Regular Expressions 101

Pro

1st Alternativea?m(ou?|[ie])n?g(st)? ?us

a?optionally matches the literal a (97₁₀ / 141₈ / 61₁₆) (case insensitive)

mthe literal m (109₁₀ / 155₈ / 6D₁₆) (case insensitive)

Group 1(ou?|[ie])

1st Alternativeou?

othe literal o (111₁₀ / 157₈ / 6F₁₆) (case insensitive)

u?optionally matches the literal u (117₁₀ / 165₈ / 75₁₆) (case insensitive)

2nd Alternative[ie]

Character Class[ie]

ithe literal i (105₁₀ / 151₈ / 69₁₆) (case insensitive)

ethe literal e (101₁₀ / 145₈ / 65₁₆) (case insensitive)

n?optionally matches the literal n (110₁₀ / 156₈ / 6E₁₆) (case insensitive)

gthe literal g (103₁₀ / 147₈ / 67₁₆) (case insensitive)

Group 2(st)?

?repeats the group contents below at most once:

stthe literal text st (case insensitive)

?optionally matches the literal (32₁₀ / 40₈ / 20₁₆)

usthe literal text us (case insensitive)

2nd Alternative(when ?the ?impost[oe]r ?is ?)?sus(picio(us|n)|pect)?

Group 3(when ?the ?impost[oe]r ?is ?)?

?repeats the group contents below at most once:

whenthe literal text when (case insensitive)

?optionally matches the literal (32₁₀ / 40₈ / 20₁₆)

thethe literal text the (case insensitive)

?optionally matches the literal (32₁₀ / 40₈ / 20₁₆)

impostthe literal text impost (case insensitive)

Character Class[oe]

othe literal o (111₁₀ / 157₈ / 6F₁₆) (case insensitive)

ethe literal e (101₁₀ / 145₈ / 65₁₆) (case insensitive)

rthe literal r (114₁₀ / 162₈ / 72₁₆) (case insensitive)

?optionally matches the literal (32₁₀ / 40₈ / 20₁₆)

isthe literal text is (case insensitive)

?optionally matches the literal (32₁₀ / 40₈ / 20₁₆)

susthe literal text sus (case insensitive)

Group 4(picio(us|n)|pect)?

?repeats the group contents below at most once:

1st Alternativepicio(us|n)

piciothe literal text picio (case insensitive)

Group 5(us|n)

1st Alternativeus

usthe literal text us (case insensitive)

2nd Alternativen

nthe literal n (110₁₀ / 156₈ / 6E₁₆) (case insensitive)

2nd Alternativepect

pectthe literal text pect (case insensitive)

3rd Alternativeimpost[oe]r

impostthe literal text impost (case insensitive)

Character Class[oe]

othe literal o (111₁₀ / 157₈ / 6F₁₆) (case insensitive)

ethe literal e (101₁₀ / 145₈ / 65₁₆) (case insensitive)

rthe literal r (114₁₀ / 162₈ / 72₁₆) (case insensitive)

4th Alternative\u0D9E

\u0D9Ethe literal ඞ (D9E₁₆ / 6636₈ / 3486₁₀)

5th Alternative(?<=[\x20-\x7E]\b)( was( not)? the impost[oe]r| was ejected)

Positive Lookbehind(?<=[\x20-\x7E]\b)

Character Class[\x20-\x7E]

\x20-\x7Eone character from (32₁₀) to ~ (126₁₀)

\ba word boundary

Group 6( was( not)? the impost[oe]r| was ejected)

1st Alternative was( not)? the impost[oe]r

wasthe literal text was (case insensitive)

Group 7( not)?

?repeats the group contents below at most once:

notthe literal text not (case insensitive)

the impostthe literal text the impost (case insensitive)

Character Class[oe]

othe literal o (111₁₀ / 157₈ / 6F₁₆) (case insensitive)

ethe literal e (101₁₀ / 145₈ / 65₁₆) (case insensitive)

rthe literal r (114₁₀ / 162₈ / 72₁₆) (case insensitive)

2nd Alternative was ejected

6th Alternative\w+ impost[oe]rs? remains?

7th Alternativeemergency meeting

8th Alternativedead body reported

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

i modifier: insensitive. Matches without distinguishing uppercase and lowercase letters

u modifier: unicode. Enables Unicode-aware matching and escape syntax

Detailed match information will be displayed here automatically.

26 tokens

Regular Expression

a?m(ou?|[ie])n?g(st)? ?us|(when ?the ?impost[oe]r ?is ?)?sus(picio(us|n)|pect)?|impost[oe]r|\u0D9E|(?<=[\x20-\x7E]\b)( was( not)? the impost[oe]r| was ejected)|\w+ impost[oe]rs? remains?|emergency meeting|dead body reported

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