Regular Expressions 101

Pro

^start of line

Group 1(\w+)

\w+a Unicode word character, repeated at least once

Character Class[ \t]*

*matches any number of characters from the set below:

the literal (32₁₀ / 40₈ / 20₁₆)

\ta tab character (ASCII 9)

Group 2(.*\bby[ \t]+(\w+)[ \t]*.*)

.*any Unicode character (except for line terminators), repeated any number of times

\ba Unicode word boundary

bythe literal text by (case sensitive)

Character Class[ \t]+

+matches at least one character from the set below:

the literal (32₁₀ / 40₈ / 20₁₆)

\ta tab character (ASCII 9)

Group 3(\w+)

\w+a Unicode word character, repeated at least once

Character Class[ \t]*

*matches any number of characters from the set below:

the literal (32₁₀ / 40₈ / 20₁₆)

\ta tab character (ASCII 9)

.*any Unicode character (except for line terminators), repeated any number of times

$end of line

Global pattern flags

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

g modifier: global. Finds all matches instead of stopping after the first

Detailed match information will be displayed here automatically.

25 tokens

^(\w+)[ \t]*(.*\bby[ \t]+(\w+)[ \t]*.*)$

New

2345          Checked by John
2398          Verified by Stacy
3983          Double Checked on 2/23/17 by Marsha

\1\t\2\t\3

2345          Checked by John
2398          Verified by Stacy
3983          Double Checked on 2/23/17 by Marsha