Regular Expressions 101

Pro

^start of line

Non-Capturing Group(?:SS(?:FW|DC)?|[HT]R)

1st AlternativeSS(?:FW|DC)?

SSthe literal text SS (case sensitive)

Non-Capturing Group(?:FW|DC)?

?repeats the group contents below at most once:

1st AlternativeFW

FWthe literal text FW (case sensitive)

2nd AlternativeDC

DCthe literal text DC (case sensitive)

2nd Alternative[HT]R

Character Class[HT]

Hthe literal H (72₁₀ / 110₈ / 48₁₆) (case sensitive)

Tthe literal T (84₁₀ / 124₈ / 54₁₆) (case sensitive)

Rthe literal R (82₁₀ / 122₈ / 52₁₆) (case sensitive)

\d{3,5}a digit, repeated between 3 and 5 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

^(?:SS(?:FW|DC)?|[HT]R)\d{3,5}$

New

SSDC66765
SSCD
SSTY
SS123
SSFW12345
SSDC123
HR123
TR123

SSDC66765
SSCD
SSTY
SS123
SSFW12345
SSDC123
HR123
TR123