kgsueme/doc/doc2messages_pm.xsl

<!DOCTYPE xsl:stylesheet>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">

<xsl:output method="text" media-type="text/plain" encoding="utf-8"/>

<xsl:template match="/"><![CDATA[
# This is an automatically generated file. 
# This is an automatically generated file. 
# This is an automatically generated file. 
# This is an automatically generated file. 
# This is an automatically generated file. 

# See doc/protocol.xml and doc/doc2messages_pm.xsl (and doc/Makefile)

package KGS::Messages;

use Gtk2::GoBoard::Constants; # for MARK_xyz

use strict;

our %type;

our %dec_client; # decode messages send to server
our %enc_client; # encode messages send to server
our %dec_server; # decode messages received from server
our %enc_server; # encode messages received from server

{

my $data; # stores currently processed decoding/encoding packet

sub _set_data($) { $data = shift } # for debugging or special apps only

# primitive enc/decoders

#############################################################################

sub dec_U8 {
   (my ($r), $data) = unpack "C a*", $data; $r;
}

sub dec_U16 {
   (my ($r), $data) = unpack "v a*", $data; $r;
}

sub dec_U32 {
   (my ($r), $data) = unpack "V a*", $data; $r;
}

sub dec_U64 {
   my ($lo, $hi) = (dec_U32, dec_U32);
   $lo + $hi * 2**32;
}

sub dec_I8 {
   (my ($r), $data) = unpack "c a*", $data;
   $r;
}

sub dec_I16 {
   (my ($r), $data) = unpack "v a*", $data;
   unpack "s", pack "S", $r;
}

sub dec_I32 {
   (my ($r), $data) = unpack "V a*", $data;
   unpack "i", pack "I", $r;
}

sub dec_DATA {
   (my ($r), $data) = ($data, ""); $r;
}

sub dec_ZSTRING {
   $data =~ s/^((?:..)*?)(?:\x00\x00|\Z)//s;
   # use Encode...
   join "", map chr, unpack "v*", $1;
}

BEGIN { *dec_STRING = \&dec_ZSTRING };

sub dec_CONSTANT {
   $_[0];
}

sub dec_password {
   dec_U64;
}

sub dec_HEX { # for debugging
   "HEX: " . unpack "H*", $data;#d#
}

#############################################################################

sub enc_U8 {
   $data .= pack "C", $_[0];
}

sub enc_U16 {
   $data .= pack "v", $_[0];
}

sub enc_U32 {
   $data .= pack "V", $_[0];
}

sub enc_U64 {
   enc_U32 $_[0] & 0xffffffff;
   enc_U32 +($_[0] >> 32) & 0xffffffff;
}

sub enc_I8 {
   $data .= pack "c", $_[0];
}

sub enc_I16 {
   enc_U16 unpack "S", pack "s", $_[0];
}

sub enc_I32 {
   enc_U32 unpack "I", pack "i", $_[0];
}

sub enc_DATA {
   # a dream!
   $data .= $_[0];
}

sub enc_ZSTRING {
   # should use encode for speed and clarity ;)
   $data .= pack "v*", (map ord, split //, $_[0]), 0;
}

sub enc_STRING {
   # should use encode for speed and clarity ;)
   $data .= pack "v*", map ord, split //, $_[0];
}

sub enc_CONSTANT {
   # nop
}

sub enc_password {
   require Math::BigInt; # I insist on 32-bit-perl.. should use C
   # $hash must be 64 bit
   my $hash = new Math::BigInt;
   $hash = $hash * 1055 + ord for split //, $_[0];
   enc_U64 $hash;
}

sub enc_HEX {
   die "enc_HEX not defined for good";
}

]]>

#############################################################################
# types
<xsl:apply-templates select="descendant::type"/>

#############################################################################
# structures
<xsl:apply-templates select="descendant::struct"/>

#############################################################################
# "less" primitive types<![CDATA[

