Regular Expressions 101

Pro

Positive Lookbehind(?<=Invalid items: \([^)]*)

Invalid items: the literal text Invalid items: (case sensitive)

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

Negated Character Class[^)]*

*matches any number of characters outside the set below:

)the literal ) (41₁₀ / 51₈ / 29₁₆)

Negated Character Class[^ ;)]+

+matches at least one character outside the set below:

the literal (32₁₀ / 40₈ / 20₁₆)

;the literal ; (59₁₀ / 73₈ / 3B₁₆)

)the literal ) (41₁₀ / 51₈ / 29₁₆)

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.

26 tokens

Regular Expression

(?<=Invalid items: \([^)]*)[^ ;)]+

New

Valid items: (aaa.com; bbb.com); Invalid items: (abc.def.com;); Valid items: (foo123;); Invalid items: (bar123;); Valid items: (1234; 5678; abcd;); Invalid items: (hello; world; 1212; 5566; aaaa;)

Extraction

Valid items: (aaa.com; bbb.com); Invalid items: (abc.def.com;); Valid items: (foo123;); Invalid items: (bar123;); Valid items: (1234; 5678; abcd;); Invalid items: (hello; world; 1212; 5566; aaaa;)