145 lines
3.2 KiB
C++
145 lines
3.2 KiB
C++
#include "slang_preset_ini.hpp"
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#include "slang_helpers.hpp"
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#include <fstream>
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#include <cstring>
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#include <charconv>
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IniFile::IniFile()
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{
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}
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IniFile::~IniFile()
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{
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}
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static std::string trim_comments(std::string str)
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{
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for (auto &comment : { "//", "#" })
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{
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auto location = str.rfind(comment);
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if (location != std::string::npos)
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str = str.substr(0, location);
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}
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return trim(str);
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}
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static std::string trim_quotes(std::string str)
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{
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if (str.length() > 1 && str.front() == '\"' && str.back() == '\"')
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return str.substr(1, str.length() - 2);
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return str;
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}
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bool IniFile::load_file(std::string filename)
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{
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std::ifstream file;
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file.open(filename.c_str(), std::ios_base::binary);
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if (!file.is_open())
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{
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printf("No file %s\n", filename.c_str());
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return false;
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}
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std::string line;
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while (1)
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{
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if (file.eof())
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break;
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std::getline(file, line);
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line = trim(line);
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if (line.find("#reference") == 0)
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{
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std::string reference_path(trim_comments(line.substr(11)));
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reference_path = trim_quotes(reference_path);
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canonicalize(reference_path, filename);
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printf("Loading file %s\n", reference_path.c_str());
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if (!load_file(reference_path))
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{
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printf("Fail %s\n", reference_path.c_str());
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return false;
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}
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}
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line = trim_comments(line);
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if (line.length() == 0)
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continue;
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auto equals = line.find('=');
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if (equals != std::string::npos)
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{
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auto left_side = trim_quotes(trim(line.substr(0, equals)));
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auto right_side = trim_quotes(trim(line.substr(equals + 1)));
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keys.insert_or_assign(left_side, std::make_pair(right_side, filename));
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}
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}
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return true;
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}
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std::string IniFile::get_string(std::string key, std::string default_value = "")
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{
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auto it = keys.find(key);
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if (it == keys.end())
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return default_value;
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return it->second.first;
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}
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int IniFile::get_int(std::string key, int default_value = 0)
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{
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auto it = keys.find(key);
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if (it == keys.end())
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return default_value;
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return std::stoi(it->second.first);
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}
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float IniFile::get_float(std::string key, float default_value = 0.0f)
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{
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auto it = keys.find(key);
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if (it == keys.end())
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return default_value;
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return std::stof(it->second.first);
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}
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std::string IniFile::get_source(std::string key)
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{
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auto it = keys.find(key);
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if (it == keys.end())
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return "";
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return it->second.second;
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}
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bool IniFile::get_bool(std::string key, bool default_value = false)
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{
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auto it = keys.find(key);
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if (it == keys.end())
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return default_value;
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std::string lower = it->second.first;
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for (auto &c : lower)
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c = tolower(c);
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const char *true_strings[] = { "true", "1", "yes", "on", "y"};
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for (auto &s : true_strings)
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if (lower == s)
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return true;
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return false;
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}
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bool IniFile::exists(std::string key)
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{
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auto it = keys.find(key);
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if (it == keys.end())
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return false;
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return true;
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} |