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GH-1047 parse world files and integrate MCEdit with world page

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This commit is contained in:
Petr Mrázek 2015-09-06 23:35:58 +02:00
parent 40b233448c
commit 38693e1d6c
58 changed files with 6079 additions and 161 deletions
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5
CMakeLists.txt
View File

@ -118,6 +118,11 @@ include_directories(${PACK200_INCLUDE_DIR})
add_subdirectory(depends/rainbow)
include_directories(${RAINBOW_INCLUDE_DIR})
# Add color thingy
add_subdirectory(depends/libnbtplusplus)
include_directories(${LIBNBTPP_INCLUDE_DIR})
include_directories(${LIBNBTPP_BIN_INCLUDE_DIR})
######## MultiMC Libs ########
# Add the util library.

104
application/pages/WorldListPage.cpp
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@ -19,7 +19,12 @@
#include "dialogs/ModEditDialogCommon.h"
#include <QEvent>
#include <QKeyEvent>
#include <QClipboard>
#include <QMessageBox>
#include <QTreeView>
#include "MultiMC.h"
WorldListPage::WorldListPage(BaseInstance *inst, std::shared_ptr<WorldList> worlds, QString id,
QString iconName, QString displayName, QString helpPage,
@ -28,8 +33,20 @@ WorldListPage::WorldListPage(BaseInstance *inst, std::shared_ptr<WorldList> worl
{
ui->setupUi(this);
ui->tabWidget->tabBar()->hide();
ui->worldTreeView->setModel(m_worlds.get());
QSortFilterProxyModel * proxy = new QSortFilterProxyModel(this);
proxy->setSourceModel(m_worlds.get());
ui->worldTreeView->setSortingEnabled(true);
ui->worldTreeView->setModel(proxy);
ui->worldTreeView->installEventFilter(this);
auto head = ui->worldTreeView->header();
head->setSectionResizeMode(0, QHeaderView::Stretch);
head->setSectionResizeMode(1, QHeaderView::ResizeToContents);
connect(ui->worldTreeView->selectionModel(),
SIGNAL(currentChanged(const QModelIndex &, const QModelIndex &)), this,
SLOT(worldChanged(const QModelIndex &, const QModelIndex &)));
worldChanged(QModelIndex(), QModelIndex());
}
void WorldListPage::opened()
@ -79,12 +96,12 @@ bool WorldListPage::eventFilter(QObject *obj, QEvent *ev)
return worldListFilter(keyEvent);
return QWidget::eventFilter(obj, ev);
}
void WorldListPage::on_rmWorldBtn_clicked()
{
int first, last;
auto list = ui->worldTreeView->selectionModel()->selectedRows();
auto proxiedIndex = getSelectedWorld();
if (!lastfirst(list, first, last))
if(!proxiedIndex.isValid())
return;
auto result = QMessageBox::question(this,
@ -98,7 +115,7 @@ void WorldListPage::on_rmWorldBtn_clicked()
return;
}
m_worlds->stopWatching();
m_worlds->deleteWorlds(first, last);
m_worlds->deleteWorld(proxiedIndex.row());
m_worlds->startWatching();
}
@ -106,3 +123,80 @@ void WorldListPage::on_viewFolderBtn_clicked()
{
openDirInDefaultProgram(m_worlds->dir().absolutePath(), true);
}
QModelIndex WorldListPage::getSelectedWorld()
{
auto index = ui->worldTreeView->selectionModel()->currentIndex();
auto proxy = (QSortFilterProxyModel *) ui->worldTreeView->model();
return proxy->mapToSource(index);
}
void WorldListPage::on_copySeedBtn_clicked()
{
QModelIndex index = getSelectedWorld();
if (!index.isValid())
{
return;
}
int64_t seed = m_worlds->data(index, WorldList::SeedRole).toLongLong();
MMC->clipboard()->setText(QString::number(seed));
}
void WorldListPage::on_mcEditBtn_clicked()
{
const QString mceditPath = MMC->settings()->get("MCEditPath").toString();
QModelIndex index = getSelectedWorld();
if (!index.isValid())
{
return;
}
auto fullPath = m_worlds->data(index, WorldList::FolderRole).toString();
#ifdef Q_OS_OSX
QProcess *process = new QProcess();
connect(process, SIGNAL(finished(int, QProcess::ExitStatus)), process, SLOT(deleteLater()));
process->setProgram(mceditPath);
process->setArguments(QStringList() << fullPath);
process->start();
#else
QDir mceditDir(mceditPath);
QString program;
#ifdef Q_OS_LINUX
if (mceditDir.exists("mcedit.py"))
{
program = mceditDir.absoluteFilePath("mcedit.py");
}
else if (mceditDir.exists("mcedit.sh"))
{
program = mceditDir.absoluteFilePath("mcedit.sh");
}
#elif defined(Q_OS_WIN32)
if (mceditDir.exists("mcedit.exe"))
{
program = mceditDir.absoluteFilePath("mcedit.exe");
}
else if (mceditDir.exists("mcedit2.exe"))
{
program = mceditDir.absoluteFilePath("mcedit2.exe");
}
#endif
if(program.size())
{
QProcess::startDetached(program, QStringList() << fullPath, mceditPath);
}
#endif
}
void WorldListPage::worldChanged(const QModelIndex &current, const QModelIndex &previous)
{
QModelIndex index = getSelectedWorld();
bool enable = index.isValid();
ui->copySeedBtn->setEnabled(enable);
ui->mcEditBtn->setEnabled(enable);
ui->rmWorldBtn->setEnabled(enable);
}

6
application/pages/WorldListPage.h
View File

@ -66,6 +66,9 @@ protected:
protected:
BaseInstance *m_inst;
private:
QModelIndex getSelectedWorld();
private:
Ui::WorldListPage *ui;
std::shared_ptr<WorldList> m_worlds;
@ -75,6 +78,9 @@ private:
QString m_helpName;
private slots:
void on_copySeedBtn_clicked();
void on_mcEditBtn_clicked();
void on_rmWorldBtn_clicked();
void on_viewFolderBtn_clicked();
void worldChanged(const QModelIndex &current, const QModelIndex &previous);
};

209
application/pages/WorldListPage.ui
View File

@ -1,94 +1,125 @@
<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
<class>WorldListPage</class>
<widget class="QWidget" name="WorldListPage">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>723</width>
<height>532</height>
</rect>
</property>
<property name="windowTitle">
<string>Mods</string>
</property>
<layout class="QVBoxLayout" name="verticalLayout">
<property name="leftMargin">
<number>0</number>
</property>
<property name="topMargin">
<number>0</number>
</property>
<property name="rightMargin">
<number>0</number>
</property>
<property name="bottomMargin">
<number>0</number>
</property>
<item>
<widget class="QTabWidget" name="tabWidget">
<property name="currentIndex">
<number>0</number>
</property>
<widget class="QWidget" name="tab">
<attribute name="title">
<string>Tab 1</string>
</attribute>
<layout class="QGridLayout" name="gridLayout">
<item row="0" column="0">
<widget class="QTreeView" name="worldTreeView">
<property name="sizePolicy">
<sizepolicy hsizetype="Expanding" vsizetype="Expanding">
<horstretch>0</horstretch>
<verstretch>0</verstretch>
</sizepolicy>
</property>
<property name="acceptDrops">
<bool>true</bool>
</property>
<property name="dragDropMode">
<enum>QAbstractItemView::DropOnly</enum>
</property>
</widget>
</item>
<item row="0" column="1">
<layout class="QVBoxLayout" name="verticalLayout_2">
<item>
<widget class="QPushButton" name="rmWorldBtn">
<property name="text">
<string>&amp;Remove</string>
</property>
</widget>
</item>
<item>
<spacer name="verticalSpacer">
<property name="orientation">
<enum>Qt::Vertical</enum>
</property>
<property name="sizeHint" stdset="0">
<size>
<width>20</width>
<height>40</height>
</size>
</property>
</spacer>
</item>
<item>
<widget class="QPushButton" name="viewFolderBtn">
<property name="text">
<string>&amp;View Folder</string>
</property>
</widget>
</item>
</layout>
</item>
</layout>
</widget>
</widget>
</item>
<class>WorldListPage</class>
<widget class="QWidget" name="WorldListPage">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>723</width>
<height>532</height>
</rect>
</property>
<property name="windowTitle">
<string>Mods</string>
</property>
<layout class="QVBoxLayout" name="verticalLayout">
<property name="leftMargin">
<number>0</number>
</property>
<property name="topMargin">
<number>0</number>
</property>
<property name="rightMargin">
<number>0</number>
</property>
<property name="bottomMargin">
<number>0</number>
</property>
<item>
<widget class="QTabWidget" name="tabWidget">
<property name="currentIndex">
<number>0</number>
</property>
<widget class="QWidget" name="tab">
<attribute name="title">
<string>Tab 1</string>
</attribute>
<layout class="QGridLayout" name="gridLayout">
<item row="0" column="0">
<widget class="QTreeView" name="worldTreeView">
<property name="sizePolicy">
<sizepolicy hsizetype="Expanding" vsizetype="Expanding">
<horstretch>0</horstretch>
<verstretch>0</verstretch>
</sizepolicy>
</property>
<property name="acceptDrops">
<bool>true</bool>
</property>
<property name="dragDropMode">
<enum>QAbstractItemView::DropOnly</enum>
</property>
<property name="sortingEnabled">
<bool>true</bool>
</property>
<property name="allColumnsShowFocus">
<bool>true</bool>
</property>
<attribute name="headerStretchLastSection">
<bool>false</bool>
</attribute>
</widget>
</item>
<item row="0" column="1">
<layout class="QVBoxLayout" name="verticalLayout_2">
<item>
<widget class="QPushButton" name="mcEditBtn">
<property name="text">
<string>MCEdit</string>
</property>
</widget>
</item>
<item>
<widget class="QPushButton" name="copySeedBtn">
<property name="text">
<string>Copy Seed</string>
</property>
</widget>
</item>
<item>
<widget class="QPushButton" name="rmWorldBtn">
<property name="text">
<string>&amp;Remove</string>
</property>
</widget>
</item>
<item>
<spacer name="verticalSpacer">
<property name="orientation">
<enum>Qt::Vertical</enum>
</property>
<property name="sizeHint" stdset="0">
<size>
<width>20</width>
<height>40</height>
</size>
</property>
</spacer>
</item>
<item>
<widget class="QPushButton" name="viewFolderBtn">
<property name="text">
<string>&amp;View Folder</string>
</property>
</widget>
</item>
</layout>
</item>
</layout>
</widget>
</widget>
<resources/>
<connections/>
</item>
</layout>
</widget>
<tabstops>
<tabstop>tabWidget</tabstop>
<tabstop>worldTreeView</tabstop>
<tabstop>mcEditBtn</tabstop>
<tabstop>copySeedBtn</tabstop>
<tabstop>rmWorldBtn</tabstop>
<tabstop>viewFolderBtn</tabstop>
</tabstops>
<resources/>
<connections/>
</ui>

50
depends/libnbtplusplus/CMakeLists.txt Normal file
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@ -0,0 +1,50 @@
cmake_minimum_required(VERSION 3.2)
project(libnbt++ VERSION 2.1)
add_definitions(-std=c++11)
include_directories(include)
set(nbt_sources
src/endian_str.cpp
src/tag.cpp
src/tag_array.cpp
src/tag_compound.cpp
src/tag_list.cpp
src/tag_string.cpp
src/value.cpp
src/value_initializer.cpp
src/io/stream_reader.cpp
src/io/stream_writer.cpp
src/text/json_formatter.cpp
include/value_initializer.h
include/tag.h
include/io
include/io/stream_writer.h
include/io/stream_reader.h
include/crtp_tag.h
include/tag_string.h
include/value.h
include/tag_primitive.h
include/tag_list.h
include/tagfwd.h
include/make_unique.h
include/primitive_detail.h
include/endian_str.h
include/tag_compound.h
include/nbt_tags.h
include/nbt_visitor.h
include/text
include/text/json_formatter.h
include/tag_array.h
)
set(LIBNBTPP_INCLUDE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/include" PARENT_SCOPE)
set(LIBNBTPP_BIN_INCLUDE_DIR "${CMAKE_CURRENT_BINARY_DIR}" PARENT_SCOPE)
add_library(nbt++ SHARED ${nbt_sources})
generate_export_header(nbt++)
include_directories(${CMAKE_CURRENT_BINARY_DIR})

674
depends/libnbtplusplus/COPYING Normal file
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@ -0,0 +1,674 @@
GNU GENERAL PUBLIC LICENSE
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Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
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GNU LESSER GENERAL PUBLIC LICENSE
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# libnbt++2 Product Requirements Document
### Purpose
Provide a C++ interface for working with NBT data, particularly originating
from Minecraft.
### Scope
External Minecraft utilities that read or manipulate parts of savefiles,
such as:
- (Graphical) NBT editors
- Inventory editors
- Tools for reading or changing world metadata
- Map editors and visualizers
### Definitions, Acronyms and Abbreviations
- **libnbt++1:** The predecessor of libnbt++2.
- **Minecraft:** A sandbox voxel world game written in Java, developed by
Mojang.
- **Mojang's implementation:** The NBT library written in Java that Mojang
uses in Minecraft.
- **NBT:** Named Binary Tag. A binary serialization format used by Minecraft.
- **Tag:** A data unit in NBT. Can be a number, string, array, list or
compound.
### Product Functions
- /RF10/ Reading and writing NBT data files/streams with or without
compression.
- /RF20/ Representing NBT data in memory and allowing programs to read or
manipulate it in all the ways that Mojang's implementation and libnbt++1
provide.
- /RF30/ A shorter syntax than in libnbt++1 and preferrably also Mojang's
implementation.
- /RF35/ Typesafe operations (no possibly unwanted implicit casts), in case
of incompatible types exceptions should be thrown.
- /RF40/ The need for insecure operations and manual memory management should
be minimized; references and `std::unique_ptr` should be preferred before
raw pointers.
- /RF55/ A wrapper for tags that provides syntactic sugar is preferred
before raw `std::unique_ptr` values.
- /RF50/ Move semantics are preferred before copy semantics.
- /RF55/ Copying tags should be possible, but only in an explicit manner.
- /RF60/ Checked conversions are preferred, unchecked conversions may be
possible but discouraged.
### Product Performance
- /RP10/ All operations on (not too large) NBT data should not be slower
than their counterparts in Mojang's implementation.
- /RP20/ The library must be able to handle all possible NBT data that
Mojang's implementation can create and handle.
- /RP30/ Often used operations on large Lists, Compounds and Arrays must
be of at most O(log n) time complexity if reasonable. Other operations
should be at most O(n).
### Quality Requirements
- Functionality: good
- Reliability: normal
- Usability: very good
- Efficiency: good
- Changeability: normal
- Transferability: normal