# this was the most horrible thing to decode. still not everything is decoded correctly(?)
sub dec_TREE {
   my @r;
   my $old_data = $data;#d#
   while (length $data) {
      my $type = dec_U8;
      my $add = $type < 128;

      my $ofs = (length $old_data) - (length $data);#d#

      $type &= 127;

      if ($type == 127) {
         dec_U8; # unused?? *sigh*
         push @r, [add_node => dec_I32];

      } elsif ($type == 126) {
         push @r, [set_node => dec_I32];

      } elsif ($type == 125) {
         push @r, [set_current => dec_I32];

      } elsif ($type == 34) {
         push @r, [score => dec_U8, dec_score1000];

      } elsif ($type == 29) {
         push @r, [type_29 => dec_ZSTRING];
         warn "UNKNOWN TREE TYPE 29 $r[-1][1]\007 PLEASE REPORT";#d#
         die;

      } elsif ($type == 28) {
         # move number, only in variations it seems. oh my.
         push @r, [movenum => dec_ZSTRING];

      } elsif ($type == 26) {
         push @r, [type_26 => dec_U8]; # sets a flag (?)
         warn "unknown tree node 26, PLEASE REPORT AND INCLUDE THE GAME\n";

      } elsif ($type == 25) {
         push @r, [result => dec_result];

      } elsif ($type == 23) {
         push @r, [mark => $add, MARK_GRAYED, dec_U8, dec_U8];

      } elsif ($type == 22) {
         push @r, [mark => $add, dec_U8() ? MARK_SMALL_W : MARK_SMALL_B, dec_U8, dec_U8];

      } elsif ($type == 21) {
         push @r, [mark => $add, MARK_SQUARE, dec_U8, dec_U8];

      } elsif ($type == 20) {
         push @r, [mark => $add, MARK_TRIANGLE, dec_U8, dec_U8];

      } elsif ($type == 19) {
         push @r, [mark => $add, MARK_LABEL, dec_U8, dec_U8, dec_ZSTRING];
         #push @r, [unknown_18 => dec_U8, dec_U32, dec_U32, dec_U8, dec_U32, dec_U32, dec_U32];
         #push @r, [set_timer => (dec_U8, dec_U32, dec_time)[0,2,1]];

      } elsif ($type == 18) {
         push @r, [set_timer => (dec_U8, dec_U32, dec_time)[0,2,1]];

      } elsif ($type == 17) {
         push @r, [set_stone => dec_U8, dec_U8, dec_U8];#d#?

#      } elsif ($type == 16) {
#         push @r, [set_stone => dec_U8, dec_U8, dec_U8];#o#

      } elsif ($type == 15) {
         push @r, [mark => $add, MARK_CIRCLE, dec_U8, dec_U8];#d#?

      } elsif ($type == 14) {
         push @r, [move => dec_U8, dec_U8, dec_U8];

      } elsif (($type >= 4 && $type <= 9)
               || ($type >= 11 && $type <= 13)
               || $type == 24) {

         push @r, [({
               4 => "date",
               5 => "unknown_comment5",
               6 => "game_id", #?#
               7 => "unknown_comment7",
               8 => "unknown_comment8",
               9 => "copyright", #?
              11 => "unknown_comment11",
              12 => "unknown_comment12",
              13 => "unknown_comment13",
              24 => "comment",
               })->{$type} => dec_ZSTRING];

      } elsif ($type == 3) {
         push @r, [rank => dec_U8, dec_U32];

      } elsif ($type == 2) {
         push @r, [player => dec_U8, dec_ZSTRING];

      } elsif ($type == 1) {
         push @r, [sgf_name => dec_ZSTRING];

      } elsif ($type == 0) {
         # as usual, wms finds yet another way to duplicate code... oh well, what a mess.
         # (no wonder he is so keen on keeping it a secret...)

         push @r, [rules => dec_rules];

      # OLD

      } else {
         require KGS::Listener::Debug; # hack
         print STDERR KGS::Listener::Debug::dumpval(\@r);
         printf "offset: 0x%04x\n", $ofs;
         open XTYPE, "|xtype"; print XTYPE $old_data; close XTYPE;
         warn "unknown tree type $type, PLEASE REPORT and include the game you wanted to watch. thx.";

