Eliminate ICU dependency

This commit is contained in:
Thomas Krijnen
2019-05-10 11:59:00 +02:00
parent c15120e0ae
commit 0b2bd5d0e8
9 changed files with 131 additions and 317 deletions
+108 -158
View File
@@ -70,89 +70,26 @@
using namespace IfcParse;
using namespace IfcWrite;
#ifdef HAVE_ICU
#include <unicode/unistr.h>
#endif
void IfcCharacterDecoder::addChar(std::stringstream& s,const UChar32& ch) {
#ifdef HAVE_ICU
if ( destination ) {
/* Note: The extraction buffer is of size 5, because in the UTF-8 encoding the
maximum length in bytes is 4. We add 1 for the NUL character. In other encodings
the length could be higher, but we have not taken that into account. */
char extraction_buffer[5] = {};
icu::UnicodeString(ch).extract(extraction_buffer,5,destination,status);
extraction_buffer[4] = '\0';
s << extraction_buffer;
} else {
std::stringstream s2;
s2 << "\\u" << std::hex << std::setw(4) << std::setfill('0') << (int) ch;
s << s2.str();
}
#else
(void)ch;
s.put(substitution_character);
#endif
}
IfcCharacterDecoder::IfcCharacterDecoder(IfcParse::IfcSpfStream* f) {
file = f;
#ifdef HAVE_ICU
if (destination) ucnv_close(destination);
if (compatibility_converter) ucnv_close(compatibility_converter);
destination = 0;
compatibility_converter = 0;
codepage_ = 0;
}
if (mode == DEFAULT) {
destination = ucnv_open(0, &status);
} else if (mode == UTF8) {
destination = ucnv_open("utf-8", &status);
} else if (mode == LATIN) {
destination = ucnv_open("iso-8859-1", &status);
}
if (compatibility_charset.empty()) {
compatibility_charset = ucnv_getDefaultName();
}
compatibility_converter = ucnv_open(compatibility_charset.c_str(), &status);
#endif
}
IfcCharacterDecoder::~IfcCharacterDecoder() {
#ifdef HAVE_ICU
if ( destination ) ucnv_close(destination);
if ( converter ) ucnv_close(converter);
if ( compatibility_converter ) ucnv_close(compatibility_converter);
destination = 0;
converter = 0;
compatibility_converter = 0;
ucnv_flushCache();
#endif
}
IfcCharacterDecoder::operator std::string() {
unsigned int parse_state = 0;
std::stringstream s;
s.put('\'');
builder_.clear();
builder_.push_back('\'');
char current_char;
int codepage = 1;
unsigned int hex = 0;
unsigned int hex_count = 0;
#ifdef HAVE_ICU
unsigned int old_hex = 0; // for compatibility_mode
#endif
while ( (current_char = file->Peek()) != 0 ) {
if ( EXPECTS_CHARACTER(parse_state) ) {
#ifdef HAVE_ICU
if ( previous_codepage != codepage ) {
if ( converter ) ucnv_close(converter);
char encoder[11] = {'i','s','o','-','8','8','5','9','-', static_cast<char>(codepage + 0x30) };
converter = ucnv_open(encoder, &status);
}
const char characters[2] = { static_cast<char>(current_char + 0x80) };
const char* char_array = &characters[0];
UChar32 ch = ucnv_getNextUChar(converter,&char_array,char_array+1,&status);
addChar(s,ch);
#else
UChar32 ch = 0;
addChar(s,ch);
#endif
builder_.push_back(IfcUtil::convert_codepage(codepage, current_char + 0x80));
parse_state = 0;
} else if ( current_char == '\'' && ! parse_state ) {
parse_state = APOSTROPHE;
@@ -192,31 +129,15 @@ IfcCharacterDecoder::operator std::string() {
hex += HEX_TO_INT(current_char);
if ( (hex_count == 2 && !(parse_state & EXTENDED2)) ||
(hex_count == 4 && !(parse_state & EXTENDED4)) ||
(hex_count == 8) ) {
#ifdef HAVE_ICU
if (compatibility_mode) {
if (old_hex == 0) {
old_hex = hex;
} else {
char characters[3] = { (char)old_hex, (char)hex };
const char* char_array = &characters[0];
UChar32 ch = ucnv_getNextUChar(compatibility_converter,&char_array,char_array+2,&status);
addChar(s,ch);
old_hex = 0;
}
}
else {
#endif
addChar(s,(UChar32) hex);
#ifdef HAVE_ICU
}
#endif
if ( hex_count == 2 ) parse_state = 0;
else {
CLEAR_HEX(parse_state);
parse_state |= ENCOUNTERED_HEX;
}
hex = hex_count = 0;
(hex_count == 8) )
{
builder_.push_back(hex);
if ( hex_count == 2 ) parse_state = 0;
else {
CLEAR_HEX(parse_state);
parse_state |= ENCOUNTERED_HEX;
}
hex = hex_count = 0;
}
} else if ( parse_state && !(
(current_char == '\\' && parse_state == FIRST_SOLIDUS) ||
@@ -226,14 +147,40 @@ IfcCharacterDecoder::operator std::string() {
throw IfcInvalidTokenException(file->Tell(), current_char);
} else {
parse_state = hex = hex_count = 0;
// NOTE: this is in fact wrong, this ought to be the representation of the character.