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# libnbt++ 2 (WIP)
libnbt++ is a free C++ library for Minecraft's file format Named Binary Tag
(NBT). It can read and write compressed and uncompressed NBT files and
provides a code interface for working with NBT data.
----------
libnbt++2 is a remake of the old libnbt++ library with the goal of making it
more easily usable and fixing some problems. The old libnbt++ especially
suffered from a very convoluted syntax and boilerplate code needed to work
with NBT data.
Forked from https://github.com/ljfa-ag/libnbtplusplus at commit 3b7d44aa0b84f9c208d906f4d10517e36220ee80

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/*
* libnbt++ - A library for the Minecraft Named Binary Tag format.
* Copyright (C) 2013, 2015 ljfa-ag
*
* This file is part of libnbt++.
*
* libnbt++ is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* libnbt++ is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with libnbt++. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef CRTP_TAG_H_INCLUDED
#define CRTP_TAG_H_INCLUDED
#include "tag.h"
#include "nbt_visitor.h"
#include "make_unique.h"
#include "nbt++_export.h"
namespace nbt
{
namespace detail
{
template<class Sub>
class NBT___EXPORT crtp_tag : public tag
{
public:
//Pure virtual destructor to make the class abstract
virtual ~crtp_tag() noexcept = 0;
tag_type get_type() const noexcept override final { return Sub::type; };
std::unique_ptr<tag> clone() const& override final { return make_unique<Sub>(sub_this()); }
std::unique_ptr<tag> move_clone() && override final { return make_unique<Sub>(std::move(sub_this())); }
tag& assign(tag&& rhs) override final { return sub_this() = dynamic_cast<Sub&&>(rhs); }
void accept(nbt_visitor& visitor) override final { visitor.visit(sub_this()); }
void accept(const_nbt_visitor& visitor) const override final { visitor.visit(sub_this()); }
private:
bool equals(const tag& rhs) const override final { return sub_this() == static_cast<const Sub&>(rhs); }
Sub& sub_this() { return static_cast<Sub&>(*this); }
const Sub& sub_this() const { return static_cast<const Sub&>(*this); }
};
template<class Sub>
crtp_tag<Sub>::~crtp_tag() noexcept {}
}
}
#endif // CRTP_TAG_H_INCLUDED

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/*
* libnbt++ - A library for the Minecraft Named Binary Tag format.
* Copyright (C) 2013, 2015 ljfa-ag
*
* This file is part of libnbt++.
*
* libnbt++ is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* libnbt++ is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with libnbt++. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef ENDIAN_STR_H_INCLUDED
#define ENDIAN_STR_H_INCLUDED
#include <cstdint>
#include <iosfwd>
#include "nbt++_export.h"
/**
* @brief Reading and writing numbers from and to streams
* in binary format with different byte orders.
*/
namespace endian
{
enum endian { little, big };
///Reads number from stream in specified endian
template<class T>
NBT___EXPORT void read(std::istream& is, T& x, endian e);
///Reads number from stream in little endian
NBT___EXPORT void read_little(std::istream& is, uint8_t& x);
NBT___EXPORT void read_little(std::istream& is, uint16_t& x);
NBT___EXPORT void read_little(std::istream& is, uint32_t& x);
NBT___EXPORT void read_little(std::istream& is, uint64_t& x);
NBT___EXPORT void read_little(std::istream& is, int8_t& x);
NBT___EXPORT void read_little(std::istream& is, int16_t& x);
NBT___EXPORT void read_little(std::istream& is, int32_t& x);
NBT___EXPORT void read_little(std::istream& is, int64_t& x);
NBT___EXPORT void read_little(std::istream& is, float& x);
NBT___EXPORT void read_little(std::istream& is, double& x);
///Reads number from stream in big endian
NBT___EXPORT void read_big(std::istream& is, uint8_t& x);
NBT___EXPORT void read_big(std::istream& is, uint16_t& x);
NBT___EXPORT void read_big(std::istream& is, uint32_t& x);
NBT___EXPORT void read_big(std::istream& is, uint64_t& x);
NBT___EXPORT void read_big(std::istream& is, int8_t& x);
NBT___EXPORT void read_big(std::istream& is, int16_t& x);
NBT___EXPORT void read_big(std::istream& is, int32_t& x);
NBT___EXPORT void read_big(std::istream& is, int64_t& x);
NBT___EXPORT void read_big(std::istream& is, float& x);
NBT___EXPORT void read_big(std::istream& is, double& x);
///Writes number to stream in specified endian
template<class T>
NBT___EXPORT void write(std::ostream& os, T x, endian e);
///Writes number to stream in little endian
NBT___EXPORT void write_little(std::ostream& os, uint8_t x);
NBT___EXPORT void write_little(std::ostream& os, uint16_t x);
NBT___EXPORT void write_little(std::ostream& os, uint32_t x);
NBT___EXPORT void write_little(std::ostream& os, uint64_t x);
NBT___EXPORT void write_little(std::ostream& os, int8_t x);
NBT___EXPORT void write_little(std::ostream& os, int16_t x);
NBT___EXPORT void write_little(std::ostream& os, int32_t x);
NBT___EXPORT void write_little(std::ostream& os, int64_t x);
NBT___EXPORT void write_little(std::ostream& os, float x);
NBT___EXPORT void write_little(std::ostream& os, double x);
///Writes number to stream in big endian
NBT___EXPORT void write_big(std::ostream& os, uint8_t x);
NBT___EXPORT void write_big(std::ostream& os, uint16_t x);
NBT___EXPORT void write_big(std::ostream& os, uint32_t x);
NBT___EXPORT void write_big(std::ostream& os, uint64_t x);
NBT___EXPORT void write_big(std::ostream& os, int8_t x);
NBT___EXPORT void write_big(std::ostream& os, int16_t x);
NBT___EXPORT void write_big(std::ostream& os, int32_t x);
NBT___EXPORT void write_big(std::ostream& os, int64_t x);
NBT___EXPORT void write_big(std::ostream& os, float x);
NBT___EXPORT void write_big(std::ostream& os, double x);
template<class T>
NBT___EXPORT void read(std::istream& is, T& x, endian e)
{
if(e == little)
read_little(is, x);
else
read_big(is, x);
}
template<class T>
NBT___EXPORT void write(std::ostream& os, T x, endian e)
{
if(e == little)
write_little(os, x);
else
write_big(os, x);
}
}
#endif // ENDIAN_STR_H_INCLUDED

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/*
* libnbt++ - A library for the Minecraft Named Binary Tag format.
* Copyright (C) 2013, 2015 ljfa-ag
*
* This file is part of libnbt++.
*
* libnbt++ is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* libnbt++ is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with libnbt++. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef STREAM_READER_H_INCLUDED
#define STREAM_READER_H_INCLUDED
#include "endian_str.h"
#include "tag.h"
#include "tag_compound.h"
#include <iosfwd>
#include <memory>
#include <stdexcept>
#include <utility>
#include "nbt++_export.h"
namespace nbt
{
namespace io
{
///Exception that gets thrown when reading is not successful
class NBT___EXPORT input_error : public std::runtime_error
{
using std::runtime_error::runtime_error;
};
/**
* @brief Reads a named tag from the stream, making sure that it is a compound
* @param is the stream to read from
* @param e the byte order of the source data. The Java edition
* of Minecraft uses Big Endian, the Pocket edition uses Little Endian
* @throw input_error on failure, or if the tag in the stream is not a compound
*/
NBT___EXPORT std::pair<std::string, std::unique_ptr<tag_compound>> read_compound(std::istream& is, endian::endian e = endian::big);
/**
* @brief Reads a named tag from the stream
* @param is the stream to read from
* @param e the byte order of the source data. The Java edition
* of Minecraft uses Big Endian, the Pocket edition uses Little Endian
* @throw input_error on failure
*/
NBT___EXPORT std::pair<std::string, std::unique_ptr<tag>> read_tag(std::istream& is, endian::endian e = endian::big);
/**
* @brief Helper class for reading NBT tags from input streams
*
* Can be reused to read multiple tags
*/
class NBT___EXPORT stream_reader
{
public:
/**
* @param is the stream to read from
* @param e the byte order of the source data. The Java edition
* of Minecraft uses Big Endian, the Pocket edition uses Little Endian
*/
explicit stream_reader(std::istream& is, endian::endian e = endian::big) noexcept;
///Returns the stream
std::istream& get_istr() const;
///Returns the byte order
endian::endian get_endian() const;
/**
* @brief Reads a named tag from the stream, making sure that it is a compound
* @throw input_error on failure, or if the tag in the stream is not a compound
*/
std::pair<std::string, std::unique_ptr<tag_compound>> read_compound();
/**
* @brief Reads a named tag from the stream
* @throw input_error on failure
*/
std::pair<std::string, std::unique_ptr<tag>> read_tag();
/**
* @brief Reads a tag of the given type without name from the stream
* @throw input_error on failure
*/
std::unique_ptr<tag> read_payload(tag_type type);
/**
* @brief Reads a tag type from the stream
* @param allow_end whether to consider tag_type::End valid
* @throw input_error on failure
*/
tag_type read_type(bool allow_end = false);
/**
* @brief Reads a binary number from the stream
*
* On failure, will set the failbit on the stream.
*/
template<class T>
void read_num(T& x);
/**
* @brief Reads an NBT string from the stream
*
* An NBT string consists of two bytes indicating the length, followed by
* the characters encoded in modified UTF-8.
* @throw input_error on failure
*/
std::string read_string();
private:
std::istream& is;
const endian::endian endian;
};
template<class T>
void stream_reader::read_num(T& x)
{
endian::read(is, x, endian);
}
}
}
#endif // STREAM_READER_H_INCLUDED

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/*
* libnbt++ - A library for the Minecraft Named Binary Tag format.
* Copyright (C) 2013, 2015 ljfa-ag
*
* This file is part of libnbt++.
*
* libnbt++ is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* libnbt++ is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with libnbt++. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef STREAM_WRITER_H_INCLUDED
#define STREAM_WRITER_H_INCLUDED
#include "tag.h"
#include "endian_str.h"
#include <iosfwd>
#include "nbt++_export.h"
namespace nbt
{
namespace io
{
/* Not sure if that is even needed
///Exception that gets thrown when writing is not successful
class output_error : public std::runtime_error
{
using std::runtime_error::runtime_error;
};*/
/**
* @brief Writes a named tag into the stream, including the tag type
* @param key the name of the tag
* @param t the tag
* @param os the stream to write to
* @param e the byte order of the written data. The Java edition
* of Minecraft uses Big Endian, the Pocket edition uses Little Endian
*/
NBT___EXPORT void write_tag(const std::string& key, const tag& t, std::ostream& os, endian::endian e = endian::big);
/**
* @brief Helper class for writing NBT tags to output streams
*
* Can be reused to write multiple tags
*/
class NBT___EXPORT stream_writer
{
public:
///Maximum length of an NBT string (16 bit unsigned)
static constexpr size_t max_string_len = UINT16_MAX;
///Maximum length of an NBT list or array (32 bit signed)
static constexpr uint32_t max_array_len = INT32_MAX;
/**
* @param os the stream to write to
* @param e the byte order of the written data. The Java edition
* of Minecraft uses Big Endian, the Pocket edition uses Little Endian
*/
explicit stream_writer(std::ostream& os, endian::endian e = endian::big) noexcept:
os(os), endian(e)
{}
///Returns the stream
std::ostream& get_ostr() const { return os; }
///Returns the byte order
endian::endian get_endian() const { return endian; }
/**
* @brief Writes a named tag into the stream, including the tag type
*/
void write_tag(const std::string& key, const tag& t);
/**
* @brief Writes the given tag's payload into the stream
*/
void write_payload(const tag& t) { t.write_payload(*this); }
/**
* @brief Writes a tag type to the stream
*/
void write_type(tag_type tt) { write_num(static_cast<int8_t>(tt)); }
/**
* @brief Writes a binary number to the stream
*/
template<class T>
void write_num(T x);
/**
* @brief Writes an NBT string to the stream
*
* An NBT string consists of two bytes indicating the length, followed by
* the characters encoded in modified UTF-8.
* @throw std::length_error if the string is too long for NBT
*/
void write_string(const std::string& str);
private:
std::ostream& os;
const endian::endian endian;
};
template<class T>
void stream_writer::write_num(T x)
{
endian::write(os, x, endian);
}
}
}
#endif // STREAM_WRITER_H_INCLUDED

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/*
* libnbt++ - A library for the Minecraft Named Binary Tag format.
* Copyright (C) 2013, 2015 ljfa-ag
*
* This file is part of libnbt++.
*
* libnbt++ is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* libnbt++ is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with libnbt++. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef MAKE_UNIQUE_H_INCLUDED
#define MAKE_UNIQUE_H_INCLUDED
#include <memory>
namespace nbt
{
///Creates a new object of type T and returns a std::unique_ptr to it
template<class T, class... Args>
std::unique_ptr<T> make_unique(Args&&... args)
{
return std::unique_ptr<T>(new T(std::forward<Args>(args)...));
}
}
#endif // MAKE_UNIQUE_H_INCLUDED

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/*
* libnbt++ - A library for the Minecraft Named Binary Tag format.
* Copyright (C) 2013, 2015 ljfa-ag
*
* This file is part of libnbt++.
*
* libnbt++ is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* libnbt++ is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with libnbt++. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef NBT_TAGS_H_INCLUDED
#define NBT_TAGS_H_INCLUDED
#include "tag_primitive.h"
#include "tag_string.h"
#include "tag_array.h"
#include "tag_list.h"
#include "tag_compound.h"
#endif // NBT_TAGS_H_INCLUDED

