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Thread: regular expressions

  1. #1
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    Default regular expressions

    I'm trying to match numbers in a row separated by a coma.
    Ex: 1,1,1,1,1,0,0,0,0,0,1

    If I use this "[0-9]," in the regexdialog Qt example, it works. But what if my row of numbers is: 12,123,1,1,0,0,12,0,0,0,1 ?
    How can I match any number that comes before a coma, and the last one?

  2. #2
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    Default Re: regular expressions

    "[0-9]{1,3},*"

    Assuming your numbers always have between 1 and three digits.

  3. #3
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    Default Re: regular expressions

    or:
    [0-9]*,

  4. #4
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    Default Re: regular expressions

    and:

    [\d]{1,3}\,{0,1}

    the sequence \d is equivalent to 0-9
    to match the comma we must write \,

    or
    ^[\d]{1,3}[\,]{0,1}

    http://doc.qt.nokia.com/4.7/qregexp.html
    Last edited by bred; 8th November 2010 at 14:52.

  5. #5
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    Default Re: regular expressions

    Or:
    \d+,

    If you wish to catch the last one as well then:
    \d+,?
    Your biological and technological distinctiveness will be added to our own. Resistance is futile.

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  6. #6
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    Default Re: regular expressions

    Thanks for the help. [0-9]{1,3} solves the problem.
    Last edited by been_1990; 8th November 2010 at 17:15.

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