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Typical Search and repalce with Regular expression

hydpm
User

Sep 5, 2008, 12:46 PM

Post #1 of 4 (1747 views)

Typical Search and repalce with Regular expression	Can't Post

Hi,

I wanted to do the following.

$Input may have one of the following values:

10 m

1 h

2 h

3 d

4 w

What i need to do is :

I should grab the one of the above values from $input then search and repalce like below:

10 min/s

1 hour

2 hours

3 day/s

4 weeks

Where i blocked is :

(\S+) mathces other than spaces i.e m,h,h/s,d,w. The conversion will be if "1 h" found then it should be converted to "1 hour" . If "2 h" then it should be converted to "2 hours". If it is "10 m" then to "10 min/s" etc. How do i make the expression conditionally here. Need help on that?

The more tricky on hour part.

$input=~s/(\d+)(\s+)(\S+)/$1$2(Need Help here)/

Thanks,

Raj

KevinR
Veteran

Sep 5, 2008, 1:00 PM

Post #2 of 4 (1745 views)

Re: [wingsof5r] Typical Search and repalce with Regular expression [In reply to]	Can't Post

Probably the simplest is just use a hash to store the pattern replacement strings and then something like this:

Code

my %conversion = ( 
   m => 'min', 
   h => 'hour', 
   d => 'day', 
   w => 'week' 
); 
 
while (<DATA>) { 
   chomp; 
   /^(\d+)(\s+)(\S+)$/; 
   my $symbol = $conversion{lc($3)}; 
   if ($1 > 1) { 
      $symbol .= 's'; 
   } 
   print "$1$2$symbol\n"; 
} 
__DATA__ 
10 m 
1 h 
2 h 
3 d 
4 w

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hydpm
User

Sep 5, 2008, 1:05 PM

Post #3 of 4 (1743 views)

Re: [KevinR] Typical Search and repalce with Regular expression [In reply to]	Can't Post

Kevin,

You are so spontaneous. While typing a post i am thinking of you. i thought you might the first one gonna reply.

Thanks for making my guess true. I wish to meet you one day.....:)

Thank you very much once again.....

Raj

KevinR
Veteran

Sep 5, 2008, 1:11 PM

Post #4 of 4 (1739 views)

Re: [wingsof5r] Typical Search and repalce with Regular expression [In reply to]	Can't Post

You're welcome. Cool

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