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 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

{

use Gtk2::GoBoard::Constants; # for MARK_xyz
use Math::BigInt ();

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

sub _set_data($) { $data = shift } # for debugging or special apps only
sub _get_data() { $data } # 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 {
   # do NOT use Math::BigInt here.
   my ($lo, $hi) = (dec_U32, dec_U32);
   $hi * 2**32 + $lo;
}

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 {
   my $i = new Math::BigInt $_[0];

   enc_U32 $i & 0xffffffff;
   enc_U32 $i >> 32;
}

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 {
   # $hash must be 64 bit
   my $hash = new Math::BigInt;
   $hash = $hash * 1055 + ord for split //, $_[0];
   enc_U64 $hash & new Math::BigInt "0xffffffffffffffff";
}

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_score32_1000];

      } 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 ignore\n";
         # possibly marks moves done while editing, as opposed to game-moves(?)

      } 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 $op = ({
                  &MARK_GRAYED   => 23,
                  &MARK_SMALL_B  => 22,
                  &MARK_SMALL_W  => 22,
                  &MARK_SQUARE   => 21,
                  &MARK_TRIANGLE => 20,
                  &MARK_LABEL    => 19,
                  &MARK_CIRCLE   => 15,
                })->{$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 = { DATA => $data };
   $r->{type} = "<xsl:value-of select="@name"/>";
   <xsl:apply-templates select="member" mode="dec"/>
   $r->{TRAILING_DATA} = $data if length $data;
   $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:	1.12
Committed:	Mon Jun 7 13:37:07 2004 UTC (19 years, 11 months ago) by root
Content type:	application/xml
Branch:	MAIN
Changes since 1.11:	+14 -9 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			use strict;
18
19			our %type;
20
21			our %dec_client; # decode messages send to server
22			our %enc_client; # encode messages send to server
23			our %dec_server; # decode messages received from server
24			our %enc_server; # encode messages received from server
25
26			{
27
28	root	1.12	use Gtk2::GoBoard::Constants; # for MARK_xyz
29			use Math::BigInt ();
30
31	pcg	1.1	my $data; # stores currently processed decoding/encoding packet
32
33	pcg	1.7	sub _set_data($) { $data = shift } # for debugging or special apps only
34	root	1.12	sub _get_data() { $data } # for debugging or special apps only
35	pcg	1.7
36	pcg	1.1	# primitive enc/decoders
37
38			#############################################################################
39
40			sub dec_U8 {
41			(my ($r), $data) = unpack "C a*", $data; $r;
42			}
43
44			sub dec_U16 {
45			(my ($r), $data) = unpack "v a*", $data; $r;
46			}
47
48			sub dec_U32 {
49			(my ($r), $data) = unpack "V a*", $data; $r;
50			}
51
52			sub dec_U64 {
53	root	1.12	# do NOT use Math::BigInt here.
54	pcg	1.1	my ($lo, $hi) = (dec_U32, dec_U32);