      }

      push @{$r[-1]}, offset => sprintf "0x%x", $ofs;#d#
      
   }
#         print STDERR KGS::Listener::Debug::dumpval(\@r);#d#
#            return [];#d#
   \@r;
}

sub enc_TREE {
   for (@{$_[0]}) {
      my ($type, @arg) = @$_;

      if ($type eq "add_node") {
         enc_U8 127;
         enc_U8 0; # unused?
         enc_I32 $arg[0];

      } elsif ($type eq "set_node") {
         enc_U8 126;
         enc_I32 $arg[0];

      } elsif ($type eq "set_current") {
         enc_U8 125;
         enc_I32 $arg[0];

      } elsif ($type eq "movenum") {
         enc_U8 28;
         enc_ZSTRING $arg[0];

      } elsif ($type eq "set_stone") {
         enc_U8 16;
         enc_U8 $arg[0];
         enc_U8 $arg[1];
         enc_U8 $arg[2];

      } elsif ($type eq "move") {
         enc_U8 14;
         enc_U8 $arg[0];
         enc_U8 $arg[1];
         enc_U8 $arg[2];

      } elsif ($type eq "comment") {
         enc_U8 24;
         enc_ZSTRING $arg[0];

      } elsif ($type eq "mark") {
         my $op = ({
                  &MARK_GRAYED   => 23,
                  &MARK_SMALL_B  => 22,
                  &MARK_SMALL_W  => 22,
                  &MARK_CIRCLE   => 21,
                  &MARK_SQUARE   => 20,
                  &MARK_TRIANGLE => 19,
                  &MARK_LABEL    => 18,
                })->{$arg[1]};

         enc_U8 $op + ($arg[0] ? 0 : 128);
         enc_U8 $arg[1] == MARK_SMALL_W if $op == 22;
         enc_U8 $arg[2];
         enc_U8 $arg[3];

         enc_ZSTRING $arg[4] if $op == 18;

      # unknown types
      } elsif ($type eq "type_29") {
         enc_U8 29;
         enc_ZSTRING $arg[0];
      } elsif ($type eq "type_26") {
         enc_U8 26;
         enc_U8 $arg[0];

      } else {
         warn "unable to encode tree node type $type\n";
      }
   }
};

]]>

#############################################################################
# messages
<xsl:apply-templates select="descendant::message"/>
}

1;
</xsl:template>

<xsl:template match="type[@type = 'S']">
sub dec_<xsl:value-of select="@name"/> {
   my $res = "";
   my @r = unpack "v<xsl:value-of select="@length"/> a*", $data;
   $data = pop @r;
   for (@r) {
      last unless $_;
      $res .= chr $_;
   }
   # dump extra data to file for later analysis
   #my $x = pack "v*", @r; $x =~ s/^(..)*?\x00\x00//s; open DUMP, ">>/root/kgs-dump"; print DUMP $x; close DUMP;#d#
   $res;
}

sub enc_<xsl:value-of select="@name"/> {
   $data .= pack "v<xsl:value-of select="@length"/>", map ord, split //, $_[0];
}
</xsl:template>

<xsl:template match="type[@type = 'A']">
sub dec_<xsl:value-of select="@name"/> {
   (my ($r), $data) = unpack "Z<xsl:value-of select="@length"/> a*", $data; $r;
}

sub enc_<xsl:value-of select="@name"/> {
   $data .= pack "a<xsl:value-of select="@length"/>", $_[0];
}
</xsl:template>

<xsl:template match="type[@multiplier]">
sub dec_<xsl:value-of select="@name"/> {
   (1 / <xsl:value-of select="@multiplier"/>) * dec_<xsl:value-of select="@type"/>;
}

sub enc_<xsl:value-of select="@name"/> {
   enc_<xsl:value-of select="@type"/> $_[0] * <xsl:value-of select="@multiplier"/>;
}
</xsl:template>