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/*
* libnbt++ - A library for the Minecraft Named Binary Tag format.
* Copyright (C) 2013, 2015 ljfa-ag
*
* This file is part of libnbt++.
*
* libnbt++ is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* libnbt++ is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with libnbt++. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef NBT_VISITOR_H_INCLUDED
#define NBT_VISITOR_H_INCLUDED
#include "tagfwd.h"
#include "nbt++_export.h"
namespace nbt
{
/**
* @brief Base class for visitors of tags
*
* Implementing the Visitor pattern
*/
class NBT___EXPORT nbt_visitor
{
public:
virtual ~nbt_visitor() noexcept = 0; //Abstract class
virtual void visit(tag_byte&) {}
virtual void visit(tag_short&) {}
virtual void visit(tag_int&) {}
virtual void visit(tag_long&) {}
virtual void visit(tag_float&) {}
virtual void visit(tag_double&) {}
virtual void visit(tag_byte_array&) {}
virtual void visit(tag_string&) {}
virtual void visit(tag_list&) {}
virtual void visit(tag_compound&) {}
virtual void visit(tag_int_array&) {}
};
/**
* @brief Base class for visitors of constant tags
*
* Implementing the Visitor pattern
*/
class NBT___EXPORT const_nbt_visitor
{
public:
virtual ~const_nbt_visitor() noexcept = 0; //Abstract class
virtual void visit(const tag_byte&) {}
virtual void visit(const tag_short&) {}
virtual void visit(const tag_int&) {}
virtual void visit(const tag_long&) {}
virtual void visit(const tag_float&) {}
virtual void visit(const tag_double&) {}
virtual void visit(const tag_byte_array&) {}
virtual void visit(const tag_string&) {}
virtual void visit(const tag_list&) {}
virtual void visit(const tag_compound&) {}
virtual void visit(const tag_int_array&) {}
};
inline nbt_visitor::~nbt_visitor() noexcept {}
inline const_nbt_visitor::~const_nbt_visitor() noexcept {}
}
#endif // NBT_VISITOR_H_INCLUDED

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/*
* libnbt++ - A library for the Minecraft Named Binary Tag format.
* Copyright (C) 2013, 2015 ljfa-ag
*
* This file is part of libnbt++.
*
* libnbt++ is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* libnbt++ is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with libnbt++. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef PRIMITIVE_DETAIL_H_INCLUDED
#define PRIMITIVE_DETAIL_H_INCLUDED
#include <type_traits>
///@cond
namespace nbt
{
namespace detail
{
///Meta-struct that holds the tag_type value for a specific primitive type
template<class T> struct get_primitive_type
{ static_assert(sizeof(T) != sizeof(T), "Invalid type paramter for tag_primitive, can only use types that NBT uses"); };
template<> struct get_primitive_type<int8_t> : public std::integral_constant<tag_type, tag_type::Byte> {};
template<> struct get_primitive_type<int16_t> : public std::integral_constant<tag_type, tag_type::Short> {};
template<> struct get_primitive_type<int32_t> : public std::integral_constant<tag_type, tag_type::Int> {};
template<> struct get_primitive_type<int64_t> : public std::integral_constant<tag_type, tag_type::Long> {};
template<> struct get_primitive_type<float> : public std::integral_constant<tag_type, tag_type::Float> {};
template<> struct get_primitive_type<double> : public std::integral_constant<tag_type, tag_type::Double> {};
}
}
///@endcond
#endif // PRIMITIVE_DETAIL_H_INCLUDED

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/*
* libnbt++ - A library for the Minecraft Named Binary Tag format.
* Copyright (C) 2013, 2015 ljfa-ag
*
* This file is part of libnbt++.
*
* libnbt++ is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* libnbt++ is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with libnbt++. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef TAG_H_INCLUDED
#define TAG_H_INCLUDED
#include <cstdint>
#include <iosfwd>
#include <memory>
#include "nbt++_export.h"
namespace nbt
{
///Tag type values used in the binary format
enum class tag_type : int8_t
{
End = 0,
Byte = 1,
Short = 2,
Int = 3,
Long = 4,
Float = 5,
Double = 6,
Byte_Array = 7,
String = 8,
List = 9,
Compound = 10,
Int_Array = 11,
Null = -1 ///< Used to denote empty @ref value s
};
/**
* @brief Returns whether the given number falls within the range of valid tag types
* @param allow_end whether to consider tag_type::End (0) valid
*/
NBT___EXPORT bool is_valid_type(int type, bool allow_end = false);
//Forward declarations
class nbt_visitor;
class const_nbt_visitor;
namespace io
{
class stream_reader;
class stream_writer;
}
///Base class for all NBT tag classes
class NBT___EXPORT tag
{
public:
//Virtual destructor
virtual ~tag() noexcept {}
///Returns the type of the tag
virtual tag_type get_type() const noexcept = 0;
//Polymorphic clone methods
virtual std::unique_ptr<tag> clone() const& = 0;
virtual std::unique_ptr<tag> move_clone() && = 0;
std::unique_ptr<tag> clone() &&;
/**
* @brief Returns a reference to the tag as an instance of T
* @throw std::bad_cast if the tag is not of type T
*/
template<class T>
T& as();
template<class T>
const T& as() const;
/**
* @brief Move-assigns the given tag if the class is the same
* @throw std::bad_cast if @c rhs is not the same type as @c *this
*/
virtual tag& assign(tag&& rhs) = 0;
/**
* @brief Calls the appropriate overload of @c visit() on the visitor with
* @c *this as argument
*
* Implementing the Visitor pattern
*/
virtual void accept(nbt_visitor& visitor) = 0;
virtual void accept(const_nbt_visitor& visitor) const = 0;
/**
* @brief Reads the tag's payload from the stream
* @throw io::stream_reader::input_error on failure
*/
virtual void read_payload(io::stream_reader& reader) = 0;
/**
* @brief Writes the tag's payload into the stream
*/
virtual void write_payload(io::stream_writer& writer) const = 0;
/**
* @brief Default-constructs a new tag of the given type
* @throw std::invalid_argument if the type is not valid (e.g. End or Null)
*/
static std::unique_ptr<tag> create(tag_type type);
friend bool operator==(const tag& lhs, const tag& rhs);
friend bool operator!=(const tag& lhs, const tag& rhs);
private:
/**
* @brief Checks for equality to a tag of the same type
* @param rhs an instance of the same class as @c *this
*/
virtual bool equals(const tag& rhs) const = 0;
};
///Output operator for tag types
NBT___EXPORT std::ostream& operator<<(std::ostream& os, tag_type tt);
/**
* @brief Output operator for tags
*
* Uses @ref text::json_formatter
* @relates tag
*/
NBT___EXPORT std::ostream& operator<<(std::ostream& os, const tag& t);
template<class T>
T& tag::as()
{
static_assert(std::is_base_of<tag, T>::value, "T must be a subclass of tag");
return dynamic_cast<T&>(*this);
}
template<class T>
const T& tag::as() const
{
static_assert(std::is_base_of<tag, T>::value, "T must be a subclass of tag");
return dynamic_cast<const T&>(*this);
}
}
#endif // TAG_H_INCLUDED

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/*
* libnbt++ - A library for the Minecraft Named Binary Tag format.
* Copyright (C) 2013, 2015 ljfa-ag
*
* This file is part of libnbt++.
*
* libnbt++ is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* libnbt++ is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with libnbt++. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef TAG_ARRAY_H_INCLUDED
#define TAG_ARRAY_H_INCLUDED
#include "crtp_tag.h"
#include <type_traits>
#include <vector>
#include "nbt++_export.h"
namespace nbt
{
///@cond
namespace detail
{
///Meta-struct that holds the tag_type value for a specific array type
template<class T> struct get_array_type
{ static_assert(sizeof(T) != sizeof(T), "Invalid type paramter for tag_primitive, can only use byte or int"); };
template<> struct get_array_type<int8_t> : public std::integral_constant<tag_type, tag_type::Byte_Array> {};
template<> struct get_array_type<int32_t> : public std::integral_constant<tag_type, tag_type::Int_Array> {};
}
///@cond
/**
* @brief Tag that contains an array of byte or int values
*
* Common class for tag_byte_array and tag_int_array.
*/
template<class T>
class NBT___EXPORT tag_array final : public detail::crtp_tag<tag_array<T>>
{
public:
//Iterator types
typedef typename std::vector<T>::iterator iterator;
typedef typename std::vector<T>::const_iterator const_iterator;
///The type of the contained values
typedef T value_type;
///The type of the tag
static constexpr tag_type type = detail::get_array_type<T>::value;
///Constructs an empty array
tag_array() {}
///Constructs an array with the given values
tag_array(std::initializer_list<T> init): data(init) {}
tag_array(std::vector<T>&& vec) noexcept: data(std::move(vec)) {}
///Returns a reference to the vector that contains the values
std::vector<T>& get() { return data; }
const std::vector<T>& get() const { return data; }
/**
* @brief Accesses a value by index with bounds checking
* @throw std::out_of_range if the index is out of range
*/
T& at(size_t i);
T at(size_t i) const;
/**
* @brief Accesses a value by index
*
* No bounds checking is performed.
*/
T& operator[](size_t i) { return data[i]; }
T operator[](size_t i) const { return data[i]; }
///Appends a value at the end of the array
void push_back(T val) { data.push_back(val); }
///Removes the last element from the array
void pop_back() { data.pop_back(); }
///Returns the number of values in the array
size_t size() const { return data.size(); }
///Erases all values from the array.
void clear() { data.clear(); }
//Iterators
iterator begin() { return data.begin(); }
iterator end() { return data.end(); }
const_iterator begin() const { return data.begin(); }
const_iterator end() const { return data.end(); }
const_iterator cbegin() const { return data.cbegin(); }
const_iterator cend() const { return data.cend(); }
void read_payload(io::stream_reader& reader) override;
/**
* @inheritdoc
* @throw std::length_error if the array is too large for NBT
*/
void write_payload(io::stream_writer& writer) const override;
private:
std::vector<T> data;
};
template<class T> bool operator==(const tag_array<T>& lhs, const tag_array<T>& rhs)
{ return lhs.get() == rhs.get(); }
template<class T> bool operator!=(const tag_array<T>& lhs, const tag_array<T>& rhs)
{ return !(lhs == rhs); }
//Typedefs that should be used instead of the template tag_array.
typedef tag_array<int8_t> tag_byte_array;
typedef tag_array<int32_t> tag_int_array;
}
#endif // TAG_ARRAY_H_INCLUDED

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/*
* libnbt++ - A library for the Minecraft Named Binary Tag format.
* Copyright (C) 2013, 2015 ljfa-ag
*
* This file is part of libnbt++.
*
* libnbt++ is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* libnbt++ is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with libnbt++. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef TAG_COMPOUND_H_INCLUDED
#define TAG_COMPOUND_H_INCLUDED
#include "crtp_tag.h"
#include "value_initializer.h"
#include <map>
#include <string>
#include "nbt++_export.h"
namespace nbt
{
///Tag that contains multiple unordered named tags of arbitrary types
class NBT___EXPORT tag_compound final : public detail::crtp_tag<tag_compound>
{
typedef std::map<std::string, value> map_t_;
public:
//Iterator types
typedef map_t_::iterator iterator;
typedef map_t_::const_iterator const_iterator;
///The type of the tag
static constexpr tag_type type = tag_type::Compound;
///Constructs an empty compound
tag_compound() {}
///Constructs a compound with the given key-value pairs
tag_compound(std::initializer_list<std::pair<std::string, value_initializer>> init);
/**
* @brief Accesses a tag by key with bounds checking
*
* Returns a value to the tag with the specified key, or throws an
* exception if it does not exist.
* @throw std::out_of_range if given key does not exist
*/
value& at(const std::string& key);
const value& at(const std::string& key) const;
/**
* @brief Accesses a tag by key
*
* Returns a value to the tag with the specified key. If it does not exist,
* creates a new uninitialized entry under the key.
*/
value& operator[](const std::string& key) { return tags[key]; }
/**
* @brief Inserts or assigns a tag
*
* If the given key already exists, assigns the tag to it.
* Otherwise, it is inserted under the given key.
* @return a pair of the iterator to the value and a bool indicating
* whether the key did not exist
*/
std::pair<iterator, bool> put(const std::string& key, value_initializer&& val);
/**
* @brief Inserts a tag if the key does not exist
* @return a pair of the iterator to the value with the key and a bool
* indicating whether the value was actually inserted
*/
std::pair<iterator, bool> insert(const std::string& key, value_initializer&& val);
/**
* @brief Constructs and assigns or inserts a tag into the compound
*
* Constructs a new tag of type @c T with the given args and inserts
* or assigns it to the given key.
* @note Unlike std::map::emplace, this will overwrite existing values
* @return a pair of the iterator to the value and a bool indicating
* whether the key did not exist
*/
template<class T, class... Args>
std::pair<iterator, bool> emplace(const std::string& key, Args&&... args);
/**
* @brief Erases a tag from the compound
* @return true if a tag was erased
*/
bool erase(const std::string& key);
///Returns true if the given key exists in the compound
bool has_key(const std::string& key) const;
///Returns true if the given key exists and the tag has the given type
bool has_key(const std::string& key, tag_type type) const;
///Returns the number of tags in the compound
size_t size() const { return tags.size(); }
///Erases all tags from the compound
void clear() { tags.clear(); }
//Iterators
iterator begin() { return tags.begin(); }
iterator end() { return tags.end(); }
const_iterator begin() const { return tags.begin(); }
const_iterator end() const { return tags.end(); }
const_iterator cbegin() const { return tags.cbegin(); }
const_iterator cend() const { return tags.cend(); }
void read_payload(io::stream_reader& reader) override;
void write_payload(io::stream_writer& writer) const override;
friend bool operator==(const tag_compound& lhs, const tag_compound& rhs)
{ return lhs.tags == rhs.tags; }
friend bool operator!=(const tag_compound& lhs, const tag_compound& rhs)
{ return !(lhs == rhs); }
private:
map_t_ tags;
};
template<class T, class... Args>
std::pair<tag_compound::iterator, bool> tag_compound::emplace(const std::string& key, Args&&... args)
{
return put(key, value(make_unique<T>(std::forward<Args>(args)...)));
}
}
#endif // TAG_COMPOUND_H_INCLUDED

