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// -*- c++ -*-
// Distributed under the BSD 2-Clause License.
// See accompanying file LICENSE for details.
#include "pointerlist.h"
#include <cstring>
PointerList::PointerList(int argc, const char* const argv[])
{
for(int i = 0; i < argc; ++i)
{
push_back(argv[i]);
}
}
std::pair<int, const char* const*> PointerList::get()
{
argptrs.clear();
for(const auto& arg : *this)
{
argptrs.push_back(arg.data());
}
argptrs.push_back(nullptr);
return {argptrs.size() - 1, // size not counting the nullptr at the end
argptrs.data()};
}
EnvMap::EnvMap(const char* const env[])
{
if(env == nullptr)
{
return;
}
auto ptr = env;
while(*ptr)
{
insert(std::string_view(*ptr));
++ptr;
}
}
EnvMap::EnvMap(const char* env)
{
if(env == nullptr)
{
return;
}
auto ptr = env;
while(*ptr)
{
insert(ptr);
ptr += strlen(ptr) + 1;
}
}
std::string EnvMap::operator[](const std::string& key) const
{
try
{
return data.at(key);
}
catch(...)
{
return {};
}
}
void EnvMap::clear()
{
data.clear();
}
void EnvMap::insert(std::string_view key_value)
{
auto equals_sign = key_value.find('=');
if(equals_sign == std::string::npos)
{
insert({key_value, ""});
return;
}
std::string key{key_value.substr(0, equals_sign)};
std::string value{key_value.substr(equals_sign + 1)}; // skip '='
insert({key, value});
}
void EnvMap::insert(const std::pair<std::string_view, std::string_view>& item)
{
data[std::string(item.first)] = item.second;
}
bool EnvMap::contains(std::string_view key) const
{
return data.contains(std::string{key});
}
std::size_t EnvMap::size() const
{
return data.size();
}
std::string EnvMap::stringify() const
{
std::string str;
for(const auto& [key, value] : data)
{
str += key + "=" + value + '\0';
}
str += '\0';
return str;
}
std::pair<int, const char* const*> EnvMap::get()
{
pointerlist.clear();
for(const auto& [key, value] : data)
{
pointerlist.push_back(key + "=" + value + '\0');
}
return pointerlist.get();
}
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