#include "mystring.h"

#include "trace.h"

#include <ctype.h>

#include <string.h>

void mystring::dupnil()

{

  trace("");

  rep = &nil;

  rep->attach();

}

void mystring::assign(const char* in)

{

  if(in)

    assign(in, strlen(in));

  else {

    mystringrep* tmp = rep;

    dupnil();

    tmp->detach();

  }

}

void mystring::assign(const char* in, size_t len)

{

  trace("in='" << in << "'");

  if(in != rep->buf) {

    mystringrep* tmp = rep;

    dup(in, len);

    tmp->detach();

  }

}

void mystring::dup(const char* in, size_t len)

{

  trace("in='" << in << "'");

  rep = mystringrep::dup(in, len);

  rep->attach();

}

void mystring::dup(const char* in)

{

  if(in)

    dup(in, strlen(in));

  else

    dupnil();

}

void mystring::operator=(const mystringjoin& in)

{

  mystringrep* tmp = rep;

  rep = in.traverse();

  rep->attach();

  tmp->detach();

}