<xsl:template match="member[@array = 'yes']" mode="dec">
   $r->{<xsl:value-of select="@name"/>} = (my $array = []);
   while (length $data) {
      push @$array, dec_<xsl:value-of select="@type"/>
                        <xsl:text> </xsl:text>;
   }
</xsl:template>

<xsl:template match="member" mode="dec">
   $r->{<xsl:value-of select="@name"/>} = dec_<xsl:value-of select="@type"/>
                                              <xsl:text> </xsl:text>
                                              <xsl:value-of select="concat('q|',@value,'|')"/>
   <xsl:if test="@guard-cond">
      if ($r->{<xsl:value-of select="@guard-member"/>} <xsl:value-of select="@guard-cond"/>)</xsl:if>
   <xsl:text>;</xsl:text>
</xsl:template>

<xsl:template match="member" mode="enc">
   enc_<xsl:value-of select="@type"/> defined $_[0]{<xsl:value-of select="@name"/>} ? $_[0]{<xsl:value-of select="@name"/>
   <xsl:text>} : (</xsl:text>
   <xsl:value-of select="concat('q|',@value,'|')"/>
   <xsl:text>);</xsl:text>
</xsl:template>

<xsl:template match="struct">
sub dec_<xsl:value-of select="@name"/> {
   my $r = {};
   <xsl:apply-templates select="member" mode="dec"/>
   <xsl:if test="@class">
   bless $r, <xsl:value-of select="@class"/>::;
   </xsl:if>
   $r;
}

sub enc_<xsl:value-of select="@name"/> {
   <xsl:apply-templates select="member" mode="enc"/>
}
</xsl:template>

<xsl:template match="message">
# <xsl:value-of select="@name"/>
$dec_<xsl:value-of select="@src"/>{0x<xsl:value-of select="@type"/>} = sub {
   $data = $_[0];
   my $r;
   $r->{type} = "<xsl:value-of select="@name"/>";
   <xsl:apply-templates select="member" mode="dec"/>
   $r;
};
$enc_<xsl:value-of select="@src"/>{<xsl:value-of select="@name"/>} = sub {
   $data = "";
   enc_U16 0x<xsl:value-of select="@type"/>;
   <xsl:apply-templates select="member" mode="enc"/>
   $data;
};
</xsl:template>