55	root	1.12	$hi * 2**32 + $lo;
56	pcg	1.1	}
57
58			sub dec_I8 {
59			(my ($r), $data) = unpack "c a*", $data;
60			$r;
61			}
62
63			sub dec_I16 {
64			(my ($r), $data) = unpack "v a*", $data;
65			unpack "s", pack "S", $r;
66			}
67
68			sub dec_I32 {
69			(my ($r), $data) = unpack "V a*", $data;
70			unpack "i", pack "I", $r;
71			}
72
73			sub dec_DATA {
74			(my ($r), $data) = ($data, ""); $r;
75			}
76
77	pcg	1.6	sub dec_ZSTRING {
78	pcg	1.1	$data =~ s/^((?:..)*?)(?:\x00\x00\|\Z)//s;
79			# use Encode...
80			join "", map chr, unpack "v*", $1;
81			}
82
83	pcg	1.6	BEGIN { *dec_STRING = \&dec_ZSTRING };
84
85	pcg	1.1	sub dec_CONSTANT {
86			$_[0];
87			}
88
89			sub dec_password {
90			dec_U64;
91			}
92
93			sub dec_HEX { # for debugging
94			"HEX: " . unpack "H*", $data;#d#
95			}
96
97			#############################################################################
98
99			sub enc_U8 {
100			$data .= pack "C", $_[0];
101			}
102
103			sub enc_U16 {
104			$data .= pack "v", $_[0];
105			}
106
107			sub enc_U32 {
108			$data .= pack "V", $_[0];
109			}
110
111			sub enc_U64 {
112	root	1.12	my $i = new Math::BigInt $_[0];
113
114			enc_U32 $i & 0xffffffff;
115			enc_U32 $i >> 32;
116	pcg	1.1	}
117
118			sub enc_I8 {
119			$data .= pack "c", $_[0];
120			}
121
122			sub enc_I16 {
123			enc_U16 unpack "S", pack "s", $_[0];
124			}
125
126			sub enc_I32 {
127			enc_U32 unpack "I", pack "i", $_[0];
128			}
129
130			sub enc_DATA {
131			# a dream!
132			$data .= $_[0];
133			}
134
135	pcg	1.6	sub enc_ZSTRING {
136			# should use encode for speed and clarity ;)
137			$data .= pack "v*", (map ord, split //, $_[0]), 0;
138			}
139
140	pcg	1.1	sub enc_STRING {
141			# should use encode for speed and clarity ;)
142			$data .= pack "v*", map ord, split //, $_[0];
143			}
144
145			sub enc_CONSTANT {
146			# nop
147			}
148
149			sub enc_password {
150			# $hash must be 64 bit
151			my $hash = new Math::BigInt;
152			$hash = $hash * 1055 + ord for split //, $_[0];
153	root	1.12	enc_U64 $hash & new Math::BigInt "0xffffffffffffffff";
154	pcg	1.1	}
155
156			sub enc_HEX {
157			die "enc_HEX not defined for good";
158			}
159
160			]]>
161
162			#############################################################################
163			# types
164			<xsl:apply-templates select="descendant::type"/>
165
166			#############################################################################
167			# structures
168			<xsl:apply-templates select="descendant::struct"/>
169
170			#############################################################################
171			# "less" primitive types<![CDATA[
172
173			# this was the most horrible thing to decode. still not everything is decoded correctly(?)
174			sub dec_TREE {
175			my @r;
176	pcg	1.8	my $old_data = $data;#d#
177	pcg	1.1	while (length $data) {
178			my $type = dec_U8;
179			my $add = $type < 128;
180
181	pcg	1.8	my $ofs = (length $old_data) - (length $data);#d#
182
183	pcg	1.1	$type &= 127;
184
185			if ($type == 127) {
186			dec_U8; # unused?? sigh
