Regular Expressions 101

\ban ASCII word boundary

Athe literal A (65₁₀ / 101₈ / 41₁₆) (case sensitive)

Non-Capturing Group(?: \K)?

?repeats the group contents below at most once:

the literal (32₁₀ / 40₈ / 20₁₆)

\Kresets the starting point of the reported match. Any previously consumed characters are no longer included in the final match

\S+any non-whitespace character, repeated at least once

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

Detailed match information will be displayed here automatically.

25 tokens

Regular Expression

\bA(?: \K)?\S+

New

Given:  A23+    returns   A23+
Given:  A 23+   returns   23+
Given:  A.rg23- returns   A.rg23-
Given:  A .rg23- returns  .rg23-

Given:  A23+    returns   A23+
Given:  A 23+   returns   23+
Given:  A.rg23- returns   A.rg23-
Given:  A .rg23- returns  .rg23-