regex101: PCRE (Legacy) Match Workspace

Pro

1st Alternative\d+(?:[.,]\d+)*(?=\s*BDT)

\d+a digit, repeated at least once

Non-Capturing Group(?:[.,]\d+)*

*repeats the group contents below any number of times:

Character Class[.,]

.the literal . (46₁₀ / 56₈ / 2E₁₆)

,the literal , (44₁₀ / 54₈ / 2C₁₆)

\d+a digit, repeated at least once

Positive Lookahead(?=\s*BDT)

\s*any whitespace character, repeated any number of times

BDTthe literal text BDT (case sensitive)

2nd Alternative(?<=TK\s)\d+(?:[.,]\d+)*

Positive Lookbehind(?<=TK\s)

TKthe literal text TK (case sensitive)

\sany whitespace character

\d+a digit, repeated at least once

Non-Capturing Group(?:[.,]\d+)*

*repeats the group contents below any number of times:

Character Class[.,]

.the literal . (46₁₀ / 56₈ / 2E₁₆)

,the literal , (44₁₀ / 54₈ / 2C₁₆)

\d+a digit, repeated at least once

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

25 tokens

Regular Expression

\d+(?:[.,]\d+)*(?=\s*BDT)|(?<=TK\s)\d+(?:[.,]\d+)*

Dear IBBL CH Purchased 10.00 BDT at grameenphone.com, BD on 05.09.21 20:06 Card ***9793 Avl Bal: 930.53 B DT Help:16259 Get 10%discount from DARAZ *T&C

TK 20,312.84 has been refunded into your A/C **04994509 at 10/01/21 03:27 PM for NPSB Transfer: 71210110003106, Balance:21,019.50. Help:16259,8331090 - IBBL iBanking

Substitution

Dear IBBL CH Purchased 10.00 BDT at grameenphone.com, BD on 05.09.21 20:06 Card ***9793 Avl Bal: 930.53 B DT Help:16259 Get 10%discount from DARAZ *T&C

TK 20,312.84 has been refunded into your A/C **04994509 at 10/01/21 03:27 PM for NPSB Transfer: 71210110003106, Balance:21,019.50. Help:16259,8331090 - IBBL iBanking