当前位置: 首页>>代码示例>>C++>>正文

C++ SourcePtr类代码示例

本文整理汇总了C++中SourcePtr类的典型用法代码示例。如果您正苦于以下问题：C++ SourcePtr类的具体用法？C++ SourcePtr怎么用？C++ SourcePtr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SourcePtr类的15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: read_lines_

// [[Rcpp::export]]
CharacterVector read_lines_(List sourceSpec, int n_max = -1) {
  SourcePtr source = Source::create(sourceSpec);
  TokenizerLine tokenizer;
  tokenizer.tokenize(source->begin(), source->end());

  int n = (n_max < 0) ? 1000 : n_max;
  CharacterVector out(n);

  int i = 0;
  for (Token t = tokenizer.nextToken(); t.type() != TOKEN_EOF; t = tokenizer.nextToken()) {
    if (i >= n) {
      if (n_max < 0) {
        n = (n * 3)/2 + 1;
        out = Rf_lengthgets(out, n);
      } else {
        break;
      }
    }

    if (t.type() == TOKEN_STRING)
      out[i] = t.asString();

    ++i;
  }

  if (i < n) {
    out = Rf_lengthgets(out, i);
  }

  return out;
}
开发者ID:HuichunChien，项目名称:readr，代码行数:32，代码来源:read.cpp

示例2: tokenize_

// [[Rcpp::export]]
RObject tokenize_(List sourceSpec, List tokenizerSpec, int n_max) {
  Warnings warnings;

  SourcePtr source = Source::create(sourceSpec);
  TokenizerPtr tokenizer = Tokenizer::create(tokenizerSpec);
  tokenizer->tokenize(source->begin(), source->end());
  tokenizer->setWarnings(&warnings);

  std::vector<std::vector<std::string> > rows;

  for (Token t = tokenizer->nextToken(); t.type() != TOKEN_EOF; t = tokenizer->nextToken()) {
    if (n_max > 0 && t.row() >= (size_t) n_max)
      break;

    if (t.row() >= rows.size()) {
      rows.resize(t.row() + 1);
    }

    std::vector<std::string>& row = rows[t.row()];
    if (t.col() >= row.size())
      row.resize(t.col() + 1);

    row[t.col()] = t.asString();
  }

  RObject out = wrap(rows);
  return warnings.addAsAttribute(out);
}
开发者ID:krlmlr，项目名称:readr，代码行数:29，代码来源:parse.cpp

示例3: read_file_

// [[Rcpp::export]]
CharacterVector read_file_(List sourceSpec) {
  SourcePtr source = Source::create(sourceSpec);

  CharacterVector out(1);
  out[0] = Rf_mkCharLen(source->begin(), source->end() - source->begin());
  return out;
}
开发者ID:HuichunChien，项目名称:readr，代码行数:8，代码来源:read.cpp

示例4: tokenize_

// [[Rcpp::export]]
std::vector<std::vector<std::string> > tokenize_(List sourceSpec, List tokenizerSpec, int n) {
  SourcePtr source = Source::create(sourceSpec);
  TokenizerPtr tokenizer = Tokenizer::create(tokenizerSpec);
  tokenizer->tokenize(source->begin(), source->end());

  std::vector<std::vector<std::string> > rows;

  int i = 0;
  for (Token t = tokenizer->nextToken(); t.type() != TOKEN_EOF; t = tokenizer->nextToken()) {
    if (n > 0 && i > n)
      break;

    if (t.row() >= rows.size()) {
      rows.resize(t.row() + 1);
    }

    std::vector<std::string>& row = rows[t.row()];
    if (t.col() >= row.size())
      row.resize(t.col() + 1);
    row[t.col()] = t.asString();

    ++i;
  }

  return rows;
}
开发者ID:sjackman，项目名称:readr，代码行数:27，代码来源:parse.cpp

示例5: guess_header_

// [[Rcpp::export]]
RObject guess_header_(List sourceSpec, List tokenizerSpec, List locale_) {
  Warnings warnings;
  LocaleInfo locale(locale_);
  SourcePtr source = Source::create(sourceSpec);
  TokenizerPtr tokenizer = Tokenizer::create(tokenizerSpec);
  tokenizer->tokenize(source->begin(), source->end());
  tokenizer->setWarnings(&warnings);

