kgsueme/doc/doc2haskell.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/doc2haskell.xsl

-- primitive enc/decoders

import Data.Word
import Control.Monad.State

hasData :: State [Word8] Bool
hasData = do
           xs <- get
           return $ not $ null xs

getU8 :: State [Word8] Int
getU8 = do
           (x:xs) <- get
           put xs
           return x

getU16 :: State [Word8] Int
getU16 = do
             a <- getU8
             b <- getU8
             return $ a + b * 256

decU64
decI8
decI16
decI32
decDATA

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

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_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[

decTREE
encTREE

]]>

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

1;
</xsl:template>

<xsl:template match="type[@type = 'S']">
dec<xsl:value-of select="@name"/> :: State [Word8] [Char]
dec<xsl:value-of select="@name"/> = do
   -- decode UCS-2 string of length <xsl:value-of select="@length"/>
   -- the first 0 terminates the string, but not the field

enc<xsl:value-of select="@name"/> =
   -- likewise, encode as UCS-2, fill space with 0

</xsl:template>

<xsl:template match="type[@type = 'A']">
dec<xsl:value-of select="@name"/> :: State [Word8] [Char]
dec<xsl:value-of select="@name"/> = do
   -- decode ASCII string of length <xsl:value-of select="@length"/>
   -- the first 0 terminates the string, but not the field

enc<xsl:value-of select="@name"/> =
   -- likewise, encode as ASCII, fill space with 0

</xsl:template>

<xsl:template match="type[@multiplier]">
dec<xsl:value-of select="@name"/> = do
   n &lt;- dec<xsl:value-of select="@type"/>
   return n * (1 / <xsl:value-of select="@multiplier"/>)

enc<xsl:value-of select="@name"/> n =
   enc<xsl:value-of select="@type"/> $ n * <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:value-of select="@default"/>;
   }
</xsl:template>

<xsl:template match="member" mode="dec">
   <xsl:if test="@guard-cond">
      -- decode next only when <xsl:value-of select="@guard-member"/> <xsl:value-of select="@guard-cond"/> --
   </xsl:if>
   dec<xsl:value-of select="@type"/> -- default <xsl:value-of select="@default"/> --
</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"/> s
   <xsl:text>} : (</xsl:text>
   <xsl:value-of select="@default"/>
   <xsl:text>);</xsl:text>
</xsl:template>

<xsl:template match="struct">
dec<xsl:value-of select="@name"/> = do
   <xsl:apply-templates select="member" mode="dec"/>
   <xsl:if test="@class">
   -- result has class <xsl:value-of select="@class"/> --
   </xsl:if>

enc<xsl:value-of select="@name"/> s =
   <xsl:apply-templates select="member" mode="enc"/>

</xsl:template>

<xsl:template match="message">
# <xsl:value-of select="@name"/>
dec<xsl:value-of select="@src"/>_<xsl:value-of select="@type"/> = do
   -- type "<xsl:value-of select="@name"/>" --
   <xsl:apply-templates select="member" mode="dec"/>

enc<xsl:value-of select="@src"/>_<xsl:value-of select="@name"/> =
   encU16 0x<xsl:value-of select="@type"/>
   <xsl:apply-templates select="member" mode="enc"/>

</xsl:template>

<xsl:template match="member">
   [<xsl:value-of select="@name"/>
   <xsl:text>=> "</xsl:text>
   <xsl:value-of select="@type"/>
   <xsl:text>", "</xsl:text>
   <xsl:value-of select="@default"/>
   <xsl:text>", "</xsl:text>
   <xsl:value-of select="@guard"/>
   <xsl:text>;"],</xsl:text>
</xsl:template>

