 @@ -1,14 +1,14 @@
-.\"	$NetBSD: yacc.1,v 1.7 2018/07/24 05:40:15 wiz Exp $
+.\"	$NetBSD: yacc.1,v 1.8 2020/07/26 23:18:06 uwe Exp $
 .\"
 .\" Copyright (c) 1989, 1990 The Regents of the University of California.
 .\" All rights reserved.
 .\"
 .\" This code is derived from software contributed to Berkeley by
 .\" Robert Paul Corbett.
 .\"
 .\" Redistribution and use in source and binary forms, with or without
 .\" modification, are permitted provided that the following conditions
 .\" are met:
 .\" 1. Redistributions of source code must retain the above copyright
 .\"    notice, this list of conditions and the following disclaimer.
 .\" 2. Redistributions in binary form must reproduce the above copyright
 @@ -22,27 +22,27 @@
 .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 .\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
 .\"	from: @(#)yacc.1	5.7 (Berkeley) 7/30/91
 .\"	from: Id: yacc.1,v 1.24 2014/10/06 00:03:48 tom Exp
-.\"	$NetBSD: yacc.1,v 1.7 2018/07/24 05:40:15 wiz Exp $
+.\"	$NetBSD: yacc.1,v 1.8 2020/07/26 23:18:06 uwe Exp $
 .\"
 .Dd October 5, 2014
 .Dt YACC 1
 .Os
 .Sh NAME
 .Nm yacc
 .Nd an
 .Tn LALR(1)
 parser generator
 .Sh SYNOPSIS
 .Nm
 .Op Fl BdgilLPrtvVy
 .Op Fl b Ar file_prefix
 @@ -414,27 +414,27 @@ Make the parser's names for tokens avail
 array.
 However,
 .Nm
 yacc
 does not predefine
 .Dq $end ,
 .Dq $error
 or
 .Dq $undefined
 in this array.
 .El
 .Sh PORTABILITY
 According to Robert Corbett:
-.Bd -offset indent
+.Bd -filled -offset indent
 Berkeley Yacc is an LALR(1) parser generator.
 Berkeley Yacc has been made as compatible as possible with AT\*[Am]T Yacc.
 Berkeley Yacc can accept any input specification that conforms to the
 AT\*[Am]T Yacc documentation.
 Specifications that take advantage of undocumented features of AT\*[Am]T
 Yacc will probably be rejected.
 .Ed
 .Pp
 The rationale in
 .%U http://pubs.opengroup.org/onlinepubs/9699919799/utilities/yacc.html
 documents some features of AT\*[Am]T yacc which are no longer required for
 POSIX compliance.
 .Pp
 @@ -465,27 +465,27 @@ and
 .Fn yyerror
 without providing prototypes.
 .Pp
 .Xr bison 1
 support for
 .Dq %expect
 is broken in more than one release.
 For best results using
 .Xr bison 1 ,
 delete that directive.
 .Pp
 .Xr bison 1
 no equivalent for some of
-.Nm 's
+.Nm Ns 's
 command-line options, relying on directives embedded in the grammar file.
 .Pp
 .Xr bison 1
 .Fl y
 option does not affect bison's lack of support for
 features of AT\*[Am]T yacc which were deemed obsolescent.
 .Pp
 .Nm
 accepts multiple parameters with
 .Dq %lex-param
 and
 .Dq %parse-param
 in two forms
 @@ -512,27 +512,26 @@ to the destructor declared using
 .Pp
 .Xr bison 1
 puts the additional parameters
 .Dv first
 for
 .Fn yyparse
 and
 .Fn yyerror
 but
 .Dv last
 for destructors.
 .Nm
 matches this behavior.
 .El
 .Sh ENVIRONMENT
 The following environment variable is referenced by
 .Nm :
 .Bl -tag -width TMPDIR
 .It Ev TMPDIR
 If the environment variable
 .Ev TMPDIR
 is set, the string denoted by
 .Ev TMPDIR
 will be used as the name of the directory where the temporary
 files are created.
 .El
 .Sh TABLES