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/*
* libnbt++ - A library for the Minecraft Named Binary Tag format.
* Copyright (C) 2013, 2015 ljfa-ag
*
* This file is part of libnbt++.
*
* libnbt++ is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* libnbt++ is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with libnbt++. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef TAG_LIST_H_INCLUDED
#define TAG_LIST_H_INCLUDED
#include "crtp_tag.h"
#include "tagfwd.h"
#include "value_initializer.h"
#include <stdexcept>
#include <vector>
#include "nbt++_export.h"
namespace nbt
{
/**
* @brief Tag that contains multiple unnamed tags of the same type
*
* All the tags contained in the list have the same type, which can be queried
* with el_type(). The types of the values contained in the list should not
* be changed to mismatch the element type.
*
* If the list is empty, the type can be undetermined, in which case el_type()
* will return tag_type::Null. The type will then be set when the first tag
* is added to the list.
*/
class NBT___EXPORT tag_list final : public detail::crtp_tag<tag_list>
{
public:
//Iterator types
typedef std::vector<value>::iterator iterator;
typedef std::vector<value>::const_iterator const_iterator;
///The type of the tag
static constexpr tag_type type = tag_type::List;
/**
* @brief Constructs a list of type T with the given values
*
* Example: @code tag_list::of<tag_byte>({3, 4, 5}) @endcode
* @param init list of values from which the elements are constructed
*/
template<class T>
static tag_list of(std::initializer_list<T> init);
/**
* @brief Constructs an empty list
*
* The content type is determined when the first tag is added.
*/
tag_list(): tag_list(tag_type::Null) {}
///Constructs an empty list with the given content type
explicit tag_list(tag_type type): el_type_(type) {}
///Constructs a list with the given contents
tag_list(std::initializer_list<int8_t> init);
tag_list(std::initializer_list<int16_t> init);
tag_list(std::initializer_list<int32_t> init);
tag_list(std::initializer_list<int64_t> init);
tag_list(std::initializer_list<float> init);
tag_list(std::initializer_list<double> init);
tag_list(std::initializer_list<std::string> init);
tag_list(std::initializer_list<tag_byte_array> init);
tag_list(std::initializer_list<tag_list> init);
tag_list(std::initializer_list<tag_compound> init);
tag_list(std::initializer_list<tag_int_array> init);
/**
* @brief Constructs a list with the given contents
* @throw std::invalid_argument if the tags are not all of the same type
*/
tag_list(std::initializer_list<value> init);
/**
* @brief Accesses a tag by index with bounds checking
*
* Returns a value to the tag at the specified index, or throws an
* exception if it is out of range.
* @throw std::out_of_range if the index is out of range
*/
value& at(size_t i);
const value& at(size_t i) const;
/**
* @brief Accesses a tag by index
*
* Returns a value to the tag at the specified index. No bounds checking
* is performed.
*/
value& operator[](size_t i) { return tags[i]; }
const value& operator[](size_t i) const { return tags[i]; }
/**
* @brief Assigns a value at the given index
* @throw std::invalid_argument if the type of the value does not match the list's
* content type
* @throw std::out_of_range if the index is out of range
*/
void set(size_t i, value&& val);
/**
* @brief Appends the tag to the end of the list
* @throw std::invalid_argument if the type of the tag does not match the list's
* content type
*/
void push_back(value_initializer&& val);
/**
* @brief Constructs and appends a tag to the end of the list
* @throw std::invalid_argument if the type of the tag does not match the list's
* content type
*/
template<class T, class... Args>
void emplace_back(Args&&... args);
///Removes the last element of the list
void pop_back() { tags.pop_back(); }
///Returns the content type of the list, or tag_type::Null if undetermined
tag_type el_type() const { return el_type_; }
///Returns the number of tags in the list
size_t size() const { return tags.size(); }
///Erases all tags from the list. Preserves the content type.
void clear() { tags.clear(); }
/**
* @brief Erases all tags from the list and changes the content type.
* @param type the new content type. Can be tag_type::Null to leave it undetermined.
*/
void reset(tag_type type = tag_type::Null);
//Iterators
iterator begin() { return tags.begin(); }
iterator end() { return tags.end(); }
const_iterator begin() const { return tags.begin(); }
const_iterator end() const { return tags.end(); }
const_iterator cbegin() const { return tags.cbegin(); }
const_iterator cend() const { return tags.cend(); }
/**
* @inheritdoc
* In case of a list of tag_end, the content type will be undetermined.
*/
void read_payload(io::stream_reader& reader) override;
/**
* @inheritdoc
* In case of a list of undetermined content type, the written type will be tag_end.
* @throw std::length_error if the list is too long for NBT
*/
void write_payload(io::stream_writer& writer) const override;
/**
* @brief Equality comparison for lists
*
* Lists are considered equal if their content types and the contained tags
* are equal.
*/
NBT___EXPORT friend bool operator==(const tag_list& lhs, const tag_list& rhs);
NBT___EXPORT friend bool operator!=(const tag_list& lhs, const tag_list& rhs);
private:
std::vector<value> tags;
tag_type el_type_;
/**
* Internally used initialization function that initializes the list with
* tags of type T, with the constructor arguments of each T given by il.
* @param il list of values that are, one by one, given to a constructor of T
*/
template<class T, class Arg>
void init(std::initializer_list<Arg> il);
};
template<class T>
tag_list tag_list::of(std::initializer_list<T> il)
{
tag_list result;
result.init<T, T>(il);
return result;
}
template<class T, class... Args>
void tag_list::emplace_back(Args&&... args)
{
if(el_type_ == tag_type::Null) //set content type if undetermined
el_type_ = T::type;
else if(el_type_ != T::type)
throw std::invalid_argument("The tag type does not match the list's content type");
tags.emplace_back(make_unique<T>(std::forward<Args>(args)...));
}
template<class T, class Arg>
void tag_list::init(std::initializer_list<Arg> init)
{
el_type_ = T::type;
tags.reserve(init.size());
for(const Arg& arg: init)
tags.emplace_back(make_unique<T>(arg));
}
}
#endif // TAG_LIST_H_INCLUDED

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/*
* libnbt++ - A library for the Minecraft Named Binary Tag format.
* Copyright (C) 2013, 2015 ljfa-ag
*
* This file is part of libnbt++.
*
* libnbt++ is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* libnbt++ is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with libnbt++. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef TAG_PRIMITIVE_H_INCLUDED
#define TAG_PRIMITIVE_H_INCLUDED
#include "crtp_tag.h"
#include "primitive_detail.h"
#include "io/stream_reader.h"
#include "io/stream_writer.h"
#include <istream>
#include <sstream>
#include "nbt++_export.h"
namespace nbt
{
/**
* @brief Tag that contains an integral or floating-point value
*
* Common class for tag_byte, tag_short, tag_int, tag_long, tag_float and tag_double.
*/
template<class T>
class tag_primitive final : public detail::crtp_tag<tag_primitive<T>>
{
public:
///The type of the value
typedef T value_type;
///The type of the tag
static constexpr tag_type type = detail::get_primitive_type<T>::value;
//Constructor
constexpr tag_primitive(T val = 0) noexcept: value(val) {}
//Getters
operator T&() { return value; }
constexpr operator T() const { return value; }
constexpr T get() const { return value; }
//Setters
tag_primitive& operator=(T val) { value = val; return *this; }
void set(T val) { value = val; }
void read_payload(io::stream_reader& reader) override;
void write_payload(io::stream_writer& writer) const override;
private:
T value;
};
template<class T> bool operator==(const tag_primitive<T>& lhs, const tag_primitive<T>& rhs)
{ return lhs.get() == rhs.get(); }
template<class T> bool operator!=(const tag_primitive<T>& lhs, const tag_primitive<T>& rhs)
{ return !(lhs == rhs); }
//Typedefs that should be used instead of the template tag_primitive.
typedef tag_primitive<int8_t> tag_byte;
typedef tag_primitive<int16_t> tag_short;
typedef tag_primitive<int32_t> tag_int;
typedef tag_primitive<int64_t> tag_long;
typedef tag_primitive<float> tag_float;
typedef tag_primitive<double> tag_double;
template<class T>
void tag_primitive<T>::read_payload(io::stream_reader& reader)
{
reader.read_num(value);
if(!reader.get_istr())
{
std::ostringstream str;
str << "Error reading tag_" << type;
throw io::input_error(str.str());
}
}
template<class T>
void tag_primitive<T>::write_payload(io::stream_writer& writer) const
{
writer.write_num(value);
}
}
#endif // TAG_PRIMITIVE_H_INCLUDED

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/*
* libnbt++ - A library for the Minecraft Named Binary Tag format.
* Copyright (C) 2013, 2015 ljfa-ag
*
* This file is part of libnbt++.
*
* libnbt++ is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* libnbt++ is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with libnbt++. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef TAG_STRING_H_INCLUDED
#define TAG_STRING_H_INCLUDED
#include "crtp_tag.h"
#include <string>
#include "nbt++_export.h"
namespace nbt
{
///Tag that contains a UTF-8 string
class NBT___EXPORT tag_string final : public detail::crtp_tag<tag_string>
{
public:
///The type of the tag
static constexpr tag_type type = tag_type::String;
//Constructors
tag_string() {}
tag_string(const std::string& str): value(str) {}
tag_string(std::string&& str) noexcept: value(std::move(str)) {}
tag_string(const char* str): value(str) {}
//Getters
operator std::string&() { return value; }
operator const std::string&() const { return value; }
const std::string& get() const { return value; }
//Setters
tag_string& operator=(const std::string& str) { value = str; return *this; }
tag_string& operator=(std::string&& str) { value = std::move(str); return *this; }
tag_string& operator=(const char* str) { value = str; return *this; }
void set(const std::string& str) { value = str; }
void set(std::string&& str) { value = std::move(str); }
void read_payload(io::stream_reader& reader) override;
/**
* @inheritdoc
* @throw std::length_error if the string is too long for NBT
*/
void write_payload(io::stream_writer& writer) const override;
private:
std::string value;
};
inline bool operator==(const tag_string& lhs, const tag_string& rhs)
{ return lhs.get() == rhs.get(); }
inline bool operator!=(const tag_string& lhs, const tag_string& rhs)
{ return !(lhs == rhs); }
}
#endif // TAG_STRING_H_INCLUDED

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/*
* libnbt++ - A library for the Minecraft Named Binary Tag format.
* Copyright (C) 2013, 2015 ljfa-ag
*
* This file is part of libnbt++.
*
* libnbt++ is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* libnbt++ is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with libnbt++. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file
* @brief Provides forward declarations for all tag classes
*/
#ifndef TAGFWD_H_INCLUDED
#define TAGFWD_H_INCLUDED
#include <cstdint>
namespace nbt
{
class tag;
template<class T> class tag_primitive;
typedef tag_primitive<int8_t> tag_byte;
typedef tag_primitive<int16_t> tag_short;
typedef tag_primitive<int32_t> tag_int;
typedef tag_primitive<int64_t> tag_long;
typedef tag_primitive<float> tag_float;
typedef tag_primitive<double> tag_double;
class tag_string;
template<class T> class tag_array;
typedef tag_array<int8_t> tag_byte_array;
typedef tag_array<int32_t> tag_int_array;
class tag_list;
class tag_compound;
}
#endif // TAGFWD_H_INCLUDED

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/*
* libnbt++ - A library for the Minecraft Named Binary Tag format.
* Copyright (C) 2013, 2015 ljfa-ag
*
* This file is part of libnbt++.
*
* libnbt++ is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* libnbt++ is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with libnbt++. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef JSON_FORMATTER_H_INCLUDED
#define JSON_FORMATTER_H_INCLUDED
#include "tagfwd.h"
#include <ostream>
#include "nbt++_export.h"
namespace nbt
{
namespace text
{
/**
* @brief Prints tags in a JSON-like syntax into a stream
*
* @todo Make it configurable and able to produce actual standard-conformant JSON
*/
class NBT___EXPORT json_formatter
{
public:
void print(std::ostream& os, const tag& t) const;
};
}
}
#endif // JSON_FORMATTER_H_INCLUDED

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/*
* libnbt++ - A library for the Minecraft Named Binary Tag format.
* Copyright (C) 2013, 2015 ljfa-ag
*
* This file is part of libnbt++.
*
* libnbt++ is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* libnbt++ is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with libnbt++. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef TAG_REF_PROXY_H_INCLUDED
#define TAG_REF_PROXY_H_INCLUDED
#include "tag.h"
#include <string>
#include <type_traits>
#include "nbt++_export.h"
namespace nbt
{
/**
* @brief Contains an NBT value of fixed type
*
* This class is a convenience wrapper for @c std::unique_ptr<tag>.
* A value can contain any kind of tag or no tag (nullptr) and provides
* operations for handling tags of which the type is not known at compile time.
* Assignment or the set method on a value with no tag will fill in the value.
*
* The rationale for the existance of this class is to provide a type-erasured
* means of storing tags, especially when they are contained in tag_compound
* or tag_list. The alternative would be directly using @c std::unique_ptr<tag>
* and @c tag&, which is how it was done in libnbt++1. The main drawback is that
* it becomes very cumbersome to deal with tags of unknown type.
*
* For example, in this case it would not be possible to allow a syntax like
* <tt>compound["foo"] = 42</tt>. If the key "foo" does not exist beforehand,
* the left hand side could not have any sensible value if it was of type
* @c tag&.
* Firstly, the compound tag would have to create a new tag_int there, but it
* cannot know that the new tag is going to be assigned an integer.
* Also, if the type was @c tag& and it allowed assignment of integers, that
* would mean the tag base class has assignments and conversions like this.
* Which means that all other tag classes would inherit them from the base
* class, even though it does not make any sense to allow converting a
* tag_compound into an integer. Attempts like this should be caught at
* compile time.
*
* This is why all the syntactic sugar for tags is contained in the value class
* while the tag class only contains common operations for all tag types.
*/
class NBT___EXPORT value
{
public:
//Constructors
value() noexcept {}
explicit value(std::unique_ptr<tag>&& t) noexcept: tag_(std::move(t)) {}
explicit value(tag&& t);
//Moving
value(value&&) noexcept = default;
value& operator=(value&&) noexcept = default;
//Copying
explicit value(const value& rhs);
value& operator=(const value& rhs);
/**
* @brief Assigns the given value to the tag if the type matches
* @throw std::bad_cast if the type of @c t is not the same as the type
* of this value
*/
value& operator=(tag&& t);
void set(tag&& t);
//Conversion to tag
/**
* @brief Returns the contained tag
*
* If the value is uninitialized, the behavior is undefined.
*/
operator tag&() { return get(); }
operator const tag&() const { return get(); }
tag& get() { return *tag_; }
const tag& get() const { return *tag_; }
/**
* @brief Returns a reference to the contained tag as an instance of T
* @throw std::bad_cast if the tag is not of type T
*/
template<class T>
T& as();
template<class T>
const T& as() const;
//Assignment of primitives and string
/**
* @brief Assigns the given value to the tag if the type is compatible
* @throw std::bad_cast if the value is not convertible to the tag type
* via a widening conversion
*/
value& operator=(int8_t val);
value& operator=(int16_t val);
value& operator=(int32_t val);
value& operator=(int64_t val);
value& operator=(float val);
value& operator=(double val);
/**
* @brief Assigns the given string to the tag if it is a tag_string
* @throw std::bad_cast if the contained tag is not a tag_string
*/
value& operator=(const std::string& str);
value& operator=(std::string&& str);
//Conversions to primitives and string
/**
* @brief Returns the contained value if the type is compatible
* @throw std::bad_cast if the tag type is not convertible to the desired
* type via a widening conversion
*/
explicit operator int8_t() const;
explicit operator int16_t() const;
explicit operator int32_t() const;
explicit operator int64_t() const;
explicit operator float() const;
explicit operator double() const;
/**
* @brief Returns the contained string if the type is tag_string
*
* If the value is uninitialized, the behavior is undefined.
* @throw std::bad_cast if the tag type is not tag_string
*/
explicit operator const std::string&() const;
///Returns true if the value is not uninitialized
explicit operator bool() const { return tag_ != nullptr; }
/**
* @brief In case of a tag_compound, accesses a tag by key with bounds checking
*
* If the value is uninitialized, the behavior is undefined.
* @throw std::bad_cast if the tag type is not tag_compound
* @throw std::out_of_range if given key does not exist
* @sa tag_compound::at
*/
value& at(const std::string& key);
const value& at(const std::string& key) const;
/**
* @brief In case of a tag_compound, accesses a tag by key
*
* If the value is uninitialized, the behavior is undefined.
* @throw std::bad_cast if the tag type is not tag_compound
* @sa tag_compound::operator[]
*/
value& operator[](const std::string& key);
value& operator[](const char* key); //need this overload because of conflict with built-in operator[]
/**
* @brief In case of a tag_list, accesses a tag by index with bounds checking
*
* If the value is uninitialized, the behavior is undefined.
* @throw std::bad_cast if the tag type is not tag_list
* @throw std::out_of_range if the index is out of range
* @sa tag_list::at
*/
value& at(size_t i);
const value& at(size_t i) const;
/**
* @brief In case of a tag_list, accesses a tag by index
*
* No bounds checking is performed. If the value is uninitialized, the
* behavior is undefined.
* @throw std::bad_cast if the tag type is not tag_list
* @sa tag_list::operator[]
*/
value& operator[](size_t i);
const value& operator[](size_t i) const;
///Returns a reference to the underlying std::unique_ptr<tag>
std::unique_ptr<tag>& get_ptr() { return tag_; }
const std::unique_ptr<tag>& get_ptr() const { return tag_; }
///Resets the underlying std::unique_ptr<tag> to a different value
void set_ptr(std::unique_ptr<tag>&& t) { tag_ = std::move(t); }
///@sa tag::get_type
tag_type get_type() const;
NBT___EXPORT friend bool operator==(const value& lhs, const value& rhs);
NBT___EXPORT friend bool operator!=(const value& lhs, const value& rhs);
private:
std::unique_ptr<tag> tag_;
};
template<class T>
T& value::as()
{
return tag_->as<T>();
}
template<class T>
const T& value::as() const
{
return tag_->as<T>();
}
}
#endif // TAG_REF_PROXY_H_INCLUDED

