Regular Expressions 101

^start of line

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

{3}repeats the group contents below exactly 3 times:

Negated Character Class[^+\n]*

*matches any number of characters outside the set below:

+the literal + (43₁₀ / 53₈ / 2B₁₆)

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

\+the literal + (43₁₀ / 53₈ / 2B₁₆)

.*any character (except for line terminators), repeated any number of times

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]*\+){3}.*

New

+1a
+1a +2
+1a +2 +3
+1a +2 +3 +4
+1a +2 +3 +4 +5