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UNICODE::WORDBREAK(3) Courier Unicode Library UNICODE::WORDBREAK(3) NAME unicode::wordbreak_callback_base, unicode::wordbreak - unicode word-break- ing 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) { // ... } }; char32_t c; std::u32string 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 algo- rithm, namely a bool indicating whether a word break exists before the uni- code 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 informa- tion. 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(), uni- code_wbscan_next() and unicode_wbscan_end methods described in uni- code_word_break(3). Its << iterates over the unicode characters, and fin- ish() 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 04/12/2026 UNICODE::WORDBREAK(3)
NAME | SYNOPSIS | DESCRIPTION | SEE ALSO | AUTHOR
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