Regular Expressions 101

Pro

"the literal " (34₁₀ / 42₈ / 22₁₆)

Group 1(.*?)

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

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

\1the text saved by group 1

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

":the literal text ":

Group 2(.*\/[a-zA-Z0-9]+)

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

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Character Class[a-zA-Z0-9]+

+matches at least one character from the set below:

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

A-Zone character from A (65₁₀) to Z (90₁₀) (case sensitive)

0-9one character from 0 (48₁₀) to 9 (57₁₀)

Positive Lookahead(?=\?|\,|\.|$)

1st Alternative\?

\?the literal ? (63₁₀ / 77₈ / 3F₁₆)

2nd Alternative\,

\,the literal , (44₁₀ / 54₈ / 2C₁₆)

3rd Alternative\.

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

4th Alternative$

$end of string, or before its final line terminator

Detailed match information will be displayed here automatically.

25 tokens

"(.*?)\(\1\)":(.*\/[a-zA-Z0-9]+)(?=\?|\,|\.|$)

New

"text1(text1)":http://www.example.com/mypage, ? .

<a href="$2">$1</a>

"text1(text1)":http://www.example.com/mypage, ? .