Regular Expressions 101

Group 1((?=ra\/[0-9]{4}\/[0-9]+\/[0-9]{2}\/[0-9]+\/\Qimage(2).jpg\E).+$)

Positive Lookahead(?=ra\/[0-9]{4}\/[0-9]+\/[0-9]{2}\/[0-9]+\/\Qimage(2).jpg\E)

rathe literal text ra (case sensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Character Class[0-9]{4}

{4}matches exactly 4 characters from the set below:

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

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Character Class[0-9]+

+matches at least one character from the set below:

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

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Character Class[0-9]{2}

{2}matches exactly 2 characters from the set below:

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

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Character Class[0-9]+

+matches at least one character from the set below:

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

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

\Qimage(2).jpg\Ethe literal text image(2).jpg (case sensitive)

.+any character (except for line terminators), repeated at least once

$end of string, or before its final line terminator

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

((?=ra\/[0-9]{4}\/[0-9]+\/[0-9]{2}\/[0-9]+\/\Qimage(2).jpg\E).+$)

New

http://localhost:8080/ra/2015/10160/11/115500/image(2).jpg"