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- YACC(1) AMIGA (July 15, 1990) YACC(1)
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- NAME
- Yacc - an LALR(1) parser generator
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- SYNOPSIS
- yacc [ -dlrtv ] [ -b file_prefix ] [ -p symbol_prefix ]
- filename
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- DESCRIPTION
- Yacc reads the grammar specification in the file filename
- and generates an LR(1) parser for it. The parsers consist
- of a set of LALR(1) parsing tables and a driver routine
- written in the C programming language. Yacc normally writes
- the parse tables and the driver routine to the file y.tab.c.
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- The following options are available:
-
- -b file_prefix
- The -b option changes the prefix prepended to the
- output file names to the string denoted by
- file_prefix. The default prefix is the character
- y.
-
- -d The -d option causes the header file y.tab.h to be
- written.
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- -l If the -l option is not specified, yacc will
- insert #line directives in the generated code.
- The #line directives let the C compiler relate
- errors in the generated code to the user's
- original code. If the -l option is specified,
- yacc will not insert the #line directives. #line
- directives specified by the user will be retained.
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- -p symbol_prefix
- The -p option changes the prefix prepended to
- yacc-generated symbols to the string denoted by
- symbol_prefix. The default prefix is the string
- yy.
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- -r The -r option causes yacc to produce separate
- files for code and tables. The code file is named
- y.code.c, and the tables file is named y.tab.c.
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- -t The -t option changes the preprocessor directives
- generated by yacc so that debugging statements
- will be incorporated in the compiled code.
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- -v The -v option causes a human-readable description
- of the generated parser to be written to the file
- y.output.
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- If the environment variable TMPDIR is set, the string
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- Page 1 (printed 7/9/93)
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- YACC(1) AMIGA (July 15, 1990) YACC(1)
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- denoted by TMPDIR will be used as the name of the directory
- where the temporary files are created.
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- FILES
- y.code.c
- y.tab.c
- y.tab.h
- y.output
- /tmp/yacc.aXXXXXX
- /tmp/yacc.tXXXXXX
- /tmp/yacc.uXXXXXX
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- DIAGNOSTICS
- If there are rules that are never reduced, the number of
- such rules is reported on standard error. If there are any
- LALR(1) conflicts, the number of conflicts is reported on
- standard error.
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- Page 2 (printed 7/9/93)
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