Regular Expressions 101

Non-Capturing Group(?:UTF-8&q=+(.*)$|\?P=+(.*)$|\/search\/node\/+(.*)$)

1st AlternativeUTF-8&q=+(.*)$

UTF-8&qthe literal text UTF-8&q (case sensitive)

=+the literal = (61₁₀ / 75₈ / 3D₁₆) , repeated at least once

Group 1(.*)

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

$end of line

2nd Alternative\?P=+(.*)$

\?the literal ? (63₁₀ / 77₈ / 3F₁₆)

Pthe literal P (80₁₀ / 120₈ / 50₁₆) (case sensitive)

=+the literal = (61₁₀ / 75₈ / 3D₁₆) , repeated at least once

Group 2(.*)

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

$end of line

3rd Alternative\/search\/node\/+(.*)$

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

searchthe literal text search (case sensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

nodethe literal text node (case sensitive)

\/+the literal / (47₁₀ / 57₈ / 2F₁₆) , repeated at least once

Group 3(.*)

.*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.

Search reference

Regular Expression

(?:UTF-8&q=+(.*)$|\?P=+(.*)$|\/search\/node\/+(.*)$)

New

/search/results/?cx=015839161432768919274:z2n1gijj14s&cof=FORID:9&ie=UTF-8&q=conserative+
/search/results/?cx=015839161432768919274:z2n1gijj14s&cof=FORID:9&ie=UTF-8&q=congress+numbers
/search/results/?cx=015839161432768919274:z2n1gijj14s&cof=FORID:9&ie=UTF-8&q=chemistry+degree
/search/?P=MBA 742
/search/node/adim account

Regular Expression

Extraction