Regular Expressions 101

Group Instrument(?P<Instrument>[A-Z]+)

Character Class[A-Z]+

+matches at least one character from the set below:

A-Zone character from A (65₁₀) to Z (90₁₀) (case sensitive)

Group Year(?P<Year>\d{2})

\d{2}a Unicode decimal digit, repeated exactly 2 times

Group month(?P<month>\d{1}|[A-Z]+)

1st Alternative\d{1}

\d{1}a Unicode decimal digit, repeated exactly 1 time

2nd Alternative[A-Z]+

Character Class[A-Z]+

+matches at least one character from the set below:

A-Zone character from A (65₁₀) to Z (90₁₀) (case sensitive)

Group date(?P<date>\d{2})?

?repeats the group contents below at most once:

\d{2}a Unicode decimal digit, repeated exactly 2 times

Group strike(?P<strike>\d{5})

\d{5}a Unicode decimal digit, repeated exactly 5 times

Group CEorPE(?P<CEorPE>[A-Z]+)

Character Class[A-Z]+

+matches at least one character from the set below:

A-Zone character from A (65₁₀) to Z (90₁₀) (case sensitive)

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

(?P<Instrument>[A-Z]+)(?P<Year>\d{2})(?P<month>\d{1}|[A-Z]+)(?P<date>\d{2})?(?P<strike>\d{5})(?P<CEorPE>[A-Z]+)

New

NIFTY2431322000PE
NIFTY24DEC22000PE