Matching an empty line with regular expression string match

 

https://stackoverflow.com/questions/3012788/how-to-check-if-a-line-is-blank-using-regex

 

works in regular expression search mode in notepad++

 

^\s*$

Explanation:

• ^ is the beginning of string anchor.
• $ is the end of string anchor.
• \s is the whitespace character class.
• * is zero-or-more repetition of.

In multiline mode, ^ and $ also match the beginning and end of the line.

 

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