regex101: PCRE (Legacy) Match Workspace

\<the literal < (60₁₀ / 74₈ / 3C₁₆)

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

\ban ASCII word boundary

Negative Lookahead(?![^>]*\bnosecure\b)

Negated Character Class[^>]*

*matches any number of characters outside the set below:

>the literal > (62₁₀ / 76₈ / 3E₁₆)

\ban ASCII word boundary

nosecurethe literal text nosecure (case sensitive)

\ban ASCII word boundary

Negated Character Class[^>]*

*matches any number of characters outside the set below:

>the literal > (62₁₀ / 76₈ / 3E₁₆)

Group 1([^<]*)

Negated Character Class[^<]*

*matches any number of characters outside the set below:

<the literal < (60₁₀ / 74₈ / 3C₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

a>the literal text a> (case sensitive)

Global pattern flags

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

Search reference

Regular Expression

\<a\b(?![^>]*\bnosecure\b)[^>]*>([^<]*)<\/a>

New

== secure / find:
<a href="mailto:test@test.com">test@test.com</a>
<a href="mailto:test@test.com" something="else">test@test.com</a>
<a something="else" href="mailto:test@test.com">test@test.com</a>
<a something="else" href="mailto:test@test.com" something="else">test@test.com</a>

== no secure / find NOT:
<a href="mailto:test@test.com" nosecure>test@test.com</a>
<a nosecure href="mailto:test@test.com">test@test.com</a>
<a href="mailto:test@test.com" nosecure="true">test@test.com</a>
<a nosecure="true" href="mailto:test@test.com">test@test.com</a>
<a something="else" href="mailto:test@test.com" something="else" nosecure="true" something="else">test@test.com</a>
<a something="else" nosecure="true" something="else" href="mailto:test@test.com" something="else">test@test.com</a>

Regular Expressions 101

Regular Expression

Substitution