gudn tach Twilo!
irgendwie verwirrst du mich mit deinen 2 Sätzen ;-)
vielleicht hilft der perl-text:
"perldoc perlre | grep -C \b"
zitat:
A word boundary ("\b") is a spot between two characters that has a "\w"
on one side of it and a "\W" on the other side of it (in either order),
counting the imaginary characters off the beginning and end of the
string as matching a "\W".
prost
seth