view libinterp/parse-tree/pt-cmd.cc @ 20624:7c0e10f035bd

Extend parser to accept binary constants that begin with '0b' or '0B'. * NEWS: Announce change: * lex.ll: Define NUMBIN to be 0[bB] followed by 0,1, or '_'. Define NUMBER to be NUMREAL|NUMHEX|NUMBIN. *lex.ll (looks_like_bin): New function to detect 0[bB] prefix. *lex.ll (handle_numbe): Call looks_like_bin() and if found then convert binary string to double. * parser.tst: Add tests for new behavior.
author Rik <rik@octave.org>
date Fri, 09 Oct 2015 18:52:58 -0700
parents 4197fc428c7d
children
line wrap: on
line source

/*

Copyright (C) 1994-2015 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 "pt-cmd.h"
#include "pt-walk.h"

// No-op.

tree_command *
tree_no_op_command::dup (symbol_table::scope_id,
                         symbol_table::context_id) const
{
  return new tree_no_op_command (orig_cmd, is_end_of_file (),
                                 line (), column ());
}

void
tree_no_op_command::accept (tree_walker& tw)
{
  tw.visit_no_op_command (*this);
}

// Function definition.

tree_command *
tree_function_def::dup (symbol_table::scope_id,
                        symbol_table::context_id) const
{
  return new tree_function_def (fcn, line (), column ());
}

void
tree_function_def::accept (tree_walker& tw)
{
  tw.visit_function_def (*this);
}