Why this regex:
[^\s]+
…says that this string:
“user’s extension”
isn’t exact match?
Why this regex: [^\s]+ …says that this string: user’s extension isn’t exact match?
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Why this regex:
[^\s]+
…says that this string:
“user’s extension”
isn’t exact match?
The regex only matches a string that doesn’t contain any whitespace. Your matching method appears to apply the regex to the entire string, therefore it fails.
[abc]is a character class, meaning “eithera,borc“.[^abc]is the inverse of that class meaning “any character excepta,borc“.\smeans “any whitespace character”.[^\s](which can also be written as\S) means “any non-whitespace character”.+means “one or more of the preceding token.