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1 .\" DO NOT MODIFY THIS FILE! It was generated by help2man 1.36.
2 .TH BISON "1" "May 2008" "bison 2.3b" "User Commands"
3 .SH NAME
4 bison \- GNU Project parser generator (yacc replacement)
5 .SH SYNOPSIS
6 .B bison
7 [\fIOPTION\fR]... \fIFILE\fR
8 .SH DESCRIPTION
9 .I Bison
10 is a parser generator in the style of
11 .IR yacc (1).
12 It should be upwardly compatible with input files designed
13 for
14 .IR yacc .
15 .PP
16 Input files should follow the
17 .I yacc
18 convention of ending in
19 .BR .y .
20 Unlike
21 .IR yacc ,
22 the generated files do not have fixed names, but instead use the prefix
23 of the input file.
24 Moreover, if you need to put
25 .I C++
26 code in the input file, you can end his name by a C++-like extension
27 (.ypp or .y++), then bison will follow your extension to name the
28 output file (.cpp or .c++).
29 For instance, a grammar description file named
30 .B parse.yxx
31 would produce the generated parser in a file named
32 .BR parse.tab.cxx ,
33 instead of
34 .IR yacc 's
35 .B y.tab.c
36 or old
37 .I Bison
38 version's
39 .BR parse.tab.c .
40 .PP
41 This description of the options that can be given to
42 .I bison
43 is adapted from the node
44 .B Invocation
45 in the
46 .B bison.texinfo
47 manual, which should be taken as authoritative.
48 .PP
49 .I Bison
50 supports both traditional single-letter options and mnemonic long
51 option names. Long option names are indicated with
52 .B \-\-
53 instead of
54 .BR \- .
55 Abbreviations for option names are allowed as long as they
56 are unique. When a long option takes an argument, like
57 .BR \-\-file-prefix ,
58 connect the option name and the argument with
59 .BR = .
60 .PP
61 Generate LALR(1) and GLR parsers.
62 .PP
63 Mandatory arguments to long options are mandatory for short options too.
64 The same is true for optional arguments.
65 .SS "Operation modes:"
66 .TP
67 \fB\-h\fR, \fB\-\-help\fR
68 display this help and exit
69 .TP
70 \fB\-V\fR, \fB\-\-version\fR
71 output version information and exit
72 .TP
73 \fB\-\-print\-localedir\fR
74 output directory containing locale\-dependent data
75 .TP
76 \fB\-\-print\-datadir\fR
77 output directory containing skeletons and XSLT
78 .TP
79 \fB\-y\fR, \fB\-\-yacc\fR
80 emulate POSIX Yacc
81 .TP
82 \fB\-W\fR, \fB\-\-warnings\fR=\fI[CATEGORY]\fR
83 report the warnings falling in CATEGORY
84 .SS "Parser:"
85 .TP
86 \fB\-L\fR, \fB\-\-language\fR=\fILANGUAGE\fR
87 specify the output programming language
88 .TP
89 \fB\-S\fR, \fB\-\-skeleton\fR=\fIFILE\fR
90 specify the skeleton to use
91 .TP
92 \fB\-t\fR, \fB\-\-debug\fR
93 instrument the parser for debugging
94 .TP
95 \fB\-\-locations\fR
96 enable locations computation
97 .TP
98 \fB\-p\fR, \fB\-\-name\-prefix\fR=\fIPREFIX\fR
99 prepend PREFIX to the external symbols
100 .TP
101 \fB\-l\fR, \fB\-\-no\-lines\fR
102 don't generate `#line' directives
103 .TP
104 \fB\-k\fR, \fB\-\-token\-table\fR
105 include a table of token names
106 .SS "Output:"
107 .TP
108 \fB\-\-defines\fR[=\fIFILE\fR]
109 also produce a header file
110 .TP
111 \fB\-d\fR
112 likewise but cannot specify FILE (for POSIX Yacc)
113 .TP
114 \fB\-r\fR, \fB\-\-report\fR=\fITHINGS\fR
115 also produce details on the automaton
116 .TP
117 \fB\-\-report\-file\fR=\fIFILE\fR
118 write report to FILE
119 .TP
120 \fB\-v\fR, \fB\-\-verbose\fR
121 same as `\-\-report=state'
122 .TP
123 \fB\-b\fR, \fB\-\-file\-prefix\fR=\fIPREFIX\fR
124 specify a PREFIX for output files
125 .TP
126 \fB\-o\fR, \fB\-\-output\fR=\fIFILE\fR
127 leave output to FILE
128 .TP
129 \fB\-g\fR, \fB\-\-graph\fR[=\fIFILE\fR]
130 also output a graph of the automaton
131 .TP
132 \fB\-x\fR, \fB\-\-xml\fR[=\fIFILE\fR]
133 also output an XML report of the automaton
134 (the XML schema is experimental)
135 .SS "Warning categories include:"
136 .TP
137 `midrule\-values'
138 unset or unused midrule values
139 .TP
140 `yacc'
141 incompatibilities with POSIX YACC
142 .TP
143 `all'
144 all the warnings
145 .TP
146 `no\-CATEGORY'
147 turn off warnings in CATEGORY
148 .TP
149 `none'
150 turn off all the warnings
151 .TP
152 `error'
153 treat warnings as errors
154 .SS "THINGS is a list of comma separated words that can include:"
155 .TP
156 `state'
157 describe the states
158 .TP
159 `itemset'
160 complete the core item sets with their closure
161 .TP
162 `lookahead'
163 explicitly associate lookahead tokens to items
164 .TP
165 `solved'
166 describe shift/reduce conflicts solving
167 .TP
168 `all'
169 include all the above information
170 .TP
171 `none'
172 disable the report
173 .SH AUTHOR
174 Written by Robert Corbett and Richard Stallman.
175 .SH "REPORTING BUGS"
176 Report bugs to <bug\-bison@gnu.org>.
177 .SH COPYRIGHT
178 Copyright \(co 2008 Free Software Foundation, Inc.
179 .br
180 This is free software; see the source for copying conditions. There is NO
181 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
182 .SH "SEE ALSO"
183 .BR lex (1),
184 .BR flex (1),
185 .BR yacc (1).
186 .PP
187 The full documentation for
188 .B bison
189 is maintained as a Texinfo manual. If the
190 .B info
191 and
192 .B bison
193 programs are properly installed at your site, the command
194 .IP
195 .B info bison
196 .PP
197 should give you access to the complete manual.