Regular Expressions

Match patterns and strings!

You can find the full description of RegExp in Wikipedia. This article will provide you with a short cheat sheet of frequently used expressions.

No JS evaluation is needed in regex! Just remember to use '*' after the expression.

rexExp cheat sheet

Meta-character	Description
.	Matches any character
+	Matches the preceding pattern element one or more times.
?	Matches the preceding pattern element zero or one time.
|	Separates alternate possibilities, A|B = A or B
^	Matches the beginning of a line or string.
$	Matches the end of a line or string.
[ ]	Denotes a set of possible character matches. [ABC] = A or B or C
\	Escapes special characters

Frequently used Regular Expressions

Case	regExp (you can copy-paste them right into Directual)
Check email format	.+@.+\..*
Check particular email domain	.+@yourdomain\.com*
Any digit number	[0-9]*
Any latin character	[a-zA-Z]*
Greetings	.*hello|hi|good morning|good evening|salut.*
URL	https?:\/\/(www.)?[-a-zA-Z0-9@:%.+~#=]{1,256}.[a-zA-Z0-9()]{1,6}\b([-a-zA-Z0-9()@:%+.~#?&//=]*)

Useful service for composing a regular expression: regex101.com