// In UTF-8 this is the same, but we should not rely on that.
s.put(current_char);
builder_.push_back(current_char);
}
file->Inc();
}
s.put('\'');
return s.str();
builder_.push_back('\'');
if (mode == UTF8) {
return IfcUtil::convert_utf8(builder_);
} else if (mode == SUBSTITUTE) {
std::string r;
r.reserve(builder_.size());
const char& sub = substitution_character;
std::transform(builder_.begin(), builder_.end(), std::back_inserter(r), [&sub](wchar_t c) {
if (c >= 0x20 && c <= 0x7e) {
return (char)c;
} else {
return sub;
}
});
return r;
} else if (mode == ESCAPE) {
std::stringstream str;
str << std::hex << std::setw(4) << std::setfill('0');
std::for_each(builder_.begin(), builder_.end(), [&str](wchar_t c) {
if (c >= 0x20 && c <= 0x7e) {
str.put((char)c);
} else {
str << "\\u" << c;
}
});
return str.str();
} else {
throw IfcParse::IfcException("Invalid conversion mode");
}
}
void IfcCharacterDecoder::dryRun() {
@@ -298,60 +245,28 @@ void IfcCharacterDecoder::dryRun() {
file->Inc();
}
}
#ifdef HAVE_ICU
UConverter* IfcCharacterDecoder::destination = 0;
UConverter* IfcCharacterDecoder::converter = 0;
UConverter* IfcCharacterDecoder::compatibility_converter = 0;
int IfcCharacterDecoder::previous_codepage = -1;
UErrorCode IfcCharacterDecoder::status = U_ZERO_ERROR;
#endif
#ifdef HAVE_ICU
IfcCharacterDecoder::ConversionMode IfcCharacterDecoder::mode = IfcCharacterDecoder::UTF8;
// Many BIM software (eg. Revit, ArchiCAD, ...) has wrong behavior
bool IfcCharacterDecoder::compatibility_mode = false;
std::string IfcCharacterDecoder::compatibility_charset = "";
#else
char IfcCharacterDecoder::substitution_character = '_';
#endif
IfcCharacterEncoder::IfcCharacterEncoder(const std::string& input) {
#ifdef HAVE_ICU
if ( !converter) converter = ucnv_open("utf-8", &status);
#endif
str = input;
}
IfcCharacterEncoder::~IfcCharacterEncoder() {
#ifdef HAVE_ICU
if ( converter) ucnv_close(converter);
converter = 0;
#endif
}
IfcCharacterEncoder::IfcCharacterEncoder(const std::string& input)
: str(IfcUtil::convert_utf8(input)) {}
IfcCharacterEncoder::operator std::string() {
std::ostringstream oss;
oss.put('\'');
#ifdef HAVE_ICU
// Either 2 or 4 to uses \X2 or \X4 respectively.
// Currently hardcoded to 4, but \X2 might be
// sufficient for nearly all purposes.
const int num_bytes = 4;
const std::string num_bytes_str = std::string(1,num_bytes + 0x30);
UChar32 ch;
const char* source = str.c_str();
const char* limit = source + str.size();
bool in_extended = false;
while(source < limit) {
ch = ucnv_getNextUChar(converter, &source, limit, &status);
for (auto it = str.begin(); it != str.end(); ++it) {
auto ch = *it;
const bool within_spf_range = ch >= 0x20 && ch <= 0x7e;
if ( in_extended && within_spf_range ) {
oss << "\\X0\\";
@@ -368,26 +283,61 @@ IfcCharacterEncoder::operator std::string() {
}
if ( in_extended ) oss << "\\X0\\";
#else
for (std::string::const_iterator i = str.begin(); i != str.end(); ++i) {
char ch = *i;
const bool within_spf_range = ch >= 0x20 && ch <= 0x7e;
if (within_spf_range) {
if ( ch == '\\' || ch == '\'' ) {
oss.put(ch);
}
oss.put(ch);
} else {
oss.put('_');
}
}
#endif
oss.put('\'');
return oss.str();
}
/*
Generate with:
#ifdef HAVE_ICU
UErrorCode IfcCharacterEncoder::status = U_ZERO_ERROR;
UConverter* IfcCharacterEncoder::converter = 0;
#endif
import codecs, string
codecs.register_error('zero', lambda e: (chr(0),e.start + 1))
def _():
for i in range(1,17):
try:
chrs = bytes(range(256)).decode('iso-8859-%d' % i, errors='zero')
except: chrs = "\x00" * 256
yield str(list(map(ord, chrs))).translate(string.maketrans("[]", "{}"))
"{%s}" % ",".join(_())
*/
std::wstring::value_type IfcUtil::convert_codepage(int codepage, int c) {
if (codepage < 1 || codepage > 16 || codepage == 12) {
throw IfcParse::IfcException("Invalid codepage");
}
if (c < 0 || c > 255) {
throw IfcParse::IfcException("Invalid character ordinal");
}
