StringUtil.hh

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/*
 * StringUtil.hh
 *
 * Copyright 2002, Log4cpp Project. All rights reserved.
 *
 * See the COPYING file for the terms of usage and distribution.
 */

#ifndef _LOG4CPP_STRINGUTIL_HH
#define _LOG4CPP_STRINGUTIL_HH

#include "PortabilityImpl.hh"
#include <string>
#include <vector>
#include <climits>
#include <stdarg.h>

namespace log4cpp {

    class StringUtil {
        public:

        static std::string vform(const char* format, va_list args);

        static std::string trim(const std::string& s);

        static unsigned int split(std::vector<std::string>& v, 
                                  const std::string& s, char delimiter,
                                  unsigned int maxSegments = INT_MAX);
        template<typename T> static unsigned int split(T& output,
                const std::string& s, char delimiter,
                unsigned int maxSegments = INT_MAX) {
            std::string::size_type left = 0;
            unsigned int i;
            for(i = 1; i < maxSegments; i++) {
                std::string::size_type right = s.find(delimiter, left);
                if (right == std::string::npos) {
                    break;
                }
                *output++ = s.substr(left, right - left);
                left = right + 1;
            }
            
            *output++ = s.substr(left);
            return i;
        }
    };
}

#endif // _LOG4CPP_STRINGUTIL_HH