Regular Expressions 101

(?x)applies the following effective flags to the remainder of the pattern: gmx

x modifier: extended. Ignores unescaped whitespace and comments outside character classes

^start of line

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

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

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

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

Character Class[ ]+

+matches at least one character from the set below:

the literal (32₁₀ / 40₈ / 20₁₆)

Group description(?<description>[\w ]*\w(?:[ ]+\d{2}\/\d{2})?)

Character Class[\w ]*

*matches any number of characters from the set below:

\wany word character

the literal (32₁₀ / 40₈ / 20₁₆)

\wany word character

Non-Capturing Group(?:[ ]+\d{2}\/\d{2})?

?repeats the group contents below at most once:

Character Class[ ]+

+matches at least one character from the set below:

the literal (32₁₀ / 40₈ / 20₁₆)

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

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

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

Character Class[ ]+

+matches at least one character from the set below:

the literal (32₁₀ / 40₈ / 20₁₆)

Group value_sign(?<value_sign>[-+]|)

1st Alternative[-+]

Character Class[-+]

-the literal - (45₁₀ / 55₈ / 2D₁₆)

+the literal + (43₁₀ / 53₈ / 2B₁₆)

2nd Alternative — matches an empty string

Character Class[ ]*

*matches any number of characters from the set below:

the literal (32₁₀ / 40₈ / 20₁₆)

Group value(?<value>\d+,\d{2})

\d+a digit, repeated at least once

,the literal , (44₁₀ / 54₈ / 2C₁₆)

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

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

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

Group categories(?<categories>\S.*)

\Sany non-whitespace character

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

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

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Search reference

Regular Expression

(?x)
^
(?<date>\d{2}\/\d{2})
[ ]+
(?<description>[\w ]*\w(?:[ ]+\d{2}\/\d{2})?)
[ ]+
(?<value_sign>[-+]|)
[ ]*
(?<value>\d+,\d{2})
\r?\n
(?<categories>\S.*)

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