Regular Expressions 101

^start of line

\s*a Unicode whitespace character, repeated any number of times

\ba Unicode word boundary

\d{1,2}a Unicode decimal digit, repeated between 1 and 2 times

\ba Unicode word boundary

Group 1(\s*\,?\s*\b\d{1,2}\b)*

*repeats the group contents below any number of times:

\s*a Unicode whitespace character, repeated any number of times

\,?optionally matches the literal , (44₁₀ / 54₈ / 2C₁₆)

\s*a Unicode whitespace character, repeated any number of times

\ba Unicode word boundary

\d{1,2}a Unicode decimal digit, repeated between 1 and 2 times

\ba Unicode word boundary

\s*a Unicode whitespace character, repeated any number of 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.

Search reference

Regular Expression

^\s*\b\d{1,2}\b(\s*\,?\s*\b\d{1,2}\b)*\s*$

New

11111111
   1
    1  2     3 3  4 5 7 17
 1, 2,3,11,74
1,11,14, 15
1,11,14,