path: root/TAO/TAO_IDL/util/utl_identifier.cpp

/*

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This product is protected by copyright and distributed under the following
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The Interface Definition Language Compiler Front End (CFE) is made
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this product is incorporated in whole or part. You may copy and extend
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*/

#include "utl_identifier.h"
#include "global_extern.h"
#include "utl_err.h"
#include "utl_string.h"
#include "fe_private.h"

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

Identifier::Identifier (void)
  : pv_string (0),
    escaped_ (false)
{
}

Identifier::Identifier (const char *s)
  : pv_string (0),
    escaped_ (false)
{
  preprocess_and_replace_string (s);
}

Identifier::Identifier (const Identifier &other)
  : pv_string (0),
    escaped_ (other.escaped ())
{
  replace_string (other.get_string ());
}

Identifier::~Identifier (void)
{
  if (this->pv_string != 0)
    {
      ACE::strdelete (this->pv_string);
    }
}

// Operations.

char *
Identifier::get_string (void)
{
  return this->pv_string;
}

const char *
Identifier::get_string (void) const
{
  return this->pv_string;
}

void
Identifier::replace_string (const char * s)
{
  if (pv_string)
    {
      delete [] this->pv_string;
    }
  this->pv_string = s ? ACE::strnew (s) : 0;
}

void
Identifier::preprocess_and_replace_string (const char * s)
{
  bool shift = false;

  if (*s == '_')
    {
      // Only one leading underscore is allowed.
      if (s[1] == '_')
        {
          idl_global->err ()->error0 (UTL_Error::EIDL_UNDERSCORE);
        }

      shift = true;
      this->escaped_ = true;
      ACE_CString str (s);
      const char *c_prefix = "_cxx_";

      if (str.find ("_tc_") == 0
          || str.find ("_tao_") == 0)
        {
          shift = false;
        }
      else if (str.find (c_prefix) == 0)
        {
          str = str.substr (ACE_OS::strlen (c_prefix));
          const char *eh_suffix = "_excep";
          ACE_CString::size_type pos =
            str.length () - ACE_OS::strlen (eh_suffix);

          // If we have an AMI exception holder suffix, strip it off.
          if (str.find (eh_suffix) == pos)
            {
              str = str.substr (0, pos);
            }

          TAO_IDL_CPP_Keyword_Table cpp_key_tbl;
          unsigned int len =
            static_cast<unsigned int> (str.length ());
          const TAO_IDL_CPP_Keyword_Entry *entry =
            cpp_key_tbl.lookup (str.c_str (), len);

          if (entry != 0)
            {
              shift = false;
            }
        }
    }

  replace_string (shift ? s + 1 : s);
}

// Compare two Identifier *
bool
Identifier::compare (Identifier *o)
{
  if (!o ||
      !o->pv_string ||
      !this->pv_string ||
      this->escaped_ ^ o->escaped_)
    {
      return false;
    }

  return !ACE_OS::strcmp (this->pv_string, o->pv_string);
}

// Report the appropriate error if the two identifiers differ only in case.
bool
Identifier::case_compare (Identifier *o)
{
  return UTL_String::compare (this->pv_string, o->pv_string);
}

// Report no error if the two identifiers differ only in case.
bool
Identifier::case_compare_quiet (Identifier *o)
{
  return UTL_String::compare_quiet (this->pv_string, o->pv_string);
}

Identifier *
Identifier::copy (void)
{
  Identifier *retval = 0;
  ACE_NEW_RETURN (retval,
                  Identifier (this->pv_string),
                  0);

  retval->escaped_ = this->escaped_;

  return retval;
}

bool
Identifier::escaped (void) const
{
  return this->escaped_;
}

// Dumping.
void
Identifier::dump (ACE_OSTREAM_TYPE &o)
{
  if (this->pv_string == 0)
    {
      return;
    }

  /*
   * Annotation ids are prefixed with '@' to effectively create an alternative
   * namespace for them. This hides that hack from dumping.
   */
  o << ((pv_string[0] == '@') ? pv_string + 1 : pv_string);
}

void
Identifier::destroy (void)
{
}

bool
Identifier::operator== (const Identifier &other) const
{
  return !ACE_OS::strcmp (pv_string, other.get_string ());
}