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UNICODE::WORDBREAK(3)       Courier Unicode Library      UNICODE::WORDBREAK(3)

NAME
       unicode::wordbreak_callback_base, unicode::wordbreak_callback_base -
       unicode word-breaking rules

SYNOPSIS
       #include <courier-unicode.h>

       class wordbreak : public unicode::wordbreak_callback_base {

       public:

           using unicode::wordbreak_callback_base::operator<<;
           using unicode::wordbreak_callback_base::operator();
           int callback(bool flag)
           {
               // ...
           }
       };

       unicode_char c;
       std::vector<unicode_char> buf;

       wordbreak compute_wordbreak;

       compute_wordbreak << c;

       compute_wordbreak(buf);
       compute_wordbreak(buf.begin(), buf.end());

       compute_wordbreak.finish();

       // ...

       unicode_wordbreakscan scan;

       scan << c;

       size_t nchars=scan.finish();

DESCRIPTION
       unicode::wordbreak_callback_base is a C++ binding for the unicode
       word-breaking rule implementation described in unicode_word_break(3).

       Subclass unicode::wordbreak_callback_base and implement callback()
       that's virtually inherited from unicode::wordbreak_callback_base. The
       callback() callback function receives the output values from the
       word-breaking algorithm, namely a bool indicating whether a word break
       exists before the unicode character in the underlying input sequence.

       callback() should return 0. A non-zero return reports an error, that
       stops the word-breaking algorithm. See unicode_word_break(3) for more
       information.

       The input unicode characters for the word-breaking algorithm are
       provided by the << operator, one unicode character at a time; or by the
       () operator, passing either a container, or a beginning and an ending
       iterator value for an input sequence of unicode characters.  finish()
       indicates the end of the unicode character sequence.

       unicode::wordbreakscan is a C++ binding for the unicode_wbscan_init(),
       unicode_wbscan_next() and unicode_wbscan_end methods described in
       unicode_word_break(3). Its << iterates over the unicode characters, and
       finish() indicates the number of characters before the first unicode
       word break. The << iterator returns a bool indicating when the first
       word break has already been found, so further calls are not necessary.

SEE ALSO
       courier-unicode(7), unicode_word_break(3).

AUTHOR
       Sam Varshavchik
           Author

Courier Unicode Library           07/29/2015             UNICODE::WORDBREAK(3)