<xsl:template match="text()">
</xsl:template>

</xsl:stylesheet>

Revision:	1.9
Committed:	Tue May 25 15:54:02 2004 UTC (20 years ago) by pcg
Content type:	application/xml
Branch:	MAIN
Changes since 1.8:	+0 -1 lines
Log Message:	* empty log message *
#	User	Rev	Content
1	pcg	1.1	<!DOCTYPE xsl:stylesheet>
2			<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
3
4			<xsl:output method="text" media-type="text/plain" encoding="utf-8"/>
5
6			<xsl:template match="/"><![CDATA[
7			# This is an automatically generated file.
8			# This is an automatically generated file.
9			# This is an automatically generated file.
10			# This is an automatically generated file.
11			# This is an automatically generated file.
12
13			# See doc/protocol.xml and doc/doc2messages_pm.xsl (and doc/Makefile)
14
15			package KGS::Messages;
16
17	pcg	1.4	use Gtk2::GoBoard::Constants; # for MARK_xyz
18	pcg	1.1
19			use strict;
20
21			our %type;
22
23			our %dec_client; # decode messages send to server
24			our %enc_client; # encode messages send to server
25			our %dec_server; # decode messages received from server
26			our %enc_server; # encode messages received from server
27
28			{
29
30			my $data; # stores currently processed decoding/encoding packet
31
32	pcg	1.7	sub _set_data($) { $data = shift } # for debugging or special apps only
33
34	pcg	1.1	# primitive enc/decoders
35
36			#############################################################################
37
38			sub dec_U8 {
39			(my ($r), $data) = unpack "C a*", $data; $r;
40			}
41
42			sub dec_U16 {
43			(my ($r), $data) = unpack "v a*", $data; $r;
44			}
45
46			sub dec_U32 {
47			(my ($r), $data) = unpack "V a*", $data; $r;
48			}
49
50			sub dec_U64 {
51			my ($lo, $hi) = (dec_U32, dec_U32);
52			$lo + $hi * 2**32;
53			}
54
55			sub dec_I8 {
56			(my ($r), $data) = unpack "c a*", $data;
57			$r;
58			}
59
60			sub dec_I16 {
61			(my ($r), $data) = unpack "v a*", $data;
62			unpack "s", pack "S", $r;
63			}
64
65			sub dec_I32 {
66			(my ($r), $data) = unpack "V a*", $data;
67			unpack "i", pack "I", $r;
68			}
69
70			sub dec_DATA {
71			(my ($r), $data) = ($data, ""); $r;
72			}
73
74	pcg	1.6	sub dec_ZSTRING {
75	pcg	1.1	$data =~ s/^((?:..)*?)(?:\x00\x00\|\Z)//s;
76			# use Encode...
77			join "", map chr, unpack "v*", $1;
78			}
79
80	pcg	1.6	BEGIN { *dec_STRING = \&dec_ZSTRING };
81
82	pcg	1.1	sub dec_CONSTANT {
83			$_[0];
84			}
85
86			sub dec_password {
87			dec_U64;
88			}
89
90			sub dec_HEX { # for debugging
91			"HEX: " . unpack "H*", $data;#d#
92			}
93
94			#############################################################################
95
96			sub enc_U8 {
97			$data .= pack "C", $_[0];
98			}
99
100			sub enc_U16 {
101			$data .= pack "v", $_[0];
102			}
103
104			sub enc_U32 {
105			$data .= pack "V", $_[0];
106			}
107
108			sub enc_U64 {
109			enc_U32 $_[0] & 0xffffffff;
110			enc_U32 +($_[0] >> 32) & 0xffffffff;
111			}
112
113			sub enc_I8 {
114			$data .= pack "c", $_[0];
115			}
116
117			sub enc_I16 {
118			enc_U16 unpack "S", pack "s", $_[0];
119			}
120
121			sub enc_I32 {
122			enc_U32 unpack "I", pack "i", $_[0];
123			}
124
125			sub enc_DATA {
126			# a dream!
127			$data .= $_[0];
128			}
129
130	pcg	1.6	sub enc_ZSTRING {
131			# should use encode for speed and clarity ;)
132			$data .= pack "v*", (map ord, split //, $_[0]), 0;
133			}
134
135	pcg	1.1	sub enc_STRING {
