1YACC: error message
2Usage: YACC [options] filename
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4Options:
5  -b file_prefix        set filename prefix (default "y.")
6  -B                    create a backtracking parser
7  -d                    write definitions (.tab.h)
8  -H defines_file       write definitions to defines_file
9  -i                    write interface (y.tab.i)
10  -g                    write a graphical description
11  -l                    suppress #line directives
12  -L                    enable position processing, e.g., "%locations"
13  -o output_file        (default ".tab.c")
14  -p symbol_prefix      set symbol prefix (default "yy")
15  -P                    create a reentrant parser, e.g., "%pure-parser"
16  -r                    produce separate code and table files (y.code.c)
17  -s                    suppress #define's for quoted names in %token lines
18  -t                    add debugging support
19  -v                    write description (y.output)
20  -V                    show version information and exit
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