Regular Expressions 101

^start of line

Character Class[A-Z0-9]+

+matches at least one character from the set below:

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

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

Non-Capturing Group(?:-[A-Z0-9]+)?

?repeats the group contents below at most once:

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Character Class[A-Z0-9]+

+matches at least one character from the set below:

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

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

Non-Capturing Group(?:,[A-Z0-9]+(?:-[A-Z0-9]+)?)*

*repeats the group contents below any number of times:

,the literal , (44₁₀ / 54₈ / 2C₁₆)

Character Class[A-Z0-9]+

+matches at least one character from the set below:

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

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

Non-Capturing Group(?:-[A-Z0-9]+)?

?repeats the group contents below at most once:

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Character Class[A-Z0-9]+

+matches at least one character from the set below:

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

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

$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.

Search reference

Regular Expression

^[A-Z0-9]+(?:-[A-Z0-9]+)?(?:,[A-Z0-9]+(?:-[A-Z0-9]+)?)*$

New

//Valid Values
D1
DF2,AB2
D1-2
A1, A2
D1 - 2
1 - FH15
1-R3
1,D2
1,H5,8,S4
1 , H5, 8, S4
1, D2, D6-8, 6-9
1,D2,D6-8,6-9,G2,8
1-D3,TT6-8
1-D3, TT6-8
1-3, VB8, 11-SD13, R15

//Invalid values
1*, 3
,1,F2
-1-TG3
12-D4,
D1-F2-
1- F2- 4
D10,/
1234s
F4-,8
4,-H5
D3-F-G7
D3 - F - G7
4 , - H5
1*,D
12 - D4

Regular Expression

Substitution