Regular Expressions 101

^start of line

Character Class[\w'\- ]+?

+?matches at least one character from the set below:

\wany word character

'the literal ' (39₁₀ / 47₈ / 27₁₆)

\-the literal - (45₁₀ / 55₈ / 2D₁₆)

the literal (32₁₀ / 40₈ / 20₁₆)

Positive Lookahead(?= ?(?:\b(?:[IVXCMD]*|\w+\.)),)

?optionally matches the literal (32₁₀ / 40₈ / 20₁₆)

Non-Capturing Group(?:\b(?:[IVXCMD]*|\w+\.))

\ban ASCII word boundary

Non-Capturing Group(?:[IVXCMD]*|\w+\.)

1st Alternative[IVXCMD]*

Character Class[IVXCMD]*

*matches any number of characters from the set below:

Ithe literal I (73₁₀ / 111₈ / 49₁₆) (case sensitive)

Vthe literal V (86₁₀ / 126₈ / 56₁₆) (case sensitive)

Xthe literal X (88₁₀ / 130₈ / 58₁₆) (case sensitive)

Cthe literal C (67₁₀ / 103₈ / 43₁₆) (case sensitive)

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

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

2nd Alternative\w+\.

\w+any word character, repeated at least once

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

,the literal , (44₁₀ / 54₈ / 2C₁₆)

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.

Search reference

Regular Expression

^[\w'\- ]+?(?= ?(?:\b(?:[IVXCMD]*|\w+\.)),)

New

O'Kefe,Shiley
Folenza,Mitchel V
Briscoe Jr.,Sanford Ray
Andade-Alarenga,Blnca 
De La Cru,Feando
Carone,Letca Jo
O'Conor,Mole K
Daeron III,Lawence P
Randall,Jason L
Esquel Mendez,Mara D
Dinle III,Jams E
Coras Sr.,Cleybr E
Hsieh-Krnk,Caolyn E
Graves II,Theodore R