regex101: Python Match Workspace

^start of line

Pthe literal P (80₁₀ / 120₈ / 50₁₆) (case insensitive)

Negative Lookahead(?!$)

$end of line

Group 1((\d+Y)|(\d+\.\d+Y$))?

?repeats the group contents below at most once:

1st Alternative(\d+Y)

Group 2(\d+Y)

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

Ythe literal Y (89₁₀ / 131₈ / 59₁₆) (case insensitive)

2nd Alternative(\d+\.\d+Y$)

Group 3(\d+\.\d+Y$)

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

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

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

Ythe literal Y (89₁₀ / 131₈ / 59₁₆) (case insensitive)

$end of line

Group 4((\d+M)|(\d+\.\d+M$))?

?repeats the group contents below at most once:

1st Alternative(\d+M)

Group 5(\d+M)

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

Mthe literal M (77₁₀ / 115₈ / 4D₁₆) (case insensitive)

2nd Alternative(\d+\.\d+M$)

Group 6(\d+\.\d+M$)

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

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

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

Mthe literal M (77₁₀ / 115₈ / 4D₁₆) (case insensitive)

$end of line

Group 7((\d+W)|(\d+\.\d+W$))?

?repeats the group contents below at most once:

1st Alternative(\d+W)

Group 8(\d+W)

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

Wthe literal W (87₁₀ / 127₈ / 57₁₆) (case insensitive)

2nd Alternative(\d+\.\d+W$)

Group 9(\d+\.\d+W$)

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

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

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

Wthe literal W (87₁₀ / 127₈ / 57₁₆) (case insensitive)

$end of line

Group 10((\d+D)|(\d+\.\d+D$))?

?repeats the group contents below at most once:

1st Alternative(\d+D)

Group 11(\d+D)

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

Dthe literal D (68₁₀ / 104₈ / 44₁₆) (case insensitive)

2nd Alternative(\d+\.\d+D$)

Group 12(\d+\.\d+D$)

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

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

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

Dthe literal D (68₁₀ / 104₈ / 44₁₆) (case insensitive)

$end of line

Group 13(T(?=\d)((\d+H)|(\d+\.\d+H$))?((\d+M)|(\d+\.\d+M$))?(\d+(\.\d+)?S)?)??

??repeats the group contents below at most once:

Tthe literal T (84₁₀ / 124₈ / 54₁₆) (case insensitive)

Positive Lookahead(?=\d)

\da Unicode decimal digit

Group 14((\d+H)|(\d+\.\d+H$))?

?repeats the group contents below at most once:

1st Alternative(\d+H)

Group 15(\d+H)

2nd Alternative(\d+\.\d+H$)

Group 17((\d+M)|(\d+\.\d+M$))?

Group 20(\d+(\.\d+)?S)?

$end of line

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

i modifier: insensitive. Matches without distinguishing uppercase and lowercase letters

25 tokens

Regular Expression

^P(?!$)((\d+Y)|(\d+\.\d+Y$))?((\d+M)|(\d+\.\d+M$))?((\d+W)|(\d+\.\d+W$))?((\d+D)|(\d+\.\d+D$))?(T(?=\d)((\d+H)|(\d+\.\d+H$))?((\d+M)|(\d+\.\d+M$))?(\d+(\.\d+)?S)?)??$

Unit Tests

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