Regular Expressions 101

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/
(<p>|<div .*>)(\s*)(<a .*>)?(\s*)(<img .* \/>)(\s*)(<\/a>)?(\s*)(<p .*>.*<\/p>)?(\s*)(<\/p>|<\/div>)
/
1st Capturing Group
(<p>|<div .*>)
1st Alternative
<p>
<p>
matches the characters <p> literally (case sensitive)
2nd Alternative
<div .*>
<div
matches the characters <div literally (case sensitive)
.
matches any character (except for line terminators)
* matches the previous token between zero and unlimited times, as many times as possible, giving back as needed (greedy)
> matches the character > with index 6210 (3E16 or 768) literally (case sensitive)
2nd Capturing Group
(\s*)
\s
matches any whitespace character (equivalent to [\r\n\t\f\v ])
* matches the previous token between zero and unlimited times, as many times as possible, giving back as needed (greedy)
3rd Capturing Group
(<a .*>)?
? matches the previous token between zero and one times, as many times as possible, giving back as needed (greedy)
<a
matches the characters <a literally (case sensitive)
.
matches any character (except for line terminators)
* matches the previous token between zero and unlimited times, as many times as possible, giving back as needed (greedy)
> matches the character > with index 6210 (3E16 or 768) literally (case sensitive)
4th Capturing Group
(\s*)
\s
matches any whitespace character (equivalent to [\r\n\t\f\v ])
* matches the previous token between zero and unlimited times, as many times as possible, giving back as needed (greedy)
5th Capturing Group
(<img .* \/>)
<img
matches the characters <img literally (case sensitive)
.
matches any character (except for line terminators)
* matches the previous token between zero and unlimited times, as many times as possible, giving back as needed (greedy)
matches the character with index 3210 (2016 or 408) literally (case sensitive)
\/ matches the character / with index 4710 (2F16 or 578) literally (case sensitive)
> matches the character > with index 6210 (3E16 or 768) literally (case sensitive)
6th Capturing Group
(\s*)
\s
matches any whitespace character (equivalent to [\r\n\t\f\v ])
* matches the previous token between zero and unlimited times, as many times as possible, giving back as needed (greedy)
7th Capturing Group
(<\/a>)?
? matches the previous token between zero and one times, as many times as possible, giving back as needed (greedy)
< matches the character < with index 6010 (3C16 or 748) literally (case sensitive)
\/ matches the character / with index 4710 (2F16 or 578) literally (case sensitive)
a>
matches the characters a> literally (case sensitive)
8th Capturing Group
(\s*)
\s
matches any whitespace character (equivalent to [\r\n\t\f\v ])
* matches the previous token between zero and unlimited times, as many times as possible, giving back as needed (greedy)
9th Capturing Group
(<p .*>.*<\/p>)?
? matches the previous token between zero and one times, as many times as possible, giving back as needed (greedy)
<p
matches the characters <p literally (case sensitive)
.
matches any character (except for line terminators)
* matches the previous token between zero and unlimited times, as many times as possible, giving back as needed (greedy)
> matches the character > with index 6210 (3E16 or 768) literally (case sensitive)
.
matches any character (except for line terminators)
* matches the previous token between zero and unlimited times, as many times as possible, giving back as needed (greedy)
< matches the character < with index 6010 (3C16 or 748) literally (case sensitive)
\/ matches the character / with index 4710 (2F16 or 578) literally (case sensitive)
p>
matches the characters p> literally (case sensitive)
10th Capturing Group
(\s*)
\s
matches any whitespace character (equivalent to [\r\n\t\f\v ])
* matches the previous token between zero and unlimited times, as many times as possible, giving back as needed (greedy)
11th Capturing Group
(<\/p>|<\/div>)
1st Alternative
<\/p>
< matches the character < with index 6010 (3C16 or 748) literally (case sensitive)
\/ matches the character / with index 4710 (2F16 or 578) literally (case sensitive)
p>
matches the characters p> literally (case sensitive)
2nd Alternative
<\/div>
Your regular expression does not match the subject string.Try launching the debugger to find out why.

Regular Expression
No Match

/
/

Test String

Substitution

Processing...