Regular Expressions 101

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/
(.*?) (.*?) (.*?) ([0-9.]+):([0-9]*) ([0-9.]+):([0-9]*) ([.0-9]*) ([.0-9]*) ([.0-9]*) (-|[0-9]*) (-|[0-9]*) ([-0-9]*) ([-0-9]*) "(.*?) .*?:.*?:([0-9]+)([^? ]*)(.*?) (.*?)" "(.*?)" (.*?) (.*?) (.*?) "(.*?)" *$
/
gm
1st Capturing Group
(.*?)
.
matches any character (except for line terminators)
*? matches the previous token between zero and unlimited times, as few times as possible, expanding as needed (lazy)
matches the character with index 3210 (2016 or 408) literally (case sensitive)
2nd Capturing Group
(.*?)
.
matches any character (except for line terminators)
*? matches the previous token between zero and unlimited times, as few times as possible, expanding as needed (lazy)
matches the character with index 3210 (2016 or 408) literally (case sensitive)
3rd Capturing Group
(.*?)
.
matches any character (except for line terminators)
*? matches the previous token between zero and unlimited times, as few times as possible, expanding as needed (lazy)
matches the character with index 3210 (2016 or 408) literally (case sensitive)
4th Capturing Group
([0-9.]+)
Match a single character present in the list below
[0-9.]
+ matches the previous token between one and unlimited times, as many times as possible, giving back as needed (greedy)
0-9 matches a single character in the range between 0 (index 48) and 9 (index 57) (case sensitive)
. matches the character . with index 4610 (2E16 or 568) literally (case sensitive)
: matches the character : with index 5810 (3A16 or 728) literally (case sensitive)
5th Capturing Group
([0-9]*)
Match a single character present in the list below
[0-9]
* matches the previous token between zero and unlimited times, as many times as possible, giving back as needed (greedy)
0-9 matches a single character in the range between 0 (index 48) and 9 (index 57) (case sensitive)
matches the character with index 3210 (2016 or 408) literally (case sensitive)
6th Capturing Group
([0-9.]+)
Match a single character present in the list below
[0-9.]
+ matches the previous token between one and unlimited times, as many times as possible, giving back as needed (greedy)
0-9 matches a single character in the range between 0 (index 48) and 9 (index 57) (case sensitive)
. matches the character . with index 4610 (2E16 or 568) literally (case sensitive)
: matches the character : with index 5810 (3A16 or 728) literally (case sensitive)
7th Capturing Group
([0-9]*)
Match a single character present in the list below
[0-9]
* matches the previous token between zero and unlimited times, as many times as possible, giving back as needed (greedy)
0-9 matches a single character in the range between 0 (index 48) and 9 (index 57) (case sensitive)
matches the character with index 3210 (2016 or 408) literally (case sensitive)
8th Capturing Group
([.0-9]*)
Match a single character present in the list below
[.0-9]
* matches the previous token between zero and unlimited times, as many times as possible, giving back as needed (greedy)
. matches the character . with index 4610 (2E16 or 568) literally (case sensitive)
0-9 matches a single character in the range between 0 (index 48) and 9 (index 57) (case sensitive)
matches the character with index 3210 (2016 or 408) literally (case sensitive)
9th Capturing Group
([.0-9]*)
Match a single character present in the list below
[.0-9]
* matches the previous token between zero and unlimited times, as many times as possible, giving back as needed (greedy)
. matches the character . with index 4610 (2E16 or 568) literally (case sensitive)
0-9 matches a single character in the range between 0 (index 48) and 9 (index 57) (case sensitive)
matches the character with index 3210 (2016 or 408) literally (case sensitive)
10th Capturing Group
([.0-9]*)
Match a single character present in the list below
[.0-9]
* matches the previous token between zero and unlimited times, as many times as possible, giving back as needed (greedy)
. matches the character . with index 4610 (2E16 or 568) literally (case sensitive)
0-9 matches a single character in the range between 0 (index 48) and 9 (index 57) (case sensitive)
matches the character with index 3210 (2016 or 408) literally (case sensitive)
11th Capturing Group
(-|[0-9]*)
1st Alternative
-
- matches the character - with index 4510 (2D16 or 558) literally (case sensitive)
2nd Alternative
[0-9]*
matches the character with index 3210 (2016 or 408) literally (case sensitive)
12th Capturing Group
(-|[0-9]*)
matches the character with index 3210 (2016 or 408) literally (case sensitive)
13th Capturing Group
([-0-9]*)
matches the character with index 3210 (2016 or 408) literally (case sensitive)
14th Capturing Group
([-0-9]*)
"
matches the characters " literally (case sensitive)
15th Capturing Group
(.*?)
matches the character with index 3210 (2016 or 408) literally (case sensitive)
.
matches any character (except for line terminators)
: matches the character : with index 5810 (3A16 or 728) literally (case sensitive)
.
matches any character (except for line terminators)
: matches the character : with index 5810 (3A16 or 728) literally (case sensitive)
16th Capturing Group
([0-9]+)
17th Capturing Group
([^? ]*)
18th Capturing Group
(.*?)
matches the character with index 3210 (2016 or 408) literally (case sensitive)
19th Capturing Group
(.*?)
" "
matches the characters " " literally (case sensitive)
20th Capturing Group
(.*?)
"
matches the characters " literally (case sensitive)
21st Capturing Group
(.*?)
matches the character with index 3210 (2016 or 408) literally (case sensitive)
22nd Capturing Group
(.*?)
matches the character with index 3210 (2016 or 408) literally (case sensitive)
23rd Capturing Group
(.*?)
"
matches the characters " literally (case sensitive)
24th Capturing Group
(.*?)
" matches the character " with index 3410 (2216 or 428) literally (case sensitive)
matches the character with index 3210 (2016 or 408) literally (case sensitive)
$ asserts position at the end of a line
Global pattern flags
g modifier: global. All matches (don't return after first match)
m modifier: multi line. Causes ^ and $ to match the begin/end of each line (not only begin/end of string)
Your regular expression does not match the subject string.Try launching the debugger to find out why.

Regular Expression
No Match

/
/
gm

Test String