Regular Expressions 101

Pro

Group 1((--\S+=\S+|--\S+)(?=\s+|\S+|$))

Group 2(--\S+=\S+|--\S+)

1st Alternative--\S+=\S+

--the literal text --

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

=the literal = (61₁₀ / 75₈ / 3D₁₆)

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

2nd Alternative--\S+

--the literal text --

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

Positive Lookahead(?=\s+|\S+|$)

1st Alternative\s+

\s+any whitespace character, repeated at least once

2nd Alternative\S+

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

3rd Alternative$

$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.

25 tokens

((--\S+=\S+|--\S+)(?=\s+|\S+|$))

New

--flag --k1=v1 --k2=v2 -k3=v3 --k4=v4