Solved

adding a comma to numeric value xml/perl

Posted on 2007-03-29
5
211 Views
Last Modified: 2010-04-16
I have an xml variable in a script that hols a value like 2084. I want to convert it into 2,084. (put a comma in it) How do I do it?  Using Perl?

Thanks.
0
Comment
Question by:anup001
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
5 Comments
 
LVL 48

Accepted Solution

by:
Tintin earned 300 total points
ID: 18821257

$num =~ s/(^[-+]?\d+?(?=(?>(?:\d{3})+)(?!\d))|\G\d{3}(?=\d))/$1,/g;

0
 

Author Comment

by:anup001
ID: 18821295
what is the input variable here?
0
 
LVL 48

Assisted Solution

by:Tintin
Tintin earned 300 total points
ID: 18821355
$num is the variable.

So if you have

my $num=2084;
$num =~ s/(^[-+]?\d+?(?=(?>(?:\d{3})+)(?!\d))|\G\d{3}(?=\d))/$1,/g;
print "Num is $num\n";

The output will be

Num is 2,084

0
 
LVL 84

Assisted Solution

by:ozo
ozo earned 150 total points
ID: 18821739
perldoc -q "How can I output my numbers with commas added"
Found inperlfaq5.pod
       How can I output my numbers with commas added?

       This subroutine will add commas to your number:

               sub commify {
                  local $_  = shift;
                  1 while s/^([-+]?\d+)(\d{3})/$1,$2/;
                  return $_;
                  }

       This regex from Benjamin Goldberg will add commas to numbers:

          s/(^[-+]?\d+?(?=(?>(?:\d{3})+)(?!\d))|\G\d{3}(?=\d))/$1,/g;

       It is easier to see with comments:

          s/(
              ^[-+]?            # beginning of number.
              \d{1,3}?          # first digits before first comma
              (?=               # followed by, (but not included in the match) :
                 (?>(?:\d{3})+) # some positive multiple of three digits.
                 (?!\d)         # an *exact* multiple, not x * 3 + 1 or whatever.
              )
             |                  # or:
              \G\d{3}           # after the last group, get three digits
              (?=\d)            # but they have to have more digits after them.
          )/$1,/xg;
0
 
LVL 17

Assisted Solution

by:mjcoyne
mjcoyne earned 50 total points
ID: 18822468
Yet another method:
#!/usr/bin/perl -w
use strict;

my $number = "1234567.00";
$number = commify($number);

print "$number\n";

sub commify {
    my $input = shift;
    $input = reverse $input;
    $input =~ s<(\d\d\d)(?=\d)(?!\d*\.)><$1,>g;
    $input =  reverse $input;
    return $input;
}
0

Featured Post

Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Redirecting an Outlook attachment to a specific folder? 3 77
powershell md/mkdir/New-item   -Quiet 10 401
Hta File displays dynamic File names 4 65
Notepad++ Question 11 28
Email validation in proper way is  very important validation required in any web pages. This code is self explainable except that Regular Expression which I used for pattern matching. I originally published as a thread on my website : http://www…
There are many situations when we need to display the data in sorted order. For example: Student details by name or by rank or by total marks etc. If you are working on data driven based projects then you will use sorting techniques very frequently.…
This tutorial will teach you the core code needed to finalize the addition of a watermark to your image. The viewer will use a small PHP class to learn and create a watermark.
In this fifth video of the Xpdf series, we discuss and demonstrate the PDFdetach utility, which is able to list and, more importantly, extract attachments that are embedded in PDF files. It does this via a command line interface, making it suitable …

759 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question