  CollectorCharacter out(&locale.encoder_);
  out.setWarnings(&warnings);

  for (Token t = tokenizer->nextToken(); t.type() != TOKEN_EOF; t = tokenizer->nextToken()) {
    if (t.row() > (size_t) 0) // only read one row
      break;

    if (t.col() >= (size_t) out.size()) {
      out.resize(t.col() + 1);
    }

    if (t.type() == TOKEN_STRING) {
      out.setValue(t.col(), t);
    }
  }

  return out.vector();
}
开发者ID:krlmlr，项目名称:readr，代码行数:27，代码来源:parse.cpp

示例6: collectorsGuess

// [[Rcpp::export]]
std::vector<std::string> collectorsGuess(List sourceSpec, List tokenizerSpec, int n = 100) {
  Warnings warnings;
  SourcePtr source = Source::create(sourceSpec);
  TokenizerPtr tokenizer = Tokenizer::create(tokenizerSpec);
  tokenizer->tokenize(source->begin(), source->end());
  tokenizer->setWarnings(&warnings); // silence warnings

  std::vector<CollectorCharacter> collectors;
  for (Token t = tokenizer->nextToken(); t.type() != TOKEN_EOF; t = tokenizer->nextToken()) {
    if (t.row() >= (size_t) n)
      break;

    // Add new collectors, if needed
    if (t.col() >= collectors.size()) {
      int old_p = collectors.size();
      collectors.resize(t.col() + 1);
      for (size_t j = old_p; j < collectors.size(); ++j) {
        collectors[j].resize(n);
      }
    }

    collectors[t.col()].setValue(t.row(), t);
  }

  std::vector<std::string> out;
  for (size_t j = 0; j < collectors.size(); ++j) {
    CharacterVector col = as<CharacterVector>(collectors[j].vector());
    out.push_back(collectorGuess(col));
  }

  return out;
}
开发者ID:HuichunChien，项目名称:readr，代码行数:33，代码来源:read.cpp

示例7: read_file_

// [[Rcpp::export]]
CharacterVector read_file_(List sourceSpec, List locale_) {
  SourcePtr source = Source::create(sourceSpec);
  LocaleInfo locale(locale_);

  return CharacterVector::create(
    locale.encoder_.makeSEXP(source->begin(), source->end())
  );
}
开发者ID:Dulani，项目名称:readr，代码行数:9，代码来源:read.cpp

示例8: initLexer

static void initLexer(SourcePtr source, size_t offset, size_t length) {
    lexerSource = source.ptr();
    begin = source->data() + offset;
    end = begin + length;
    ptr = begin;
    maxPtr = begin;
    beginOffset = offset;
}
开发者ID:aep，项目名称:clay，代码行数:8，代码来源:lexer.cpp

示例9: desugarEvalStatement

llvm::ArrayRef<StatementPtr> desugarEvalStatement(EvalStatementPtr eval, EnvPtr env)
{
    if (eval->evaled)
        return eval->value;
    else {
        SourcePtr source = evalToSource(eval->location, eval->args, env);
        parseStatements(source, 0, unsigned(source->size()), eval->value);
        eval->evaled = true;
        return eval->value;
    }
}
开发者ID:lijinggangg，项目名称:clay，代码行数:11，代码来源:desugar.cpp

示例10: desugarEvalExpr

ExprListPtr desugarEvalExpr(EvalExprPtr eval, EnvPtr env, CompilerState* cst)
{
    if (eval->evaled)
        return eval->value;
    else {
        SourcePtr source = evalToSource(eval->location, new ExprList(eval->args), env, cst);
        eval->value = parseExprList(source, 0, unsigned(source->size()), cst);
        eval->evaled = true;
        return eval->value;
    }
}
开发者ID:galchinsky，项目名称:clay，代码行数:11，代码来源:desugar.cpp

