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pt-const.cc
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1996-11-19
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/*
Copyright (C) 1996 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 2, 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, write to the Free
Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#if defined (__GNUG__)
#pragma implementation
#endif
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <cctype>
#include <cstring>
#include <string>
#include <fstream.h>
#include <iostream.h>
#include <SLList.h>
#include "Array-flags.h"
#include "mx-base.h"
#include "Range.h"
#include "str-vec.h"
#include "defun.h"
#include "error.h"
#include "gripes.h"
#include "idx-vector.h"
#include "mappers.h"
#include "oct-map.h"
#include "oct-obj.h"
#include "pager.h"
#include "pr-output.h"
#include "sysdep.h"
#include "pt-const.h"
#include "pt-walk.h"
#include "unwind-prot.h"
#include "utils.h"
#include "variables.h"
// We are likely to have a lot of tree_constant objects to allocate,
// so make the grow_size large.
octave_allocator
tree_constant::allocator (sizeof (tree_constant), 1024);
Octave_map
tree_constant::map_value (void) const
{
return val.map_value ();
}
void
tree_constant::print (void)
{
}
void
tree_constant::print (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);
}
octave_value
tree_constant::eval (bool print_result)
{
if (print_result)
val.print ();
return val;
}
octave_value_list
tree_constant::eval (bool, int, const octave_value_list& idx)
{
octave_value_list retval;
if (idx.length () > 0)
retval (0) = index (idx);
else
retval (0) = val;
return retval;
}
octave_value
tree_constant::lookup_map_element (const string&, bool, bool)
{
octave_value retval;
error ("tree_constant::lookup_map_element() not implemented");
return retval;
}
octave_value
tree_constant::lookup_map_element (SLList<string>&, bool, bool)
{
octave_value retval;
error ("tree_constant::lookup_map_element() not implemented");
return retval;
}
void
tree_constant::stash_original_text (const string& s)
{
orig_text = s;
}
string
tree_constant::original_text (void) const
{
return orig_text;
}
void
tree_constant::accept (tree_walker& tw)
{
tw.visit_constant (*this);
}
/*
;;; Local Variables: ***
;;; mode: C++ ***
;;; End: ***
*/