Regular Expressions 101

Pro

^start of line

Non-Capturing Group(?:.*twitter\.com/|@?)

1st Alternative.*twitter\.com/

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

twitterthe literal text twitter (case sensitive)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

com/the literal text com/ (case sensitive)

2nd Alternative@?

@?optionally matches the literal @ (64₁₀ / 100₈ / 40₁₆)

Group 1(\w{1,15})

\w{1,15}a Unicode word character, repeated between 1 and 15 times

Non-Capturing Group(?:$|/.*$)

1st Alternative$

$end of line

2nd Alternative/.*$

/the literal / (47₁₀ / 57₈ / 2F₁₆)

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

$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

Regular Expression

^(?:.*twitter\.com/|@?)(\w{1,15})(?:$|/.*$)

New

myhandle
@myhandle
@my_handle_2
twitter.com/myhandle
https://twitter.com/myhandle
https://twitter.com/myhandle/randomstuff
mysuperhandleistoolong
@mysuperhandleistoolong
https://twitter.com/mysuperhandleistoolong