\w stands for "word character", usually [A-Za-z0-9_] . Notice the inclusion of the underscore and digits. \B is the negated version of \b . \B ... ... <看更多>

A regular expression (aka regex) is a sequence of characters that define a search pattern, mainly for use in pattern matching with text ... ... <看更多>

Regex Meaning Mathematica command ... you could just as well use the regular expression itself, which might be simpler if you're familiar with regexes: ... <看更多>