Regular Expressions 101

Explanation

Pro

Group 1((?:(?<=Mr. )|(?<=Miss. )|(?<=Master. ))\w+|(?<=\()\w+)

1st Alternative(?:(?<=Mr. )|(?<=Miss. )|(?<=Master. ))\w+

Non-Capturing Group(?:(?<=Mr. )|(?<=Miss. )|(?<=Master. ))

1st Alternative(?<=Mr. )

Positive Lookbehind(?<=Mr. )

Mrthe literal text Mr (case sensitive)

.any Unicode character (except for line terminators)

the literal (32₁₀ / 40₈ / 20₁₆)

2nd Alternative(?<=Miss. )

Positive Lookbehind(?<=Miss. )

Missthe literal text Miss (case sensitive)

.any Unicode character (except for line terminators)

the literal (32₁₀ / 40₈ / 20₁₆)

3rd Alternative(?<=Master. )

Positive Lookbehind(?<=Master. )

Masterthe literal text Master (case sensitive)

.any Unicode character (except for line terminators)

the literal (32₁₀ / 40₈ / 20₁₆)

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

2nd Alternative(?<=\()\w+

Positive Lookbehind(?<=\()

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

\w+a Unicode 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

Match Information

Detailed match information will be displayed here automatically.

Quick Reference

25 tokens

Regular Expression

((?:(?<=Mr. )|(?<=Miss. )|(?<=Master. ))\w+|(?<=\()\w+)

New

Braund, Mr. Owen Harris
Cumings, Mrs. John Bradley (Florence Briggs Thayer)
Heikkinen, Miss. Laina
Futrelle, Mrs. Jacques Heath (Lily May Peel)
Allen, Mr. William Henry
Moran, Mr. James
McCarthy, Mr. Timothy J
Palsson, Master. Gosta Leonard
Johnson, Mrs. Oscar W (Elisabeth Vilhelmina Berg)
Nasser, Mrs. Nicholas (Adele Achem)

Substitution

Braund, Mr. Owen Harris
Cumings, Mrs. John Bradley (Florence Briggs Thayer)
Heikkinen, Miss. Laina
Futrelle, Mrs. Jacques Heath (Lily May Peel)
Allen, Mr. William Henry
Moran, Mr. James
McCarthy, Mr. Timothy J
Palsson, Master. Gosta Leonard
Johnson, Mrs. Oscar W (Elisabeth Vilhelmina Berg)
Nasser, Mrs. Nicholas (Adele Achem)