本文整理汇总了C++中StringPiece类的典型用法代码示例。如果您正苦于以下问题：C++ StringPiece类的具体用法？C++ StringPiece怎么用？C++ StringPiece使用的例子？那么, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了StringPiece类的14个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: scanHaystackBlock
inline size_t scanHaystackBlock(const StringPiece& haystack,
const StringPiece& needles,
int64_t blockStartIdx) {
DCHECK_GT(needles.size(), 16); // should handled by *needles16() method
DCHECK(blockStartIdx + 16 <= haystack.size() ||
(PAGE_FOR(haystack.data() + blockStartIdx) ==
PAGE_FOR(haystack.data() + blockStartIdx + 15)));
__v16qi arr1;
if (HAYSTACK_ALIGNED) {
void* ptr1 = __builtin_assume_aligned(haystack.data() + blockStartIdx, 16);
arr1 = *reinterpret_cast<const __v16qi*>(ptr1);
} else {
arr1 = __builtin_ia32_loaddqu(haystack.data() + blockStartIdx);
}
// This load is safe because needles.size() >= 16
auto arr2 = __builtin_ia32_loaddqu(needles.data());
size_t b = __builtin_ia32_pcmpestri128(
arr2, 16, arr1, haystack.size() - blockStartIdx, 0);
size_t j = nextAlignedIndex(needles.data());
for (; j < needles.size(); j += 16) {
void* ptr2 = __builtin_assume_aligned(needles.data() + j, 16);
arr2 = *reinterpret_cast<const __v16qi*>(ptr2);
auto index = __builtin_ia32_pcmpestri128(
arr2, needles.size() - j, arr1, haystack.size() - blockStartIdx, 0);
b = std::min<size_t>(index, b);
}
if (b < 16) {
return blockStartIdx + b;
}
return StringPiece::npos;
}示例2: SetSparseScore
void TargetPhrase::SetSparseScore(const FeatureFunction* translationScoreProducer, const StringPiece &sparseString)
{
m_scoreBreakdown.Assign(translationScoreProducer, sparseString.as_string());
}示例3: prepend
void prepend(std::unique_ptr<IOBuf>& buf, StringPiece str) {
EXPECT_LE(str.size(), buf->headroom());
memcpy(buf->writableData() - str.size(), str.data(), str.size());
buf->prepend(str.size());
}示例4: Uncompress
bool BlockCompression::Uncompress(StringPiece sp, std::string* out) {
return DoUncompress(sp.data(), sp.size(), out);
}示例5: operator
void operator()(StringPiece msg, double sec) {
m = msg.str();
t = sec;
}示例6: append
void append(std::unique_ptr<IOBuf>& buf, StringPiece str) {
EXPECT_LE(str.size(), buf->tailroom());
memcpy(buf->writableData(), str.data(), str.size());
buf->append(str.size());
}示例7: doPrint
void StringSymbolizePrinter::doPrint(StringPiece sp) {
buf_.append(sp.data(), sp.size());
}示例8: symbols
void DecimalFormatTest::execParseTest(int32_t lineNum,
const UnicodeString &inputText,
const UnicodeString &expectedType,
const UnicodeString &expectedDecimal,
UErrorCode &status) {
if (U_FAILURE(status)) {
return;
}
DecimalFormatSymbols symbols(Locale::getUS(), status);
UnicodeString pattern = UNICODE_STRING_SIMPLE("####");
DecimalFormat format(pattern, symbols, status);
Formattable result;
if (U_FAILURE(status)) {
dataerrln("file dcfmtest.txt, line %d: %s error creating the formatter.",
lineNum, u_errorName(status));
return;
}
ParsePosition pos;
int32_t expectedParseEndPosition = inputText.length();
format.parse(inputText, result, pos);
if (expectedParseEndPosition != pos.getIndex()) {
errln("file dcfmtest.txt, line %d: Expected parse position afeter parsing: %d. "
"Actual parse position: %d", expectedParseEndPosition, pos.getIndex());
return;
}
char expectedTypeC[2];
expectedType.extract(0, 1, expectedTypeC, 2, US_INV);
Formattable::Type expectType = Formattable::kDate;
switch (expectedTypeC[0]) {
case 'd': expectType = Formattable::kDouble; break;
case 'i': expectType = Formattable::kLong; break;
case 'l': expectType = Formattable::kInt64; break;
default:
errln("file dcfmtest.tx, line %d: unrecongized expected type \"%s\"",
lineNum, InvariantStringPiece(expectedType).data());
return;
}
if (result.getType() != expectType) {