187			push @r, [add_node => dec_I32];
188
189			} elsif ($type == 126) {
190			push @r, [set_node => dec_I32];
191
192			} elsif ($type == 125) {
193			push @r, [set_current => dec_I32];
194
195			} elsif ($type == 34) {
196	root	1.12	push @r, [score => dec_U8, dec_score32_1000];
197	pcg	1.1
198			} elsif ($type == 29) {
199	pcg	1.6	push @r, [type_29 => dec_ZSTRING];
200	pcg	1.7	warn "UNKNOWN TREE TYPE 29 $r[-1][1]\007 PLEASE REPORT";#d#
201	pcg	1.1	die;
202
203			} elsif ($type == 28) {
204			# move number, only in variations it seems. oh my.
205	pcg	1.6	push @r, [movenum => dec_ZSTRING];
206	pcg	1.1
207	pcg	1.7	} elsif ($type == 26) {
208			push @r, [type_26 => dec_U8]; # sets a flag (?)
209	pcg	1.11	warn "unknown tree node 26, please ignore\n";
210			# possibly marks moves done while editing, as opposed to game-moves(?)
211	pcg	1.7
212	pcg	1.1	} elsif ($type == 25) {
213			push @r, [result => dec_result];
214
215			} elsif ($type == 23) {
216			push @r, [mark => $add, MARK_GRAYED, dec_U8, dec_U8];
217
218			} elsif ($type == 22) {
219	pcg	1.6	push @r, [mark => $add, dec_U8() ? MARK_SMALL_W : MARK_SMALL_B, dec_U8, dec_U8];
220	pcg	1.1
221			} elsif ($type == 21) {
222	pcg	1.8	push @r, [mark => $add, MARK_SQUARE, dec_U8, dec_U8];
223	pcg	1.1
224			} elsif ($type == 20) {
225	pcg	1.8	push @r, [mark => $add, MARK_TRIANGLE, dec_U8, dec_U8];
226	pcg	1.1
227			} elsif ($type == 19) {
228	pcg	1.8	push @r, [mark => $add, MARK_LABEL, dec_U8, dec_U8, dec_ZSTRING];
229			#push @r, [unknown_18 => dec_U8, dec_U32, dec_U32, dec_U8, dec_U32, dec_U32, dec_U32];
230			#push @r, [set_timer => (dec_U8, dec_U32, dec_time)[0,2,1]];
231	pcg	1.1
232			} elsif ($type == 18) {
233	pcg	1.8	push @r, [set_timer => (dec_U8, dec_U32, dec_time)[0,2,1]];
234	pcg	1.1
235			} elsif ($type == 17) {
236	pcg	1.8	push @r, [set_stone => dec_U8, dec_U8, dec_U8];#d#?
237
238			# } elsif ($type == 16) {
239			# push @r, [set_stone => dec_U8, dec_U8, dec_U8];#o#
240	pcg	1.1
241	pcg	1.8	} elsif ($type == 15) {
242			push @r, [mark => $add, MARK_CIRCLE, dec_U8, dec_U8];#d#?
243	pcg	1.1
244			} elsif ($type == 14) {
245	pcg	1.6	push @r, [move => dec_U8, dec_U8, dec_U8];
246	pcg	1.1
247			} elsif (($type >= 4 && $type <= 9)
248			\|\| ($type >= 11 && $type <= 13)
249			\|\| $type == 24) {
250
251			push @r, [({
252			4 => "date",
253			5 => "unknown_comment5",
254	pcg	1.8	6 => "game_id", #?#
255	pcg	1.1	7 => "unknown_comment7",
256			8 => "unknown_comment8",
257			9 => "copyright", #?
258			11 => "unknown_comment11",
259			12 => "unknown_comment12",
260			13 => "unknown_comment13",
261			24 => "comment",
262	pcg	1.6	})->{$type} => dec_ZSTRING];
263	pcg	1.1
264			} elsif ($type == 3) {
265			push @r, [rank => dec_U8, dec_U32];
266
267			} elsif ($type == 2) {
268	pcg	1.6	push @r, [player => dec_U8, dec_ZSTRING];
269	pcg	1.1
270	pcg	1.8	} elsif ($type == 1) {
271			push @r, [sgf_name => dec_ZSTRING];
272
273	pcg	1.1	} elsif ($type == 0) {
274			# as usual, wms finds yet another way to duplicate code... oh well, what a mess.
