Regular Expressions 101

Explanation
Pro

Group 1(\w+)

\w+a Unicode word character, repeated at least once

Negative Lookahead(?!\()

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

\W+any character that is not a Unicode word character, repeated at least once

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

(\w+)(?!\()\W+

y ~ word1+word2 - 3word:word4        ** word5 + Function(word6)

y ~ word1+word2 - 3word:word4        ** word5 + Function(word6)