Regular Expressions 101

Pro

^start of line

Non-Capturing Group(?:"[^"]*"|\S+)

1st Alternative"[^"]*"

"the literal " (34₁₀ / 42₈ / 22₁₆)

Negated Character Class[^"]*

*matches any number of characters outside the set below:

"the literal " (34₁₀ / 42₈ / 22₁₆)

2nd Alternative\S+

\S+any non-whitespace character, repeated at least once

Non-Capturing Group(?: (?:OR|AND) (?:"[^"]*"|\S+))*

*repeats the group contents below any number of times:

the literal (32₁₀ / 40₈ / 20₁₆)

Non-Capturing Group(?:OR|AND)

1st AlternativeOR

ORthe literal text OR (case sensitive)

2nd AlternativeAND

ANDthe literal text AND (case sensitive)

the literal (32₁₀ / 40₈ / 20₁₆)

Non-Capturing Group(?:"[^"]*"|\S+)

1st Alternative"[^"]*"

"the literal " (34₁₀ / 42₈ / 22₁₆)

Negated Character Class[^"]*

*matches any number of characters outside the set below:

"the literal " (34₁₀ / 42₈ / 22₁₆)

2nd Alternative\S+

\S+any non-whitespace character, repeated at least once

$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

Detailed match information will be displayed here automatically.

25 tokens

^(?:"[^"]*"|\S+)(?: (?:OR|AND) (?:"[^"]*"|\S+))*$

New

dog OR cat AND dog
"Dog bot" OR cat
cat OR dog AND "bob"

dog cat
Dog or cat and dog
dog OR CAT OR

dog OR cat AND dog
"Dog bot" OR cat
cat OR dog AND "bob"

dog cat
Dog or cat and dog
dog OR CAT OR