136			# should use encode for speed and clarity ;)
137			$data .= pack "v*", map ord, split //, $_[0];
138			}
139
140			sub enc_CONSTANT {
141			# nop
142			}
143
144			sub enc_password {
145			require Math::BigInt; # I insist on 32-bit-perl.. should use C
146			# $hash must be 64 bit
147			my $hash = new Math::BigInt;
148			$hash = $hash * 1055 + ord for split //, $_[0];
149			enc_U64 $hash;
150			}
151
152			sub enc_HEX {
153			die "enc_HEX not defined for good";
154			}
155
156			]]>
157
158			#############################################################################
159			# types
160			<xsl:apply-templates select="descendant::type"/>
161
162			#############################################################################
163			# structures
164			<xsl:apply-templates select="descendant::struct"/>
165
166			#############################################################################
167			# "less" primitive types<![CDATA[
168
169			# this was the most horrible thing to decode. still not everything is decoded correctly(?)
170			sub dec_TREE {
171			my @r;
172	pcg	1.8	my $old_data = $data;#d#
173	pcg	1.1	while (length $data) {
174			my $type = dec_U8;
175			my $add = $type < 128;
176
177	pcg	1.8	my $ofs = (length $old_data) - (length $data);#d#
178
179	pcg	1.1	$type &= 127;
180
181			if ($type == 127) {
182			dec_U8; # unused?? sigh
183			push @r, [add_node => dec_I32];
184
185			} elsif ($type == 126) {
186			push @r, [set_node => dec_I32];
187
188			} elsif ($type == 125) {
189			push @r, [set_current => dec_I32];
190
191			} elsif ($type == 34) {
192			push @r, [score => dec_U8, dec_score1000];
193
194			} elsif ($type == 29) {
195	pcg	1.6	push @r, [type_29 => dec_ZSTRING];
196	pcg	1.7	warn "UNKNOWN TREE TYPE 29 $r[-1][1]\007 PLEASE REPORT";#d#
197	pcg	1.1	die;
198
199			} elsif ($type == 28) {
200			# move number, only in variations it seems. oh my.
201	pcg	1.6	push @r, [movenum => dec_ZSTRING];
202	pcg	1.1
203	pcg	1.7	} elsif ($type == 26) {
204			push @r, [type_26 => dec_U8]; # sets a flag (?)
205			warn "unknown tree node 26, PLEASE REPORT AND INCLUDE THE GAME\n";
206
207	pcg	1.1	} elsif ($type == 25) {
208			push @r, [result => dec_result];
209
210			} elsif ($type == 23) {
211			push @r, [mark => $add, MARK_GRAYED, dec_U8, dec_U8];
212
213			} elsif ($type == 22) {
214	pcg	1.6	push @r, [mark => $add, dec_U8() ? MARK_SMALL_W : MARK_SMALL_B, dec_U8, dec_U8];
215	pcg	1.1
216			} elsif ($type == 21) {
217	pcg	1.8	push @r, [mark => $add, MARK_SQUARE, dec_U8, dec_U8];
218	pcg	1.1
219			} elsif ($type == 20) {
220	pcg	1.8	push @r, [mark => $add, MARK_TRIANGLE, dec_U8, dec_U8];
221	pcg	1.1
222			} elsif ($type == 19) {
223	pcg	1.8	push @r, [mark => $add, MARK_LABEL, dec_U8, dec_U8, dec_ZSTRING];
224			#push @r, [unknown_18 => dec_U8, dec_U32, dec_U32, dec_U8, dec_U32, dec_U32, dec_U32];
225			#push @r, [set_timer => (dec_U8, dec_U32, dec_time)[0,2,1]];
226	pcg	1.1
227			} elsif ($type == 18) {
228	pcg	1.8	push @r, [set_timer => (dec_U8, dec_U32, dec_time)[0,2,1]];
229	pcg	1.1
230			} elsif ($type == 17) {
231	pcg	1.8	push @r, [set_stone => dec_U8, dec_U8, dec_U8];#d#?
232
233			# } elsif ($type == 16) {
234			# push @r, [set_stone => dec_U8, dec_U8, dec_U8];#o#
235	pcg	1.1
236	pcg	1.8	} elsif ($type == 15) {
237			push @r, [mark => $add, MARK_CIRCLE, dec_U8, dec_U8];#d#?
238	pcg	1.1
239			} elsif ($type == 14) {
240	pcg	1.6	push @r, [move => dec_U8, dec_U8, dec_U8];
