src/usr.bin/unifdef/unifdef.1 - diff

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-version 1.19, 2014/04/18 21:11:34
+version 1.20, 2014/04/24 21:22:05
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+ .\"     $OpenBSD$
  .\" Copyright (c) 1985, 1991, 1993
  .\"     The Regents of the University of California.  All rights reserved.
  .\" Copyright (c) 2002 - 2013 Tony Finch <dot@dotat.at>.  All rights reserved.
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+Line 193
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  If the same macro appears in more than one argument,
  the last occurrence dominates.
  .Pp
- .It Fl iD Ns Ar sym Ns Op = Ns Ar val
+ .Sm off
+ .It Xo
+ .Fl iD Ar sym
+ .Op = Ar val
+ .Xc
+ .Sm on
  .It Fl iU Ns Ar sym
- C strings, comments,
+ Ignore
- and line continuations
+ .Ic #ifdef Ns s .
- are ignored within
+ If your C code uses
- .Ic #ifdef
+ .Ic #ifdef Ns s
+ to delimit non-C lines,
+ such as comments
+ or code which is under construction,
+ then you must tell
+ .Nm
+ which symbols are used for that purpose so that it will not try to parse
+ comments and line continuations
+ inside those
+ .Ic #ifdef Ns s .
+ One specifies ignored symbols with
+ .Sm off
+ .Fl iD Ar sym Op = Ar val
+ .Sm on
  and
- .Ic #ifndef
+ .Fl iU Ns Ar sym ,
- blocks
+ similar to
- controlled by macros
+ .Sm off
- specified with these options.
+ .Fl D Ar sym Op = Ar val
+ .Sm on
+ and
+ .Fl U Ns Ar sym .
  .Pp
  .It Fl f Ar defile
  The file