regex101: Python Match Workspace

IVRthe literal text IVR (case sensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

\d{8}a Unicode decimal digit, repeated exactly 8 times

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Group 1(M{0,4}(?:CM|CD|D?C{0,3})(?:XC|XL|L?X{0,3})(?:IX|IV|V?I{0,3}))

M{0,4}the literal M (77₁₀ / 115₈ / 4D₁₆) (case sensitive), repeated between 0 and 4 times

Non-Capturing Group(?:CM|CD|D?C{0,3})

1st AlternativeCM

CMthe literal text CM (case sensitive)

2nd AlternativeCD

CDthe literal text CD (case sensitive)

3rd AlternativeD?C{0,3}

D?optionally matches the literal D (68₁₀ / 104₈ / 44₁₆) (case sensitive)

C{0,3}the literal C (67₁₀ / 103₈ / 43₁₆) (case sensitive), repeated between 0 and 3 times

Non-Capturing Group(?:XC|XL|L?X{0,3})

1st AlternativeXC

XCthe literal text XC (case sensitive)

2nd AlternativeXL

XLthe literal text XL (case sensitive)

3rd AlternativeL?X{0,3}

L?optionally matches the literal L (76₁₀ / 114₈ / 4C₁₆) (case sensitive)

X{0,3}the literal X (88₁₀ / 130₈ / 58₁₆) (case sensitive), repeated between 0 and 3 times

Non-Capturing Group(?:IX|IV|V?I{0,3})

1st AlternativeIX

IXthe literal text IX (case sensitive)

2nd AlternativeIV

IVthe literal text IV (case sensitive)

3rd AlternativeV?I{0,3}

V?optionally matches the literal V (86₁₀ / 126₈ / 56₁₆) (case sensitive)

I{0,3}the literal I (73₁₀ / 111₈ / 49₁₆) (case sensitive), repeated between 0 and 3 times

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Group 2(M{0,4}(?:CM|CD|D?C{0,3})(?:XC|XL|L?X{0,3})(?:IX|IV|V?I{0,3}))

M{0,4}the literal M (77₁₀ / 115₈ / 4D₁₆) (case sensitive), repeated between 0 and 4 times

Non-Capturing Group(?:CM|CD|D?C{0,3})

1st AlternativeCM

CMthe literal text CM (case sensitive)

2nd AlternativeCD

CDthe literal text CD (case sensitive)

3rd AlternativeD?C{0,3}

D?optionally matches the literal D (68₁₀ / 104₈ / 44₁₆) (case sensitive)

C{0,3}the literal C (67₁₀ / 103₈ / 43₁₆) (case sensitive), repeated between 0 and 3 times

Non-Capturing Group(?:XC|XL|L?X{0,3})

1st AlternativeXC

XCthe literal text XC (case sensitive)

2nd AlternativeXL

XLthe literal text XL (case sensitive)

3rd AlternativeL?X{0,3}

L?optionally matches the literal L (76₁₀ / 114₈ / 4C₁₆) (case sensitive)

X{0,3}the literal X (88₁₀ / 130₈ / 58₁₆) (case sensitive), repeated between 0 and 3 times

Non-Capturing Group(?:IX|IV|V?I{0,3})

1st AlternativeIX

IXthe literal text IX (case sensitive)

2nd AlternativeIV

IVthe literal text IV (case sensitive)

3rd AlternativeV?I{0,3}

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Group 3(\d{7,9})

Global pattern flags

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

Search reference

Regular Expression

IVR\/\d{8}\/(M{0,4}(?:CM|CD|D?C{0,3})(?:XC|XL|L?X{0,3})(?:IX|IV|V?I{0,3}))\/(M{0,4}(?:CM|CD|D?C{0,3})(?:XC|XL|L?X{0,3})(?:IX|IV|V?I{0,3}))\/(\d{7,9})

New

your invoice number IVR/20170531/XVII/V/12652967 and IVR/20170531/XVII/V/13652967

Regular Expressions 101

Regular Expression

Substitution