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Full Discussion: [Perl] Different printf formating for different print options
Top Forums Programming [Perl] Different printf formating for different print options Post 302776635 by durden_tyler on Wednesday 6th of March 2013 03:11:44 PM
Old 03-06-2013
Code:
$
$
$ cat -n example_2.pl
     1  #!/usr/bin/perl -w
     2  use strict;
     3  my $option = $ARGV[0];
     4  my %x = (
     5            0,
     6              [
     7                [ qw (%s %s %s %s %s) ],                      # format array ref
     8                [ qw (Value1 Value2 Value3 Value4 Value5) ],  # header array ref
     9                [ qw (one two three four five) ]              # data array ref
    10              ],
    11            1,
    12              [
    13                [ qw (%s %s %s) ],
    14                [ qw (Value1 Value2 Value3) ],
    15                [ qw (one two three) ]
    16              ],
    17            2,
    18              [
    19                [ qw (%s %s %s) ],
    20                [ qw (Value1 Value4 Value5) ],
    21                [ qw (one four five) ]
    22              ]
    23          );
    24  $option = 0 if (! defined $option) or (! defined $x{$option});
    25
    26  my $fmt  = join(",", @{$x{$option}->[0]})."\n";
    27  my @hdr  = @{$x{$option}->[1]};
    28  my @data = @{$x{$option}->[2]};
    29
    30  printf ($fmt, @hdr);
    31  printf ($fmt, @data);
$
$ perl example_2.pl 1
Value1,Value2,Value3
one,two,three
$
$ perl example_2.pl 2
Value1,Value4,Value5
one,four,five
$
$ perl example_2.pl 3
Value1,Value2,Value3,Value4,Value5
one,two,three,four,five
$
$ perl example_2.pl 4
Value1,Value2,Value3,Value4,Value5
one,two,three,four,five
$
$ perl example_2.pl 0
Value1,Value2,Value3,Value4,Value5
one,two,three,four,five
$
$ perl example_2.pl
Value1,Value2,Value3,Value4,Value5
one,two,three,four,five
$
$

 

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LEARN ABOUT SUNOS

unifdef

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, com-
       ments, single and double quotes of C syntax, but it does not do any including or interpretation of macros. Neither does it strip  out  com-
       ments, 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 construction, 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 5.10							    14 Jan 1992 							unifdef(1)
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