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

I am trying to join three variables with a string to form new, longer string with "_" in between each part, I have tried the Camel book and am not getting very far, is this the correct (or close to) the correct syntax? 
$Launch.'_'.$Expire.'_'.$area.'_'.'description.asp';

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In the end I want the final string to read: $Launch_$Expire_$area_description.asp as an asp file name. thanks, Bill

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Re: Trying to join variables
by Masem (Monsignor) on May 18, 2001 at 23:04 UTC
    That will work (of course, you need to set a variable to equal that, or you get no results), but it might be easier to use the join function: 
    $file = join '_', ( $Launch, $Expire, $area, 'description.asp');

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    Dr. Michael K. Neylon - mneylon-pm@masemware.com || "You've left the lens cap of your mind on again, Pinky" - The Brain
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[d/l]
      Ok, so after that I am going to have three different possible $file variables and depending on certain conditions i want to return one of the three to be passed into another sub rountine, how can I set it up so that I can pass in the return value from my file sub whatever it is, to another sub and do it all in the main program, Something along these lines: 
      #Run File sub routine that returns either file1, file2 or file3

#call next routine and pass in that returned value

Next_sub(Whatever the returned value is..);

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      I am just looking for a way to do this without calling the next sub routine from the file sub conditional statements, because both the routines need to be as general and reuseable as possible. Thanks
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        # assume getFile returns the file1, file2, or file3 
        Next_sub(getFile(@args));

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Re: Trying to join variables
by runrig (Abbot) on May 18, 2001 at 23:31 UTC
    Just AWTDI: $file = "${Launch}_${Expire}_${area}_description.asp";
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      YAWTDI: 
      $file = "$Launch\_$Expire\_$area\_description.asp";

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         MeowChow                                   
               s aamecha.s a..a\u$&owag.print
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Re: Trying to join variables
by blue_cowdawg (Monsignor) on May 19, 2001 at 00:28 UTC 
    my $newstring=join("_",$Launch,$Expire,$area,'description.asp');

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    Bad word, but I am assuming you don't really want the dollar signs in the resultant string. 

    ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Peter L. Berghold --- Peter@Berghold.Net
"Those who fail to learn from history are condemned to repeat it."
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