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Size: 1.17 KB
Versions: 11
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Stored size: 1.17 KB
Contents
#ifndef CPPJIEBA_PRE_FILTER_H
#define CPPJIEBA_PRE_FILTER_H
#include "Trie.hpp"
#include "limonp/Logging.hpp"
namespace cppjieba {
class PreFilter {
public:
//TODO use WordRange instead of Range
struct Range {
RuneStrArray::const_iterator begin;
RuneStrArray::const_iterator end;
}; // struct Range
PreFilter(const unordered_set<Rune>& symbols,
const string& sentence)
: symbols_(symbols) {
if (!DecodeRunesInString(sentence, sentence_)) {
XLOG(ERROR) << "decode failed. ";
}
cursor_ = sentence_.begin();
}
~PreFilter() {
}
bool HasNext() const {
return cursor_ != sentence_.end();
}
Range Next() {
Range range;
range.begin = cursor_;
while (cursor_ != sentence_.end()) {
if (IsIn(symbols_, cursor_->rune)) {
if (range.begin == cursor_) {
cursor_ ++;
}
range.end = cursor_;
return range;
}
cursor_ ++;
}
range.end = sentence_.end();
return range;
}
private:
RuneStrArray::const_iterator cursor_;
RuneStrArray sentence_;
const unordered_set<Rune>& symbols_;
}; // class PreFilter
} // namespace cppjieba
#endif // CPPJIEBA_PRE_FILTER_H
Version data entries
11 entries across 11 versions & 2 rubygems