regex101: PCRE (Legacy) Substitution Workspace

Pro

1st Alternative\n\s{0,3}<.*[^>]+

\na line-feed (newline) character (ASCII 10)

\s{0,3}any whitespace character, repeated between 0 and 3 times

<the literal < (60₁₀ / 74₈ / 3C₁₆)

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

Negated Character Class[^>]+

+matches at least one character outside the set below:

>the literal > (62₁₀ / 76₈ / 3E₁₆)

2nd Alternative<sub>.*?<\/sub>

<sub>the literal text <sub> (case sensitive)

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

<the literal < (60₁₀ / 74₈ / 3C₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

sub>the literal text sub> (case sensitive)

3rd Alternative`.*?`

`the literal ` (96₁₀ / 140₈ / 60₁₆)

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

`the literal ` (96₁₀ / 140₈ / 60₁₆)

Global pattern flags

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

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

25 tokens

Regular Expression

\n\s{0,3}<.*[^>]+|<sub>.*?<\/sub>|`.*?`

New

something1
<sub>
  something2
  <div class='myclass'>something3</div>
</sub>
<div class='myclass'>something4</div>
something5

    <div class='myclass'>something6</div>
<div class='myclass'>something7</div>
`<div>something8</div>`
something9

Extraction

something1
<sub>
  something2
  <div class='myclass'>something3</div>
</sub>
<div class='myclass'>something4</div>
something5

    <div class='myclass'>something6</div>
<div class='myclass'>something7</div>
`<div>something8</div>`
something9