Regular Expressions 101

Pro

^start of line

Character Class[A-Z]

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

Character Class[a-z0-9_-]*

*matches any number of characters from the set below:

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

0-9one character from 0 (48₁₀) to 9 (57₁₀)

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Group 1( +[A-Z][a-z0-9_-]*)*

*repeats the group contents below any number of times:

+the literal (32₁₀ / 40₈ / 20₁₆) , repeated at least once

Character Class[A-Z]

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

Character Class[a-z0-9_-]*

*matches any number of characters from the set below:

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

0-9one character from 0 (48₁₀) to 9 (57₁₀)

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

$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

^[A-Z][a-z0-9_-]*( +[A-Z][a-z0-9_-]*)*$

New

TesT Name
TEST NAME
Test Name
Test-here Name-there
Test-here Name-------there

TesT Name
TEST NAME
Test Name
Test-here Name-there
Test-here Name-------there