Regular Expressions 101

Pro

\*the literal * (42₁₀ / 52₈ / 2A₁₆)

Group 1([^\s*](?:[^*]*[^\s*])?)

Negated Character Class[^\s*]

\sany whitespace character

*the literal * (42₁₀ / 52₈ / 2A₁₆)

Non-Capturing Group(?:[^*]*[^\s*])?

?repeats the group contents below at most once:

Negated Character Class[^*]*

*matches any number of characters outside the set below:

*the literal * (42₁₀ / 52₈ / 2A₁₆)

Negated Character Class[^\s*]

\sany whitespace character

*the literal * (42₁₀ / 52₈ / 2A₁₆)

\*the literal * (42₁₀ / 52₈ / 2A₁₆)

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

Regular Expression

\*([^\s*](?:[^*]*[^\s*])?)\*

New

* n* *n * *bold* * M *
* text* //don't match
******** //don't match
*text * //don't match
* text * //don't match
*  text* //don't match
*text* //match
*Hello World !* //match
*a*

Substitution

* n* *n * *bold* * M *
* text* //don't match
******** //don't match
*text * //don't match
* text * //don't match
*  text* //don't match
*text* //match
*Hello World !* //match
*a*