#ifndef REGEX_REPLACEMENT_HDR
#define REGEX_REPLACEMENT_HDR

#include <string>
#include "concordia/common/config.hpp"
#include "concordia/concordia_exception.hpp"
#include <boost/shared_ptr.hpp>
#include <boost/regex.hpp>
#include <boost/regex/icu.hpp>



typedef boost::error_info<struct my_tag, std::string> my_tag_error_info;

/*!
  Class for representing a regular expression replacement operation.
  Holds regex pattern string for matching and replacement string for
  replacing found matches.

*/
class RegexReplacement {
public:
    /*!
      Constructor.
        \param patternString regex pattern to match
        \param replacement string to substitute the found match
        \param caseSensitive case sensitivity of the pattern
    */
    RegexReplacement(std::string patternString, std::string replacement,
                                              bool caseSensitive = true)
                                               throw(ConcordiaException);

    /*! Destructor.
    */
    virtual ~RegexReplacement();

    /*! Applies the operation on input string.
      \param text the input string
      \returns altered version of the input string
    */
    std::string apply(const std::string & text);

private:
    boost::u32regex _pattern;

    std::string _replacement;
};

#endif