ResultsIteratorImpl.cpp
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/*
* File: ResultsIteratorImpl.cpp
* Author: mlenart
*
* Created on 26 czerwiec 2014, 14:37
*/
#include "ResultsIteratorImpl.hpp"
#include <cstring>
#include <stdexcept>
namespace morfeusz {
ResultsIteratorImpl::ResultsIteratorImpl(const MorfeuszImpl& morfeusz, const char* text, const char* textEnd, bool isOwnerOfText)
:
morfeusz(morfeusz),
text(text),
isOwnerOfText(isOwnerOfText),
reader(text, textEnd, morfeusz.analyzerEnv),
buffer(),
bufferIterator(buffer.begin()) {
}
ResultsIteratorImpl::~ResultsIteratorImpl() {
if (isOwnerOfText) {
delete text;
}
}
bool ResultsIteratorImpl::hasNext() {
return bufferIterator != buffer.end() || tryToReadIntoBuffer();
}
const MorphInterpretation& ResultsIteratorImpl::peek() {
ensureHasNext();
return *bufferIterator;
}
MorphInterpretation ResultsIteratorImpl::next() {
ensureHasNext();
return *bufferIterator++;
}
void ResultsIteratorImpl::ensureHasNext() {
if (!hasNext()) {
throw std::out_of_range("No more interpretations available to ResultsIterator");
}
}
bool ResultsIteratorImpl::tryToReadIntoBuffer() {
assert(bufferIterator == buffer.end());
buffer.resize(0);
if (!reader.isAtEnd()) {
morfeusz.analyseOneWord(reader, buffer);
}
bufferIterator = buffer.begin();
return bufferIterator != buffer.end();
}
}