Regular Expressions 101

Pro

\Astart of string

.*any character (except for line terminators), repeated any number of times

Non-Capturing Group(?:\r?\n(?!\w{4}-Processado\spor\sprograma\b).*)*

*repeats the group contents below any number of times:

\r?optionally matches a carriage return (ASCII 13)

\na line-feed (newline) character (ASCII 10)

Negative Lookahead(?!\w{4}-Processado\spor\sprograma\b)

\w{4}any word character, repeated exactly 4 times

-Processadothe literal text -Processado (case sensitive)

\sany whitespace character

porthe literal text por (case sensitive)

\sany whitespace character

programathe literal text programa (case sensitive)

\ban ASCII word boundary

.*any character (except for line terminators), repeated any number of times

\r?optionally matches a carriage return (ASCII 13)

\na line-feed (newline) character (ASCII 10)

Group 1(\w{4})

\w{4}any word character, repeated exactly 4 times

Global pattern flags

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

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25 tokens

\A.*(?:\r?\n(?!\w{4}-Processado\spor\sprograma\b).*)*\r?\n(\w{4})

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