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Diff for /src/usr.bin/unifdef/unifdef.1 between version 1.14 and 1.15

version 1.14, 2003/10/23 09:09:13 version 1.15, 2007/04/02 14:12:51
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 .Sh SYNOPSIS  .Sh SYNOPSIS
 .Nm  .Nm
 .Op Fl ceklst  .Op Fl ceklst
   .Sm off
 .Oo  .Oo
 .Fl I Ns Ar path  .Fl D Ar sym
 .Fl D Ns Ar sym  .Op = Ar val
 .Ns Op = Ns Ar val  
 .Fl U Ns Ar sym  
 .Fl iD Ns Ar sym  
 .Ns Op = Ns Ar val  
 .Fl iU Ns Ar sym  
 .Oc  .Oc
 .Ar ...  .Op Fl I Ar path
   .Oo
   .Fl iD Ar sym
   .Op = Ar val
   .Oc
   .Op Fl iU Ar sym
   .Op Fl U Ar sym
   .Sm on
 .Op Ar file  .Op Ar file
 .Sh DESCRIPTION  .Sh DESCRIPTION
 The  The
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 It spots unusually-formatted preprocessor directives  It spots unusually-formatted preprocessor directives
 and knows when the layout is too odd to handle.  and knows when the layout is too odd to handle.
 .Pp  .Pp
 Available options:  The options are as follows:
 .Bl -tag -width indent -compact  
 .It Fl D Ns Ar sym  
 .Ns Op = Ns Ar val  
 Specify that a symbol is defined,  
 and optionally specify what value to give it  
 for the purpose of handling  
 .Ic #if  
 and  
 .Ic #elif  
 directives.  
 .Pp  .Pp
 .It Fl U Ns Ar sym  .Bl -tag -width indent -compact
 Specify that a symbol is undefined.  
 If the same symbol appears in more than one argument,  
 the last occurrence dominates.  
 .Pp  
 .It Fl c  .It Fl c
 If the  If the
 .Fl c  .Fl c
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 i.e., the lines that would have been removed or blanked  i.e., the lines that would have been removed or blanked
 are retained and vice versa.  are retained and vice versa.
 .Pp  .Pp
   .Sm off
   .It Xo
   .Fl D Ar sym
   .Op = Ar val
   .Xc
   .Sm on
   Specify that a symbol is defined,
   and optionally specify what value to give it
   for the purpose of handling
   .Ic #if
   and
   .Ic #elif
   directives.
   .Pp
 .It Fl e  .It Fl e
 Because  Because
 .Nm  .Nm
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 where possible,  where possible,
 such lines are left unprocessed instead of reporting an error.  such lines are left unprocessed instead of reporting an error.
 .Pp  .Pp
   .Sm off
   .It Xo
   .Fl iD Ar sym
   .Op = Ar val
   .Xc
   .Sm on
   .It Fl iU Ns Ar sym
   Ignore
   .Ic #ifdef Ns s .
   If your C code uses
   .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
   .Fl iU Ns Ar sym ,
   similar to
   .Sm off
   .Fl D Ar sym Op = Ar val
   .Sm on
   and
   .Fl U Ns Ar sym .
   .Pp
 .It Fl k  .It Fl k
 Process  Process
 .Ic #if  .Ic #if
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 which is useful  which is useful
 for plain text.  for plain text.
 .Pp  .Pp
 .It Fl iD Ns Ar sym  .It Fl U Ns Ar sym
 .Ns Op = Ns Ar val  Specify that a symbol is undefined.
 .It Fl iU Ns Ar sym  If the same symbol appears in more than one argument,
 Ignore  the last occurrence dominates.
 .Ic #ifdef Ns s .  .Pp
 If your C code uses  
 .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  
 .Fl iD Ns Ar sym  
 .Ns Oo = Ns Ar val Oc  
 and  
 .Fl iU Ns Ar sym  
 similar to  
 .Fl D Ns Ar sym  
 .Ns Op = Ns Ar val  
 and  
 .Fl U Ns Ar sym  
 above.  
 .El  .El
 .Pp  .Pp
 The  The
Legend:
Removed from v.1.14  
changed lines
  Added in v.1.15