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Make ICU no longer a required dependency

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This commit is contained in:
Thomas Krijnen
2011-09-27 19:30:53 +00:00
parent 9edbe7e6c3
commit a9143655c3
3 changed files with 29 additions and 3 deletions
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src/ifcparse/IfcCharacterDecoder.cpp
+17 -2
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@@ -69,6 +69,7 @@
using namespace IfcParse;
void IfcCharacterDecoder::addChar(std::stringstream& s,const UChar32& ch) {
#ifdef HAVE_ICU
if ( destination ) {
char* extraction_buffer = new char[4];
UnicodeString(ch).extract(extraction_buffer,4,destination,status);
@@ -79,18 +80,25 @@ void IfcCharacterDecoder::addChar(std::stringstream& s,const UChar32& ch) {
s2 << "\\u" << std::hex << std::setw(4) << std::setfill('0') << (int) ch;
s << s2.str();
}
#else
s.put(substitution_character);
#endif
}
IfcCharacterDecoder::IfcCharacterDecoder(IfcParse::File* f) {
file = f;
#ifdef HAVE_ICU
if ( ! destination && mode == UTF8 ) {
destination = ucnv_open("utf-8", &status);
} else if ( ! destination && mode == LATIN ) {
destination = ucnv_open("iso-8859-1", &status);
}
#endif
}
IfcCharacterDecoder::~IfcCharacterDecoder() {
#ifdef HAVE_ICU
if ( destination ) ucnv_close(destination);
if ( converter ) ucnv_close(converter);
#endif
}
IfcCharacterDecoder::operator std::string() {
unsigned int parse_state = 0;
@@ -102,6 +110,7 @@ IfcCharacterDecoder::operator std::string() {
unsigned int hex_count = 0;
while ( current_char = file->Peek() ) {
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','-',codepage + 0x30};
@@ -111,6 +120,10 @@ IfcCharacterDecoder::operator std::string() {
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
parse_state = 0;
} else if ( current_char == '\'' && ! parse_state ) {
parse_state = APOSTROPHE;
@@ -225,10 +238,12 @@ void IfcCharacterDecoder::dryRun() {
file->Inc();
}
}
#ifdef HAVE_ICU
UConverter* IfcCharacterDecoder::destination = 0;
UConverter* IfcCharacterDecoder::converter = 0;
int IfcCharacterDecoder::previous_codepage = -1;
UErrorCode IfcCharacterDecoder::status = U_ZERO_ERROR;
IfcCharacterDecoder::ConversionMode IfcCharacterDecoder::mode = IfcCharacterDecoder::JSON;
#else
char IfcCharacterDecoder::substitution_character = '_';
#endif