Regular Expressions 101

1st Alternative(["']) \1(*SKIP)(*FAIL)

Group 1(["'])

Character Class["']

"the literal " (34₁₀ / 42₈ / 22₁₆)

'the literal ' (39₁₀ / 47₈ / 27₁₆)

the literal text

\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

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

2nd Alternative[ ]{2}

Character Class[ ]{2}

{2}matches exactly 2 characters from the set below:

the literal (32₁₀ / 40₈ / 20₁₆)

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.

Search reference

Regular Expression

(["'])  \1(*SKIP)(*FAIL)|[ ]{2}

New

a  bc  d " "l  g' 'gsf