RE: determining variable types
Do you realize you've posted this message three times so far today and I think yesterday as well? Check your mail prog. -Original Message- From: OROSZI Balzs [mailto:[EMAIL PROTECTED]] Sent: Tuesday, January 14, 2003 3:56 PM To: [EMAIL PROTECTED] Subject: determining variable types Hello! Is it possible to get the type of a variable at run time? Suppose I have $var which may be a ref to a hash, or a ref to an array or a scalar (maybe a ref to it). Should I try to hack it out from the address (the weird thing, for example ARRAY(0x...))? Or is there any other way? Please, answer as soon as you can. I need to know this in short time. Thank you. -- Greetings, Balzs P.S.: Sorry, if I sent it twice -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: determining variable types
Hi -
-Original Message-
From: OROSZI Balzs [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, January 14, 2003 11:56 AM
To: [EMAIL PROTECTED]
Subject: determining variable types
Hello!
Is it possible to get the type of a variable at run time?
Suppose I have $var which may be a ref to a hash, or a ref to an
array or a
scalar (maybe a ref to it).
Should I try to hack it out from the address
(the weird thing, for example ARRAY(0x...))?
Or is there any other way?
Please, answer as soon as you can. I need to know this in short time.
Thank you.
--
Greetings,
Balzs
P.S.: Sorry, if I sent it twice
Yes.
Use the perl build in function 'ref':
if(ref $variable eq 'HASH') { ... }
you can use HASH', 'ARRAY', 'SCALAR' (and other, less common ones).
if (not ref $variable) { ... means it's not a reference ... }
Refer to the Camel book or perlfunc doc for more details.
Aloha = Beau;
--
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RE: determining variable types
-Original Message- From: OROSZI Balzs [mailto:[EMAIL PROTECTED]] Sent: Wednesday, January 15, 2003 10:07 AM To: [EMAIL PROTECTED] Subject: determining variable types Hello! Is it possible to get the type of a variable at run time (hash, array, scalar)? Suppose I have $var which may be a ref to a hash, or a ref to an array or a scalar (maybe a ref to it). Should I try to hack it out from the address (the weird thing, for example ARRAY(0x...), SCALAR(0x...))? Or is there any other way? Please, answer as soon as you can. I need to know this in short time. I greatly apreciate any help. Thank you. -- Greetings, Balzs read the manpage about the 'ref' function perldoc -f ref -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: determining variable types
Hello! Toby Stuart wrote: read the manpage about the 'ref' function perldoc -f ref Wow. Thanks a lot. You have just saved my life :) Now I won't need to hack with regexp's. Thank you. -- Greetings, Balzs -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