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/*
* libnbt++ - A library for the Minecraft Named Binary Tag format.
* Copyright (C) 2013, 2015 ljfa-ag
*
* This file is part of libnbt++.
*
* libnbt++ is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* libnbt++ is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with libnbt++. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef VALUE_INITIALIZER_H_INCLUDED
#define VALUE_INITIALIZER_H_INCLUDED
#include "value.h"
#include "nbt++_export.h"
namespace nbt
{
/**
* @brief Helper class for implicitly constructing value objects
*
* This type is a subclass of @ref value. However the only difference to value
* is that this class has additional constructors which allow implicit
* conversion of various types to value objects. These constructors are not
* part of the value class itself because implicit conversions like this
* (especially from @c tag&& to @c value) can cause problems and ambiguities
* in some cases.
*
* value_initializer is especially useful as function parameter type, it will
* allow convenient conversion of various values to tags on function call.
*
* As value_initializer objects are in no way different than value objects,
* they can just be converted to value after construction.
*/
class NBT___EXPORT value_initializer : public value
{
public:
value_initializer(std::unique_ptr<tag>&& t) noexcept: value(std::move(t)) {}
value_initializer(std::nullptr_t) noexcept : value(nullptr) {}
value_initializer(value&& val) noexcept : value(std::move(val)) {}
value_initializer(tag&& t) : value(std::move(t)) {}
value_initializer(int8_t val);
value_initializer(int16_t val);
value_initializer(int32_t val);
value_initializer(int64_t val);
value_initializer(float val);
value_initializer(double val);
value_initializer(const std::string& str);
value_initializer(std::string&& str);
value_initializer(const char* str);
};
}
#endif // VALUE_INITIALIZER_H_INCLUDED

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/*
* libnbt++ - A library for the Minecraft Named Binary Tag format.
* Copyright (C) 2013, 2015 ljfa-ag
*
* This file is part of libnbt++.
*
* libnbt++ is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* libnbt++ is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with libnbt++. If not, see <http://www.gnu.org/licenses/>.
*/
#include "endian_str.h"
#include <climits>
#include <cstring>
#include <iostream>
static_assert(CHAR_BIT == 8, "Assuming that a byte has 8 bits");
static_assert(sizeof(float) == 4, "Assuming that a float is 4 byte long");
static_assert(sizeof(double) == 8, "Assuming that a double is 8 byte long");
namespace endian
{
namespace //anonymous
{
void pun_int_to_float(float& f, uint32_t i)
{
//Yes we need to do it this way to avoid undefined behavior
memcpy(&f, &i, 4);
}
uint32_t pun_float_to_int(float f)
{
uint32_t ret;
memcpy(&ret, &f, 4);
return ret;
}
void pun_int_to_double(double& d, uint64_t i)
{
memcpy(&d, &i, 8);
}
uint64_t pun_double_to_int(double f)
{
uint64_t ret;
memcpy(&ret, &f, 8);
return ret;
}
}
//------------------------------------------------------------------------------
void read_little(std::istream& is, uint8_t& x)
{
is.get(reinterpret_cast<char&>(x));
}
void read_little(std::istream& is, uint16_t& x)
{
uint8_t tmp[2];
is.read(reinterpret_cast<char*>(tmp), 2);
x = uint16_t(tmp[0])
| (uint16_t(tmp[1]) << 8);
}
void read_little(std::istream& is, uint32_t& x)
{
uint8_t tmp[4];
is.read(reinterpret_cast<char*>(tmp), 4);
x = uint32_t(tmp[0])
| (uint32_t(tmp[1]) << 8)
| (uint32_t(tmp[2]) << 16)
| (uint32_t(tmp[3]) << 24);
}
void read_little(std::istream& is, uint64_t& x)
{
uint8_t tmp[8];
is.read(reinterpret_cast<char*>(tmp), 8);
x = uint64_t(tmp[0])
| (uint64_t(tmp[1]) << 8)
| (uint64_t(tmp[2]) << 16)
| (uint64_t(tmp[3]) << 24)
| (uint64_t(tmp[4]) << 32)
| (uint64_t(tmp[5]) << 40)
| (uint64_t(tmp[6]) << 48)
| (uint64_t(tmp[7]) << 56);
}
void read_little(std::istream& is, int8_t & x) { read_little(is, reinterpret_cast<uint8_t &>(x)); }
void read_little(std::istream& is, int16_t& x) { read_little(is, reinterpret_cast<uint16_t&>(x)); }
void read_little(std::istream& is, int32_t& x) { read_little(is, reinterpret_cast<uint32_t&>(x)); }
void read_little(std::istream& is, int64_t& x) { read_little(is, reinterpret_cast<uint64_t&>(x)); }
void read_little(std::istream& is, float& x)
{
uint32_t tmp;
read_little(is, tmp);
pun_int_to_float(x, tmp);
}
void read_little(std::istream& is, double& x)
{
uint64_t tmp;
read_little(is, tmp);
pun_int_to_double(x, tmp);
}
//------------------------------------------------------------------------------
void read_big(std::istream& is, uint8_t& x)
{
is.read(reinterpret_cast<char*>(&x), 1);
}
void read_big(std::istream& is, uint16_t& x)
{
uint8_t tmp[2];
is.read(reinterpret_cast<char*>(tmp), 2);
x = uint16_t(tmp[1])
| (uint16_t(tmp[0]) << 8);
}
void read_big(std::istream& is, uint32_t& x)
{
uint8_t tmp[4];
is.read(reinterpret_cast<char*>(tmp), 4);
x = uint32_t(tmp[3])
| (uint32_t(tmp[2]) << 8)
| (uint32_t(tmp[1]) << 16)
| (uint32_t(tmp[0]) << 24);
}
void read_big(std::istream& is, uint64_t& x)
{
uint8_t tmp[8];
is.read(reinterpret_cast<char*>(tmp), 8);
x = uint64_t(tmp[7])
| (uint64_t(tmp[6]) << 8)
| (uint64_t(tmp[5]) << 16)
| (uint64_t(tmp[4]) << 24)
| (uint64_t(tmp[3]) << 32)
| (uint64_t(tmp[2]) << 40)
| (uint64_t(tmp[1]) << 48)
| (uint64_t(tmp[0]) << 56);
}
void read_big(std::istream& is, int8_t & x) { read_big(is, reinterpret_cast<uint8_t &>(x)); }
void read_big(std::istream& is, int16_t& x) { read_big(is, reinterpret_cast<uint16_t&>(x)); }
void read_big(std::istream& is, int32_t& x) { read_big(is, reinterpret_cast<uint32_t&>(x)); }
void read_big(std::istream& is, int64_t& x) { read_big(is, reinterpret_cast<uint64_t&>(x)); }
void read_big(std::istream& is, float& x)
{
uint32_t tmp;
read_big(is, tmp);
pun_int_to_float(x, tmp);
}
void read_big(std::istream& is, double& x)
{
uint64_t tmp;
read_big(is, tmp);
pun_int_to_double(x, tmp);
}
//------------------------------------------------------------------------------
void write_little(std::ostream& os, uint8_t x)
{
os.put(x);
}
void write_little(std::ostream& os, uint16_t x)
{
uint8_t tmp[2] {
uint8_t(x),
uint8_t(x >> 8)};
os.write(reinterpret_cast<const char*>(tmp), 2);
}
void write_little(std::ostream& os, uint32_t x)
{
uint8_t tmp[4] {
uint8_t(x),
uint8_t(x >> 8),
uint8_t(x >> 16),
uint8_t(x >> 24)};
os.write(reinterpret_cast<const char*>(tmp), 4);
}
void write_little(std::ostream& os, uint64_t x)
{
uint8_t tmp[8] {
uint8_t(x),
uint8_t(x >> 8),
uint8_t(x >> 16),
uint8_t(x >> 24),
uint8_t(x >> 32),
uint8_t(x >> 40),
uint8_t(x >> 48),
uint8_t(x >> 56)};
os.write(reinterpret_cast<const char*>(tmp), 8);
}
void write_little(std::ostream& os, int8_t x) { write_little(os, static_cast<uint8_t >(x)); }
void write_little(std::ostream& os, int16_t x) { write_little(os, static_cast<uint16_t>(x)); }
void write_little(std::ostream& os, int32_t x) { write_little(os, static_cast<uint32_t>(x)); }
void write_little(std::ostream& os, int64_t x) { write_little(os, static_cast<uint64_t>(x)); }
void write_little(std::ostream& os, float x)
{
write_little(os, pun_float_to_int(x));
}
void write_little(std::ostream& os, double x)
{
write_little(os, pun_double_to_int(x));
}
//------------------------------------------------------------------------------
void write_big(std::ostream& os, uint8_t x)
{
os.put(x);
}
void write_big(std::ostream& os, uint16_t x)
{
uint8_t tmp[2] {
uint8_t(x >> 8),
uint8_t(x)};
os.write(reinterpret_cast<const char*>(tmp), 2);
}
void write_big(std::ostream& os, uint32_t x)
{
uint8_t tmp[4] {
uint8_t(x >> 24),
uint8_t(x >> 16),
uint8_t(x >> 8),
uint8_t(x)};
os.write(reinterpret_cast<const char*>(tmp), 4);
}
void write_big(std::ostream& os, uint64_t x)
{
uint8_t tmp[8] {
uint8_t(x >> 56),
uint8_t(x >> 48),
uint8_t(x >> 40),
uint8_t(x >> 32),
uint8_t(x >> 24),
uint8_t(x >> 16),
uint8_t(x >> 8),
uint8_t(x)};
os.write(reinterpret_cast<const char*>(tmp), 8);
}
void write_big(std::ostream& os, int8_t x) { write_big(os, static_cast<uint8_t >(x)); }
void write_big(std::ostream& os, int16_t x) { write_big(os, static_cast<uint16_t>(x)); }
void write_big(std::ostream& os, int32_t x) { write_big(os, static_cast<uint32_t>(x)); }
void write_big(std::ostream& os, int64_t x) { write_big(os, static_cast<uint64_t>(x)); }
void write_big(std::ostream& os, float x)
{
write_big(os, pun_float_to_int(x));
}
void write_big(std::ostream& os, double x)
{
write_big(os, pun_double_to_int(x));
}
}

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/*
* libnbt++ - A library for the Minecraft Named Binary Tag format.
* Copyright (C) 2013, 2015 ljfa-ag
*
* This file is part of libnbt++.
*
* libnbt++ is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* libnbt++ is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with libnbt++. If not, see <http://www.gnu.org/licenses/>.
*/
#include "io/stream_reader.h"
#include "make_unique.h"
#include "tag_compound.h"
#include <istream>
namespace nbt
{
namespace io
{
std::pair<std::string, std::unique_ptr<tag_compound>> read_compound(std::istream& is, endian::endian e)
{
return stream_reader(is, e).read_compound();
}
std::pair<std::string, std::unique_ptr<tag>> read_tag(std::istream& is, endian::endian e)
{
return stream_reader(is, e).read_tag();
}
stream_reader::stream_reader(std::istream& is, endian::endian e) noexcept:
is(is), endian(e)
{}
std::istream& stream_reader::get_istr() const
{
return is;
}
endian::endian stream_reader::get_endian() const
{
return endian;
}
std::pair<std::string, std::unique_ptr<tag_compound>> stream_reader::read_compound()
{
if(read_type() != tag_type::Compound)
{
is.setstate(std::ios::failbit);
throw input_error("Tag is not a compound");
}
std::string key = read_string();
auto comp = make_unique<tag_compound>();
comp->read_payload(*this);
return {std::move(key), std::move(comp)};
}
std::pair<std::string, std::unique_ptr<tag>> stream_reader::read_tag()
{
tag_type type = read_type();
std::string key = read_string();
std::unique_ptr<tag> t = read_payload(type);
return {std::move(key), std::move(t)};
}
std::unique_ptr<tag> stream_reader::read_payload(tag_type type)
{
std::unique_ptr<tag> t = tag::create(type);
t->read_payload(*this);
return t;
}
tag_type stream_reader::read_type(bool allow_end)
{
int type = is.get();
if(!is)
throw input_error("Error reading tag type");
if(!is_valid_type(type, allow_end))
{
is.setstate(std::ios::failbit);
throw input_error("Invalid tag type: " + std::to_string(type));
}
return static_cast<tag_type>(type);
}
std::string stream_reader::read_string()
{
uint16_t len;
read_num(len);
if(!is)
throw input_error("Error reading string");
std::string ret(len, '\0');
is.read(&ret[0], len); //C++11 allows us to do this
if(!is)
throw input_error("Error reading string");
return ret;
}
}
}