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

</xsl:stylesheet>

Revision:	1.5
Committed:	Fri Jul 25 22:40:53 2003 UTC (20 years, 10 months ago) by pcg
Content type:	application/xml
Branch:	MAIN
Changes since 1.4:	+18 -23 lines
Log Message:	* empty log message *
#	Content
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/doc2haskell.xsl
14
15	-- primitive enc/decoders
16
17	import Data.Word
18	import Control.Monad.State
19
20	hasData :: State [Word8] Bool
21	hasData = do
22	xs <- get
23	return $ not $ null xs
24
25	getU8 :: State [Word8] Int
26	getU8 = do
27	(x:xs) <- get
28	put xs
29	return x
30
31	getU16 :: State [Word8] Int
32	getU16 = do
33	a <- getU8
34	b <- getU8
35	return $ a + b * 256
36
37	decU64
38	decI8
39	decI16
40	decI32
41	decDATA
42
43	sub dec_STRING {
44	$data =~ s/^((?:..)*?)(?:\x00\x00\|\Z)//s;
45	# use Encode...
46	join "", map chr, unpack "v*", $1;
47	}
48
49	sub dec_CONSTANT {
50	$_[0];
51	}
52
53	sub dec_password {
54	dec_U64;
55	}
56
57	sub dec_HEX { # for debugging
58	"HEX: " . unpack "H*", $data;#d#
59	}
60
61	#############################################################################
62
63	sub enc_U8 {
64	$data .= pack "C", $_[0];
65	}
66
67	sub enc_U16 {
68	$data .= pack "v", $_[0];
69	}
70
71	sub enc_U32 {
72	$data .= pack "V", $_[0];
73	}
74
75	sub enc_U64 {
76	enc_U32 $_[0] & 0xffffffff;
77	enc_U32 +($_[0] >> 32) & 0xffffffff;
78	}
79
80	sub enc_I8 {
81	$data .= pack "c", $_[0];
82	}
83
84	sub enc_I16 {
85	enc_U16 unpack "S", pack "s", $_[0];
86	}
87
88	sub enc_I32 {
89	enc_U32 unpack "I", pack "i", $_[0];
90	}
91
92	sub enc_DATA {
93	# a dream!
94	$data .= $_[0];
95	}
96
97	sub enc_STRING {
98	# should use encode for speed and clarity ;)
99	$data .= pack "v*", map ord, split //, $_[0];
100	}
101
102	sub enc_CONSTANT {
103	# nop
104	}
105
106	sub enc_password {
107	require Math::BigInt; # I insist on 32-bit-perl.. should use C
108	# $hash must be 64 bit
109	my $hash = new Math::BigInt;
110	$hash = $hash * 1055 + ord for split //, $_[0];
111	enc_U64 $hash;
112	}
113
114	sub enc_HEX {
115	die "enc_HEX not defined for good";
116	}
117
118	]]>
119
120	#############################################################################
121	# types
122	<xsl:apply-templates select="descendant::type"/>
123
124	#############################################################################
125	# structures
126	<xsl:apply-templates select="descendant::struct"/>
127
128	#############################################################################
129	# "less" primitive types<![CDATA[
130
131	decTREE
132	encTREE
133
134	]]>
135
136	#############################################################################
137	# messages
138	<xsl:apply-templates select="descendant::message"/>
139	}
140
141	1;
142	</xsl:template>
143
144	<xsl:template match="type[@type = 'S']">
145	dec<xsl:value-of select="@name"/> :: State [Word8] [Char]
146	dec<xsl:value-of select="@name"/> = do
147	-- decode UCS-2 string of length <xsl:value-of select="@length"/>
148	-- the first 0 terminates the string, but not the field
149
150	enc<xsl:value-of select="@name"/> =
151	-- likewise, encode as UCS-2, fill space with 0
152
153	</xsl:template>
154
155	<xsl:template match="type[@type = 'A']">
156	dec<xsl:value-of select="@name"/> :: State [Word8] [Char]
157	dec<xsl:value-of select="@name"/> = do
158	-- decode ASCII string of length <xsl:value-of select="@length"/>
159	-- the first 0 terminates the string, but not the field
160
161	enc<xsl:value-of select="@name"/> =
162	-- likewise, encode as ASCII, fill space with 0
163
164	</xsl:template>
165
166	<xsl:template match="type[@multiplier]">
167	dec<xsl:value-of select="@name"/> = do
168	n <- dec<xsl:value-of select="@type"/>
169	return n * (1 / <xsl:value-of select="@multiplier"/>)
170
171	enc<xsl:value-of select="@name"/> n =
172	enc<xsl:value-of select="@type"/> $ n * <xsl:value-of select="@multiplier"/>
173
174	</xsl:template>
175
176	<xsl:template match="member[@array = 'yes']" mode="dec">
177	$r->{<xsl:value-of select="@name"/>} = (my $array = []);
178	while (length $data) {
179	push @$array, dec_<xsl:value-of select="@type"/>
180	<xsl:text> </xsl:text>
181	<xsl:value-of select="@default"/>;
182	}
183	</xsl:template>
184
185	<xsl:template match="member" mode="dec">
186	<xsl:if test="@guard-cond">
187	-- decode next only when <xsl:value-of select="@guard-member"/> <xsl:value-of select="@guard-cond"/> --
188	</xsl:if>
189	dec<xsl:value-of select="@type"/> -- default <xsl:value-of select="@default"/> --
190	</xsl:template>
191
192	<xsl:template match="member" mode="enc">
193	enc<xsl:value-of select="@type"/> defined $_[0]{<xsl:value-of select="@name"/>} ? $_[0]{<xsl:value-of select="@name"/> s
194	<xsl:text>} : (</xsl:text>
195	<xsl:value-of select="@default"/>
196	<xsl:text>);</xsl:text>
197	</xsl:template>
198
199	<xsl:template match="struct">
200	dec<xsl:value-of select="@name"/> = do
201	<xsl:apply-templates select="member" mode="dec"/>
202	<xsl:if test="@class">
203	-- result has class <xsl:value-of select="@class"/> --
204	</xsl:if>
205
206	enc<xsl:value-of select="@name"/> s =
207	<xsl:apply-templates select="member" mode="enc"/>
208
209	</xsl:template>
210
211	<xsl:template match="message">
212	# <xsl:value-of select="@name"/>
213	dec<xsl:value-of select="@src"/>_<xsl:value-of select="@type"/> = do
214	-- type "<xsl:value-of select="@name"/>" --
215	<xsl:apply-templates select="member" mode="dec"/>
216
217	enc<xsl:value-of select="@src"/>_<xsl:value-of select="@name"/> =
218	encU16 0x<xsl:value-of select="@type"/>
219	<xsl:apply-templates select="member" mode="enc"/>
220
221	</xsl:template>
222
223	<xsl:template match="member">
224	[<xsl:value-of select="@name"/>
225	<xsl:text>=> "</xsl:text>
226	<xsl:value-of select="@type"/>
227	<xsl:text>", "</xsl:text>
228	<xsl:value-of select="@default"/>
229	<xsl:text>", "</xsl:text>
230	<xsl:value-of select="@guard"/>
231	<xsl:text>;"],</xsl:text>
232	</xsl:template>
233
234	<xsl:template match="text()">
235	</xsl:template>
236
237	</xsl:stylesheet>
238