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tree-base.cc
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1996-09-28
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81 lines
// tree-base.cc -*- C++ -*-
/*
Copyright (C) 1992, 1993, 1994, 1995 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, 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <iostream.h>
#include <assert.h>
#include "tree-base.h"
// Current indentation.
int tree_print_code::curr_print_indent_level = 0;
// Nonzero means we are at the beginning of a line.
int tree_print_code::beginning_of_line = 1;
// All print_code() functions should use this to print new lines.
void
tree_print_code::print_code_new_line (ostream& os)
{
os << "\n";
beginning_of_line = 1;
}
// Each print_code() function should call this before printing
// anything.
//
// This doesn't need to be fast, but isn't there a better way?
void
tree_print_code::print_code_indent (ostream& os)
{
assert (curr_print_indent_level >= 0);
if (beginning_of_line)
{
os.form ("%*s", curr_print_indent_level, "");
beginning_of_line = 0;
}
}
// For ressetting print_code state.
void
tree_print_code::print_code_reset (void)
{
beginning_of_line = 1;
curr_print_indent_level = 0;
}
/*
;;; Local Variables: ***
;;; mode: C++ ***
;;; page-delimiter: "^/\\*" ***
;;; End: ***
*/