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/*
* libnbt++ - A library for the Minecraft Named Binary Tag format.
* Copyright (C) 2013, 2015 ljfa-ag
*
* This file is part of libnbt++.
*
* libnbt++ is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* libnbt++ is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with libnbt++. If not, see <http://www.gnu.org/licenses/>.
*/
#include "io/stream_writer.h"
#include <sstream>
namespace nbt
{
namespace io
{
void write_tag(const std::string& key, const tag& t, std::ostream& os, endian::endian e)
{
stream_writer(os, e).write_tag(key, t);
}
void stream_writer::write_tag(const std::string& key, const tag& t)
{
write_type(t.get_type());
write_string(key);
write_payload(t);
}
void stream_writer::write_string(const std::string& str)
{
if(str.size() > max_string_len)
{
os.setstate(std::ios::failbit);
std::ostringstream sstr;
sstr << "String is too long for NBT (" << str.size() << " > " << max_string_len << ")";
throw std::length_error(sstr.str());
}
write_num(static_cast<uint16_t>(str.size()));
os.write(str.data(), str.size());
}
}
}

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/*
* libnbt++ - A library for the Minecraft Named Binary Tag format.
* Copyright (C) 2013, 2015 ljfa-ag
*
* This file is part of libnbt++.
*
* libnbt++ is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* libnbt++ is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with libnbt++. If not, see <http://www.gnu.org/licenses/>.
*/
#include "tag.h"
#include "nbt_tags.h"
#include "text/json_formatter.h"
#include <limits>
#include <ostream>
#include <stdexcept>
#include <typeinfo>
namespace nbt
{
static_assert(std::numeric_limits<float>::is_iec559 && std::numeric_limits<double>::is_iec559,
"The floating point values for NBT must conform to IEC 559/IEEE 754");
bool is_valid_type(int type, bool allow_end)
{
return (allow_end ? 0 : 1) <= type && type <= 11;
}
std::unique_ptr<tag> tag::clone() &&
{
return std::move(*this).move_clone();
}
std::unique_ptr<tag> tag::create(tag_type type)
{
switch(type)
{
case tag_type::Byte: return make_unique<tag_byte>();
case tag_type::Short: return make_unique<tag_short>();
case tag_type::Int: return make_unique<tag_int>();
case tag_type::Long: return make_unique<tag_long>();
case tag_type::Float: return make_unique<tag_float>();
case tag_type::Double: return make_unique<tag_double>();
case tag_type::Byte_Array: return make_unique<tag_byte_array>();
case tag_type::String: return make_unique<tag_string>();
case tag_type::List: return make_unique<tag_list>();
case tag_type::Compound: return make_unique<tag_compound>();
case tag_type::Int_Array: return make_unique<tag_int_array>();
default: throw std::invalid_argument("Invalid tag type");
}
}
bool operator==(const tag& lhs, const tag& rhs)
{
if(typeid(lhs) != typeid(rhs))
return false;
return lhs.equals(rhs);
}
bool operator!=(const tag& lhs, const tag& rhs)
{
return !(lhs == rhs);
}
std::ostream& operator<<(std::ostream& os, tag_type tt)
{
switch(tt)
{
case tag_type::End: return os << "end";
case tag_type::Byte: return os << "byte";
case tag_type::Short: return os << "short";
case tag_type::Int: return os << "int";
case tag_type::Long: return os << "long";
case tag_type::Float: return os << "float";
case tag_type::Double: return os << "double";
case tag_type::Byte_Array: return os << "byte_array";
case tag_type::String: return os << "string";
case tag_type::List: return os << "list";
case tag_type::Compound: return os << "compound";
case tag_type::Int_Array: return os << "int_array";
case tag_type::Null: return os << "null";
default: return os << "invalid";
}
}
std::ostream& operator<<(std::ostream& os, const tag& t)
{
static const text::json_formatter formatter;
formatter.print(os, t);
return os;
}
}

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/*
* libnbt++ - A library for the Minecraft Named Binary Tag format.
* Copyright (C) 2013, 2015 ljfa-ag
*
* This file is part of libnbt++.
*
* libnbt++ is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* libnbt++ is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with libnbt++. If not, see <http://www.gnu.org/licenses/>.
*/
#include "tag_array.h"
#include "io/stream_reader.h"
#include "io/stream_writer.h"
#include <istream>
namespace nbt
{
template<class T>
T& tag_array<T>::at(size_t i)
{
return data.at(i);
}
template<class T>
T tag_array<T>::at(size_t i) const
{
return data.at(i);
}
//Slightly different between byte_array and int_array
//Reading
template<>
void tag_array<int8_t>::read_payload(io::stream_reader& reader)
{
int32_t length;
reader.read_num(length);
if(length < 0)
reader.get_istr().setstate(std::ios::failbit);
if(!reader.get_istr())
throw io::input_error("Error reading length of tag_byte_array");
data.resize(length);
reader.get_istr().read(reinterpret_cast<char*>(data.data()), length);
if(!reader.get_istr())
throw io::input_error("Error reading contents of tag_byte_array");
}
template<>
void tag_array<int32_t>::read_payload(io::stream_reader& reader)
{
int32_t length;
reader.read_num(length);
if(length < 0)
reader.get_istr().setstate(std::ios::failbit);
if(!reader.get_istr())
throw io::input_error("Error reading length of tag_int_array");
data.clear();
data.reserve(length);
for(int32_t i = 0; i < length; ++i)
{
int32_t val;
reader.read_num(val);
data.push_back(val);
}
if(!reader.get_istr())
throw io::input_error("Error reading contents of tag_int_array");
}
//Writing
template<>
void tag_array<int8_t>::write_payload(io::stream_writer& writer) const
{
if(size() > io::stream_writer::max_array_len)
{
writer.get_ostr().setstate(std::ios::failbit);
throw std::length_error("Byte array is too large for NBT");
}
writer.write_num(static_cast<int32_t>(size()));
writer.get_ostr().write(reinterpret_cast<const char*>(data.data()), data.size());
}
template<>
void tag_array<int32_t>::write_payload(io::stream_writer& writer) const
{
if(size() > io::stream_writer::max_array_len)
{
writer.get_ostr().setstate(std::ios::failbit);
throw std::length_error("Int array is too large for NBT");
}
writer.write_num(static_cast<int32_t>(size()));
for(int32_t i: data)
writer.write_num(i);
}
//Enforce template instantiations
template class tag_array<int8_t>;
template class tag_array<int32_t>;
}

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/*
* libnbt++ - A library for the Minecraft Named Binary Tag format.
* Copyright (C) 2013, 2015 ljfa-ag
*
* This file is part of libnbt++.
*
* libnbt++ is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* libnbt++ is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with libnbt++. If not, see <http://www.gnu.org/licenses/>.
*/
#include "tag_compound.h"
#include "io/stream_reader.h"
#include "io/stream_writer.h"
#include <istream>
#include <sstream>
namespace nbt
{
tag_compound::tag_compound(std::initializer_list<std::pair<std::string, value_initializer>> init)
{
for(const auto& pair: init)
tags.emplace(std::move(pair.first), std::move(pair.second));
}
value& tag_compound::at(const std::string& key)
{
return tags.at(key);
}
const value& tag_compound::at(const std::string& key) const
{
return tags.at(key);
}
std::pair<tag_compound::iterator, bool> tag_compound::put(const std::string& key, value_initializer&& val)
{
auto it = tags.find(key);
if(it != tags.end())
{
it->second = std::move(val);
return {it, false};
}
else
{
return tags.emplace(key, std::move(val));
}
}
std::pair<tag_compound::iterator, bool> tag_compound::insert(const std::string& key, value_initializer&& val)
{
return tags.emplace(key, std::move(val));
}
bool tag_compound::erase(const std::string& key)
{
return tags.erase(key) != 0;
}
bool tag_compound::has_key(const std::string& key) const
{
return tags.find(key) != tags.end();
}
bool tag_compound::has_key(const std::string& key, tag_type type) const
{
auto it = tags.find(key);
return it != tags.end() && it->second.get_type() == type;
}
void tag_compound::read_payload(io::stream_reader& reader)
{
clear();
tag_type tt;
while((tt = reader.read_type(true)) != tag_type::End)
{
std::string key;
try
{
key = reader.read_string();
}
catch(io::input_error& ex)
{
std::ostringstream str;
str << "Error reading key of tag_" << tt;
throw io::input_error(str.str());
}
auto tptr = reader.read_payload(tt);
tags.emplace(std::move(key), value(std::move(tptr)));
}
}
void tag_compound::write_payload(io::stream_writer& writer) const
{
for(const auto& pair: tags)
writer.write_tag(pair.first, pair.second);
writer.write_type(tag_type::End);
}
}

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/*
* libnbt++ - A library for the Minecraft Named Binary Tag format.
* Copyright (C) 2013, 2015 ljfa-ag
*
* This file is part of libnbt++.
*
* libnbt++ is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* libnbt++ is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with libnbt++. If not, see <http://www.gnu.org/licenses/>.
*/
#include "tag_list.h"
#include "nbt_tags.h"
#include "io/stream_reader.h"
#include "io/stream_writer.h"
#include <istream>
namespace nbt
{
tag_list::tag_list(std::initializer_list<int8_t> il) { init<tag_byte>(il); }
tag_list::tag_list(std::initializer_list<int16_t> il) { init<tag_short>(il); }
tag_list::tag_list(std::initializer_list<int32_t> il) { init<tag_int>(il); }
tag_list::tag_list(std::initializer_list<int64_t> il) { init<tag_long>(il); }
tag_list::tag_list(std::initializer_list<float> il) { init<tag_float>(il); }
tag_list::tag_list(std::initializer_list<double> il) { init<tag_double>(il); }
tag_list::tag_list(std::initializer_list<std::string> il) { init<tag_string>(il); }
tag_list::tag_list(std::initializer_list<tag_byte_array> il) { init<tag_byte_array>(il); }
tag_list::tag_list(std::initializer_list<tag_list> il) { init<tag_list>(il); }
tag_list::tag_list(std::initializer_list<tag_compound> il) { init<tag_compound>(il); }
tag_list::tag_list(std::initializer_list<tag_int_array> il) { init<tag_int_array>(il); }
tag_list::tag_list(std::initializer_list<value> init)
{
if(init.size() == 0)
el_type_ = tag_type::Null;
else
{
el_type_ = init.begin()->get_type();
for(const value& val: init)
{
if(!val || val.get_type() != el_type_)
throw std::invalid_argument("The values are not all the same type");
}
tags.assign(init.begin(), init.end());
}
}
value& tag_list::at(size_t i)
{
return tags.at(i);
}
const value& tag_list::at(size_t i) const
{
return tags.at(i);
}
void tag_list::set(size_t i, value&& val)
{
if(val.get_type() != el_type_)
throw std::invalid_argument("The tag type does not match the list's content type");
tags.at(i) = std::move(val);
}
void tag_list::push_back(value_initializer&& val)
{
if(!val) //don't allow null values
throw std::invalid_argument("The value must not be null");
if(el_type_ == tag_type::Null) //set content type if undetermined
el_type_ = val.get_type();
else if(el_type_ != val.get_type())
throw std::invalid_argument("The tag type does not match the list's content type");
tags.push_back(std::move(val));
}
void tag_list::reset(tag_type type)
{
clear();
el_type_ = type;
}
void tag_list::read_payload(io::stream_reader& reader)
{
tag_type lt = reader.read_type(true);
int32_t length;
reader.read_num(length);
if(length < 0)
reader.get_istr().setstate(std::ios::failbit);
if(!reader.get_istr())
throw io::input_error("Error reading length of tag_list");
if(lt != tag_type::End)
{
reset(lt);
tags.reserve(length);
for(int32_t i = 0; i < length; ++i)
tags.emplace_back(reader.read_payload(lt));
}
else
{
//In case of tag_end, ignore the length and leave the type undetermined
reset(tag_type::Null);
}
}
void tag_list::write_payload(io::stream_writer& writer) const
{
if(size() > io::stream_writer::max_array_len)
{
writer.get_ostr().setstate(std::ios::failbit);
throw std::length_error("List is too large for NBT");
}
writer.write_type(el_type_ != tag_type::Null
? el_type_
: tag_type::End);
writer.write_num(static_cast<int32_t>(size()));
for(const auto& val: tags)
{
//check if the value is of the correct type
if(val.get_type() != el_type_)
{
writer.get_ostr().setstate(std::ios::failbit);
throw std::logic_error("The tags in the list do not all match the content type");
}
writer.write_payload(val);
}
}
bool operator==(const tag_list& lhs, const tag_list& rhs)
{
return lhs.el_type_ == rhs.el_type_ && lhs.tags == rhs.tags;
}
bool operator!=(const tag_list& lhs, const tag_list& rhs)
{
return !(lhs == rhs);
}
}

44
depends/libnbtplusplus/src/tag_string.cpp Normal file
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/*
* libnbt++ - A library for the Minecraft Named Binary Tag format.
* Copyright (C) 2013, 2015 ljfa-ag
*
* This file is part of libnbt++.
*
* libnbt++ is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* libnbt++ is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with libnbt++. If not, see <http://www.gnu.org/licenses/>.
*/
#include "tag_string.h"
#include "io/stream_reader.h"
#include "io/stream_writer.h"
namespace nbt
{
void tag_string::read_payload(io::stream_reader& reader)
{
try
{
value = reader.read_string();
}
catch(io::input_error& ex)
{
throw io::input_error("Error reading tag_string");
}
}
void tag_string::write_payload(io::stream_writer& writer) const
{
writer.write_string(value);
}
}

