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tetex-bin  3.0
trace_tries.c
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00001 /****************************************************************************
00002  * Copyright (c) 1999,2000,2001 Free Software Foundation, Inc.              *
00003  *                                                                          *
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00005  * copy of this software and associated documentation files (the            *
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00010  * furnished to do so, subject to the following conditions:                 *
00011  *                                                                          *
00012  * The above copyright notice and this permission notice shall be included  *
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00014  *                                                                          *
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00028 
00029 /****************************************************************************
00030  *  Author: Thomas E. Dickey <dickey@clark.net> 1999                        *
00031  ****************************************************************************/
00032 /*
00033  *     trace_tries.c - Tracing/Debugging buffers (keycode tries-trees)
00034  */
00035 
00036 #include <curses.priv.h>
00037 
00038 MODULE_ID("$Id: trace_tries.c,v 1.10 2001/10/20 22:42:51 tom Exp $")
00039 
00040 #ifdef TRACE
00041 static unsigned char *buffer;
00042 static unsigned len;
00043 
00044 static void
00045 recur_tries(struct tries *tree, unsigned level)
00046 {
00047     if (level > len)
00048        buffer = (unsigned char *) realloc(buffer, len = (level + 1) * 4);
00049 
00050     while (tree != 0) {
00051        if ((buffer[level] = tree->ch) == 0)
00052            buffer[level] = 128;
00053        buffer[level + 1] = 0;
00054        if (tree->value != 0) {
00055            _tracef("%5d: %s (%s)", tree->value,
00056                   _nc_visbuf((char *) buffer), keyname(tree->value));
00057        }
00058        if (tree->child)
00059            recur_tries(tree->child, level + 1);
00060        tree = tree->sibling;
00061     }
00062 }
00063 
00064 NCURSES_EXPORT(void)
00065 _nc_trace_tries(struct tries *tree)
00066 {
00067     buffer = typeMalloc(unsigned char, len = 80);
00068     _tracef("BEGIN tries %p", tree);
00069     recur_tries(tree, 0);
00070     _tracef(". . . tries %p", tree);
00071     free(buffer);
00072 }
00073 
00074 #else
00075 empty_module(_nc_trace_tries)
00076 #endif