275			# (no wonder he is so keen on keeping it a secret...)
276
277			push @r, [rules => dec_rules];
278
279			# OLD
280
281			} else {
282	pcg	1.7	require KGS::Listener::Debug; # hack
283	pcg	1.1	print STDERR KGS::Listener::Debug::dumpval(\@r);
284	pcg	1.8	printf "offset: 0x%04x\n", $ofs;
285			open XTYPE, "\|xtype"; print XTYPE $old_data; close XTYPE;
286			warn "unknown tree type $type, PLEASE REPORT and include the game you wanted to watch. thx.";
287	pcg	1.1
288			}
289	pcg	1.8
290	pcg	1.11	#push @{$r[-1]}, offset => sprintf "0x%x", $ofs;#d#
291	pcg	1.8
292	pcg	1.1	}
293	pcg	1.8	# print STDERR KGS::Listener::Debug::dumpval(\@r);#d#
294			# return [];#d#
295	pcg	1.1	\@r;
296			}
297
298			sub enc_TREE {
299			for (@{$_[0]}) {
300			my ($type, @arg) = @$_;
301
302			if ($type eq "add_node") {
303			enc_U8 127;
304			enc_U8 0; # unused?
305			enc_I32 $arg[0];
306
307			} elsif ($type eq "set_node") {
308			enc_U8 126;
309			enc_I32 $arg[0];
310
311			} elsif ($type eq "set_current") {
312			enc_U8 125;
313			enc_I32 $arg[0];
314
315			} elsif ($type eq "movenum") {
316			enc_U8 28;
317	pcg	1.6	enc_ZSTRING $arg[0];
318	pcg	1.1
319			} elsif ($type eq "set_stone") {
320	pcg	1.6	enc_U8 16;
321			enc_U8 $arg[0];
322	pcg	1.1	enc_U8 $arg[1];
323			enc_U8 $arg[2];
324
325			} elsif ($type eq "move") {
326	pcg	1.6	enc_U8 14;
327			enc_U8 $arg[0];
328	pcg	1.1	enc_U8 $arg[1];
329			enc_U8 $arg[2];
330
331			} elsif ($type eq "comment") {
332			enc_U8 24;
333	pcg	1.6	enc_ZSTRING $arg[0];
334
335			} elsif ($type eq "mark") {
336			my $op = ({
337			&MARK_GRAYED => 23,
338			&MARK_SMALL_B => 22,
339			&MARK_SMALL_W => 22,
340	pcg	1.10	&MARK_SQUARE => 21,
341			&MARK_TRIANGLE => 20,
342			&MARK_LABEL => 19,
343			&MARK_CIRCLE => 15,
344	pcg	1.6	})->{$arg[1]};
345
346			enc_U8 $op + ($arg[0] ? 0 : 128);
347			enc_U8 $arg[1] == MARK_SMALL_W if $op == 22;
348			enc_U8 $arg[2];
349			enc_U8 $arg[3];
350
351			enc_ZSTRING $arg[4] if $op == 18;
352	pcg	1.1
353	pcg	1.7	# unknown types
354			} elsif ($type eq "type_29") {
355			enc_U8 29;
356			enc_ZSTRING $arg[0];
357			} elsif ($type eq "type_26") {
358			enc_U8 26;
359			enc_U8 $arg[0];
360
361	pcg	1.1	} else {
362			warn "unable to encode tree node type $type\n";
363			}
364			}
365	pcg	1.6	};
366
367	pcg	1.1	]]>
368
369			#############################################################################
370			# messages
371			<xsl:apply-templates select="descendant::message"/>
372			}
373
374			1;
375			</xsl:template>
376
377			<xsl:template match="type[@type = 'S']">
378			sub dec_<xsl:value-of select="@name"/> {
379			my $res = "";
380			my @r = unpack "v<xsl:value-of select="@length"/> a*", $data;
381			$data = pop @r;
382			for (@r) {
383			last unless $_;
384			$res .= chr $_;
385			}
386			# dump extra data to file for later analysis
387	pcg	1.5	#my $x = pack "v", @r; $x =~ s/^(..)?\x00\x00//s; open DUMP, ">>/root/kgs-dump"; print DUMP $x; close DUMP;#d#
388	pcg	1.1	$res;
389			}
390
391			sub enc_<xsl:value-of select="@name"/> {