195
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/*
* libnbt++ - A library for the Minecraft Named Binary Tag format.
* Copyright (C) 2013, 2015 ljfa-ag
*
* This file is part of libnbt++.
*
* libnbt++ is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* libnbt++ is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with libnbt++. If not, see <http://www.gnu.org/licenses/>.
*/
#include "text/json_formatter.h"
#include "nbt_tags.h"
#include "nbt_visitor.h"
#include <cmath>
#include <iomanip>
#include <limits>
namespace nbt
{
namespace text
{
namespace //anonymous
{
///Helper class which uses the Visitor pattern to pretty-print tags
class json_fmt_visitor : public const_nbt_visitor
{
public:
json_fmt_visitor(std::ostream& os, const json_formatter& fmt):
os(os)
{}
void visit(const tag_byte& b) override
{ os << static_cast<int>(b.get()) << "b"; } //We don't want to print a character
void visit(const tag_short& s) override
{ os << s.get() << "s"; }
void visit(const tag_int& i) override
{ os << i.get(); }
void visit(const tag_long& l) override
{ os << l.get() << "l"; }
void visit(const tag_float& f) override
{
write_float(f.get());
os << "f";
}
void visit(const tag_double& d) override
{
write_float(d.get());
os << "d";
}
void visit(const tag_byte_array& ba) override
{ os << "[" << ba.size() << " bytes]"; }
void visit(const tag_string& s) override
{ os << '"' << s.get() << '"'; } //TODO: escape special characters
void visit(const tag_list& l) override
{
//Wrap lines for lists of lists or compounds.
//Lists of other types can usually be on one line without problem.
const bool break_lines = l.size() > 0 &&
(l.el_type() == tag_type::List || l.el_type() == tag_type::Compound);
os << "[";
if(break_lines)
{
os << "\n";
++indent_lvl;
for(unsigned int i = 0; i < l.size(); ++i)
{
indent();
if(l[i])
l[i].get().accept(*this);
else
write_null();
if(i != l.size()-1)
os << ",";
os << "\n";
}
--indent_lvl;
indent();
}
else
{
for(unsigned int i = 0; i < l.size(); ++i)
{
if(l[i])
l[i].get().accept(*this);
else
write_null();
if(i != l.size()-1)
os << ", ";
}
}
os << "]";
}
void visit(const tag_compound& c) override
{
if(c.size() == 0) //No line breaks inside empty compounds please
{
os << "{}";
return;
}
os << "{\n";
++indent_lvl;
unsigned int i = 0;
for(const auto& kv: c)
{
indent();
os << kv.first << ": ";
if(kv.second)
kv.second.get().accept(*this);
else
write_null();
if(i != c.size()-1)
os << ",";
os << "\n";
++i;
}
--indent_lvl;
indent();
os << "}";
}
void visit(const tag_int_array& ia) override
{
os << "[";
for(unsigned int i = 0; i < ia.size(); ++i)
{
os << ia[i];
if(i != ia.size()-1)
os << ", ";
}
os << "]";
}
private:
const std::string indent_str = " ";
std::ostream& os;
int indent_lvl = 0;
void indent()
{
for(int i = 0; i < indent_lvl; ++i)
os << indent_str;
}
template<class T>
void write_float(T val, int precision = std::numeric_limits<T>::max_digits10)
{
if(std::isfinite(val))
os << std::setprecision(precision) << val;
else if(std::isinf(val))
{
if(std::signbit(val))
os << "-";
os << "Infinity";
}
else
os << "NaN";
}
void write_null()
{
os << "null";
}
};
}
void json_formatter::print(std::ostream& os, const tag& t) const
{
json_fmt_visitor v(os, *this);
t.accept(v);
}
}
}

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/*
* libnbt++ - A library for the Minecraft Named Binary Tag format.
* Copyright (C) 2013, 2015 ljfa-ag
*
* This file is part of libnbt++.
*
* libnbt++ is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* libnbt++ is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with libnbt++. If not, see <http://www.gnu.org/licenses/>.
*/
#include "value.h"
#include "nbt_tags.h"
#include <typeinfo>
namespace nbt
{
value::value(tag&& t):
tag_(std::move(t).move_clone())
{}
value::value(const value& rhs):
tag_(rhs.tag_ ? rhs.tag_->clone() : nullptr)
{}
value& value::operator=(const value& rhs)
{
if(this != &rhs)
{
tag_ = rhs.tag_ ? rhs.tag_->clone() : nullptr;
}
return *this;
}
value& value::operator=(tag&& t)
{
set(std::move(t));
return *this;
}
void value::set(tag&& t)
{
if(tag_)
tag_->assign(std::move(t));
else
tag_ = std::move(t).move_clone();
}
//Primitive assignment
//FIXME: Make this less copypaste!
value& value::operator=(int8_t val)
{
if(!tag_)
set(tag_byte(val));
else switch(tag_->get_type())
{
case tag_type::Byte:
static_cast<tag_byte&>(*tag_).set(val);
break;
case tag_type::Short:
static_cast<tag_short&>(*tag_).set(val);
break;
case tag_type::Int:
static_cast<tag_int&>(*tag_).set(val);
break;
case tag_type::Long:
static_cast<tag_long&>(*tag_).set(val);
break;
case tag_type::Float:
static_cast<tag_float&>(*tag_).set(val);
break;
case tag_type::Double:
static_cast<tag_double&>(*tag_).set(val);
break;
default:
throw std::bad_cast();
}
return *this;
}
value& value::operator=(int16_t val)
{
if(!tag_)
set(tag_short(val));
else switch(tag_->get_type())
{
case tag_type::Short:
static_cast<tag_short&>(*tag_).set(val);
break;
case tag_type::Int:
static_cast<tag_int&>(*tag_).set(val);
break;
case tag_type::Long:
static_cast<tag_long&>(*tag_).set(val);
break;
case tag_type::Float:
static_cast<tag_float&>(*tag_).set(val);
break;
case tag_type::Double:
static_cast<tag_double&>(*tag_).set(val);
break;
default:
throw std::bad_cast();
}
return *this;
}
value& value::operator=(int32_t val)
{
if(!tag_)
set(tag_int(val));
else switch(tag_->get_type())
{
case tag_type::Int:
static_cast<tag_int&>(*tag_).set(val);
break;
case tag_type::Long:
static_cast<tag_long&>(*tag_).set(val);
break;
case tag_type::Float:
static_cast<tag_float&>(*tag_).set(val);
break;
case tag_type::Double:
static_cast<tag_double&>(*tag_).set(val);
break;
default:
throw std::bad_cast();
}
return *this;
}
value& value::operator=(int64_t val)
{
if(!tag_)
set(tag_long(val));
else switch(tag_->get_type())
{
case tag_type::Long:
static_cast<tag_long&>(*tag_).set(val);
break;
case tag_type::Float:
static_cast<tag_float&>(*tag_).set(val);
break;
case tag_type::Double:
static_cast<tag_double&>(*tag_).set(val);
break;
default:
throw std::bad_cast();
}
return *this;
}
value& value::operator=(float val)
{
if(!tag_)
set(tag_float(val));
else switch(tag_->get_type())
{
case tag_type::Float:
static_cast<tag_float&>(*tag_).set(val);
break;
case tag_type::Double:
static_cast<tag_double&>(*tag_).set(val);
break;
default:
throw std::bad_cast();
}
return *this;
}
value& value::operator=(double val)
{
if(!tag_)
set(tag_double(val));
else switch(tag_->get_type())
{
case tag_type::Double:
static_cast<tag_double&>(*tag_).set(val);
break;
default:
throw std::bad_cast();
}
return *this;
}
//Primitive conversion
value::operator int8_t() const
{
switch(tag_->get_type())
{
case tag_type::Byte:
return static_cast<tag_byte&>(*tag_).get();
default:
throw std::bad_cast();
}
}
value::operator int16_t() const
{
switch(tag_->get_type())
{
case tag_type::Byte:
return static_cast<tag_byte&>(*tag_).get();
case tag_type::Short:
return static_cast<tag_short&>(*tag_).get();
default:
throw std::bad_cast();
}
}
value::operator int32_t() const
{
switch(tag_->get_type())
{
case tag_type::Byte:
return static_cast<tag_byte&>(*tag_).get();
case tag_type::Short:
return static_cast<tag_short&>(*tag_).get();
case tag_type::Int:
return static_cast<tag_int&>(*tag_).get();
default:
throw std::bad_cast();
}
}
value::operator int64_t() const
{
switch(tag_->get_type())
{
case tag_type::Byte:
return static_cast<tag_byte&>(*tag_).get();
case tag_type::Short:
return static_cast<tag_short&>(*tag_).get();
case tag_type::Int:
return static_cast<tag_int&>(*tag_).get();
case tag_type::Long:
return static_cast<tag_long&>(*tag_).get();
default:
throw std::bad_cast();
}
}
value::operator float() const
{
switch(tag_->get_type())
{
case tag_type::Byte:
return static_cast<tag_byte&>(*tag_).get();
case tag_type::Short:
return static_cast<tag_short&>(*tag_).get();
case tag_type::Int:
return static_cast<tag_int&>(*tag_).get();
case tag_type::Long:
return static_cast<tag_long&>(*tag_).get();
case tag_type::Float:
return static_cast<tag_float&>(*tag_).get();
default:
throw std::bad_cast();
}
}
value::operator double() const
{
switch(tag_->get_type())
{
case tag_type::Byte:
return static_cast<tag_byte&>(*tag_).get();
case tag_type::Short:
return static_cast<tag_short&>(*tag_).get();
case tag_type::Int:
return static_cast<tag_int&>(*tag_).get();
case tag_type::Long:
return static_cast<tag_long&>(*tag_).get();
case tag_type::Float:
return static_cast<tag_float&>(*tag_).get();
case tag_type::Double:
return static_cast<tag_double&>(*tag_).get();
default:
throw std::bad_cast();
}
}
value& value::operator=(std::string&& str)
{
if(!tag_)
set(tag_string(std::move(str)));
else
dynamic_cast<tag_string&>(*tag_).set(std::move(str));
return *this;
}
value::operator const std::string&() const
{
return dynamic_cast<tag_string&>(*tag_).get();
}
value& value::at(const std::string& key)
{
return dynamic_cast<tag_compound&>(*tag_).at(key);
}
const value& value::at(const std::string& key) const
{
return dynamic_cast<const tag_compound&>(*tag_).at(key);
}
value& value::operator[](const std::string& key)
{
return dynamic_cast<tag_compound&>(*tag_)[key];
}
value& value::operator[](const char* key)
{
return (*this)[std::string(key)];
}
value& value::at(size_t i)
{
return dynamic_cast<tag_list&>(*tag_).at(i);
}
const value& value::at(size_t i) const
{
return dynamic_cast<const tag_list&>(*tag_).at(i);
}
value& value::operator[](size_t i)
{
return dynamic_cast<tag_list&>(*tag_)[i];
}
const value& value::operator[](size_t i) const
{
return dynamic_cast<const tag_list&>(*tag_)[i];
}
tag_type value::get_type() const
{
return tag_ ? tag_->get_type() : tag_type::Null;
}
bool operator==(const value& lhs, const value& rhs)
{
if(lhs.tag_ != nullptr && rhs.tag_ != nullptr)
return *lhs.tag_ == *rhs.tag_;
else
return lhs.tag_ == nullptr && rhs.tag_ == nullptr;
}
bool operator!=(const value& lhs, const value& rhs)
{
return !(lhs == rhs);
}
}

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/*
* libnbt++ - A library for the Minecraft Named Binary Tag format.
* Copyright (C) 2013, 2015 ljfa-ag
*
* This file is part of libnbt++.
*
* libnbt++ is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* libnbt++ is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with libnbt++. If not, see <http://www.gnu.org/licenses/>.
*/
#include "value_initializer.h"
#include "nbt_tags.h"
namespace nbt
{
value_initializer::value_initializer(int8_t val) : value(tag_byte(val)) {}
value_initializer::value_initializer(int16_t val) : value(tag_short(val)) {}
value_initializer::value_initializer(int32_t val) : value(tag_int(val)) {}
value_initializer::value_initializer(int64_t val) : value(tag_long(val)) {}
value_initializer::value_initializer(float val) : value(tag_float(val)) {}
value_initializer::value_initializer(double val) : value(tag_double(val)) {}
value_initializer::value_initializer(const std::string& str): value(tag_string(str)) {}
value_initializer::value_initializer(std::string&& str) : value(tag_string(std::move(str))) {}
value_initializer::value_initializer(const char* str) : value(tag_string(str)) {}
}

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enable_testing()
include_directories(${libnbt++_SOURCE_DIR}/include)
include_directories(${CXXTEST_INCLUDE_DIR})
CXXTEST_ADD_TEST(nbttest nbttest.cpp ${CMAKE_CURRENT_SOURCE_DIR}/nbttest.h)
target_link_libraries(nbttest nbt++)
CXXTEST_ADD_TEST(endian_str_test endian_str_test.cpp ${CMAKE_CURRENT_SOURCE_DIR}/endian_str_test.h)
target_link_libraries(endian_str_test nbt++)
CXXTEST_ADD_TEST(read_test read_test.cpp ${CMAKE_CURRENT_SOURCE_DIR}/read_test.h)
target_link_libraries(read_test nbt++)
add_custom_command(TARGET read_test POST_BUILD
COMMAND ${CMAKE_COMMAND} -E
copy_directory ${CMAKE_CURRENT_SOURCE_DIR}/testfiles ${CMAKE_CURRENT_BINARY_DIR})
CXXTEST_ADD_TEST(write_test write_test.cpp ${CMAKE_CURRENT_SOURCE_DIR}/write_test.h)
target_link_libraries(write_test nbt++)
add_executable(format_test format_test.cpp)
target_link_libraries(format_test nbt++)
add_test(format_test format_test)

