Regular Expressions 101

^start of line

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

Negated Character Class[^|\n]*

*matches any number of characters outside the set below:

|the literal | (124₁₀ / 174₈ / 7C₁₆)

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

Non-Capturing Group(?:\|[^|\n]*){3,}

{3,}repeats the group contents below at least 3 times:

\|the literal | (124₁₀ / 174₈ / 7C₁₆)

Negated Character Class[^|\n]*

*matches any number of characters outside the set below:

|the literal | (124₁₀ / 174₈ / 7C₁₆)

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

]the literal ] (93₁₀ / 135₈ / 5D₁₆)

$end of line

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

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

^\[[^|\n]*(?:\|[^|\n]*){3,}]$

New

[keyword1|keyword2|keyword3]
[keyword1|keyword2]
[keyword1|keyword2|keyword3|keyword4]