virtualx-engine/core/io/config_file.cpp

231 lines
6.4 KiB
C++

/*************************************************************************/
/* config_file.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "config_file.h"
#include "os/keyboard.h"
#include "os/file_access.h"
#include "variant_parser.h"
PoolStringArray ConfigFile::_get_sections() const {
List<String> s;
get_sections(&s);
PoolStringArray arr;
arr.resize(s.size());
int idx=0;
for(const List<String>::Element *E=s.front();E;E=E->next()) {
arr.set(idx++,E->get());
}
return arr;
}
PoolStringArray ConfigFile::_get_section_keys(const String& p_section) const{
List<String> s;
get_section_keys(p_section,&s);
PoolStringArray arr;
arr.resize(s.size());
int idx=0;
for(const List<String>::Element *E=s.front();E;E=E->next()) {
arr.set(idx++,E->get());
}
return arr;
}
void ConfigFile::set_value(const String& p_section, const String& p_key, const Variant& p_value){
if (p_value.get_type()==Variant::NIL) {
//erase
if (!values.has(p_section))
return; // ?
values[p_section].erase(p_key);
if (values[p_section].empty()) {
values.erase(p_section);
}
} else {
if (!values.has(p_section)) {
values[p_section]=Map<String, Variant>();
}
values[p_section][p_key]=p_value;
}
}
Variant ConfigFile::get_value(const String& p_section, const String& p_key, Variant p_default) const {
ERR_FAIL_COND_V(!values.has(p_section),p_default);
ERR_FAIL_COND_V(!values[p_section].has(p_key),p_default);
return values[p_section][p_key];
}
bool ConfigFile::has_section(const String& p_section) const {
return values.has(p_section);
}
bool ConfigFile::has_section_key(const String& p_section,const String& p_key) const {
if (!values.has(p_section))
return false;
return values[p_section].has(p_key);
}
void ConfigFile::get_sections(List<String> *r_sections) const{
for(const Map< String, Map<String, Variant> >::Element *E=values.front();E;E=E->next()) {
r_sections->push_back(E->key());
}
}
void ConfigFile::get_section_keys(const String& p_section,List<String> *r_keys) const{
ERR_FAIL_COND(!values.has(p_section));
for(const Map<String, Variant> ::Element *E=values[p_section].front();E;E=E->next()) {
r_keys->push_back(E->key());
}
}
void ConfigFile::erase_section(const String& p_section) {
values.erase(p_section);
}
Error ConfigFile::save(const String& p_path){
Error err;
FileAccess *file = FileAccess::open(p_path,FileAccess::WRITE,&err);
if (err) {
if (file)
memdelete(file);
return err;
}
for(Map< String, Map<String, Variant> >::Element *E=values.front();E;E=E->next()) {
if (E!=values.front())
file->store_string("\n");
file->store_string("["+E->key()+"]\n\n");
for(Map<String, Variant>::Element *F=E->get().front();F;F=F->next()) {
String vstr;
VariantWriter::write_to_string(F->get(),vstr);
file->store_string(F->key()+"="+vstr+"\n");
}
}
memdelete(file);
return OK;
}
Error ConfigFile::load(const String& p_path) {
Error err;
FileAccess *f= FileAccess::open(p_path,FileAccess::READ,&err);
if (!f)
return ERR_CANT_OPEN;
VariantParser::StreamFile stream;
stream.f=f;
String assign;
Variant value;
VariantParser::Tag next_tag;
int lines=0;
String error_text;
String section;
while(true) {
assign=Variant();
next_tag.fields.clear();
next_tag.name=String();
err = VariantParser::parse_tag_assign_eof(&stream,lines,error_text,next_tag,assign,value,NULL,true);
if (err==ERR_FILE_EOF) {
memdelete(f);
return OK;
}
else if (err!=OK) {
ERR_PRINTS("ConfgFile::load - "+p_path+":"+itos(lines)+" error: "+error_text);
memdelete(f);
return err;
}
if (assign!=String()) {
set_value(section,assign,value);
} else if (next_tag.name!=String()) {
section=next_tag.name;
}
}
memdelete(f);
return OK;
}
void ConfigFile::_bind_methods(){
ClassDB::bind_method(_MD("set_value","section","key","value"),&ConfigFile::set_value);
ClassDB::bind_method(_MD("get_value:Variant","section","key","default"),&ConfigFile::get_value,DEFVAL(Variant()));
ClassDB::bind_method(_MD("has_section","section"),&ConfigFile::has_section);
ClassDB::bind_method(_MD("has_section_key","section","key"),&ConfigFile::has_section_key);
ClassDB::bind_method(_MD("get_sections"),&ConfigFile::_get_sections);
ClassDB::bind_method(_MD("get_section_keys","section"),&ConfigFile::_get_section_keys);
ClassDB::bind_method(_MD("erase_section","section"),&ConfigFile::erase_section);
ClassDB::bind_method(_MD("load:Error","path"),&ConfigFile::load);
ClassDB::bind_method(_MD("save:Error","path"),&ConfigFile::save);
}
ConfigFile::ConfigFile()
{
}