Don't mention bison.simple and bison.hairy, which are obsolete.
.B \-\-fixed-output-files
]
file
.B \-\-fixed-output-files
]
file
+.br
+.B yacc
+[
+.I "similar options and operands"
+]
.SH DESCRIPTION
.I Bison
is a parser generator in the style of
.SH DESCRIPTION
.I Bison
is a parser generator in the style of
.IR yacc 's
output file name conventions.
Thus, the following shell script can substitute for
.IR yacc 's
output file name conventions.
Thus, the following shell script can substitute for
+.I yacc
+and is often installed as
-.SH FILES
-/usr/local/share/bison/bison.simple simple parser
-.br
-/usr/local/share/bison/bison.hairy complicated parser
-.SH "ENVIRONMENT VARIABLES"
-.TP
-.SM BISON_SIMPLE
-If this is set, it specifies the location in which the
-.B bison.simple
-parser can be found.
-.TP
-.SM BISON_HAIRY
-If this is set, it specifies the location in which the
-.B bison.hairy
-parser can be found.
.SH SEE ALSO
.IR yacc (1)
.br
.SH SEE ALSO
.IR yacc (1)
.br