Hi I am using notepad and I need a regex witch match number 1 not number 2

number 1    <aaaaaa.


number 2   <aaaaaa.>

I tried this but it matches both of them not just number 1 I tried <.*(?!.*\>)

and im expect to be match just number 1 not number 2

CodePudding user response：

You could match only number 1:

^[^<\n>]*<[^\n<>]*$

Explanation

• ^ Start of string
• [^<\n>]* Match optional chars other than a newline or < or >
• <[^\n<>]* Match < followed by 0 occurrences of any char other than a newline or < or >
• $ End of string

Regex demo

Or if you only want to match the single part:

<(?![^<>\n]*>).*

Explanation

• < Match literally
• (?![^<>\n]*>) Negative lookahead, assert no more occurrence of > to the right
• .* Match the rest of the line

Regex demo