Regular Expressions 101

Explanation

Pro

1st Alternative(^[^\w]+)

Group 1(^[^\w]+)

^start of line

Negated Character Class[^\w]+

+matches at least one character outside the set below:

\wa Unicode word character

2nd Alternative([^\w]+$)

Group 2([^\w]+$)

Negated Character Class[^\w]+

+matches at least one character outside the set below:

\wa Unicode word character

$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

(^[^\w]+)|([^\w]+$)

New

hello.
hello.world
,hello+world.;
...hello...world...
..hello12workd123.akfje.[]