Regular Expressions 101

<!--the literal text <!--

Group 1((?!batcache)(?!\[endif\])[\s\S])*?

*?repeats the group contents below any number of times:

Negative Lookahead(?!batcache)

batcachethe literal text batcache (case sensitive)

Negative Lookahead(?!\[endif\])

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

endifthe literal text endif (case sensitive)

\]the literal ] (93₁₀ / 135₈ / 5D₁₆)

Character Class[\s\S]

\sany whitespace character

\Sany non-whitespace character

-->the literal text -->

Global pattern flags

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

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

<!--((?!batcache)(?!\[endif\])[\s\S])*?-->

New

<!--[if IE 6]>
    Special instructions for IE 6 here
<![endif]-->

<!--
generated 37 seconds ago
generated in 0.978 seconds
served from batcache in 0.004 seconds
expires in 263 seconds
-->

<!--asdasd  asldasldkaslÃ²dk
        batcahe
asd
as-->

<!--asdasd  asldasldkaslÃ²dk
        batcaRO
asd
as-->

<!--asdasd  asldasldkaslÃ²dk
        batcache
asd
as-->

Regular Expression

Extraction