241	pcg	1.1
242			} elsif (($type >= 4 && $type <= 9)
243			\|\| ($type >= 11 && $type <= 13)
244			\|\| $type == 24) {
245
246			push @r, [({
247			4 => "date",
248			5 => "unknown_comment5",
249	pcg	1.8	6 => "game_id", #?#
250	pcg	1.1	7 => "unknown_comment7",
251			8 => "unknown_comment8",
252			9 => "copyright", #?
253			11 => "unknown_comment11",
254			12 => "unknown_comment12",
255			13 => "unknown_comment13",
256			24 => "comment",
257	pcg	1.6	})->{$type} => dec_ZSTRING];
258	pcg	1.1
259			} elsif ($type == 3) {
260			push @r, [rank => dec_U8, dec_U32];
261
262			} elsif ($type == 2) {
263	pcg	1.6	push @r, [player => dec_U8, dec_ZSTRING];
264	pcg	1.1
265	pcg	1.8	} elsif ($type == 1) {
266			push @r, [sgf_name => dec_ZSTRING];
267
268	pcg	1.1	} elsif ($type == 0) {
269			# as usual, wms finds yet another way to duplicate code... oh well, what a mess.
270			# (no wonder he is so keen on keeping it a secret...)
271
272			push @r, [rules => dec_rules];
273
274			# OLD
275
276			} else {
277	pcg	1.7	require KGS::Listener::Debug; # hack
278	pcg	1.1	print STDERR KGS::Listener::Debug::dumpval(\@r);
279	pcg	1.8	printf "offset: 0x%04x\n", $ofs;
280			open XTYPE, "\|xtype"; print XTYPE $old_data; close XTYPE;
281			warn "unknown tree type $type, PLEASE REPORT and include the game you wanted to watch. thx.";
282	pcg	1.1
283			}
284	pcg	1.8
285			push @{$r[-1]}, offset => sprintf "0x%x", $ofs;#d#
286
287	pcg	1.1	}
288	pcg	1.8	# print STDERR KGS::Listener::Debug::dumpval(\@r);#d#
289			# return [];#d#
290	pcg	1.1	\@r;
291			}
292
293			sub enc_TREE {
294			for (@{$_[0]}) {
295			my ($type, @arg) = @$_;
296
297			if ($type eq "add_node") {
298			enc_U8 127;
299			enc_U8 0; # unused?
300			enc_I32 $arg[0];
301
302			} elsif ($type eq "set_node") {
303			enc_U8 126;
304			enc_I32 $arg[0];
305
306			} elsif ($type eq "set_current") {
307			enc_U8 125;
308			enc_I32 $arg[0];
309
310			} elsif ($type eq "movenum") {
311			enc_U8 28;
312	pcg	1.6	enc_ZSTRING $arg[0];
313	pcg	1.1
314			} elsif ($type eq "set_stone") {
315	pcg	1.6	enc_U8 16;
316			enc_U8 $arg[0];
317	pcg	1.1	enc_U8 $arg[1];
318			enc_U8 $arg[2];
319
320			} elsif ($type eq "move") {
321	pcg	1.6	enc_U8 14;
322			enc_U8 $arg[0];
323	pcg	1.1	enc_U8 $arg[1];
324			enc_U8 $arg[2];
325
326			} elsif ($type eq "comment") {
327			enc_U8 24;
328	pcg	1.6	enc_ZSTRING $arg[0];
329
330			} elsif ($type eq "mark") {
331			my $op = ({
332			&MARK_GRAYED => 23,
333			&MARK_SMALL_B => 22,
334			&MARK_SMALL_W => 22,
335			&MARK_CIRCLE => 21,
336			&MARK_SQUARE => 20,
337			&MARK_TRIANGLE => 19,
338			&MARK_LABEL => 18,
339			})->{$arg[1]};
340
341			enc_U8 $op + ($arg[0] ? 0 : 128);
342			enc_U8 $arg[1] == MARK_SMALL_W if $op == 22;
343			enc_U8 $arg[2];
344			enc_U8 $arg[3];
345
346			enc_ZSTRING $arg[4] if $op == 18;
347	pcg	1.1
348	pcg	1.7	# unknown types
349			} elsif ($type eq "type_29") {
350			enc_U8 29;
351			enc_ZSTRING $arg[0];
352			} elsif ($type eq "type_26") {
353			enc_U8 26;
354			enc_U8 $arg[0];
355
356	pcg	1.1	} else {
357			warn "unable to encode tree node type $type\n";
358			}
359			}
360	pcg	1.6	};
361
362	pcg	1.1	]]>
363
364			#############################################################################
365			# messages
366			<xsl:apply-templates select="descendant::message"/>
367			}
368
369			1;
370			</xsl:template>
371
372			<xsl:template match="type[@type = 'S']">
