89 lines
2.7 KiB
C++
89 lines
2.7 KiB
C++
#include <iostream>
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#include <unistd.h>
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#include "simdjson.h"
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SIMDJSON_PUSH_DISABLE_ALL_WARNINGS
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#ifndef __cpp_exceptions
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#define CXXOPTS_NO_EXCEPTIONS
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#endif
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#include "cxxopts.hpp"
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SIMDJSON_POP_DISABLE_WARNINGS
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#if CXXOPTS__VERSION_MAJOR < 3
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int main(int argc, char *argv[]) {
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#else
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int main(int argc, const char *argv[]) {
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#endif
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#ifdef __cpp_exceptions
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try {
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#endif
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std::string progName = "json2json";
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std::string progUsage = "json2json version ";
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progUsage += STRINGIFY(SIMDJSON_VERSION);
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progUsage += " (";
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progUsage += simdjson::active_implementation->name();
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progUsage += ")\n";
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progUsage += "Reads json in, out the result of the parsing.\n";
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progUsage += argv[0];
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progUsage += " <jsonfile>\n";
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cxxopts::Options options(progName, progUsage);
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options.add_options()
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("z,ondemand", "Use On Demand front-end.", cxxopts::value<bool>()->default_value("false"))
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("d,rawdump", "Dumps the raw content of the tape.", cxxopts::value<bool>()->default_value("false"))
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("f,file", "File name.", cxxopts::value<std::string>())
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("h,help", "Print usage.")
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;
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// the first argument without an option name will be parsed into file
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options.parse_positional({"file"});
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auto result = options.parse(argc, argv);
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if(result.count("help")) {
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std::cerr << options.help() << std::endl;
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return EXIT_SUCCESS;
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}
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bool ondemand = result["ondemand"].as<bool>();
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bool rawdump = result["rawdump"].as<bool>();
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if(!result.count("file")) {
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std::cerr << "No filename specified." << std::endl;
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std::cerr << options.help() << std::endl;
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return EXIT_FAILURE;
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}
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const char *filename = result["file"].as<std::string>().c_str();
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if(ondemand) {
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simdjson::ondemand::parser parser;
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simdjson::padded_string docdata;
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auto error = simdjson::padded_string::load(filename).get(docdata);
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if(error != simdjson::SUCCESS) { std::cout << error << std::endl; return EXIT_FAILURE; }
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simdjson::ondemand::document doc;
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error = parser.iterate(docdata).get(doc);
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if(error != simdjson::SUCCESS) { std::cout << error << std::endl; return EXIT_FAILURE; }
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std::cout << doc;
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return EXIT_SUCCESS;
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}
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simdjson::dom::parser parser;
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simdjson::dom::element doc;
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auto error = parser.load(filename).get(doc); // do the parsing, return false on error
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if (error) {
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std::cerr << " Parsing failed. Error is '" << error << "'." << std::endl;
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return EXIT_FAILURE;
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}
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if(rawdump) {
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doc.dump_raw_tape(std::cout);
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} else {
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std::cout << doc;
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}
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return EXIT_SUCCESS;
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#ifdef __cpp_exceptions
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} catch (const cxxopts::OptionException& e) {
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std::cout << "error parsing options: " << e.what() << std::endl;
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return EXIT_FAILURE;
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}
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#endif
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}
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