regex101: PCRE (Legacy) Match Workspace

1st Alternative>(occurence(?:\s(?:[\w']+),?){0,100})

>the literal > (62₁₀ / 76₈ / 3E₁₆)

Group 1(occurence(?:\s(?:[\w']+),?){0,100})

occurencethe literal text occurence (case sensitive)

Non-Capturing Group(?:\s(?:[\w']+),?){0,100}

{0,100}repeats the group contents below between 0 and 100 times:

\sany whitespace character

Non-Capturing Group(?:[\w']+)

Character Class[\w']+

+matches at least one character from the set below:

\wany word character

'the literal ' (39₁₀ / 47₈ / 27₁₆)

,?optionally matches the literal , (44₁₀ / 54₈ / 2C₁₆)

2nd Alternative((?:\s(?:[\w']+)){0,100}\s?occurence(?:\s(?:[\w']+),?){0,100})

Group 2((?:\s(?:[\w']+)){0,100}\s?occurence(?:\s(?:[\w']+),?){0,100})

Non-Capturing Group(?:\s(?:[\w']+)){0,100}

{0,100}repeats the group contents below between 0 and 100 times:

\sany whitespace character

Non-Capturing Group(?:[\w']+)

Character Class[\w']+

+matches at least one character from the set below:

\wany word character

'the literal ' (39₁₀ / 47₈ / 27₁₆)

\s?optionally matches any whitespace character

occurencethe literal text occurence (case sensitive)

Non-Capturing Group(?:\s(?:[\w']+),?){0,100}

{0,100}repeats the group contents below between 0 and 100 times:

\sany whitespace character

Non-Capturing Group(?:[\w']+)

Character Class[\w']+

+matches at least one character from the set below:

\wany word character

'the literal ' (39₁₀ / 47₈ / 27₁₆)

,?optionally matches the literal , (44₁₀ / 54₈ / 2C₁₆)

3rd Alternative((?:\s(?:[\w',]+)){0,100}\s?occurence)<

Group 3((?:\s(?:[\w',]+)){0,100}\s?occurence)

Non-Capturing Group(?:\s(?:[\w',]+)){0,100}

{0,100}repeats the group contents below between 0 and 100 times:

\sany whitespace character

Non-Capturing Group(?:[\w',]+)

Character Class[\w',]+

+matches at least one character from the set below:

\wany word character

'the literal ' (39₁₀ / 47₈ / 27₁₆)

,the literal , (44₁₀ / 54₈ / 2C₁₆)

\s?optionally matches any whitespace character

occurencethe literal text occurence (case sensitive)

<the literal < (60₁₀ / 74₈ / 3C₁₆)

Search reference

Regular Expression

>(occurence(?:\s(?:[\w']+),?){0,100})|((?:\s(?:[\w']+)){0,100}\s?occurence(?:\s(?:[\w']+),?){0,100})|((?:\s(?:[\w',]+)){0,100}\s?occurence)<

New

<p>Do not forget the error handling, I don't exactly know what happens if it wants to replace an occurence and can't find it</p>
<p>Edit: If you have multiple entries which should be replaced, loop the replace part until it will not be able to replace anymore then it will throw an error you can catch to continue</p>

Regular Expressions 101

Regular Expression

Extraction