Regular Expressions 101

1st Alternative\b(?<!-)\w+-\B

\ba Unicode word boundary

Negative Lookbehind(?<!-)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

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

-the literal - (45₁₀ / 55₈ / 2D₁₆)

\Bnot a Unicode word boundary

2nd Alternative\B-\w+\b(?!-)

\Bnot a Unicode word boundary

-the literal - (45₁₀ / 55₈ / 2D₁₆)

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

\ba Unicode word boundary

Negative Lookahead(?!-)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

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

\b(?<!-)\w+-\B|\B-\w+\b(?!-)

New

here are -some- word sub-words -word1 word2- sub-word2 word3- -word4
-word5 example
word6-
word7-
another one -word8
-word9