Regular Expressions 101

Explanation

Pro

1st Alternative^.*\bfoo\b.*bar\b.*$

^start of line

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

\ban ASCII word boundary

foothe literal text foo (case sensitive)

\ban ASCII word boundary

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

barthe literal text bar (case sensitive)

\ban ASCII word boundary

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

$end of line

2nd Alternative^.*\bbar\b.*foo\b.*$

^start of line

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

\ban ASCII word boundary

barthe literal text bar (case sensitive)

\ban ASCII word boundary

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

foothe literal text foo (case sensitive)

\ban ASCII word boundary

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

$end of line

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

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25 tokens

^.*\bfoo\b.*bar\b.*$|^.*\bbar\b.*foo\b.*$

There are no unit tests.