// utl_string.cpp,v 1.31 2006/06/29 10:32:11 jwillemsen Exp

/*

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*/

#include "utl_string.h"
#include "global_extern.h"
#include "fe_extern.h"
#include "utl_err.h"

// FUZZ: disable check_for_streams_include
#include "ace/streams.h"

#include "ace/OS_NS_ctype.h"

ACE_RCSID (util,
           utl_string,
           "utl_string.cpp,v 1.31 2006/06/29 10:32:11 jwillemsen Exp")

UTL_String::UTL_String (void)
  : p_str (0),
    c_str (0),
    len (0)
{
}

UTL_String::UTL_String (const char *str)
{
  if (str == 0)
    {
      this->len = 0;
      this->p_str = 0;
      this->c_str = 0;
    }
  else
    {
      this->len = ACE_OS::strlen (str);
      this->p_str = ACE::strnew (str);
      this->c_str = (char *) ACE_OS::malloc (this->len + 1);
      this->canonicalize ();
    }
}

UTL_String::UTL_String (UTL_String *s)
{
  if (s == 0)
    {
     this->p_str = 0;
     this->c_str = 0;
     this->len = 0;
    }
  else
    {
      char *b = s->get_string ();

      if (b == 0)
        {
          this->p_str = 0;
          this->c_str = 0;
          this->len = 0;
        }
      else
        {
          this->len = ACE_OS::strlen (b);
          this->p_str = ACE::strnew (b);
          this->c_str = (char *) ACE_OS::malloc (this->len + 1);
          this->canonicalize ();
        }
    }
}

UTL_String::~UTL_String (void)
{
}

// Compute a canonical form for this string. This is (implemented as)
// a corresponding string with all upper case characters where the
// original has lower case characters, identical characters otherwise.
void
UTL_String::canonicalize (void)
{
  for (size_t i = 0; i < this->len; ++i)
    {
      if (ACE_OS::ace_isalpha (this->p_str[i]))
        {
          this->c_str[i] = (char) ACE_OS::ace_toupper (this->p_str[i]);
        }
      else
        {
          this->c_str[i] = this->p_str[i];
        }
    }

  c_str[this->len] = '\0';
}

// Compare two UTL_String *.
bool
UTL_String::compare (UTL_String *s)
{
  char *s_c_str = 0;
  bool result;

  if (this->c_str == 0
      || s == 0
      || (s_c_str = s->get_canonical_rep ()) == 0)
    {
      result = false;
    }
  else
    {
      result =
        (ACE_OS::strcmp (this->c_str, s_c_str) == 0) ? true : false;
    }

  // Check that the names are typed consistently.
  if (result == true
      && ACE_OS::strcmp (this->p_str, s->get_string ()) != 0)
    {
      // Prevents redundant error reporting if we're in this branch.
      result = false;

      if (idl_global->case_diff_error ())
        {
          idl_global->err ()->name_case_error (this->p_str,
                                               s->get_string ());

            // If we try to continue from here, we risk a crash.
            throw FE_Bailout ();
        }
      else
        {
          idl_global->err ()->name_case_warning (this->p_str,
                                                 s->get_string ());
        }
    }

  return result;
}

bool
UTL_String::compare_quiet (UTL_String *s)
{
  char *s_c_str = 0;
  bool result;

  if (this->c_str == 0
      || s == 0
      || (s_c_str = s->get_canonical_rep ()) == 0)
    {
      result = false;
    }
  else if (ACE_OS::strcmp (this->c_str, s_c_str) != 0)
    {
      result = false;
    }
  else if (ACE_OS::strcmp (this->p_str, s->get_string ()) != 0)
    {
      result = true;
    }
  else
    {
      result = false;
    }

  return result;
}

void
UTL_String::destroy (void)
{
  if (this->p_str != 0)
    {
      ACE::strdelete (this->p_str);
      this->p_str = 0;
    }

  if (this->c_str != 0)
    {
      ACE_OS::free (this->c_str);
      this->c_str = 0;
    }
}

// Get the char * from a String.
char *
UTL_String::get_string (void)
{
  return this->p_str;
}

// Get the canonical representation from a String.
char *
UTL_String::get_canonical_rep (void)
{
  if (this->c_str == 0)
    {
      this->c_str = (char *) ACE_OS::malloc (this->len + 1);
      this->canonicalize ();
    }

  return this->c_str;
}

// AST Dumping.
void
UTL_String::dump (ACE_OSTREAM_TYPE &o)
{
  o << this->p_str;
}
