Regular Expressions 101

Pro

^start of line

Rthe literal R (82₁₀ / 122₈ / 52₁₆) (case sensitive)

Non-Capturing Group(?:\d{1,3}(?:[\s,]\d{3})+|\d+)

1st Alternative\d{1,3}(?:[\s,]\d{3})+

\d{1,3}a digit, repeated between 1 and 3 times

Non-Capturing Group(?:[\s,]\d{3})+

+repeats the group contents below at least once:

Character Class[\s,]

\sany whitespace character

,the literal , (44₁₀ / 54₈ / 2C₁₆)

\d{3}a digit, repeated exactly 3 times

2nd Alternative\d+

\d+a digit, repeated at least once

Non-Capturing Group(?:\.\d+)?

?repeats the group contents below at most once:

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

\d+a digit, repeated at least once

$end of line

Global pattern flags

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

g modifier: global. Finds all matches instead of stopping after the first

Detailed match information will be displayed here automatically.

26 tokens

^R(?:\d{1,3}(?:[\s,]\d{3})+|\d+)(?:\.\d+)?$

New

R4,491.25
R4491.25
R4491
R4,291.25
R4 291 456.25
asdasd6466546.6464
asdaR64.54asd
4asdas
dasd
afssad

R4,491.25
R4491.25
R4491
R4,291.25
R4 291 456.25
asdasd6466546.6464
asdaR64.54asd
4asdas
dasd
afssad