static std::array<std::array<wchar_t, 256>, 16> codepage_data = { {
{{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255}},
{{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 260, 728, 321, 164, 317, 346, 167, 168, 352, 350, 356, 377, 173, 381, 379, 176, 261, 731, 322, 180, 318, 347, 711, 184, 353, 351, 357, 378, 733, 382, 380, 340, 193, 194, 258, 196, 313, 262, 199, 268, 201, 280, 203, 282, 205, 206, 270, 272, 323, 327, 211, 212, 336, 214, 215, 344, 366, 218, 368, 220, 221, 354, 223, 341, 225, 226, 259, 228, 314, 263, 231, 269, 233, 281, 235, 283, 237, 238, 271, 273, 324, 328, 243, 244, 337, 246, 247, 345, 367, 250, 369, 252, 253, 355, 729}},
{{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 294, 728, 163, 164, 0, 292, 167, 168, 304, 350, 286, 308, 173, 0, 379, 176, 295, 178, 179, 180, 181, 293, 183, 184, 305, 351, 287, 309, 189, 0, 380, 192, 193, 194, 0, 196, 266, 264, 199, 200, 201, 202, 203, 204, 205, 206, 207, 0, 209, 210, 211, 212, 288, 214, 215, 284, 217, 218, 219, 220, 364, 348, 223, 224, 225, 226, 0, 228, 267, 265, 231, 232, 233, 234, 235, 236, 237, 238, 239, 0, 241, 242, 243, 244, 289, 246, 247, 285, 249, 250, 251, 252, 365, 349, 729}},
{{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 260, 312, 342, 164, 296, 315, 167, 168, 352, 274, 290, 358, 173, 381, 175, 176, 261, 731, 343, 180, 297, 316, 711, 184, 353, 275, 291, 359, 330, 382, 331, 256, 193, 194, 195, 196, 197, 198, 302, 268, 201, 280, 203, 278, 205, 206, 298, 272, 325, 332, 310, 212, 213, 214, 215, 216, 370, 218, 219, 220, 360, 362, 223, 257, 225, 226, 227, 228, 229, 230, 303, 269, 233, 281, 235, 279, 237, 238, 299, 273, 326, 333, 311, 244, 245, 246, 247, 248, 371, 250, 251, 252, 361, 363, 729}},
{{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 1025, 1026, 1027, 1028, 1029, 1030, 1031, 1032, 1033, 1034, 1035, 1036, 173, 1038, 1039, 1040, 1041, 1042, 1043, 1044, 1045, 1046, 1047, 1048, 1049, 1050, 1051, 1052, 1053, 1054, 1055, 1056, 1057, 1058, 1059, 1060, 1061, 1062, 1063, 1064, 1065, 1066, 1067, 1068, 1069, 1070, 1071, 1072, 1073, 1074, 1075, 1076, 1077, 1078, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086, 1087, 1088, 1089, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098, 1099, 1100, 1101, 1102, 1103, 8470, 1105, 1106, 1107, 1108, 1109, 1110, 1111, 1112, 1113, 1114, 1115, 1116, 167, 1118, 1119}},
{{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 0, 0, 0, 164, 0, 0, 0, 0, 0, 0, 0, 1548, 173, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1563, 0, 0, 0, 1567, 0, 1569, 1570, 1571, 1572, 1573, 1574, 1575, 1576, 1577, 1578, 1579, 1580, 1581, 1582, 1583, 1584, 1585, 1586, 1587, 1588, 1589, 1590, 1591, 1592, 1593, 1594, 0, 0, 0, 0, 0, 1600, 1601, 1602, 1603, 1604, 1605, 1606, 1607, 1608, 1609, 1610, 1611, 1612, 1613, 1614, 1615, 1616, 1617, 1618, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}},
{{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 8216, 8217, 163, 8364, 8367, 166, 167, 168, 169, 890, 171, 172, 173, 0, 8213, 176, 177, 178, 179, 900, 901, 902, 183, 904, 905, 906, 187, 908, 189, 910, 911, 912, 913, 914, 915, 916, 917, 918, 919, 920, 921, 922, 923, 924, 925, 926, 927, 928, 929, 0, 931, 932, 933, 934, 935, 936, 937, 938, 939, 940, 941, 942, 943, 944, 945, 946, 947, 948, 949, 950, 951, 952, 953, 954, 955, 956, 957, 958, 959, 960, 961, 962, 963, 964, 965, 966, 967, 968, 969, 970, 971, 972, 973, 974, 0}},
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}};
auto r = codepage_data[codepage - 1][c];
if (r == 0) {
throw IfcParse::IfcException("Character not defined");
}
return r;
}
std::string IfcUtil::convert_utf8(const std::wstring& s) {
return std::wstring_convert<std::codecvt_utf8<std::wstring::value_type>>().to_bytes(s);
}
std::wstring IfcUtil::convert_utf8(const std::string& s) {
return std::wstring_convert<std::codecvt_utf8<std::wstring::value_type>>().from_bytes(s);
}