Regular Expressions 101

Pro

^start of line

Non-Capturing Group(?:-+\w|\w+-)

1st Alternative-+\w

-+the literal - (45₁₀ / 55₈ / 2D₁₆) , repeated at least once

\wany word character

2nd Alternative\w+-

\w+any word character, repeated at least once

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Character Class[\w-]*

*matches any number of characters from the set below:

\wany word character

-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

^(?:-+\w|\w+-)[\w-]*$

New

---vsgvrf-sgwfwrgfs---
-----hwvchwbfk
bfcbewubf------
-efefe-ege-
-gdiwen

a
---

---vsgvrf-sgwfwrgfs---
-----hwvchwbfk
bfcbewubf------
-efefe-ege-
-gdiwen

a
---