Regular Expressions 101

Pro

1st Alternative(?:^.*\\src\\)?(\w+)(?!\w*$)

Non-Capturing Group(?:^.*\\src\\)?

?repeats the group contents below at most once:

^start of line

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

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

srcthe literal text src (case sensitive)

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

Group 1(\w+)

\w+any word character, repeated at least once

Negative Lookahead(?!\w*$)

\w*any word character, repeated any number of times

$end of line

2nd Alternative(\W)

Group 2(\W)

\Wany non-word character

3rd Alternative(\w+)$

Group 3(\w+)

\w+any word character, repeated at least once

$end of line

Global pattern flags

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

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

Detailed match information will be displayed here automatically.

25 tokens

(?:^.*\\src\\)?(\w+)(?!\w*$)|(\W)|(\w+)$

New

c:\workspace\src\chrome\browser\ui\webui\settings\about_handler.h

c:\workspace\src\chrome\browser\ui\webui\settings\about_handler.h