regex101: PCRE (Legacy) Match Workspace

<the literal < (60₁₀ / 74₈ / 3C₁₆)

1st Alternativea

athe literal a (97₁₀ / 141₈ / 61₁₆) (case sensitive)

2nd Alternativescript

scriptthe literal text script (case sensitive)

3rd Alternativelink

linkthe literal text link (case sensitive)

4th Alternativeiframe

iframethe literal text iframe (case sensitive)

5th Alternativeimg

imgthe literal text img (case sensitive)

6th Alternativeobject

objectthe literal text object (case sensitive)

Non-Capturing Group(?:\s*\w+(?:\s*=\s*["'][^"']*["'])?)*

*repeats the group contents below any number of times:

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

\w+any word character, repeated at least once

Non-Capturing Group(?:\s*=\s*["'][^"']*["'])?

?repeats the group contents below at most once:

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

=the literal = (61₁₀ / 75₈ / 3D₁₆)

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

Character Class["']

"the literal " (34₁₀ / 42₈ / 22₁₆)

'the literal ' (39₁₀ / 47₈ / 27₁₆)

Negated Character Class[^"']*

*matches any number of characters outside the set below:

"the literal " (34₁₀ / 42₈ / 22₁₆)

'the literal ' (39₁₀ / 47₈ / 27₁₆)

Character Class["']

"the literal " (34₁₀ / 42₈ / 22₁₆)

'the literal ' (39₁₀ / 47₈ / 27₁₆)

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

Non-Capturing Group(?:href|src|data)

1st Alternativehref

hrefthe literal text href (case sensitive)

2nd Alternativesrc

srcthe literal text src (case sensitive)

3rd Alternativedata

datathe literal text data (case sensitive)

=the literal = (61₁₀ / 75₈ / 3D₁₆)

Character Class["']

"the literal " (34₁₀ / 42₈ / 22₁₆)

'the literal ' (39₁₀ / 47₈ / 27₁₆)

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

Character Class["']?

?matches at most one character from the set below:

"the literal " (34₁₀ / 42₈ / 22₁₆)

'the literal ' (39₁₀ / 47₈ / 27₁₆)

Non-Capturing Group(?:data:|#)

1st Alternativedata:

data:the literal text data: (case sensitive)

2nd Alternative#

#the literal # (35₁₀ / 43₈ / 23₁₆)

Group 2([^'"]+)

Negated Character Class[^'"]+

+matches at least one character outside the set below:

'the literal ' (39₁₀ / 47₈ / 27₁₆)

"the literal " (34₁₀ / 42₈ / 22₁₆)

Group 3(["'][^>]*>)

Global pattern flags

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

Search reference

Regular Expression

(<(?:a|script|link|iframe|img|object)(?:\s*\w+(?:\s*=\s*["'][^"']*["'])?)*\s*(?:href|src|data)=["'])(?!["']?(?:data:|#))([^'"]+)(["'][^>]*>)

Unit Tests

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