Regular Expressions 101

^start of line

Negated Character Class[^:\n]+

+matches at least one character outside the set below:

:the literal : (58₁₀ / 72₈ / 3A₁₆)

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

Positive Lookahead(?=:.+)

:the literal : (58₁₀ / 72₈ / 3A₁₆)

.+any Unicode character (except for line terminators), repeated at least once

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]+(?=:.+)

New

func factorial{num
	if{num==1
		ret{1}
	}
	ret{num*factorial{num-1}}
}
p:style="color: Red;"{factorial{fromVars{"target"}}}