/* $OpenBSD: trace_tries.c,v 1.5 2010/01/12 23:22:07 nicm Exp $ */

/****************************************************************************
 * Copyright (c) 1999-2007,2008 Free Software Foundation, Inc.              *
 *                                                                          *
 * Permission is hereby granted, free of charge, to any person obtaining a  *
 * copy of this software and associated documentation files (the            *
 * "Software"), to deal in the Software without restriction, including      *
 * without limitation the rights to use, copy, modify, merge, publish,      *
 * distribute, distribute with modifications, sublicense, and/or sell       *
 * copies of the Software, and to permit persons to whom the Software is    *
 * furnished to do so, subject to the following conditions:                 *
 *                                                                          *
 * The above copyright notice and this permission notice shall be included  *
 * in all copies or substantial portions of the Software.                   *
 *                                                                          *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
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 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
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 ****************************************************************************/

/****************************************************************************
 *  Author: Thomas E. Dickey <dickey@clark.net> 1999                        *
 ****************************************************************************/
/*
 *	trace_tries.c - Tracing/Debugging buffers (keycode tries-trees)
 */

#include <curses.priv.h>

MODULE_ID("$Id: trace_tries.c,v 1.5 2010/01/12 23:22:07 nicm Exp $")

#ifdef TRACE
#define my_buffer _nc_globals.tracetry_buf
#define my_length _nc_globals.tracetry_used

static void
recur_tries(TRIES * tree, unsigned level)
{
    if (level > my_length) {
	my_length = (level + 1) * 4;
	my_buffer = (unsigned char *) realloc(my_buffer, my_length);
    }

    while (tree != 0) {
	if ((my_buffer[level] = tree->ch) == 0)
	    my_buffer[level] = 128;
	my_buffer[level + 1] = 0;
	if (tree->value != 0) {
	    _tracef("%5d: %s (%s)", tree->value,
		    _nc_visbuf((char *) my_buffer), keyname(tree->value));
	}
	if (tree->child)
	    recur_tries(tree->child, level + 1);
	tree = tree->sibling;
    }
}

NCURSES_EXPORT(void)
_nc_trace_tries(TRIES * tree)
{
    my_buffer = typeMalloc(unsigned char, my_length = 80);
    _tracef("BEGIN tries %p", tree);
    recur_tries(tree, 0);
    _tracef(". . . tries %p", tree);
    free(my_buffer);
}

#else
NCURSES_EXPORT(void)
_nc_trace_tries(TRIES * tree)
{
}
#endif