errln("file dcfmtest.txt, line %d: expectedParseType(%s) != actual parseType(%s)",
lineNum, formattableType(expectType), formattableType(result.getType()));
return;
}
StringPiece decimalResult = result.getDecimalNumber(status);
if (U_FAILURE(status)) {
errln("File %s, line %d: error %s. Line in file dcfmtest.txt: %d:",
__FILE__, __LINE__, u_errorName(status), lineNum);
return;
}
InvariantStringPiece expectedResults(expectedDecimal);
if (decimalResult != expectedResults) {
errln("file dcfmtest.txt, line %d: expected \"%s\", got \"%s\"",
lineNum, expectedResults.data(), decimalResult.data());
}
return;
}示例9: PrintUserTime
bool RuleTableLoaderStandard::Load(FormatType format
, const std::vector<FactorType> &input
, const std::vector<FactorType> &output
, const std::string &inFile
, size_t /* tableLimit */
, RuleTableTrie &ruleTable)
{
PrintUserTime(string("Start loading text phrase table. ") + (format==MosesFormat?"Moses ":"Hiero ") + " format");
const StaticData &staticData = StaticData::Instance();
const std::string& factorDelimiter = staticData.GetFactorDelimiter();
string lineOrig;
size_t count = 0;
std::ostream *progress = NULL;
IFVERBOSE(1) progress = &std::cerr;
util::FilePiece in(inFile.c_str(), progress);
// reused variables
vector<float> scoreVector;
StringPiece line;
std::string hiero_before, hiero_after;
double_conversion::StringToDoubleConverter converter(double_conversion::StringToDoubleConverter::NO_FLAGS, NAN, NAN, "inf", "nan");
while(true) {
try {
line = in.ReadLine();
} catch (const util::EndOfFileException &e) {
break;
}
if (format == HieroFormat) { // inefficiently reformat line
hiero_before.assign(line.data(), line.size());
ReformatHieroRule(hiero_before, hiero_after);
line = hiero_after;
}
util::TokenIter<util::MultiCharacter> pipes(line, "|||");
StringPiece sourcePhraseString(*pipes);
StringPiece targetPhraseString(*++pipes);
StringPiece scoreString(*++pipes);
StringPiece alignString;
if (++pipes) {
StringPiece temp(*pipes);
alignString = temp;
}
if (++pipes) {
StringPiece str(*pipes); //counts
}
bool isLHSEmpty = (sourcePhraseString.find_first_not_of(" \t", 0) == string::npos);
if (isLHSEmpty && !staticData.IsWordDeletionEnabled()) {
TRACE_ERR( ruleTable.GetFilePath() << ":" << count << ": pt entry contains empty target, skipping\n");
continue;
}
scoreVector.clear();
for (util::TokenIter<util::AnyCharacter, true> s(scoreString, " \t"); s; ++s) {
int processed;
float score = converter.StringToFloat(s->data(), s->length(), &processed);
UTIL_THROW_IF2(isnan(score), "Bad score " << *s << " on line " << count);
scoreVector.push_back(FloorScore(TransformScore(score)));
}
const size_t numScoreComponents = ruleTable.GetNumScoreComponents();
if (scoreVector.size() != numScoreComponents) {
UTIL_THROW2("Size of scoreVector != number (" << scoreVector.size() << "!="
<< numScoreComponents << ") of score components on line " << count);
}
// parse source & find pt node
// constituent labels
Word *sourceLHS = NULL;
Word *targetLHS;
// create target phrase obj
TargetPhrase *targetPhrase = new TargetPhrase();
// targetPhrase->CreateFromString(Output, output, targetPhraseString, factorDelimiter, &targetLHS);
targetPhrase->CreateFromString(Output, output, targetPhraseString, &targetLHS);
// source
Phrase sourcePhrase;
// sourcePhrase.CreateFromString(Input, input, sourcePhraseString, factorDelimiter, &sourceLHS);
sourcePhrase.CreateFromString(Input, input, sourcePhraseString, &sourceLHS);
// rest of target phrase
targetPhrase->SetAlignmentInfo(alignString);
targetPhrase->SetTargetLHS(targetLHS);
//targetPhrase->SetDebugOutput(string("New Format pt ") + line);
if (++pipes) {
StringPiece sparseString(*pipes);
targetPhrase->SetSparseScore(&ruleTable, sparseString);
}
if (++pipes) {
//.........这里部分代码省略.........
