Questions about builtin RegExp

[Andrew Fedoniouk]

"Walter Bright" <newshound at digitalmars.com> wrote in message 
news:dt9ho8$20e4$3 at digitaldaemon.com...

>>> Writing a real lexer takes a lot of effort. That's why people invented 
>>> regex, it'll handle most jobs without having to write a lexer. C's 
>>> strtok() is embarassingly inadequate.
>>
>> Why?
>
> I'd like to see strtok() parse an email address out of a body of text.
>

I don't really understand "parse an email address out of a body of text."

Do you mean something like this:

char* pw = text;
url u;

forever
{
  pw = strtok( pw, " \t\n\r" ); if( !pw ) return;
  if( !u.parse(pw) ) continue;
  if( u.protocol() == url::MAILTO )
     //found - do something here
     ;
};

?

Andrew.