Function fxCharSetStrings

xs/sources/xsre.c:1199–1313

}

void* fxCharSetStrings(txPatternParser* parser)
{
	txCharSet* result = C_NULL;
	txString buffer = C_NULL;
	txInteger bufferSize = 0;
	txString* strings = C_NULL;
	txInteger stringCount = 0;
	txInteger offset, size, length, character;
	txString string;
	
	fxPatternParserNext(parser);
	if (parser->character != '{')
		fxPatternParserError(parser, gxErrors[mxInvalidEscape]);
		
	offset = parser->offset;
	fxPatternParserNext(parser);
	length = 0;	
	for (;;) {
		if (parser->character == C_EOF)
			fxPatternParserError(parser, gxErrors[mxInvalidEscape]);	
		if ((parser->character == '}') || (parser->character == '|')) {
			if (length > 1) {
				bufferSize++;
				stringCount++;
			}
			if (parser->character == '}')
				break;
			length = 0;	
			fxPatternParserNext(parser);
		}
		else {
			if (parser->character == '\\') {
				fxPatternParserNext(parser);
				fxPatternParserEscape(parser, 1);
			}
			character = parser->character;
			if (parser->flags & XS_REGEXP_I)
				character = fxCharCaseCanonicalize(character, 1);
			bufferSize += fxUTF8Length(character); // no surrogate
			length++;
			fxPatternParserNext(parser);
		}		
	}
	
	result = fxPatternParserCreateTerm(parser, sizeof(txCharSet), fxCharSetMeasure);
	result->stringCount = 0;
	result->strings = C_NULL;
	result->characters[0] = 0;
	if (bufferSize > 0) {
		buffer = fxPatternParserCreateChunk(parser, bufferSize);
	}
	if (stringCount > 0) {
		strings = fxPatternParserCreateChunk(parser, stringCount * sizeof(txString));
		stringCount = 0;
	}
	
	parser->offset = offset;
	fxPatternParserNext(parser);