コード例 #1
0
ファイル: grammars.c プロジェクト: actility/ong
unsigned int getBitsFirstPartCode(EXIOptions opts, EXIGrammar* grammar, GrammarRule* currentRule, SmallIndex currentRuleIndx, boolean isNilType)
{
	unsigned char secondLevelExists = 0;

	if(IS_BUILT_IN_ELEM(grammar->props))
	{
		// Built-in element grammar
		// There is always a second level production
		return getBitsNumber(currentRule->pCount);
	}
	else if(IS_DOCUMENT(grammar->props))
	{
		// Document grammar
		if(IS_PRESERVED(opts.preserve, PRESERVE_COMMENTS) || IS_PRESERVED(opts.preserve, PRESERVE_PIS))
			secondLevelExists = 1;
		else if(currentRuleIndx == 0 && IS_PRESERVED(opts.preserve, PRESERVE_DTD))
			secondLevelExists = 1;

		return getBitsNumber(currentRule->pCount - 1 + secondLevelExists);
	}
	else if(IS_FRAGMENT(grammar->props))
	{
		// Fragment grammar
		if(IS_PRESERVED(opts.preserve, PRESERVE_COMMENTS) || IS_PRESERVED(opts.preserve, PRESERVE_PIS))
			secondLevelExists = 1;
		return getBitsNumber(currentRule->pCount - 1 + secondLevelExists);
	}
	else
	{
		// Schema-informed element/type grammar
		Index prodCount;

		if(isNilType == FALSE)
			prodCount = currentRule->pCount;
		else
			prodCount = RULE_GET_AT_COUNT(currentRule->meta) + RULE_CONTAIN_EE(currentRule->meta);

		if(WITH_STRICT(opts.enumOpt))
		{
			// Strict mode
			if(isNilType == FALSE && currentRuleIndx == 0 && (HAS_NAMED_SUB_TYPE_OR_UNION(grammar->props) || IS_NILLABLE(grammar->props)))
				secondLevelExists = 1;
			return getBitsNumber(prodCount - 1 + secondLevelExists);
		}
		else // Non-strict mode
		{
			// There is always a second level production
			return getBitsNumber(prodCount);
		}
	}
}
コード例 #2
0
ファイル: grammars.c プロジェクト: salarshad/pyexip
errorCode processNextProduction(EXIStream* strm, SmallIndex* nonTermID_out, ContentHandler* handler, void* app_data)
{
	errorCode tmp_err_code = UNEXPECTED_ERROR;
	unsigned int tmp_bits_val = 0;
	unsigned char b = 0;
	GrammarRule* currentRule;

	DEBUG_MSG(INFO, DEBUG_GRAMMAR, (">Next production non-term-id: %u\n", (unsigned int) strm->context.currNonTermID));

	if(strm->context.currNonTermID >=  strm->gStack->grammar->count)
		return INCONSISTENT_PROC_STATE;

	if(IS_BUILT_IN_ELEM(strm->gStack->grammar->props))  // If the current grammar is build-in Element grammar ...
		currentRule = (GrammarRule*) &((DynGrammarRule*) strm->gStack->grammar->rule)[strm->context.currNonTermID];
	else
		currentRule = &strm->gStack->grammar->rule[strm->context.currNonTermID];

#if DEBUG_GRAMMAR == ON
	{
		tmp_err_code = printGrammarRule(strm->context.currNonTermID, currentRule, strm->schema);
		if(tmp_err_code != ERR_OK)
		{
			DEBUG_MSG(INFO, DEBUG_GRAMMAR, (">Error printing grammar rule\n"));
		}
	}
#endif

	for(b = 0; b < 3; b++)
	{
		if(currentRule->part[b].count == 0) // No productions available with this length code
			continue;
		if(currentRule->part[b].bits == 0) // encoded with zero bits
			return handleProduction(strm, currentRule, &currentRule->part[b].prod[0], nonTermID_out, handler, app_data, b + 1);

		tmp_err_code = decodeNBitUnsignedInteger(strm, currentRule->part[b].bits, &tmp_bits_val);
		if(tmp_err_code != ERR_OK)
			return tmp_err_code;

		if(tmp_bits_val == currentRule->part[b].count) // The code has more parts
			continue;

		return handleProduction(strm, currentRule, &currentRule->part[b].prod[currentRule->part[b].count - 1 - tmp_bits_val], nonTermID_out, handler, app_data, b + 1);
	}
	return tmp_err_code;
}
コード例 #3
0
ファイル: grammars.c プロジェクト: salarshad/pyexip
static errorCode handleProduction(EXIStream* strm, GrammarRule* currentRule, Production* prodHit,
				SmallIndex* nonTermID_out, ContentHandler* handler, void* app_data, unsigned int codeLength)
{
	errorCode tmp_err_code = UNEXPECTED_ERROR;
	QNameID qnameID = {URI_MAX, LN_MAX};

	*nonTermID_out = prodHit->nonTermID;

	switch(prodHit->eventType)
	{
		case EVENT_SD:
			if(handler->startDocument != NULL)
			{
				if(handler->startDocument(app_data) == EXIP_HANDLER_STOP)
					return HANDLER_STOP_RECEIVED;
			}
		break;
		case EVENT_ED:
			if(handler->endDocument != NULL)
			{
				if(handler->endDocument(app_data) == EXIP_HANDLER_STOP)
					return HANDLER_STOP_RECEIVED;
			}
		break;
		case EVENT_EE:
			if(handler->endElement != NULL)
			{
				if(handler->endElement(app_data) == EXIP_HANDLER_STOP)
					return HANDLER_STOP_RECEIVED;
			}

			if(codeLength > 1 && IS_BUILT_IN_ELEM(strm->gStack->grammar->props))   // #1# COMMENT
			{
				tmp_err_code = insertZeroProduction((DynGrammarRule*) currentRule, EVENT_EE, GR_VOID_NON_TERMINAL, &qnameID);
				if(tmp_err_code != ERR_OK)
					return tmp_err_code;
			}
		break;
		case EVENT_SC:
			if(handler->selfContained != NULL)
			{
				if(handler->selfContained(app_data) == EXIP_HANDLER_STOP)
					return HANDLER_STOP_RECEIVED;
			}
		break;
		default: // The event has content!
			if(prodHit->eventType == EVENT_CH)
			{
				if(codeLength > 1 && IS_BUILT_IN_ELEM(strm->gStack->grammar->props))   // #2# COMMENT
				{
					tmp_err_code = insertZeroProduction((DynGrammarRule*) currentRule, EVENT_CH, *nonTermID_out, &qnameID);
					if(tmp_err_code != ERR_OK)
						return tmp_err_code;
				}
			}

			tmp_err_code = decodeEventContent(strm, prodHit, handler, nonTermID_out, currentRule, app_data);
			if(tmp_err_code != ERR_OK)
				return tmp_err_code;
		break;
	}

	return ERR_OK;
}