Decimal alignment and loss of zero at print?

Zo has asked for the wisdom of the Perl Monks concerning the following question:

To all the Monks here who might remember my past questions, I think I'm getting better... but yet again another question... This is my output file:

data   data   data   data   7,843,391.58
xyz    xzy    xyz    ....   12,224,675.68
abc    ~~~    ~~~    ....   1,339,203.94
    (more data)             21,407,271.2
     (more data)            16,728,929.69
                            16,728,929.69
[download]

The following code is what I used; was taken from the Q and A section (thanks vroom) to insert commas.

sub addcommas{
   my ($text)= $nocomma;
   $text=reverse $text;
   $text=~s/(\d\d\d)(?=\d)(?!\d*\.)/$1,/g;
   $text=scalar reverse $text;
   return $text;
}
[download]

My question/s is/are how can I: - align to the right the final column w/ the dollar amounts? (when printing out.. this is the end of a string print with other data left out for this example) or align the decimals? and - how to stop from dropping the end zero of the cents, where it's missing? This is my print statement how I got my final printout (where $comma is the returned variable caught from the above function):


for ($p = 0; $p < @a_table; $p++){
        @a_print = split (/\t/, $a_table[$p]);
        $nocomma = $a_print[5] / 100;
        $comma = &addcommas();
        print AUDIT "$a_print[0]\t$a_print[1]\t$read_time\t$a_print[3]
+\t$comma\n";
} # end for loop
[download]

My final output is all correct, just the problems w/alignment and the loss of zero at end of cents... thanks for any/all help.

Comment on Decimal alignment and loss of zero at print? Select or Download Code

Replies are listed 'Best First'.
RE: Decimal alignment and loss of zero at print? by Shendal (Hermit) on Oct 25, 2000 at 22:43 UTC
You will want to look at printf (the formatting for the string is at sprintf). Cheers, Shendal	[reply]
RE: Decimal alignment and loss of zero at print? by KM (Priest) on Oct 25, 2000 at 22:43 UTC
Sounds like a job for format! Take a look at 'perldoc perlform' for examples and use. But, first take a peek at printf() or sprintf(). But, formats are good to read about anyways ;) Cheers, KM	[reply]
Re: Decimal alignment and loss of zero at print? by runrig (Abbot) on Oct 25, 2000 at 22:43 UTC
sprintf the data before adding commas.	[reply]

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