373			sub dec_<xsl:value-of select="@name"/> {
374			my $res = "";
375			my @r = unpack "v<xsl:value-of select="@length"/> a*", $data;
376			$data = pop @r;
377			for (@r) {
378			last unless $_;
379			$res .= chr $_;
380			}
381			# dump extra data to file for later analysis
382	pcg	1.5	#my $x = pack "v", @r; $x =~ s/^(..)?\x00\x00//s; open DUMP, ">>/root/kgs-dump"; print DUMP $x; close DUMP;#d#
383	pcg	1.1	$res;
384			}
385
386			sub enc_<xsl:value-of select="@name"/> {
387			$data .= pack "v<xsl:value-of select="@length"/>", map ord, split //, $_[0];
388			}
389			</xsl:template>
390
391			<xsl:template match="type[@type = 'A']">
392			sub dec_<xsl:value-of select="@name"/> {
393			(my ($r), $data) = unpack "Z<xsl:value-of select="@length"/> a*", $data; $r;
394			}
395
396			sub enc_<xsl:value-of select="@name"/> {
397	pcg	1.2	$data .= pack "a<xsl:value-of select="@length"/>", $_[0];
398	pcg	1.1	}
399			</xsl:template>
400
401			<xsl:template match="type[@multiplier]">
402			sub dec_<xsl:value-of select="@name"/> {
403			(1 / <xsl:value-of select="@multiplier"/>) * dec_<xsl:value-of select="@type"/>;
404			}
405
406			sub enc_<xsl:value-of select="@name"/> {
407			enc_<xsl:value-of select="@type"/> $_[0] * <xsl:value-of select="@multiplier"/>;
408			}
409			</xsl:template>
410
411			<xsl:template match="member[@array = 'yes']" mode="dec">
412			$r->{<xsl:value-of select="@name"/>} = (my $array = []);
413			while (length $data) {
414			push @$array, dec_<xsl:value-of select="@type"/>
415	pcg	1.3	<xsl:text> </xsl:text>;
416	pcg	1.1	}
417			</xsl:template>
418
419			<xsl:template match="member" mode="dec">
420			$r->{<xsl:value-of select="@name"/>} = dec_<xsl:value-of select="@type"/>
421			<xsl:text> </xsl:text>
422	pcg	1.3	<xsl:value-of select="concat('q\|',@value,'\|')"/>
423	pcg	1.1	<xsl:if test="@guard-cond">
424			if ($r->{<xsl:value-of select="@guard-member"/>} <xsl:value-of select="@guard-cond"/>)</xsl:if>
425			<xsl:text>;</xsl:text>
426			</xsl:template>
427
428			<xsl:template match="member" mode="enc">
429			enc_<xsl:value-of select="@type"/> defined $_[0]{<xsl:value-of select="@name"/>} ? $_[0]{<xsl:value-of select="@name"/>
430			<xsl:text>} : (</xsl:text>
431	pcg	1.3	<xsl:value-of select="concat('q\|',@value,'\|')"/>
432	pcg	1.1	<xsl:text>);</xsl:text>
433			</xsl:template>
434
435			<xsl:template match="struct">
436			sub dec_<xsl:value-of select="@name"/> {
437			my $r = {};
438			<xsl:apply-templates select="member" mode="dec"/>
439			<xsl:if test="@class">
440			bless $r, <xsl:value-of select="@class"/>::;
441			</xsl:if>
442			$r;
443			}
444
445			sub enc_<xsl:value-of select="@name"/> {
446			<xsl:apply-templates select="member" mode="enc"/>
447			}
448			</xsl:template>
449
450			<xsl:template match="message">
451			# <xsl:value-of select="@name"/>
452			$dec_<xsl:value-of select="@src"/>{0x<xsl:value-of select="@type"/>} = sub {
453			$data = $_[0];
454			my $r;
455			$r->{type} = "<xsl:value-of select="@name"/>";
456			<xsl:apply-templates select="member" mode="dec"/>
457			$r;
458			};
459			$enc_<xsl:value-of select="@src"/>{<xsl:value-of select="@name"/>} = sub {
460			$data = "";
461			enc_U16 0x<xsl:value-of select="@type"/>;
462			<xsl:apply-templates select="member" mode="enc"/>
463			$data;
464			};
465			</xsl:template>
466
467			<xsl:template match="text()">
468			</xsl:template>
469
470			</xsl:stylesheet>
471