Still celebrating National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17

x
?
Solved

detect a scalar

Posted on 2000-02-24
7
Medium Priority
?
374 Views
Last Modified: 2010-05-18
hi, is there a way to detect a scalar whether it contains numbers or char?

thx

0
Comment
Question by:kitwei
[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
7 Comments
 

Accepted Solution

by:
scudweb earned 200 total points
ID: 2556526
number:
if ($yourscalar=~ /\d/)
{
}

char:
if ($yourscalar=~ /\w/)
{
}
0
 
LVL 84

Expert Comment

by:ozo
ID: 2556589
perldoc -q "How do I determine whether a scalar is a number/whole/integer/float"
0
 

Author Comment

by:kitwei
ID: 2556862
I don't have access to try the code until monday, and I must try it that day. I promise I will respond.
Thank you very much.
0
Concerto's Cloud Advisory Services

Want to avoid the missteps to gaining all the benefits of the cloud? Learn more about the different assessment options from our Cloud Advisory team.

 
LVL 5

Expert Comment

by:PC_User321
ID: 2561079
Hi kitwei,
This question is a repeat of question Q_10300771, which was asked (and answered) before this one appeared.

What test do you want to do on the data?
ozo and I assumed you wanted to know whether or not it _was_ a number, and scudweb assumed you wanted to know if it contained a digit (0-9) anywhere within it.
e.g. my test would regard "1234" and "12  34" as different, but scudweb's test would regard them as the same.
0
 
LVL 5

Expert Comment

by:PC_User321
ID: 2561087
I have though of a better example
   "1234" and ">/34".
0
 

Author Comment

by:kitwei
ID: 2561519
don't worry, I'll try all cases, I'm learning Perl, so I don't mind getting more info and giving away pts
0
 

Author Comment

by:kitwei
ID: 2566641
great, thanks
0

Featured Post

On Demand Webinar: Networking for the Cloud Era

Did you know SD-WANs can improve network connectivity? Check out this webinar to learn how an SD-WAN simplified, one-click tool can help you migrate and manage data in the cloud.

Question has a verified solution.

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

I have been pestered over the years to produce and distribute regular data extracts, and often the request have explicitly requested the data be emailed as an Excel attachement; specifically Excel, as it appears: CSV files confuse (no Red or Green h…
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.…
Explain concepts important to validation of email addresses with regular expressions. Applies to most languages/tools that uses regular expressions. Consider email address RFCs: Look at HTML5 form input element (with type=email) regex pattern: T…
Six Sigma Control Plans

722 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