Match negative and positive decimals?

Question

I'm trying to match positive and negative numbers inbetween two tags using regex, the positive numbers return fine but the negative ones do not match. I am using:

string value8 = (",\"lng\":\"(([^\"\\\\]|-\\\\.)*)\",");
Match[] lng = Regex.Matches(Text, value8)

to match against

"lng":"-104.845275878905880"

or similar, it can be positive or negative. When positive it matches the number but when negative, there are no matches.

score 2 · Accepted Answer · answered Jan 17 '11 at 18:39

2

Unless I'm missing something, your regex looks a little more complex than it needs to be. You should be able to use something like this:

"\"lng\":\\\"(-?[0-9]*\\.?[0-9]*)\\\""

Incidentally, I removed the comma at the beginning of your expression, as that would prevent this pattern from matching your sample data.

answered Jan 17 '11 at 18:39

Adam Robinson

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ahh sorry about that the comma is supposed to be there although it is matching 0.00000000000000 for some odd reason. – user556396 Jan 17 '11 at 19:05
@user556396: Does this new pattern solve your issue if you add the comma? – Adam Robinson Jan 17 '11 at 20:30

Match negative and positive decimals?

1 Answers1