392			$data .= pack "v<xsl:value-of select="@length"/>", map ord, split //, $_[0];
393			}
394			</xsl:template>
395
396			<xsl:template match="type[@type = 'A']">
397			sub dec_<xsl:value-of select="@name"/> {
398			(my ($r), $data) = unpack "Z<xsl:value-of select="@length"/> a*", $data; $r;
399			}
400
401			sub enc_<xsl:value-of select="@name"/> {
402	pcg	1.2	$data .= pack "a<xsl:value-of select="@length"/>", $_[0];
403	pcg	1.1	}
404			</xsl:template>
405
406			<xsl:template match="type[@multiplier]">
407			sub dec_<xsl:value-of select="@name"/> {
408			(1 / <xsl:value-of select="@multiplier"/>) * dec_<xsl:value-of select="@type"/>;
409			}
410
411			sub enc_<xsl:value-of select="@name"/> {
412			enc_<xsl:value-of select="@type"/> $_[0] * <xsl:value-of select="@multiplier"/>;
413			}
414			</xsl:template>
415
416			<xsl:template match="member[@array = 'yes']" mode="dec">
417			$r->{<xsl:value-of select="@name"/>} = (my $array = []);
418			while (length $data) {
419			push @$array, dec_<xsl:value-of select="@type"/>
420	pcg	1.3	<xsl:text> </xsl:text>;
421	pcg	1.1	}
422			</xsl:template>
423
424			<xsl:template match="member" mode="dec">
425			$r->{<xsl:value-of select="@name"/>} = dec_<xsl:value-of select="@type"/>
426			<xsl:text> </xsl:text>
427	pcg	1.3	<xsl:value-of select="concat('q\|',@value,'\|')"/>
428	pcg	1.1	<xsl:if test="@guard-cond">
429			if ($r->{<xsl:value-of select="@guard-member"/>} <xsl:value-of select="@guard-cond"/>)</xsl:if>
430			<xsl:text>;</xsl:text>
431			</xsl:template>
432
433			<xsl:template match="member" mode="enc">
434			enc_<xsl:value-of select="@type"/> defined $_[0]{<xsl:value-of select="@name"/>} ? $_[0]{<xsl:value-of select="@name"/>
435			<xsl:text>} : (</xsl:text>
436	pcg	1.3	<xsl:value-of select="concat('q\|',@value,'\|')"/>
437	pcg	1.1	<xsl:text>);</xsl:text>
438			</xsl:template>
439
440			<xsl:template match="struct">
441			sub dec_<xsl:value-of select="@name"/> {
442			my $r = {};
443			<xsl:apply-templates select="member" mode="dec"/>
444			<xsl:if test="@class">
445			bless $r, <xsl:value-of select="@class"/>::;
446			</xsl:if>
447			$r;
448			}
449
450			sub enc_<xsl:value-of select="@name"/> {
451			<xsl:apply-templates select="member" mode="enc"/>
452			}
453			</xsl:template>
454
455			<xsl:template match="message">
456			# <xsl:value-of select="@name"/>
457			$dec_<xsl:value-of select="@src"/>{0x<xsl:value-of select="@type"/>} = sub {
458			$data = $_[0];
459	root	1.12	my $r = { DATA => $data };
460	pcg	1.1	$r->{type} = "<xsl:value-of select="@name"/>";
461			<xsl:apply-templates select="member" mode="dec"/>
462	root	1.12	$r->{TRAILING_DATA} = $data if length $data;
463	pcg	1.1	$r;
464			};
465			$enc_<xsl:value-of select="@src"/>{<xsl:value-of select="@name"/>} = sub {
466			$data = "";
467			enc_U16 0x<xsl:value-of select="@type"/>;
468			<xsl:apply-templates select="member" mode="enc"/>
469			$data;
470			};
471			</xsl:template>
472
473			<xsl:template match="text()">
474			</xsl:template>
475
476			</xsl:stylesheet>
477