Attachment 10488 Details for Bug 23695 – YAML parser for PoC test file

YAML parser for PoC test file

parse.cpp (text/x-csrc), 1.39 KB, created by Len Lawrence on 2018-11-20 16:31:18 CET

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Filename:

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Creator: Len Lawrence

Created: 2018-11-20 16:31:18 CET

Size: 1.39 KB

patch

obsolete

>#include <fstream>
>#include <iostream>
>#include <vector>
>
>#include "yaml-cpp/eventhandler.h"
>#include "yaml-cpp/yaml.h"  // IWYU pragma: keep
>
>struct Params {
>  bool hasFile;
>  std::string fileName;
>};
>
>Params ParseArgs(int argc, char** argv) {
>  Params p;
>
>  std::vector<std::string> args(argv + 1, argv + argc);
>
>  return p;
>}
>
>class NullEventHandler : public YAML::EventHandler {
> public:
>  virtual void OnDocumentStart(const YAML::Mark&) {}
>  virtual void OnDocumentEnd() {}
>
>  virtual void OnNull(const YAML::Mark&, YAML::anchor_t) {}
>  virtual void OnAlias(const YAML::Mark&, YAML::anchor_t) {}
>  virtual void OnScalar(const YAML::Mark&, const std::string&, YAML::anchor_t,
>                        const std::string&) {}
>
>  virtual void OnSequenceStart(const YAML::Mark&, const std::string&,
>                               YAML::anchor_t) {}
>  virtual void OnSequenceEnd() {}
>
>  virtual void OnMapStart(const YAML::Mark&, const std::string&,
>                          YAML::anchor_t) {}
>  virtual void OnMapEnd() {}
>};
>
>void parse(std::istream& input) {
>  try {
>    YAML::Node doc = YAML::Load(input);
>    std::cout << doc << "\n";
>  } catch (const YAML::Exception& e) {
>    std::cerr << e.what() << "\n";
>  }
>}
>
>int main(int argc, char** argv) {
>  Params p = ParseArgs(argc, argv);
>
>  if (argc > 1) {
>    std::ifstream fin;
>    fin.open(argv[1]);
>    parse(fin);
>  } else {
>    parse(std::cin);
>  }
>
>  return 0;
>}

#include <fstream>
#include <iostream>
#include <vector>

#include "yaml-cpp/eventhandler.h"
#include "yaml-cpp/yaml.h"  // IWYU pragma: keep

struct Params {
  bool hasFile;
  std::string fileName;
};

Params ParseArgs(int argc, char** argv) {
  Params p;

  std::vector<std::string> args(argv + 1, argv + argc);

  return p;
}

class NullEventHandler : public YAML::EventHandler {
 public:
  virtual void OnDocumentStart(const YAML::Mark&) {}
  virtual void OnDocumentEnd() {}

  virtual void OnNull(const YAML::Mark&, YAML::anchor_t) {}
  virtual void OnAlias(const YAML::Mark&, YAML::anchor_t) {}
  virtual void OnScalar(const YAML::Mark&, const std::string&, YAML::anchor_t,
                        const std::string&) {}

  virtual void OnSequenceStart(const YAML::Mark&, const std::string&,
                               YAML::anchor_t) {}
  virtual void OnSequenceEnd() {}

  virtual void OnMapStart(const YAML::Mark&, const std::string&,
                          YAML::anchor_t) {}
  virtual void OnMapEnd() {}
};

void parse(std::istream& input) {
  try {
    YAML::Node doc = YAML::Load(input);
    std::cout << doc << "\n";
  } catch (const YAML::Exception& e) {
    std::cerr << e.what() << "\n";
  }
}

int main(int argc, char** argv) {
  Params p = ParseArgs(argc, argv);

  if (argc > 1) {
    std::ifstream fin;
    fin.open(argv[1]);
    parse(fin);
  } else {
    parse(std::cin);
  }

  return 0;
}

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Attachments on bug 23695: 10488 | 10489 | 10491