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#!/usr/bin/perl -w
# $Id: tracemunch,v 1.6 2005/03/12 21:48:23 tom Exp $
##############################################################################
# Copyright (c) 1998-2002,2005 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 MERCHANTABILITY,   #
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL    #
# THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER      #
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING    #
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER        #
# DEALINGS IN THE SOFTWARE.                                                  #
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# Except as contained in this notice, the name(s) of the above copyright     #
# holders shall not be used in advertising or otherwise to promote the sale, #
# use or other dealings in this Software without prior written               #
# authorization.                                                             #
##############################################################################
# tracemunch -- compactify ncurses trace logs
#
# The error logs produced by ncurses with tracing enabled can be very tedious
# to wade through.  This script helps by compacting runs of log lines that
# can be conveniently expressed as higher-level operations.
use strict;

our $putattr="PutAttrChar\\({{ '(.)' = 0[0-7]+ }}\\) at \\(([0-9]+), ([0-9]+)\\)";
our $waddnstr="waddnstr\\(0x([0-9a-f]+),\"([^\"]+)\",[0-9]+\\) called {A_NORMAL}";

our $win_nums=0;
our $curscr="";
our $newscr="";
our $stdscr="";
our @win_addr;

sub transaddr
{
    my $n;
    my $arg = $_[0];

    $arg =~ s/$curscr/curscr/g if ($curscr);
    $arg =~ s/$newscr/newscr/g if ($newscr);
    $arg =~ s/$stdscr/stdscr/g if ($stdscr);
    for $n (0..$#win_addr) {
	$arg =~ s/$win_addr[$n]/window$n/g if $win_addr[$n];
    }

    return $arg;
}

while (<STDIN>)
{
	my $addr;
	my $n;
	my $awaiting;

CLASSIFY: {
	# Transform window pointer addresses so it's easier to compare logs
	$awaiting = "curscr" if ($_ =~ /creating curscr/);
	$awaiting = "newscr" if ($_ =~ /creating newscr/);
	$awaiting = "stdscr" if ($_ =~ /creating stdscr/);
	if ($_ =~ /^create :window 0x([0-9a-f]+)/) {
	    $addr = "0x$1";
	    if ($awaiting eq "curscr") {
		$curscr = $addr;
	    } elsif ($awaiting eq "newscr") {
		$newscr = $addr;
	    } elsif ($awaiting eq "stdscr") {
		$stdscr = $addr;
	    } else {
		$win_addr[$win_nums] = $addr;
		$win_nums = $win_nums + 1;
	    }
	    $awaiting = "";
	} elsif ($_ =~ /^\.\.\.deleted win=0x([0-9a-f]+)/) {
	    $addr = "0x$1";
	    $_ = &transaddr($_);
	    if ($addr eq $curscr) {
		$curscr = "";
	    } elsif ($addr eq $newscr) {
		$newscr = "";
	    } elsif ($addr eq $stdscr) {
		$stdscr = "";
	    } else {
		for $n (0..$#win_addr) {
		    if ($win_addr[$n] eq $addr) {
			$win_addr[$n] = "";
		    }
		}
	    }
	}

	# Compactify runs of PutAttrChar calls (TR_CHARPUT)
	if ($_ =~ /$putattr/)
	{
		my $putattr_chars = $1;
		my $starty = $2;
		my $startx = $3;
		while (<STDIN>)
		{
			if ($_ =~ /$putattr/) {
				$putattr_chars .= $1;
			} else {
				last;
			}
		}
		print "RUN of PutAttrChar()s: \"$putattr_chars\" from ${starty}, ${startx}\n";
		redo CLASSIFY;
	}

	# Compactify runs of waddnstr calls (TR_CALLS)
	if ($_ =~ /$waddnstr/)
	{
		my $waddnstr_chars = $2;
		my $winaddr = $1;
		while (<STDIN>)
		{
			if ($_ =~ /$waddnstr/ && $1 eq $winaddr) {
				$waddnstr_chars .= $2;
			} else {
				last;
			}
		}
		my $winaddstr = &transaddr($winaddr);
		print "RUN of waddnstr()s: $winaddr, \"$waddnstr_chars\"\n";
		redo CLASSIFY;
	}

	# More transformations can go here

	# Repeated runs of anything
	my $anyline = &transaddr($_);
	my $repeatcount = 1;
	while (<STDIN>) {
	    if (&transaddr($_) eq $anyline) {
		$repeatcount++;
	    } else {
		last;
	    }
	}
	if ($repeatcount > 1) {
		print "${repeatcount} REPEATS OF $anyline";
	} else {
		print $anyline
	}
	redo CLASSIFY if $_;

	} # :CLASSIFY
}

# tracemunch ends here

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