Regular Expressions 101

1st Alternative\[!--[^-]*--\](*SKIP)(*F)

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

!--the literal text !--

Negated Character Class[^-]*

*matches any number of characters outside the set below:

-the literal - (45₁₀ / 55₈ / 2D₁₆)

--the literal text --

\]the literal ] (93₁₀ / 135₈ / 5D₁₆)

(*SKIP)acts like (*PRUNE), but the next unanchored match attempt starts where (*SKIP) was reached instead of at the next subject character

(*F)forces the current match attempt to fail at this position

2nd Alternative(?:(?!\[!--[^-]*--\]).)+

Non-Capturing Group(?:(?!\[!--[^-]*--\]).)+

+repeats the group contents below at least once:

Negative Lookahead(?!\[!--[^-]*--\])

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

!--the literal text !--

Negated Character Class[^-]*

*matches any number of characters outside the set below:

-the literal - (45₁₀ / 55₈ / 2D₁₆)

--the literal text --

\]the literal ] (93₁₀ / 135₈ / 5D₁₆)

.any character (except for line terminators)

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

\[!--[^-]*--\](*SKIP)(*F)|(?:(?!\[!--[^-]*--\]).)+

New

nine hundred ninety [!--$element--] two hundred thirteen