mirror of https://github.com/bsnes-emu/bsnes.git
124 lines
3.8 KiB
C++
Executable File
124 lines
3.8 KiB
C++
Executable File
#ifndef NALL_CONFIG_HPP
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#define NALL_CONFIG_HPP
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#include <nall/file.hpp>
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#include <nall/string.hpp>
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#include <nall/vector.hpp>
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namespace nall {
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namespace configuration_traits {
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template<typename T> struct is_boolean { enum { value = false }; };
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template<> struct is_boolean<bool> { enum { value = true }; };
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template<typename T> struct is_signed { enum { value = false }; };
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template<> struct is_signed<signed> { enum { value = true }; };
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template<typename T> struct is_unsigned { enum { value = false }; };
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template<> struct is_unsigned<unsigned> { enum { value = true }; };
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template<typename T> struct is_double { enum { value = false }; };
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template<> struct is_double<double> { enum { value = true }; };
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template<typename T> struct is_string { enum { value = false }; };
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template<> struct is_string<string> { enum { value = true }; };
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}
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class configuration {
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public:
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enum type_t { boolean_t, signed_t, unsigned_t, double_t, string_t, unknown_t };
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struct item_t {
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uintptr_t data;
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string name;
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string desc;
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type_t type;
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string get() const {
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switch(type) {
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case boolean_t: return string() << *(bool*)data;
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case signed_t: return string() << *(signed*)data;
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case unsigned_t: return string() << *(unsigned*)data;
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case double_t: return string() << *(double*)data;
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case string_t: return string() << "\"" << *(string*)data << "\"";
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}
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return "???";
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}
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void set(string s) {
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switch(type) {
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case boolean_t: *(bool*)data = (s == "true"); break;
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case signed_t: *(signed*)data = integer(s); break;
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case unsigned_t: *(unsigned*)data = decimal(s); break;
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case double_t: *(double*)data = fp(s); break;
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case string_t: s.trim("\""); *(string*)data = s; break;
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}
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}
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};
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linear_vector<item_t> list;
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template<typename T>
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void attach(T &data, const char *name, const char *desc = "") {
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unsigned n = list.size();
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list[n].data = (uintptr_t)&data;
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list[n].name = name;
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list[n].desc = desc;
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if(configuration_traits::is_boolean<T>::value) list[n].type = boolean_t;
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else if(configuration_traits::is_signed<T>::value) list[n].type = signed_t;
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else if(configuration_traits::is_unsigned<T>::value) list[n].type = unsigned_t;
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else if(configuration_traits::is_double<T>::value) list[n].type = double_t;
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else if(configuration_traits::is_string<T>::value) list[n].type = string_t;
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else list[n].type = unknown_t;
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}
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virtual bool load(const char *filename) {
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string data;
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if(data.readfile(filename) == true) {
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data.replace("\r", "");
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lstring line;
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line.split("\n", data);
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for(unsigned i = 0; i < line.size(); i++) {
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if(auto position = qstrpos(line[i], "#")) line[i][position()] = 0;
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if(!qstrpos(line[i], " = ")) continue;
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lstring part;
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part.qsplit(" = ", line[i]);
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part[0].trim();
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part[1].trim();
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for(unsigned n = 0; n < list.size(); n++) {
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if(part[0] == list[n].name) {
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list[n].set(part[1]);
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break;
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}
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}
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}
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return true;
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} else {
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return false;
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}
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}
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virtual bool save(const char *filename) const {
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file fp;
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if(fp.open(filename, file::mode::write)) {
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for(unsigned i = 0; i < list.size(); i++) {
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string output;
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output << list[i].name << " = " << list[i].get();
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if(list[i].desc != "") output << " # " << list[i].desc;
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output << "\r\n";
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fp.print(output);
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}
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fp.close();
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return true;
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} else {
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return false;
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}
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}
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};
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}
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#endif
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