示例10: mlre2__matches
CAMLprim value mlre2__matches(value v_regex, value v_str) {
StringPiece str = String_val(v_str);
return Val_int(Regex_val(v_regex)->Match(str, 0, str.length(),
RE2::UNANCHORED, NULL, 0));
}示例11: parse
void MacAddress::parse(StringPiece str) {
// Helper function to convert a single hex char into an integer
auto unhex = [](char c) -> int {
return c >= '0' && c <= '9' ? c - '0' :
c >= 'A' && c <= 'F' ? c - 'A' + 10 :
c >= 'a' && c <= 'f' ? c - 'a' + 10 :
-1;
};
auto isSeparatorChar = [](char c) {
return c == ':' || c == '-';
};
uint8_t parsed[SIZE];
auto p = str.begin();
for (unsigned int byteIndex = 0; byteIndex < SIZE; ++byteIndex) {
if (p == str.end()) {
throw invalid_argument(to<string>("invalid MAC address \"", str,
"\": not enough digits"));
}
// Skip over ':' or '-' separators between bytes
if (byteIndex != 0 && isSeparatorChar(*p)) {
++p;
if (p == str.end()) {
throw invalid_argument(to<string>("invalid MAC address \"", str,
"\": not enough digits"));
}
}
// Parse the upper nibble
int upper = unhex(*p);
if (upper < 0) {
throw invalid_argument(to<string>("invalid MAC address \"", str,
"\": contains non-hex digit"));
}
++p;
// Parse the lower nibble
int lower;
if (p == str.end()) {
lower = upper;
upper = 0;
} else {
lower = unhex(*p);
if (lower < 0) {
// Also accept ':', '-', or '\0', to handle the case where one
// of the bytes was represented by just a single digit.
if (isSeparatorChar(*p)) {
lower = upper;
upper = 0;
} else {
throw invalid_argument(to<string>("invalid MAC address \"", str,
"\": contains non-hex digit"));
}
}
++p;
}
// Update parsed with the newly parsed byte
parsed[byteIndex] = ((upper << 4) | lower);
}
if (p != str.end()) {
// String is too long to be a MAC address
throw invalid_argument(to<string>("invalid MAC address \"", str,
"\": found trailing characters"));
}
// Only update now that we have successfully parsed the entire
// string. This way we remain unchanged on error.
