patternparser.h

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */


#ifndef _LOG4CXX_HELPER_PATTERN_CONVERTER_H
#define _LOG4CXX_HELPER_PATTERN_CONVERTER_H

#if defined(_MSC_VER)
    #pragma warning (push)
    #pragma warning ( disable: 4231 4251 4275 4786 )
#endif



#include <map>
#include <vector>
#include <log4cxx/helpers/class.h>
#include <log4cxx/pattern/patternconverter.h>
#include <log4cxx/pattern/formattinginfo.h>

namespace log4cxx
{
namespace pattern
{

typedef PatternConverterPtr (*PatternConstructor)(const std::vector<LogString>& options);
typedef std::map<LogString, PatternConstructor> PatternMap;


// Contributors:   Nelson Minar <(nelson@monkey.org>
//                 Igor E. Poteryaev <jah@mail.ru>
//                 Reinhard Deschler <reinhard.deschler@web.de>

class LOG4CXX_EXPORT PatternParser
{
        static const logchar ESCAPE_CHAR;

        enum
        {
            LITERAL_STATE = 0,
            CONVERTER_STATE = 1,
            DOT_STATE = 3,
            MIN_STATE = 4,
            MAX_STATE = 5
        };

        PatternParser();

    private:
        static size_t extractConverter(
            logchar lastChar, const LogString& pattern,
            LogString::size_type i, LogString& convBuf,
            LogString& currentLiteral);

        static size_t extractOptions(const LogString& pattern, LogString::size_type i,
            std::vector<LogString>& options);

    public:
        static void parse(
            const LogString& pattern,
            std::vector<PatternConverterPtr>& patternConverters,
            std::vector<FormattingInfoPtr>& formattingInfos,
            const PatternMap& rules);

    private:
        static PatternConverterPtr createConverter(
            const LogString& converterId,
            LogString& currentLiteral,
            const PatternMap& rules,
            std::vector<LogString>& options);

        static size_t finalizeConverter(
            logchar c, const LogString& pattern, size_t i,
            LogString& currentLiteral, const FormattingInfoPtr& formattingInfo,
            const PatternMap&  rules,
            std::vector<PatternConverterPtr>& patternConverters,
            std::vector<FormattingInfoPtr>&  formattingInfos);

        static bool isUnicodeIdentifierStart(logchar c);
        static bool isUnicodeIdentifierPart(logchar c);


};

}
}


#if defined(_MSC_VER)
    #pragma warning (pop)
#endif


#endif