regex101: PCRE (Legacy) Match Workspace

urlthe literal text url (case insensitive)

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

Negative Lookahead(?!['"]?(?:data|http|https):)

Character Class['"]?

?matches at most one character from the set below:

'the literal ' (39₁₀ / 47₈ / 27₁₆)

"the literal " (34₁₀ / 42₈ / 22₁₆)

Non-Capturing Group(?:data|http|https)

1st Alternativedata

datathe literal text data (case insensitive)

2nd Alternativehttp

httpthe literal text http (case insensitive)

3rd Alternativehttps

httpsthe literal text https (case insensitive)

:the literal : (58₁₀ / 72₈ / 3A₁₆)

Character Class['"]?

?matches at most one character from the set below:

'the literal ' (39₁₀ / 47₈ / 27₁₆)

"the literal " (34₁₀ / 42₈ / 22₁₆)

Group 1([^'"\)]*)

Negated Character Class[^'"\)]*

*matches any number of characters outside the set below:

'the literal ' (39₁₀ / 47₈ / 27₁₆)

"the literal " (34₁₀ / 42₈ / 22₁₆)

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

Character Class['"]?

?matches at most one character from the set below:

'the literal ' (39₁₀ / 47₈ / 27₁₆)

"the literal " (34₁₀ / 42₈ / 22₁₆)

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

Global pattern flags

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

i modifier: insensitive. Matches without distinguishing uppercase and lowercase letters

Search reference

Regular Expression

url\((?!['"]?(?:data|http|https):)['"]?([^'"\)]*)['"]?\)

New

1. background: url(https://images/magnifier-ico.svg) no-repeat left center;
2. background: url(http://images/magnifier-ico.svg) no-repeat left center;
background: url('images/magnifier-ico.png') no-repeat left center;
background: url("/images/magnifier-ico.svg") no-repeat left center;
background: url(./images/magnifier-ico.svg) no-repeat left center;
background: url(../images/magnifier-ico.svg) no-repeat left center;
background: url(../images/magnifier-ico.svg) no-repeat left center;
background: url(../images/magnifier-ico.svg) no-repeat left center;
background: url(../images/magnifier-ico.svg) no-repeat left center;

Regular Expressions 101

Regular Expression

Substitution