Regexp: group for every found item (PCRE)

I am using PCRE with C++ (Borland) and want to get all matches of a group.

^(\w+\s)(\w+\s)*(\w+)$

input 1: first s开发者_JAVA百科econd third results in 3 groups (first, second and third)

input 2:first second second third results in 3 groups (first, second and third) too, but I need 4 groups.

The second word is optinal and occurs 0 - n times.

// EDIT:

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PCRE seems to have a split function, so if you know your delimiters are a group of whitespace, you should split the text and, depending on the count of splitted fields, react accordingly.

Regards

rbo

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I think your best shot is to match :

^(\w+\s)((?:\w+\s)*)(\w+)$

and then match the inside x words by hand, looking for \s with string comparison.