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OpenSolaris 2009.06 - man page for unifdef (opensolaris section 1)

unifdef(1)				  User Commands 			       unifdef(1)

NAME
       unifdef - resolve and remove ifdef'ed lines from C program source

SYNOPSIS
       unifdef [-clt] [-Dname] [-Uname] [-iDname] [-iUname] ...
	    [filename]

DESCRIPTION
       unifdef	removes  ifdefed  lines from a file while otherwise leaving the file alone. It is
       smart enough to deal with the nested ifdefs, comments, single and double quotes of C  syn-
       tax,  but  it does not do any including or interpretation of macros. Neither does it strip
       out comments, though it recognizes and ignores them. You specify which  symbols	you  want
       defined	with -D options, and which you want undefined with -U options. Lines within those
       ifdefs will be copied to the output, or removed, as appropriate. Any ifdef, ifndef,  else,
       and endif lines associated with filename will also be removed.

       ifdefs  involving symbols you do not specify are untouched and copied out along with their
       associated ifdef, else, and endiff1 lines.

       If an ifdefX occurs nested inside another ifdefX, then the inside ifdef is treated  as  if
       it were an unrecognized symbol. If the same symbol appears in more than one argument, only
       the first occurrence is significant.

       unifdef copies its output to the standard output and will take its input from the standard
       input if no filename argument is given.

OPTIONS
       The following options are supported:

       -c	  Complement  the normal operation. Lines that would have been removed or blanked
		  are retained, and vice versa.

       -l	  Replace ``lines removed'' lines with blank lines.

       -t	  Plain text option. unifdef refrains from attempting to recognize  comments  and
		  single and double quotes.

       -Dname	  Lines associated with the defined symbol name.

       -Uname	  Lines associated with the undefined symbol name.

       -iDname	  Ignore,  but	print  out, lines associated with the defined symbol name. If you
		  use ifdefs to delimit non-C lines, such as comments or code which is under con-
		  struction,  then  you must tell unifdef which symbols are used for that purpose
		  so that it will not try to parse for quotes and comments within them.

       -iUname	  Ignore, but print out, lines associated with the undefined symbol name.

EXIT STATUS
       The following exit values are returned:

       0    Successful operation.

       1    Operation failed.

ATTRIBUTES
       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWbtool 		   |
       +-----------------------------+-----------------------------+

SEE ALSO
       diff(1), attributes(5)

DIAGNOSTICS
       Premature EOF	Inappropriate else or endif.

SunOS 5.11				   14 Jan 1992				       unifdef(1)


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