setFromBinary(ByteRange(parsed, SIZE));
}示例12: ignore_case_equal
bool StringPiece::ignore_case_equal(const StringPiece& other) const
{
return size() == other.size() && memcasecmp(data(), other.data(), size()) == 0;
}示例13: FindStringPiece
void GlobalLexicalModelUnlimited::Evaluate(const Hypothesis& cur_hypo, ScoreComponentCollection* accumulator) const
{
const Sentence& input = *(m_local->input);
const TargetPhrase& targetPhrase = cur_hypo.GetCurrTargetPhrase();
for(int targetIndex = 0; targetIndex < targetPhrase.GetSize(); targetIndex++ ) {
StringPiece targetString = targetPhrase.GetWord(targetIndex).GetString(0); // TODO: change for other factors
if (m_ignorePunctuation) {
// check if first char is punctuation
char firstChar = targetString[0];
CharHash::const_iterator charIterator = m_punctuationHash.find( firstChar );
if(charIterator != m_punctuationHash.end())
continue;
}
if (m_biasFeature) {
stringstream feature;
feature << "glm_";
feature << targetString;
feature << "~";
feature << "**BIAS**";
accumulator->SparsePlusEquals(feature.str(), 1);
}
boost::unordered_set<uint64_t> alreadyScored;
for(int sourceIndex = 0; sourceIndex < input.GetSize(); sourceIndex++ ) {
const StringPiece sourceString = input.GetWord(sourceIndex).GetString(0); // TODO: change for other factors
if (m_ignorePunctuation) {
// check if first char is punctuation
char firstChar = sourceString[0];
CharHash::const_iterator charIterator = m_punctuationHash.find( firstChar );
if(charIterator != m_punctuationHash.end())
continue;
}
const uint64_t sourceHash = util::MurmurHashNative(sourceString.data(), sourceString.size());
if (alreadyScored.find(sourceHash) == alreadyScored.end()) {
bool sourceExists, targetExists;
if (!m_unrestricted) {
sourceExists = FindStringPiece(m_vocabSource, sourceString) != m_vocabSource.end();
targetExists = FindStringPiece(m_vocabTarget, targetString) != m_vocabTarget.end();
}
// no feature if vocab is in use and both words are not in restricted vocabularies
if (m_unrestricted || (sourceExists && targetExists)) {
if (m_sourceContext) {
if (sourceIndex == 0) {
// add <s> trigger feature for source
stringstream feature;
feature << "glm_";
feature << targetString;
feature << "~";
feature << "<s>,";
feature << sourceString;
accumulator->SparsePlusEquals(feature.str(), 1);
alreadyScored.insert(sourceHash);
}
// add source words to the right of current source word as context
for(int contextIndex = sourceIndex+1; contextIndex < input.GetSize(); contextIndex++ ) {
StringPiece contextString = input.GetWord(contextIndex).GetString(0); // TODO: change for other factors
bool contextExists;
if (!m_unrestricted)
contextExists = FindStringPiece(m_vocabSource, contextString ) != m_vocabSource.end();
if (m_unrestricted || contextExists) {
stringstream feature;
feature << "glm_";
feature << targetString;
feature << "~";
feature << sourceString;
feature << ",";
feature << contextString;
accumulator->SparsePlusEquals(feature.str(), 1);
alreadyScored.insert(sourceHash);
}
}
}
else if (m_biphrase) {
// --> look backwards for constructing context
int globalTargetIndex = cur_hypo.GetSize() - targetPhrase.GetSize() + targetIndex;
// 1) source-target pair, trigger source word (can be discont.) and adjacent target word (bigram)
StringPiece targetContext;
if (globalTargetIndex > 0)
targetContext = cur_hypo.GetWord(globalTargetIndex-1).GetString(0); // TODO: change for other factors
else
targetContext = "<s>";
if (sourceIndex == 0) {
string sourceTrigger = "<s>";
AddFeature(accumulator, sourceTrigger, sourceString,
targetContext, targetString);
}
else
for(int contextIndex = sourceIndex-1; contextIndex >= 0; contextIndex-- ) {
StringPiece sourceTrigger = input.GetWord(contextIndex).GetString(0); // TODO: change for other factors
bool sourceTriggerExists = false;
//.........这里部分代码省略.........
示例14: GetVocabId
DALM::VocabId LanguageModelDALM::GetVocabId(const Factor *factor) const
{
StringPiece str = factor->GetString();
DALM::VocabId wid = m_vocab->lookup(str.as_string().c_str());
return wid;
}