Regular Expressions 101

Pro

Negative Lookbehind(?<!\w)

\wa Unicode word character

Non-Capturing Group(?:Tom|tom@foo\.bar|$201$\ 5550123)

1st AlternativeTom

Tomthe literal text Tom (case sensitive)

2nd Alternativetom@foo\.bar

tom@foothe literal text tom@foo (case sensitive)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

barthe literal text bar (case sensitive)

3rd Alternative$201$\ 5550123

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

201the literal text 201

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

\ the literal (32₁₀ / 40₈ / 20₁₆)

5550123the literal text 5550123

Negative Lookahead(?!\w)

\wa Unicode word character

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)(?:Tom|tom@foo\.bar|\(201\)\ 5550123)(?!\w)

New

Hello my name is Tom and I love Tomcat. My email address is tom@foo.bar and my phone number is (201) 5550123.

Hello my name is Tom and I love Tomcat. My email address is tom@foo.bar and my phone number is (201) 5550123.