Regex to validate cookie string (Key value paired)

Question

So far I tried this regex but no luck.

([^=;]+=[^=;]+(;(?!$)|$))+

Valid Strings:

something=value1;another=value2



something=value1 ; anothe=value2

Invalid Strings:

something=value1 ;;;name=test

some=value=3;key=val

somekey=somevalue;

The fourth bird · Accepted Answer

You might use an optional repeating group to get the matches.

If you don't want to cross newline boundaries, you might add or to the negated character class.

^[^=;
]+=[^=;
]+(?:;[^=;
]+=[^=;
]+)*$

Explanation

^ Start of string
[^=; ]+=[^=; ]+ Match the key and value using a negated character class
(?: Non capture group
- ;[^=; ]+=[^=; ]+ Match a comma followed by the same pattern
)* Close group and repeat 0+ times
$ End string

Answers (1)