Regular
Expressions
101
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Explanation
/
^
(?<date>
[^
\s
]
+
)
(?<time>
[^
\s
]
+
)
-
(?<message>
.
*
)
$
/
^
asserts position at start of the string
Named Capture Group
date
(?<date>
[^
\s
]
+
)
Match a single character not present in the list below
[^
\s
]
+
+
Quantifier
— Matches between
one
and
unlimited
times, as many times as possible, giving back as needed
(greedy)
\s
matches any whitespace character (equal to
[\r\n\t\f\v ]
)
matches the character
literally (case sensitive)
Named Capture Group
time
(?<time>
[^
\s
]
+
)
Match a single character not present in the list below
[^
\s
]
+
+
Quantifier
— Matches between
one
and
unlimited
times, as many times as possible, giving back as needed
(greedy)
\s
matches any whitespace character (equal to
[\r\n\t\f\v ]
)
-
matches the characters
-
literally (case sensitive)
Named Capture Group
message
(?<message>
.
*
)
.
*
matches any character (except for line terminators)
Line terminator(s) are \n
*
Quantifier
— Matches between
zero
and
unlimited
times, as many times as possible, giving back as needed
(greedy)
$
asserts position at the end of the string, or before the line terminator right at the end of the string (if any)
Line terminator(s) are \n
Match Information
Your regular expression does not match the subject string.
Try launching the debugger to find out why.
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Regular
Expressions
101
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