Regular Expressions 101

Pro

1st Alternative(['"])(?:(?!\1).)*or(?:(?!\1).)*\1(*SKIP)(*F)

Group 1(['"])

Character Class['"]

'the literal ' (39₁₀ / 47₈ / 27₁₆)

"the literal " (34₁₀ / 42₈ / 22₁₆)

Non-Capturing Group(?:(?!\1).)*

*repeats the group contents below any number of times:

Negative Lookahead(?!\1)

\1the text saved by group 1

.any character (except for line terminators)

orthe literal text or (case sensitive)

Non-Capturing Group(?:(?!\1).)*

*repeats the group contents below any number of times:

Negative Lookahead(?!\1)

\1the text saved by group 1

.any character (except for line terminators)

\1the text saved by group 1

(*SKIP)acts like (*PRUNE), but the next unanchored match attempt starts where (*SKIP) was reached instead of at the next subject character

(*F)forces the current match attempt to fail at this position

2nd Alternative\bor\b

\ban ASCII word boundary

orthe literal text or (case sensitive)

\ban ASCII word boundary

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

(['"])(?:(?!\1).)*or(?:(?!\1).)*\1(*SKIP)(*F)|\bor\b

New

$example or 'default value'
"this or that"