new trunk (base for 1.5)

windows build only

CppParser/src/AttributesParser.cpp

@@ -0,0 +1,169 @@
+//
+// AttributesParser.cpp
+//
+// $Id: //poco/1.3/CppParser/src/AttributesParser.cpp#1 $
+//
+// Library: CppParser
+// Package: Attributes
+// Module:  AttributesParser
+//
+// Copyright (c) 2006, Applied Informatics Software Engineering GmbH.
+// and Contributors.
+//
+// Permission is hereby granted, free of charge, to any person or organization
+// obtaining a copy of the software and accompanying documentation covered by
+// this license (the "Software") to use, reproduce, display, distribute,
+// execute, and transmit the Software, and to prepare derivative works of the
+// Software, and to permit third-parties to whom the Software is furnished to
+// do so, all subject to the following:
+// 
+// The copyright notices in the Software and this entire statement, including
+// the above license grant, this restriction and the following disclaimer,
+// must be included in all copies of the Software, in whole or in part, and
+// all derivative works of the Software, unless such copies or derivative
+// works are solely in the form of machine-executable object code generated by
+// a source language processor.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
+// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
+// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
+// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+// DEALINGS IN THE SOFTWARE.
+//
+
+
+#include "Poco/CppParser/AttributesParser.h"
+#include "Poco/CppParser/CppToken.h"
+#include "Poco/Exception.h"
+
+
+using Poco::Token;
+using Poco::SyntaxException;
+
+
+namespace Poco {
+namespace CppParser {
+
+
+AttributesParser::AttributesParser(Attributes& attrs, std::istream& istr):
+	_attrs(attrs),
+	_tokenizer(istr)
+{
+}
+
+
+AttributesParser::~AttributesParser()
+{
+}
+
+
+void AttributesParser::parse()
+{
+	const Token* pNext = next();
+	if (!isEOF(pNext))
+	{
+		pNext = parseAttributes(pNext);
+	}
+	if (!isEOF(pNext))
+		throw Poco::SyntaxException("extra tokens found in attribute declaration");
+}
+
+
+const Token* AttributesParser::parseAttributes(const Token* pNext)
+{
+	pNext = parseAttribute(pNext);
+	while (isOperator(pNext, OperatorToken::OP_COMMA) || isIdentifier(pNext))
+	{
+		if (!isIdentifier(pNext)) pNext = next();
+		pNext = parseAttribute(pNext);
+	}
+	return pNext;
+}
+
+
+const Token* AttributesParser::parseAttribute(const Token* pNext)
+{
+	std::string id;
+	std::string value;
+	pNext = parseIdentifier(pNext, id);
+	if (isOperator(pNext, OperatorToken::OP_ASSIGN))
+	{
+		pNext = next();
+		if (isOperator(pNext, OperatorToken::OP_OPENBRACE))
+		{
+			pNext = parseComplexAttribute(pNext, id);
+		}
+		else if (isIdentifier(pNext) || isLiteral(pNext))
+		{
+			value = pNext->asString();
+			pNext = next();
+		}
+		else throw SyntaxException("bad attribute declaration");
+	}
+	setAttribute(id, value);
+	return pNext;
+}
+
+
+const Token* AttributesParser::parseComplexAttribute(const Token* pNext, const std::string& id)
+{
+	poco_assert_dbg (isOperator(pNext, OperatorToken::OP_OPENBRACE));
+	
+	pNext = next();
+	std::string oldId(_id);
+	if (!_id.empty())
+	{
+		_id.append(".");
+		_id.append(id);
+	}
+	else _id = id;
+	pNext = parseAttributes(pNext);
+	_id = oldId;
+	if (isOperator(pNext, OperatorToken::OP_CLOSBRACE))
+		pNext = next();
+	else
+		throw SyntaxException("bad attribute declaration");
+	
+	return pNext;
+}
+
+
+const Token* AttributesParser::parseIdentifier(const Token* pNext, std::string& id)
+{
+	if (isIdentifier(pNext))
+	{
+		id = pNext->asString();
+		pNext = next();
+		while (isOperator(pNext, OperatorToken::OP_PERIOD))
+		{
+			id.append(".");
+			pNext = next();
+			if (isIdentifier(pNext))
+			{
+				id.append(pNext->asString());
+				pNext = next();
+			}
+			else throw SyntaxException("identifier expected");
+		}
+		return pNext;
+	}
+	else throw SyntaxException("identifier expected");
+}
+
+
+void AttributesParser::setAttribute(const std::string& name, const std::string& value)
+{
+	std::string n;
+	if (!_id.empty())
+	{
+		n.append(_id);
+		n.append(".");
+	}
+	n.append(name);
+	_attrs.set(n, value);
+}
+
+
+} } // namespace Poco::CppParser