Regular Expressions 101

Pro

^start of line

\d{4}a digit, repeated exactly 4 times

Non-Capturing Group(?:\s+\d{4})+

+repeats the group contents below at least once:

\s+any whitespace character, repeated at least once

\d{4}a digit, repeated exactly 4 times

Positive Lookahead(?= = \d+ Rb\b)

= the literal text =

\d+a digit, repeated at least once

Rbthe literal text Rb (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.

26 tokens

Regular Expression

^\d{4}(?:\s+\d{4})+(?= = \d+ Rb\b)

New

MZ 09/10/2020 Zvwi‡L AbywôZ MCQ Test G DËxY© cÖv_©x‡`i ‡ivj b¤^‡ii ZvwjKv t
(cÖKvwkZ djvd‡j †Kv‡bv Kvi‡Y †Kv‡bv ms‡kva‡bi cÖ‡qvRb n‡j KZ©„cÿ Zv ms‡kva‡bi AwaKvi msiÿY K‡i)
9007 1027 1028 1029
7038 8040 1054 1055
0058 3062 1067 1069
3078 7097 1098 1106 = 16 Rb Kvi‡Y †Kv‡bv ms‡kva‡bi cÖ‡qvRb 3457,00867,1122 jtukh $3308