Re: [Boost-users] [regex] why character class [:xdigit:] does not workin my sample example ??

Chandan Nilange wrote:

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Hello,

Why does the boost regex sample program attached here, doesnot generate match for character class [:xdigit:] Do we need to enable this character class explicity? If yes, how to enable it?

The expression "[:xdigit:]" that you're using will match any of the characters ":", , "x", "d", "i", "g" or "t". Use "[[:xdigit:]]" to match a hex digit character. John.