Allow multi-level classdef package. * lex.h (octave_base_lexer::fq_identifier_contains_keyword, octave_base_lexer::handle_fq_identifier, octave_base_lexer::enable_fq_identifier): New methods. * lex.ll (octave_base_lexer::fq_identifier_contains_keyword, octave_base_lexer::handle_fq_identifier, octave_base_lexer::enable_fq_identifier): Likewise. (FQ_IDENT_START, FQIDENT): New exclusive start condition and regex to handle fully-qualified identifier. (superclass reference rule, metaclass query rule): Use FQIDENT. (octave_base_lexer::handle_superclass_identifier, octave_base_lexer::handle_meta_identifier): Don't split package name. * parse.h (octave_base_parser::make_superclass_ref, octave_base_parser::make_meta_class_query): Remove package_nm argument. * pt-classdef.h (tree_classdef_superclass::id, tree_classdef_superclass::pkg): Removed members, replaced by cls_name. (tree_classdef_superclass::~tree_classdef_superclass): Remove deletion of removed members. (tree_classdef_superclass::cls_name): New member. (tree_classdef_superclass::tree_classdef_superclass): Initialize it. (tree_classdef_superclass::ident, tree_classdef_superclass::package): Removed methods. (tree_classdef_superclass::class_name): New method. * token.h (token::meta_name_token): Remove enum value. (token(int, std::string, std::string, std::string, int, int)): Remove constructor. (token::superclass_package_name, token::meta_package_name, token::meta_class_name): Remove methods. (token::sc::package_nm, token::mc): Remove union members. * token.cc (token(int, std::string, std::string, std::string, int, int)): Remove constructor. (token::~token): Remove case of meta_name_token. (token::superclass_package_name, token::meta_package_name, token::meta_class_name): Remove methods. * oct-parse.in.yy (FQ_IDENT): New terminal. (superclass_identifier): Adapt to changes in class token and class octave_base_parser. (meta_identifier): Likewise. (superclass_list): Add mid-rule to enable fully-qualified identifier. (superclass): Use FQ_IDENT. (octave_base_parser::make_superclass_ref, octave_base_parser::make_meta_class_query): Remove package_nm argument. * ov-classdef.cc (octave_classdef_superclass_ref::do_multi_index_op): Adapt to removal of package_nm argument. (F__meta_class_query__): Likewise. (cdef_class::make_meta_class): Adapt to changes in class tree_classdef_superclass.

/*

Copyright (C) 1993-2013 John W. Eaton

This file is part of Octave.

Octave is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 3 of the License, or (at your
option) any later version.

Octave is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
for more details.

You should have received a copy of the GNU General Public License
along with Octave; see the file COPYING.  If not, see
<http://www.gnu.org/licenses/>.

*/

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <iostream>

#include "error.h"
#include "oct-obj.h"
#include "pager.h"
#include "pt-const.h"
#include "pt-walk.h"

// We are likely to have a lot of tree_constant objects to allocate,
// so make the grow_size large.
DEFINE_OCTAVE_ALLOCATOR2 (tree_constant, 1024);

void
tree_constant::print (std::ostream& os, bool pr_as_read_syntax,
                      bool pr_orig_text)
{
  if (pr_orig_text && ! orig_text.empty ())
    os << orig_text;
  else
    val.print (os, pr_as_read_syntax);
}

void
tree_constant::print_raw (std::ostream& os, bool pr_as_read_syntax,
                          bool pr_orig_text)
{
  if (pr_orig_text && ! orig_text.empty ())
    os << orig_text;
  else
    val.print_raw (os, pr_as_read_syntax);
}

octave_value_list
tree_constant::rvalue (int nargout)
{
  octave_value_list retval;

  if (nargout > 1)
    error ("invalid number of output arguments for constant expression");
  else
    retval = rvalue1 (nargout);

  return retval;
}

tree_expression *
tree_constant::dup (symbol_table::scope_id,
                    symbol_table::context_id) const
{
  tree_constant *new_tc
    = new tree_constant (val, orig_text, line (), column ());

  new_tc->copy_base (*this);

  return new_tc;
}

void
tree_constant::accept (tree_walker& tw)
{
  tw.visit_constant (*this);
}