示例11: desugarEvalTopLevel

llvm::ArrayRef<TopLevelItemPtr> desugarEvalTopLevel(EvalTopLevelPtr eval, EnvPtr env)
{
    if (eval->evaled)
        return eval->value;
    else {
        SourcePtr source = evalToSource(eval->location, eval->args, env);
        parseTopLevelItems(source, 0, unsigned(source->size()), eval->value, eval->module);
        eval->evaled = true;
        return eval->value;
    }
}
开发者ID:lijinggangg，项目名称:clay，代码行数:11，代码来源:desugar.cpp

示例12: dim_tokens_

// [[Rcpp::export]]
IntegerVector dim_tokens_(List sourceSpec, List tokenizerSpec) {
  SourcePtr source = Source::create(sourceSpec);
  TokenizerPtr tokenizer = Tokenizer::create(tokenizerSpec);
  tokenizer->tokenize(source->begin(), source->end());

  size_t rows = -1, cols = -1;

  for (Token t = tokenizer->nextToken(); t.type() != TOKEN_EOF; t = tokenizer->nextToken()) {
    rows = t.row();
    if (t.col() > cols)
      cols = t.col();
  }

  return IntegerVector::create(rows + 1, cols + 1);
}
开发者ID:sjackman，项目名称:readr，代码行数:16，代码来源:parse.cpp

示例13: eval

 static void eval(llvm::StringRef line) {
     SourcePtr source = new Source(line, 0);
     try {
         ReplItem x = parseInteractive(source, 0, source->size());
         if (x.isExprSet) {
             jitAndPrintExpr(x.expr);
         } else {
             loadImports(x.imports);
             jitTopLevel(x.toplevels);
             jitStatements(x.stmts);
         }
     }
     catch (CompilerError) {
         return;
     }        
 }
开发者ID:mario-campos，项目名称:clay，代码行数:16，代码来源:interactive.cpp

示例14: count_fields_

// [[Rcpp::export]]
std::vector<int> count_fields_(List sourceSpec, List tokenizerSpec) {
  SourcePtr source = Source::create(sourceSpec);
  TokenizerPtr tokenizer = Tokenizer::create(tokenizerSpec);
  tokenizer->tokenize(source->begin(), source->end());

  std::vector<int> fields;

  for (Token t = tokenizer->nextToken(); t.type() != TOKEN_EOF; t = tokenizer->nextToken()) {
    if (t.row() >= fields.size()) {
      fields.resize(t.row() + 1);
    }

    fields[t.row()] = t.col();
  }

  return fields;
}
开发者ID:sjackman，项目名称:readr，代码行数:18，代码来源:parse.cpp

示例15: read_lines_

// [[Rcpp::export]]
CharacterVector read_lines_(List sourceSpec, List locale_, int n_max = -1,
                            bool progress = true) {

  SourcePtr source = Source::create(sourceSpec);
  TokenizerLine tokenizer;
  tokenizer.tokenize(source->begin(), source->end());
  LocaleInfo locale(locale_);
  Progress progressBar;

  int n = (n_max < 0) ? 10000 : n_max;
  CharacterVector out(n);

  int i = 0;
  for (Token t = tokenizer.nextToken(); t.type() != TOKEN_EOF; t = tokenizer.nextToken()) {
    if (progress && (i + 1) % 25000 == 0)
      progressBar.show(tokenizer.progress());

    if (i >= n) {
      if (n_max < 0) {
        // Estimate rows in full dataset
        n = (i / tokenizer.progress().first) * 1.2;
        out = Rf_lengthgets(out, n);
      } else {
        break;
      }
    }

    if (t.type() == TOKEN_STRING)
      out[i] = t.asSEXP(&locale.encoder_);

    ++i;
  }

  if (i < n) {
    out = Rf_lengthgets(out, i);
  }

  if (progress)
    progressBar.show(tokenizer.progress());
  progressBar.stop();

  return out;
}
开发者ID:Dulani，项目名称:readr，代码行数:44，代码来源:read.cpp


注：本文中的SourcePtr类示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。