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.\" @(#)yacc.1 5.7 (Berkeley) 7/30/91
reads the grammar specification in the file
The parsers consist of a set of
parsing tables and a driver routine
written in the C programming language.
normally writes the parse tables and the driver routine to the file
The following options are available:
option changes the prefix prepended to the output file names to
The default prefix is the character
option causes the header file
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.
will not insert the \#line directives.
\&\#line directives specified by the user will be retained.
to produce separate files for code and tables.
and the tables file is named
option changes the preprocessor directives generated by
so that debugging statements will be incorporated in the compiled code.
option causes a human-readable description of the generated parser to
The following environment variable is referenced by
If the environment variable
is set, the string denoted by
will be used as the name of the directory where the temporary
The names of the tables generated by this version of
.Bl -tag -width /tmp/yacc.uXXXXXXXX -compact
If there are rules that are never reduced, the number of such rules is
written to the standard error.
conflicts, the number of conflicts is also written