Regular Expressions 101

Pro

Group 1([A-Z](?:[\wí]+)\s*(?:d[Ee]l|de\s*el|de)\s*[A-Z](?:\w+))?

?repeats the group contents below at most once:

Character Class[A-Z]

A-Zone character from A (65₁₀) to Z (90₁₀) (case sensitive)

Non-Capturing Group(?:[\wí]+)

Character Class[\wí]+

+matches at least one character from the set below:

\wany word character

íthe literal í (237₁₀ / 355₈ / ED₁₆) (case sensitive)

\s*any whitespace character, repeated any number of times

Non-Capturing Group(?:d[Ee]l|de\s*el|de)

1st Alternatived[Ee]l

dthe literal d (100₁₀ / 144₈ / 64₁₆) (case sensitive)

Character Class[Ee]

Ethe literal E (69₁₀ / 105₈ / 45₁₆) (case sensitive)

ethe literal e (101₁₀ / 145₈ / 65₁₆) (case sensitive)

lthe literal l (108₁₀ / 154₈ / 6C₁₆) (case sensitive)

2nd Alternativede\s*el

dethe literal text de (case sensitive)

\s*any whitespace character, repeated any number of times

elthe literal text el (case sensitive)

3rd Alternativede

dethe literal text de (case sensitive)

\s*any whitespace character, repeated any number of times

Character Class[A-Z]

A-Zone character from A (65₁₀) to Z (90₁₀) (case sensitive)

Non-Capturing Group(?:\w+)

\w+any word character, repeated at least once

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

Detailed match information will be displayed here automatically.

25 tokens

Regular Expression

([A-Z](?:[\wí]+)\s*(?:d[Ee]l|de\s*el|de)\s*[A-Z](?:\w+))?

New

Creo que María del Pilar se trata de un nombre
Estoy segura que María dEl Pilar se tRatA De uN nOmbre
María del Carmen es un nombre viejo


([A-Z][\wí]+\s*(d[eE]l|de\s*el|de)\s*[A-Z]\w+)

Extraction

Creo que María del Pilar se trata de un nombre
Estoy segura que María dEl Pilar se tRatA De uN nOmbre
María del Carmen es un nombre viejo


([A-Z][\wí]+\s*(d[eE]l|de\s*el|de)\s*[A-Z]\w+)