I'm not a regex expert.
I have the following regex, which seems to work fine, to get a number with 2 decimal values using as decimal splitter . or ,.
/([0-9]*[\.|\,]{0,1}[0-9]{0,2})/g
This should be the behaviour:
1 => should be valid
1.1 => should be valid (same with using `,` instead of `.`)
1.23 => should be valid (same with using `,` instead of `.`)
1.235 => should be invalid
-1 => should be invalid
abc => should be invalid
1a => should be invalid ...
A regex to test, you can find here:
https://regex101.com/r/qwdN7o/1
But my issue is now, to negotiate the whole regex expression. I want to get all which is not matching the regex. I already tried this:
^(?!([0-9]*[\.|\,]{0,1}[0-9]{0,2}))
Can anyone help? Many thanks in advance!
CodePudding user response：
I want to get all which is not matching the regex.
If you want to match all the words that don't match number pattern then use:
(?<!\S)(?!\d (?:[.,]\d{0,2})?)\S
Breakup:
(?<!\S): Lookbehind to assert that previous char is not a non-whitespace(?!\d (?:[.,]\d{0,2})?): Negative lookahead to assert that we don't have a numbered text ahead of us\S: Match 1 non-whitespace RegEx Demo 1
Or if you want to match full line that don't contain this number text then use:
^(?!.*\b\d (?:[.,]\d{0,2})?).