Regular Expressions 101

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"
^([^\s]+) ([^\s]+) ([^\s]+) \[([\w:/]+\s[+\-]\d{4})\] "(\S+) /.*() ([^\\"]+)" (\d{3}) (\S+)
"
g
All the errors detected are listed below, from left to right, as they appear in the pattern.
" An unescaped delimiter must be escaped with a backslash (\)
" An unescaped delimiter must be escaped with a backslash (\)
" An unescaped delimiter must be escaped with a backslash (\)
Your regular expression does not match the subject string.

Regular Expression
No Match

r"
"
g

Test String