• dsemy@lemm.ee
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    1 year ago

    I didn’t realize ‘.’ is a number.

    \([0-9]+\.[0-9]\)?[0-9]* is more accurate I think.

    • morrowind@lemmy.ml
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      1 year ago

      I don’t quite understand yours, why does it need parentheses? And requires the decimal point?

      how about [0-9]+\.?[0-9]*

      • dsemy@lemm.ee
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        1 year ago

        The parens in my regex group part of the regex, so the following ‘?’ makes the entire group optional.

        Your regex matches (for example) ‘5.’ as a number.

        Mine is also slightly wrong, it matches a blank string as a number. Here’s a better one:

        [0-9]+\(\.[0-9]+\)?

        • morrowind@lemmy.ml
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          1 year ago

          Your regex matches (for example) ‘5.’ as a number

          Yeah that’s on purpose. That’s often used in sciences to mark significant digits.

          The thing I’m confused by in yours is you’re escaping the parenthesis, so there need to be literal parenthesis in the matching number, or that’s what it showed in the regex checker.