Regular Expressions 101

Group 1(^(\d+%((?!\r\n)\s+))(\[((\w+)((\-\w+)?((?!\r\n)\s+)?(\w+)?((?!\r\n)\s+)?(\d+)?(\,)?(\d+)?(\.)?(\d?)((?!\r\n)\s+)?(k?B)?)?((?!\r\n)\s+)?(\w+)?\]))?(((((?!\r\n)\s+)\[)(.+)\])*(((?!\r\n)\s+)(\[)(.+))?(\r?\n)))

^start of line

Group 2(\d+%((?!\r\n)\s+))

\d+a Unicode decimal digit, repeated at least once

%the literal % (37₁₀ / 45₈ / 25₁₆)

Group 3((?!\r\n)\s+)

Negative Lookahead(?!\r\n)

\ra carriage return (ASCII 13)

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

\s+a Unicode whitespace character, repeated at least once

Group 4(\[((\w+)((\-\w+)?((?!\r\n)\s+)?(\w+)?((?!\r\n)\s+)?(\d+)?(\,)?(\d+)?(\.)?(\d?)((?!\r\n)\s+)?(k?B)?)?((?!\r\n)\s+)?(\w+)?\]))?

?repeats the group contents below at most once:

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

Group 5((\w+)((\-\w+)?((?!\r\n)\s+)?(\w+)?((?!\r\n)\s+)?(\d+)?(\,)?(\d+)?(\.)?(\d?)((?!\r\n)\s+)?(k?B)?)?((?!\r\n)\s+)?(\w+)?\])

Group 6(\w+)

\w+a Unicode word character, repeated at least once

Group 7((\-\w+)?((?!\r\n)\s+)?(\w+)?((?!\r\n)\s+)?(\d+)?(\,)?(\d+)?(\.)?(\d?)((?!\r\n)\s+)?(k?B)?)?

?repeats the group contents below at most once:

Group 8(\-\w+)?

?repeats the group contents below at most once:

\-the literal - (45₁₀ / 55₈ / 2D₁₆)

\w+a Unicode word character, repeated at least once

Group 9((?!\r\n)\s+)?

?repeats the group contents below at most once:

Negative Lookahead(?!\r\n)

\ra carriage return (ASCII 13)

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

\s+a Unicode whitespace character, repeated at least once

Group 10(\w+)?

?repeats the group contents below at most once:

\w+a Unicode word character, repeated at least once

Group 11((?!\r\n)\s+)?

?repeats the group contents below at most once:

Negative Lookahead(?!\r\n)

\ra carriage return (ASCII 13)

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

\s+a Unicode whitespace character, repeated at least once

Group 12(\d+)?

?repeats the group contents below at most once:

\d+a Unicode decimal digit, repeated at least once

Group 13(\,)?

?repeats the group contents below at most once:

\,the literal , (44₁₀ / 54₈ / 2C₁₆)

Group 14(\d+)?

?repeats the group contents below at most once:

\d+a Unicode decimal digit, repeated at least once

Group 15(\.)?

?repeats the group contents below at most once:

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Group 16(\d?)

\d?optionally matches a Unicode decimal digit

Group 17((?!\r\n)\s+)?

?repeats the group contents below at most once:

Negative Lookahead(?!\r\n)

\ra carriage return (ASCII 13)

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

\s+a Unicode whitespace character, repeated at least once

Group 18(k?B)?

?repeats the group contents below at most once:

k?optionally matches the literal k (107₁₀ / 153₈ / 6B₁₆) (case sensitive)

Bthe literal B (66₁₀ / 102₈ / 42₁₆) (case sensitive)

Group 19((?!\r\n)\s+)?

?repeats the group contents below at most once:

Negative Lookahead(?!\r\n)

\ra carriage return (ASCII 13)

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

\s+a Unicode whitespace character, repeated at least once

Group 20(\w+)?

?repeats the group contents below at most once:

\w+a Unicode word character, repeated at least once

\]the literal ] (93₁₀ / 135₈ / 5D₁₆)

Group 21(((((?!\r\n)\s+)\[)(.+)\])*(((?!\r\n)\s+)(\[)(.+))?(\r?\n))

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

x

No unit tests · Add a test to get started

Search reference

Regular Expression

(^(\d+%((?!\r\n)\s+))(\[((\w+)((\-\w+)?((?!\r\n)\s+)?(\w+)?((?!\r\n)\s+)?(\d+)?(\,)?(\d+)?(\.)?(\d?)((?!\r\n)\s+)?(k?B)?)?((?!\r\n)\s+)?(\w+)?\]))?(((((?!\r\n)\s+)\[)(.+)\])*(((?!\r\n)\s+)(\[)(.+))?(\r?\n)))

Unit Tests

There are no unit tests, click to add some.