Regular Expressions 101

Pro

Group 1(\s*[0-9]+\s*([+-]+\s*[0-9]+\s*)*)

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

Character Class[0-9]+

+matches at least one character from the set below:

0-9one character from 0 (48₁₀) to 9 (57₁₀)

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

Group 2([+-]+\s*[0-9]+\s*)*

*repeats the group contents below any number of times:

Character Class[+-]+

+matches at least one character from the set below:

+the literal + (43₁₀ / 53₈ / 2B₁₆)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

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

Character Class[0-9]+

+matches at least one character from the set below:

0-9one character from 0 (48₁₀) to 9 (57₁₀)

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

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

(\s*[0-9]+\s*([+-]+\s*[0-9]+\s*)*)

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