blob: 887a99171bf113bc209259ad2e48e590e002c03b (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
|
<?xml version="1.0" encoding="UTF-8"?>
<!--
xml2dot.xsl - transform Bison XML Report into DOT.
Copyright (C) 2007-2010 Free Software Foundation, Inc.
This file is part of Bison, the GNU Compiler Compiler.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
Written by Wojciech Polak <polak@gnu.org>.
-->
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:bison="http://www.gnu.org/software/bison/">
<xsl:import href="bison.xsl"/>
<xsl:output method="text" encoding="UTF-8" indent="no"/>
<xsl:template match="/">
<xsl:apply-templates select="bison-xml-report"/>
</xsl:template>
<xsl:template match="bison-xml-report">
<xsl:apply-templates select="automaton"/>
</xsl:template>
<xsl:template match="automaton">
<xsl:text>digraph Automaton { </xsl:text>
<xsl:apply-templates select="state"/>
<xsl:text>} </xsl:text>
</xsl:template>
<xsl:template match="automaton/state">
<xsl:call-template name="output-node">
<xsl:with-param name="number" select="@number"/>
<xsl:with-param name="label">
<xsl:value-of select="@number"/>
<xsl:apply-templates select="itemset/item"/>
</xsl:with-param>
</xsl:call-template>
<xsl:apply-templates select="actions/transitions"/>
</xsl:template>
<xsl:template match="actions/transitions">
<xsl:apply-templates select="transition"/>
</xsl:template>
<xsl:template match="item">
<xsl:apply-templates select="key('bison:ruleByNumber', @rule-number)">
<xsl:with-param name="point" select="@point"/>
</xsl:apply-templates>
<xsl:apply-templates select="lookaheads"/>
</xsl:template>
<xsl:template match="rule">
<xsl:param name="point"/>
<xsl:text> </xsl:text>
<xsl:value-of select="lhs"/>
<xsl:text> -></xsl:text>
<xsl:if test="$point = 0">
<xsl:text> .</xsl:text>
</xsl:if>
<xsl:for-each select="rhs/symbol|rhs/empty">
<xsl:apply-templates select="."/>
<xsl:if test="$point = position()">
<xsl:text> .</xsl:text>
</xsl:if>
</xsl:for-each>
</xsl:template>
<xsl:template match="symbol">
<xsl:text> </xsl:text>
<xsl:value-of select="."/>
</xsl:template>
<xsl:template match="empty"/>
<xsl:template match="lookaheads">
<xsl:text>[</xsl:text>
<xsl:apply-templates select="symbol"/>
<xsl:text>]</xsl:text>
</xsl:template>
<xsl:template match="lookaheads/symbol">
<xsl:value-of select="."/>
<xsl:if test="position() != last()">
<xsl:text>, </xsl:text>
</xsl:if>
</xsl:template>
<xsl:template match="transition">
<xsl:call-template name="output-edge">
<xsl:with-param name="src" select="../../../@number"/>
<xsl:with-param name="dst" select="@state"/>
<xsl:with-param name="style">
<xsl:choose>
<xsl:when test="@symbol = 'error'">
<xsl:text>dotted</xsl:text>
</xsl:when>
<xsl:when test="@type = 'shift'">
<xsl:text>solid</xsl:text>
</xsl:when>
<xsl:otherwise>
<xsl:text>dashed</xsl:text>
</xsl:otherwise>
</xsl:choose>
</xsl:with-param>
<xsl:with-param name="label">
<xsl:if test="not(@symbol = 'error')">
<xsl:value-of select="@symbol"/>
</xsl:if>
</xsl:with-param>
</xsl:call-template>
</xsl:template>
<xsl:template name="output-node">
<xsl:param name="number"/>
<xsl:param name="label"/>
<xsl:text> </xsl:text>
<xsl:value-of select="$number"/>
<xsl:text> [label="</xsl:text>
<xsl:call-template name="escape">
<xsl:with-param name="subject" select="$label"/>
</xsl:call-template>
<xsl:text>"] </xsl:text>
</xsl:template>
<xsl:template name="output-edge">
<xsl:param name="src"/>
<xsl:param name="dst"/>
<xsl:param name="style"/>
<xsl:param name="label"/>
<xsl:text> </xsl:text>
<xsl:value-of select="$src"/>
<xsl:text> -> </xsl:text>
<xsl:value-of select="$dst"/>
<xsl:text> [style=</xsl:text>
<xsl:value-of select="$style"/>
<xsl:if test="$label and $label != ''">
<xsl:text> label="</xsl:text>
<xsl:call-template name="escape">
<xsl:with-param name="subject" select="$label"/>
</xsl:call-template>
<xsl:text>"</xsl:text>
</xsl:if>
<xsl:text>] </xsl:text>
</xsl:template>
<xsl:template name="escape">
<xsl:param name="subject"/> <!-- required -->
<xsl:call-template name="string-replace">
<xsl:with-param name="subject">
<xsl:call-template name="string-replace">
<xsl:with-param name="subject">
<xsl:call-template name="string-replace">
<xsl:with-param name="subject" select="$subject"/>
<xsl:with-param name="search" select="'\'"/>
<xsl:with-param name="replace" select="'\\'"/>
</xsl:call-template>
</xsl:with-param>
<xsl:with-param name="search" select="'"'"/>
<xsl:with-param name="replace" select="'\"'"/>
</xsl:call-template>
</xsl:with-param>
<xsl:with-param name="search" select="' '"/>
<xsl:with-param name="replace" select="'\n'"/>
</xsl:call-template>
</xsl:template>
<xsl:template name="string-replace">
<xsl:param name="subject"/>
<xsl:param name="search"/>
<xsl:param name="replace"/>
<xsl:choose>
<xsl:when test="contains($subject, $search)">
<xsl:variable name="before" select="substring-before($subject, $search)"/>
<xsl:variable name="after" select="substring-after($subject, $search)"/>
<xsl:value-of select="$before"/>
<xsl:value-of select="$replace"/>
<xsl:call-template name="string-replace">
<xsl:with-param name="subject" select="$after"/>
<xsl:with-param name="search" select="$search"/>
<xsl:with-param name="replace" select="$replace"/>
</xsl:call-template>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="$subject"/>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
</xsl:stylesheet>
|
