output[i] = c;
			else {
				switch ((of_char16_t)c) {
			switch (c >> 8) {
				case 0xA0:
					output[i] = 0xA0;
					break;
				case 0x126:
			case 0:
					output[i] = 0xA1;
					break;
				case 0x2D8:
					output[i] = 0xA2;
					break;
				case 0xA3:
				if OF_UNLIKELY ((c & 0xFF) < page0Start) {
					output[i] = (unsigned char)c;
					continue;
				}

					output[i] = 0xA3;
					break;
				case 0xA4:
					output[i] = 0xA4;
				index = (c & 0xFF) - page0Start;
				if (index >= page0Size || page0[index] == 0) {
					break;
				case 0x124:
					output[i] = 0xA6;
					break;
				case 0xA7:
					output[i] = 0xA7;
					break;
				case 0xA8:
					output[i] = 0xA8;
					break;
				case 0x130:
					output[i] = 0xA9;
					break;
				case 0x15E:
					output[i] = 0xAA;
					break;
				case 0x11E:
					output[i] = 0xAB;
					break;
				case 0x134:
					output[i] = 0xAC;
					break;
				case 0xAD:
					output[i] = 0xAD;
					break;
				case 0x17B:
					output[i] = 0xAF;
					break;
				case 0xB0:
					output[i] = 0xB0;
					break;
				case 0x127:
					output[i] = 0xB1;
					break;
				case 0xB2:
					output[i] = 0xB2;
					break;
				case 0xB3:
					output[i] = 0xB3;
					break;
				case 0xB4:
					output[i] = 0xB4;
					break;
				case 0xB5:
					output[i] = 0xB5;
					break;
				case 0x125:
					output[i] = 0xB6;
					break;
				case 0xB7:
					output[i] = 0xB7;
					break;
				case 0xB8:
					if (lossy) {
						output[i] = '?';
						continue;
					} else
					output[i] = 0xB8;
					break;
						return false;
				case 0x131:
					output[i] = 0xB9;
					break;
				}
				output[i] = page0[index];
				break;
				case 0x15F:
					output[i] = 0xBA;
					break;
				case 0x11F:
					output[i] = 0xBB;
					break;
				case 0x135:
					output[i] = 0xBC;
					break;
				case 0xBD:
					output[i] = 0xBD;
					break;
				case 0x17C:
					output[i] = 0xBF;
					break;
				case 0xC0:
					output[i] = 0xC0;
					break;
				case 0xC1:
					output[i] = 0xC1;
					break;
				case 0xC2:
					output[i] = 0xC2;
					break;
				case 0xC4:
					output[i] = 0xC4;
					break;
				case 0x10A:
					output[i] = 0xC5;
					break;
				case 0x108:
					output[i] = 0xC6;
					break;
				case 0xC7:
					output[i] = 0xC7;
					break;
				case 0xC8:
					output[i] = 0xC8;
					break;
				case 0xC9:
					output[i] = 0xC9;
					break;
				case 0xCA:
					output[i] = 0xCA;
					break;
				case 0xCB:
					output[i] = 0xCB;
					break;
				case 0xCC:
					output[i] = 0xCC;
					break;
				case 0xCD:
					output[i] = 0xCD;
					break;
				case 0xCE:
					output[i] = 0xCE;
					break;
				case 0xCF:
					output[i] = 0xCF;
					break;
				case 0xD1:
					output[i] = 0xD1;
					break;
				case 0xD2:
					output[i] = 0xD2;
					break;
				case 0xD3:
			case 1:
				index = (c & 0xFF) - page1Start;
				if (index >= page1Size || page1[index] == 0) {
					if (lossy) {
						output[i] = '?';
						continue;
					} else
					output[i] = 0xD3;
					break;
						return false;
				case 0xD4:
					output[i] = 0xD4;
				}
				output[i] = page1[index];
					break;
				case 0x120:
					output[i] = 0xD5;
					break;
				case 0xD6:
					output[i] = 0xD6;
					break;
				case 0xD7:
					output[i] = 0xD7;
					break;
				case 0x11C:
					output[i] = 0xD8;
					break;
				case 0xD9:
					output[i] = 0xD9;
					break;
				case 0xDA:
					output[i] = 0xDA;
					break;
				case 0xDB:
					output[i] = 0xDB;
					break;
				case 0xDC:
					output[i] = 0xDC;
					break;
				case 0x16C:
					output[i] = 0xDD;
					break;
				case 0x15C:
					output[i] = 0xDE;
					break;
				case 0xDF:
					output[i] = 0xDF;
					break;
				case 0xE0:
					output[i] = 0xE0;
					break;
				case 0xE1:
					output[i] = 0xE1;
					break;
				case 0xE2:
					output[i] = 0xE2;
					break;
				case 0xE4:
					output[i] = 0xE4;
					break;
				case 0x10B:
					output[i] = 0xE5;
					break;
				case 0x109:
					output[i] = 0xE6;
					break;
				case 0xE7:
					output[i] = 0xE7;
					break;
				case 0xE8:
					output[i] = 0xE8;
					break;
				case 0xE9:
				break;
			case 2:
					output[i] = 0xE9;
					break;
				case 0xEA:
					output[i] = 0xEA;
					break;
				case 0xEB:
					output[i] = 0xEB;
					break;
				case 0xEC:
					output[i] = 0xEC;
					break;
				case 0xED:
					output[i] = 0xED;
					break;
				case 0xEE:
					output[i] = 0xEE;
					break;
				case 0xEF:
					output[i] = 0xEF;
					break;
				case 0xF1:
					output[i] = 0xF1;
				index = (c & 0xFF) - page2Start;
				if (index >= page2Size || page2[index] == 0) {
					break;
				case 0xF2:
					output[i] = 0xF2;
					break;
				case 0xF3:
					output[i] = 0xF3;
					break;
				case 0xF4:
					output[i] = 0xF4;
					break;
				case 0x121:
					output[i] = 0xF5;
					break;
				case 0xF6:
					output[i] = 0xF6;
					break;
				case 0xF7:
					output[i] = 0xF7;
					break;
				case 0x11D:
					output[i] = 0xF8;
					break;
				case 0xF9:
					output[i] = 0xF9;
					break;
				case 0xFA:
					output[i] = 0xFA;
					break;
				case 0xFB:
					output[i] = 0xFB;
					break;
				case 0xFC:
					output[i] = 0xFC;
					break;
				case 0x16D:
					output[i] = 0xFD;
					break;
				case 0x15D:
					output[i] = 0xFE;
					break;
				case 0x2D9:
					output[i] = 0xFF;
					break;
				default:
					if (lossy)
					if (lossy) {
						output[i] = '?';
						continue;
					else
					} else
						return false;

					break;
				}
				}
				output[i] = page2[index];
				break;
			default:
				if (lossy) {
					output[i] = '?';
					continue;
				} else
					return false;
			}
		} else
			output[i] = (unsigned char)c;
	}

	return true;
}

Fossil 2.23 [47362306a7] 2023-11-01 18:56:47
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