Regular Expressions 101

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

size=the literal text size= (case sensitive)

Group 1([0-9]{1,2})

Character Class[0-9]{1,2}

{1,2}matches between 1 and 2 characters from the set below:

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

\]the literal ] (93₁₀ / 135₈ / 5D₁₆)

Group 2(.*?)

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

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

sizethe literal text size (case sensitive)

\]the literal ] (93₁₀ / 135₈ / 5D₁₆)

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

\[size=([0-9]{1,2})\](.*?)\[\/size\]

New

[size=100pt;top:0;position:absolute;z-index:999;background:yellow;color:red;font-size:120pt;min-height:100%;]DEFACED[/font]

[size=12]We are safe, phew![/size]

Regular Expression

Extraction