Regular Expressions 101

Pro

Non-Capturing Group(?:\s|^)

1st Alternative\s

\sa Unicode whitespace character

2nd Alternative^

^start of string

Group 1([a-z]{2})

Character Class[a-z]{2}

{2}matches exactly 2 characters from the set below:

a-zone character from a (97₁₀) to z (122₁₀) (case sensitive)

Non-Capturing Group(?:\s|$)

1st Alternative\s

\sa Unicode whitespace character

2nd Alternative$

$end of string, or before its final line terminator

Global pattern flags

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

Detailed match information will be displayed here automatically.

25 tokens

(?:\s|^)([a-z]{2})(?:\s|$)

New

bb xxx yy xxx-zz xx xxx yy xxx yy xxx-zz aa

bb xxx yy xxx-zz xx xxx yy xxx yy xxx-zz aa