Regular Expressions 101

1st Alternative#\b.*?\b#

#the literal # (35₁₀ / 43₈ / 23₁₆)

\ban ASCII word boundary

.*?any character (except for line terminators), repeated any number of times

\ban ASCII word boundary

#the literal # (35₁₀ / 43₈ / 23₁₆)

2nd Alternative\B#\w+

\Bnot an ASCII word boundary

#the literal # (35₁₀ / 43₈ / 23₁₆)

\w+any word 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

#\b.*?\b#|\B#\w+

New

Case 1 :

Hello, #how are you# today. 
In this case, I want to detect how are you. Now if there is only a word, then the above case is to be ignored.

Case 2 :

Hello, #how are you #today.