interpretSeeds.cxx File Reference

#include <charconv>
#include <iostream>
#include <vector>
#include <ranges>
#include <string_view>
#include "interpretSeeds.h"

Include dependency graph for interpretSeeds.cxx:

Go to the source code of this file.

Functions
void	getLuxury (std::vector< std::string >::iterator &token, short &luxLevel)
void	getOffset (std::vector< std::string >::iterator &token, uint32_t &offset)
bool	interpretSeeds (const std::string &buffer, std::string &stream, uint32_t &seed1, uint32_t &seed2, short &luxury, uint32_t &offset)
bool	interpretSeeds (const std::string &buffer, std::string &stream, std::vector< uint32_t > &seeds)

Function Documentation

getLuxury()

void getLuxury ( std::vector< std::string >::iterator & token, short & luxLevel )

inline

Definition at line 15 of file interpretSeeds.cxx.

                                                                     {
  if ((*token) == "LUXURY") {
     ++token;
     uint32_t parsedValue = 0;
     auto result = std::from_chars(token->data(), token->data() + token->size(), parsedValue);
     if (result.ec != std::errc()) {
       std::cerr << "Parsing error in function getLuxury." << std::endl;
     }
     luxLevel = parsedValue;
     ++token;
  }
}

getOffset()

void getOffset ( std::vector< std::string >::iterator & token, uint32_t & offset )

inline

Definition at line 30 of file interpretSeeds.cxx.

                                                                      {
  if ((*token) == "OFFSET") {
     ++token;
     uint32_t parsedValue = 0;
     auto result = std::from_chars(token->data(), token->data() + token->size(), parsedValue);
     if (result.ec != std::errc()) {
       std::cerr << "Parsing error in function getOffset." << std::endl;
     }
     offset = parsedValue;
     ++token;
  }
}

interpretSeeds() [1/2]

bool interpretSeeds	(	const std::string &	buffer,
		std::string &	stream,
		std::vector< uint32_t > &	seeds )

Definition at line 69 of file interpretSeeds.cxx.

{
  //split the space-separated string in 31 or 33 words: 
  std::vector<std::string> tokens;
  for (auto&& range : std::string_view{buffer} | std::views::split(' ')) if (!range.empty()) tokens.emplace_back(range.begin(), range.end());
  int nToks = static_cast<int>(tokens.size());
  bool status = (nToks == 31 || nToks == 33 || nToks == 771);
  if (status) {
    auto token = tokens.begin();
    stream = *token++;
    --nToks;
    if (nToks == 32) nToks=30; //ranlux (FIXME NEEDED?)
    for (int i=0; i<nToks; i++) {
      uint32_t value = 0;
      auto [ptr, ec] = std::from_chars(token->data(), token->data() + token->size(), value);
      if (ec != std::errc()) {
        status = false;
        break;
      }
      seeds.push_back(value);
      ++token;
    }
  }  
  return status;
}

interpretSeeds() [2/2]

bool interpretSeeds	(	const std::string &	buffer,
		std::string &	stream,
		uint32_t &	seed1,
		uint32_t &	seed2,
		short &	luxury,
		uint32_t &	offset )

Definition at line 43 of file interpretSeeds.cxx.

{
  //split the space-separated string in 3 or 5 or 7 words:  
  std::vector<std::string> tokens;
  for (auto&& range : std::string_view{buffer} | std::views::split(' ')) if (!range.empty()) tokens.emplace_back(range.begin(), range.end());
  int nToks = static_cast<int>(tokens.size());
  bool status = (nToks == 3 || nToks == 5 || nToks == 7);
  if (status) {
    auto token = tokens.begin();
    stream = *token++;
    //FIXME, try permutations by hand. With more than two we'd need a parser
    getOffset(token, offset);
    getLuxury(token, luxury);
    getOffset(token, offset);
    auto [ptr1, ec1] = std::from_chars(token->data(), token->data() + token->size(), seed1);
    ++token;
    auto [ptr2, ec2] = std::from_chars(token->data(), token->data() + token->size(), seed2);
    ++token;
    if (ec1 != std::errc() || ec2 != std::errc()) {
      status = false;
    }
  }
  return status;
}