Regular Expressions 101

^start of line

Group name(?<name>[A-Z][a-z]{3,7})

Character Class[A-Z]

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

Character Class[a-z]{3,7}

{3,7}matches between 3 and 7 characters from the set below:

a-zone character from a (97₁₀) to z (122₁₀) (case sensitive)

Group 2(\s+(?<family>[A-Z][a-z]{2,}))?

?repeats the group contents below at most once:

\s+any whitespace character, repeated at least once

Group family(?<family>[A-Z][a-z]{2,})

Character Class[A-Z]

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

Character Class[a-z]{2,}

{2,}matches at least 2 characters from the set below:

a-zone character from a (97₁₀) to z (122₁₀) (case sensitive)

Group 4(\s+(?<facultyNumber>\d{5,10}))?

?repeats the group contents below at most once:

\s+any whitespace character, repeated at least once

Group facultyNumber(?<facultyNumber>\d{5,10})

\d{5,10}a digit, repeated between 5 and 10 times

$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

Detailed match information will be displayed here automatically.

25 tokens

Regular Expression

^(?<name>[A-Z][a-z]{3,7})(\s+(?<family>[A-Z][a-z]{2,}))?(\s+(?<facultyNumber>\d{5,10}))?$

New

Valid All 12345
Valid Names
With 123456
Name
Invalid Faculcy 111111111111111
Invalid family 22222222
invalid Name 33333333
Verylongname Error
InvaliD Name 44444
Invalid FamilY 55555
Name12345
Long Familiiiiiiiiiiiiiiiii 12345

Regular Expression

Extraction