Regex to match non integers?

Tryin开发者_如何学Gog to create a regex that ignores a proper integer (1, 5, 999, etc.) and forward slashes (/), but finds a match in everything else. For example, it would find a match the following:

• test
• test1
• test-1

but ignores

• 1
• 55
• 7

This is for a mod rewrite.

[^-0-9\/]+ should do the trick, I think. It'll match any string that contains a non-digit.

Edited to add minus sign which would also be allowed in an integer, and then to include the forward slashes mentioned in the question.

This is a very old question, but I noticed that the currently accepted answer ([^-0-9\/]) will not match any part of a number string that has a dash/minus (-) in the middle or at the end or purely consists of dashes.

So the regex will not find a match in strings like 12-34, 1234-, --12, -, or -----, even though these are clearly not valid integer numbers and should thus be caught.

To include these in the regex, you can use something like this:

[^-0-9]+|[0-9]+(?=-)|^-$|-{2,}

This will match

• either any part of a string that contains a non-digit, non-minus character (as does the regex from the currently accepted answer)
• or any number that is followed by a minus sign - (using a positive lookahead, taking care of the numbers with dashes anywhere but the beginning)
• or any string that consists of one single dash
• or any part of a string with two or more consecutive dashes

This will thus find a match in any string that is not a positive or negative integer, see also https://regex101.com/r/8zJwCy/1

To also include (or rather exclude) slashes, as the OP requested, they can be added to the first character group.

[^-0-9\/]+|[0-9]+(?=-)|^-$|-{2,}

Note that this will also not match pure series of slashes (/, //, ///,...) and multiple slashes between integers (1//2, 1//-2, //1, 2//) which may or may not be desired (the currently accepted answer behaves identically), see https://regex101.com/r/8zJwCy/3

To also catch these, add another two optional groups that match series of slashes, analogous to the last two ones that take care of the dashes. Or, if you want a single individual slash (/) to be valid, just add one group analogous to the last one, see https://regex101.com/r/8zJwCy/4

[^-0-9\/]+|[0-9]+(?=-)|^-$|-{2,}|\/{2,}

This would match line by line - is that what you need?
^[0-9\/]*$

This should do the job!

^[0-9\/]+$