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PERL; input string has a $ sign...what to do?

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  • 06-03-2007 9:45pm
    #1
    Mr. Flibble
    Registered Users Posts: 2,364 ✭✭✭


    I'm trying to extract the number '2' in the line "Blinds are now $1/$2" using regular expressions in perl. I'm running into problems because of the $ sign, it being the symbol used to denote variables in perl.

    Anyone know how I can get around this problem?

    edit: think I've got it. Stick extra quotes around it.


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    #2
    daymobrew
    Registered Users Posts: 6,509 ✭✭✭daymobrew


    You can always backslash the $ symbol to tell the regex engine that you mean it literally. 
    if ( /Blinds are now \$1/\$(\d)/ ) {
  $TheNumberTwo = $1;  # == 2.
}


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    #3
    Mr. Flibble
    Registered Users Posts: 2,364 ✭✭✭Mr. Flibble


    The string is not generated by me, its passed externally - so I can't add the slashes without it knowing where the $s are.


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