Regular Expressions 101

Pro

background-image:the literal text background-image: (case sensitive)

\s*any whitespace character, repeated any number of times

urlthe literal text url (case sensitive)

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

Group 1(['"]?)

Character Class['"]?

?matches at most one character from the set below:

'the literal ' (39₁₀ / 47₈ / 27₁₆)

"the literal " (34₁₀ / 42₈ / 22₁₆)

Group 2(\S*?)

\S*?any non-whitespace character, repeated any number of times

\1the text saved by group 1

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

Detailed match information will be displayed here automatically.

25 tokens

Regular Expression

background-image:\s*url\((['"]?)(\S*?)\1\)

New


    background-image: url(https://www.aaa.com/xxx/picture.png); background-size: 100%...
    background-image: url("https://www.aaa.com/xxx/picture(1_2)_pic(23).png")
    background-image: url(https://www.aaa.com/xxx/picture)

In this 3 cases , i want to extract the 3 urls:

    https://www.aaa.com/xxx/picture.png
    https://www.aaa.com/xxx/picture(1_2)_pic(23).png
    https://www.aaa.com/xxx/picture