// UnderC Development Project, 2001
// A simplified standard string class

#ifndef __STRING_
#define __STRING_

#ifndef __UNDERC__
# define EXPORT __declspec(dllexport)
#else
# include <iostream>
# define NULL 0
namespace std {
# define EXPORT
# pragma dlink string_imp.dll
#endif

class EXPORT string {
protected:
 char *m_str;
 unsigned int m_len;
public:
 typedef unsigned long size_type;
 typedef char *iterator;
 typedef const char *const_iterator;
 enum { npos = 0xFFFFFFFF };

 char *c_str() const { return m_str; }
 size_type  length() const { return m_len; }
 size_type  size()   const { return m_len; }
 bool       empty()  const { return m_len == 0; }
 // *hack 0.9.5 These aren't really const methods (but!)
 iterator begin() const { return m_str; }
 iterator end() const  { return m_str + m_len; }

 void resize(size_type sz); 
 void append(char *s);
 void push_back(char ch);
 void copy(char *str);
 string(const char *str); 
 string(const char *str, int sz);
 string();
 string(size_type sz, char ch);
 string(const string& s);
 string& operator= (const string& s);
 string& operator= (char *str);
 string& operator+= (char *str);
 string& operator+= (const string& s);
 string& operator+= (char ch);
 ~string();
 size_type find(char *str) const;
 size_type find(const string& s) const;
 size_type find(char ch) const;
 size_type rfind(char ch) const;
 size_type bound(size_type n) const;
 string substr(size_type start, size_type n = npos) const;
 string& replace(size_type is, size_type n, char *repl);
 string& replace(size_type is, size_type n, const string& repl);
 void insert(size_type idx, const string& repl);
 char& operator[] (size_type i);
 #ifndef __UNDERC__
 char operator[] (size_type i) const;
 #endif  

 int compare(const string& s) const;
 int compare(const char*   s) const;

// *hack 0.9.7 used to be non-member, but that won't work for now!
 bool operator== (const string& s2) const;
// *add 1.2.8
 bool operator== (const char* c1) const;
};

#ifdef __UNDERC__
} // namespace std
#define _string std::string
#else
#define _string string
#endif

//*SJD* Currently we aren't doing overloading with functions which
// span different namespaces.  So putting operator+ in std would 
// mean being unable to overload it for any other type.
EXPORT bool operator != (const _string& s1, const _string& s2);
EXPORT bool operator != (const string& s1, const char* c1);
EXPORT bool operator> (const _string& s1, const _string& s2);
EXPORT bool operator< (const _string& s1, const _string& s2);
EXPORT _string operator+ (const _string& s1, const _string& s2);
EXPORT _string operator+ (const _string& s1, char *str2);

#ifdef __UNDERC__
#pragma dlink

const int MAX_LINE = 512;

std::ostream& operator<< (std::ostream& os, const std::string& s)
{
  os << s.c_str();
  return os;
}

std::istream& operator>> (std::istream& is, std::string& s)
{ char buff[MAX_LINE]; 
  is >> buff;
  s = buff; 
  return is;
}

std::istream& getline(std::istream& is, std::string& s)
 { 
   char buff[MAX_LINE];
   is.getline(buff,MAX_LINE);
   s = buff;
   return is;
 }
#endif

#endif