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/*
* libnbt++ - A library for the Minecraft Named Binary Tag format.
* Copyright (C) 2013, 2015 ljfa-ag
*
* This file is part of libnbt++.
*
* libnbt++ is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* libnbt++ is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with libnbt++. If not, see <http://www.gnu.org/licenses/>.
*/
#include <cxxtest/TestSuite.h>
#include "endian_str.h"
#include <cstdlib>
#include <iostream>
#include <sstream>
using namespace endian;
class endian_str_test : public CxxTest::TestSuite
{
public:
void test_uint()
{
std::stringstream str(std::ios::in | std::ios::out | std::ios::binary);
write_little(str, uint8_t (0x01));
write_little(str, uint16_t(0x0102));
write (str, uint32_t(0x01020304), endian::little);
write_little(str, uint64_t(0x0102030405060708));
write_big (str, uint8_t (0x09));
write_big (str, uint16_t(0x090A));
write_big (str, uint32_t(0x090A0B0C));
write (str, uint64_t(0x090A0B0C0D0E0F10), endian::big);
std::string expected{
1,
2, 1,
4, 3, 2, 1,
8, 7, 6, 5, 4, 3, 2, 1,
9,
9, 10,
9, 10, 11, 12,
9, 10, 11, 12, 13, 14, 15, 16
};
TS_ASSERT_EQUALS(str.str(), expected);
uint8_t u8;
uint16_t u16;
uint32_t u32;
uint64_t u64;
read_little(str, u8);
TS_ASSERT_EQUALS(u8, 0x01);
read_little(str, u16);
TS_ASSERT_EQUALS(u16, 0x0102);
read_little(str, u32);
TS_ASSERT_EQUALS(u32, 0x01020304u);
read(str, u64, endian::little);
TS_ASSERT_EQUALS(u64, 0x0102030405060708u);
read_big(str, u8);
TS_ASSERT_EQUALS(u8, 0x09);
read_big(str, u16);
TS_ASSERT_EQUALS(u16, 0x090A);
read(str, u32, endian::big);
TS_ASSERT_EQUALS(u32, 0x090A0B0Cu);
read_big(str, u64);
TS_ASSERT_EQUALS(u64, 0x090A0B0C0D0E0F10u);
TS_ASSERT(str); //Check if stream has failed
}
void test_sint()
{
std::stringstream str(std::ios::in | std::ios::out | std::ios::binary);
write_little(str, int8_t (-0x01));
write_little(str, int16_t(-0x0102));
write_little(str, int32_t(-0x01020304));
write (str, int64_t(-0x0102030405060708), endian::little);
write_big (str, int8_t (-0x09));
write_big (str, int16_t(-0x090A));
write (str, int32_t(-0x090A0B0C), endian::big);
write_big (str, int64_t(-0x090A0B0C0D0E0F10));
std::string expected{ //meh, stupid narrowing conversions
'\xFF',
'\xFE', '\xFE',
'\xFC', '\xFC', '\xFD', '\xFE',
'\xF8', '\xF8', '\xF9', '\xFA', '\xFB', '\xFC', '\xFD', '\xFE',
'\xF7',
'\xF6', '\xF6',
'\xF6', '\xF5', '\xF4', '\xF4',
'\xF6', '\xF5', '\xF4', '\xF3', '\xF2', '\xF1', '\xF0', '\xF0'
};
TS_ASSERT_EQUALS(str.str(), expected);
int8_t i8;
int16_t i16;
int32_t i32;
int64_t i64;
read_little(str, i8);
TS_ASSERT_EQUALS(i8, -0x01);
read_little(str, i16);
TS_ASSERT_EQUALS(i16, -0x0102);
read(str, i32, endian::little);
TS_ASSERT_EQUALS(i32, -0x01020304);
read_little(str, i64);
TS_ASSERT_EQUALS(i64, -0x0102030405060708);
read_big(str, i8);
TS_ASSERT_EQUALS(i8, -0x09);
read_big(str, i16);
TS_ASSERT_EQUALS(i16, -0x090A);
read_big(str, i32);
TS_ASSERT_EQUALS(i32, -0x090A0B0C);
read(str, i64, endian::big);
TS_ASSERT_EQUALS(i64, -0x090A0B0C0D0E0F10);
TS_ASSERT(str); //Check if stream has failed
}
void test_float()
{
std::stringstream str(std::ios::in | std::ios::out | std::ios::binary);
//C99 has hexadecimal floating point literals, C++ doesn't...
const float fconst = std::stof("-0xCDEF01p-63"); //-1.46325e-012
const double dconst = std::stod("-0x1DEF0102030405p-375"); //-1.09484e-097
//We will be assuming IEEE 754 here
write_little(str, fconst);
write_little(str, dconst);
write_big (str, fconst);
write_big (str, dconst);
std::string expected{
'\x01', '\xEF', '\xCD', '\xAB',
'\x05', '\x04', '\x03', '\x02', '\x01', '\xEF', '\xCD', '\xAB',
'\xAB', '\xCD', '\xEF', '\x01',
'\xAB', '\xCD', '\xEF', '\x01', '\x02', '\x03', '\x04', '\x05'
};
TS_ASSERT_EQUALS(str.str(), expected);
float f;
double d;
read_little(str, f);
TS_ASSERT_EQUALS(f, fconst);
read_little(str, d);
TS_ASSERT_EQUALS(d, dconst);
read_big(str, f);
TS_ASSERT_EQUALS(f, fconst);
read_big(str, d);
TS_ASSERT_EQUALS(d, dconst);
TS_ASSERT(str); //Check if stream has failed
}
};

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/*
* libnbt++ - A library for the Minecraft Named Binary Tag format.
* Copyright (C) 2013, 2015 ljfa-ag
*
* This file is part of libnbt++.
*
* libnbt++ is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* libnbt++ is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with libnbt++. If not, see <http://www.gnu.org/licenses/>.
*/
//#include "text/json_formatter.h"
//#include "io/stream_reader.h"
#include <fstream>
#include <iostream>
#include <limits>
#include "nbt_tags.h"
using namespace nbt;
int main()
{
//TODO: Write that into a file
tag_compound comp{
{"byte", tag_byte(-128)},
{"short", tag_short(-32768)},
{"int", tag_int(-2147483648)},
{"long", tag_long(-9223372036854775808U)},
{"float 1", 1.618034f},
{"float 2", 6.626070e-34f},
{"float 3", 2.273737e+29f},
{"float 4", -std::numeric_limits<float>::infinity()},
{"float 5", std::numeric_limits<float>::quiet_NaN()},
{"double 1", 3.141592653589793},
{"double 2", 1.749899444387479e-193},
{"double 3", 2.850825855152578e+175},
{"double 4", -std::numeric_limits<double>::infinity()},
{"double 5", std::numeric_limits<double>::quiet_NaN()},
{"string 1", "Hello World! \u00E4\u00F6\u00FC\u00DF"},
{"string 2", "String with\nline breaks\tand tabs"},
{"byte array", tag_byte_array{12, 13, 14, 15, 16}},
{"int array", tag_int_array{0x0badc0de, -0x0dedbeef, 0x1badbabe}},
{"list (empty)", tag_list::of<tag_byte_array>({})},
{"list (float)", tag_list{2.0f, 1.0f, 0.5f, 0.25f}},
{"list (list)", tag_list::of<tag_list>({
{},
{4, 5, 6},
{tag_compound{{"egg", "ham"}}, tag_compound{{"foo", "bar"}}}
})},
{"list (compound)", tag_list::of<tag_compound>({
{{"created-on", 42}, {"names", tag_list{"Compound", "tag", "#0"}}},
{{"created-on", 45}, {"names", tag_list{"Compound", "tag", "#1"}}}
})},
{"compound (empty)", tag_compound()},
{"compound (nested)", tag_compound{
{"key", "value"},
{"key with \u00E4\u00F6\u00FC", tag_byte(-1)},
{"key with\nnewline and\ttab", tag_compound{}}
}},
{"null", nullptr}
};
std::cout << "----- default operator<<:\n";
std::cout << comp;
std::cout << "\n-----" << std::endl;
}

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/*
* libnbt++ - A library for the Minecraft Named Binary Tag format.
* Copyright (C) 2013, 2015 ljfa-ag
*
* This file is part of libnbt++.
*
* libnbt++ is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* libnbt++ is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with libnbt++. If not, see <http://www.gnu.org/licenses/>.
*/
#include <cxxtest/TestSuite.h>
#include "nbt_tags.h"
#include "nbt_visitor.h"
#include <algorithm>
#include <set>
#include <stdexcept>
using namespace nbt;
class nbttest : public CxxTest::TestSuite
{
public:
void test_tag()
{
TS_ASSERT(!is_valid_type(-1));
TS_ASSERT(!is_valid_type(0));
TS_ASSERT(is_valid_type(0, true));
TS_ASSERT(is_valid_type(1));
TS_ASSERT(is_valid_type(5, false));
TS_ASSERT(is_valid_type(7, true));
TS_ASSERT(is_valid_type(11));
TS_ASSERT(!is_valid_type(12));
//looks like TS_ASSERT_EQUALS can't handle abstract classes...
TS_ASSERT(*tag::create(tag_type::Byte) == tag_byte());
TS_ASSERT_THROWS(tag::create(tag_type::Null), std::invalid_argument);
TS_ASSERT_THROWS(tag::create(tag_type::End), std::invalid_argument);
tag_string tstr("foo");
auto cl = tstr.clone();
TS_ASSERT_EQUALS(tstr.get(), "foo");
TS_ASSERT(tstr == *cl);
cl = std::move(tstr).clone();
TS_ASSERT(*cl == tag_string("foo"));
TS_ASSERT(*cl != tag_string("bar"));
cl = std::move(*cl).move_clone();
TS_ASSERT(*cl == tag_string("foo"));
tstr.assign(tag_string("bar"));
TS_ASSERT_THROWS(tstr.assign(tag_int(6)), std::bad_cast);
TS_ASSERT_EQUALS(tstr.get(), "bar");
TS_ASSERT_EQUALS(&tstr.as<tag_string>(), &tstr);
TS_ASSERT_THROWS(tstr.as<tag_byte_array>(), std::bad_cast);
}
void test_get_type()
{
TS_ASSERT_EQUALS(tag_byte().get_type() , tag_type::Byte);
TS_ASSERT_EQUALS(tag_short().get_type() , tag_type::Short);
TS_ASSERT_EQUALS(tag_int().get_type() , tag_type::Int);
TS_ASSERT_EQUALS(tag_long().get_type() , tag_type::Long);
TS_ASSERT_EQUALS(tag_float().get_type() , tag_type::Float);
TS_ASSERT_EQUALS(tag_double().get_type() , tag_type::Double);
TS_ASSERT_EQUALS(tag_byte_array().get_type(), tag_type::Byte_Array);
TS_ASSERT_EQUALS(tag_string().get_type() , tag_type::String);
TS_ASSERT_EQUALS(tag_list().get_type() , tag_type::List);
TS_ASSERT_EQUALS(tag_compound().get_type() , tag_type::Compound);
TS_ASSERT_EQUALS(tag_int_array().get_type() , tag_type::Int_Array);
}
void test_tag_primitive()
{
tag_int tag(6);
TS_ASSERT_EQUALS(tag.get(), 6);
int& ref = tag;
ref = 12;
TS_ASSERT(tag == 12);
TS_ASSERT(tag != 6);
tag.set(24);
TS_ASSERT_EQUALS(ref, 24);
tag = 7;
TS_ASSERT_EQUALS(static_cast<int>(tag), 7);
TS_ASSERT_EQUALS(tag, tag_int(7));
TS_ASSERT_DIFFERS(tag_float(2.5), tag_float(-2.5));
TS_ASSERT_DIFFERS(tag_float(2.5), tag_double(2.5));
TS_ASSERT(tag_double() == 0.0);
TS_ASSERT_EQUALS(tag_byte(INT8_MAX).get(), INT8_MAX);
TS_ASSERT_EQUALS(tag_byte(INT8_MIN).get(), INT8_MIN);
TS_ASSERT_EQUALS(tag_short(INT16_MAX).get(), INT16_MAX);
TS_ASSERT_EQUALS(tag_short(INT16_MIN).get(), INT16_MIN);
TS_ASSERT_EQUALS(tag_int(INT32_MAX).get(), INT32_MAX);
TS_ASSERT_EQUALS(tag_int(INT32_MIN).get(), INT32_MIN);
TS_ASSERT_EQUALS(tag_long(INT64_MAX).get(), INT64_MAX);
TS_ASSERT_EQUALS(tag_long(INT64_MIN).get(), INT64_MIN);
}
void test_tag_string()
{
tag_string tag("foo");
TS_ASSERT_EQUALS(tag.get(), "foo");
std::string& ref = tag;
ref = "bar";
TS_ASSERT_EQUALS(tag.get(), "bar");
TS_ASSERT_DIFFERS(tag.get(), "foo");
tag.set("baz");
TS_ASSERT_EQUALS(ref, "baz");
tag = "quux";
TS_ASSERT_EQUALS("quux", static_cast<std::string>(tag));
std::string str("foo");
tag = str;
TS_ASSERT_EQUALS(tag.get(),str);
TS_ASSERT_EQUALS(tag_string(str).get(), "foo");
TS_ASSERT_EQUALS(tag_string().get(), "");
}
void test_tag_compound()
{
tag_compound comp{
{"foo", int16_t(12)},
{"bar", "baz"},
{"baz", -2.0},
{"list", tag_list{16, 17}}
};
//Test assignments and conversions, and exceptions on bad conversions
TS_ASSERT_EQUALS(comp["foo"].get_type(), tag_type::Short);
TS_ASSERT_EQUALS(static_cast<int32_t>(comp["foo"]), 12);
TS_ASSERT_EQUALS(static_cast<int16_t>(comp.at("foo")), int16_t(12));
TS_ASSERT(comp["foo"] == tag_short(12));
TS_ASSERT_THROWS(static_cast<int8_t>(comp["foo"]), std::bad_cast);
TS_ASSERT_THROWS(static_cast<std::string>(comp["foo"]), std::bad_cast);
TS_ASSERT_THROWS(comp["foo"] = 32, std::bad_cast);
comp["foo"] = int8_t(32);
TS_ASSERT_EQUALS(static_cast<int16_t>(comp["foo"]), 32);
TS_ASSERT_EQUALS(comp["bar"].get_type(), tag_type::String);
TS_ASSERT_EQUALS(static_cast<std::string>(comp["bar"]), "baz");
TS_ASSERT_THROWS(static_cast<int>(comp["bar"]), std::bad_cast);
TS_ASSERT_THROWS(comp["bar"] = -128, std::bad_cast);
comp["bar"] = "barbaz";
TS_ASSERT_EQUALS(static_cast<std::string>(comp["bar"]), "barbaz");
TS_ASSERT_EQUALS(comp["baz"].get_type(), tag_type::Double);
TS_ASSERT_EQUALS(static_cast<double>(comp["baz"]), -2.0);
TS_ASSERT_THROWS(static_cast<float>(comp["baz"]), std::bad_cast);
//Test nested access
comp["quux"] = tag_compound{{"Hello", "World"}, {"zero", 0}};
TS_ASSERT_EQUALS(comp.at("quux").get_type(), tag_type::Compound);
TS_ASSERT_EQUALS(static_cast<std::string>(comp["quux"].at("Hello")), "World");
TS_ASSERT_EQUALS(static_cast<std::string>(comp["quux"]["Hello"]), "World");
TS_ASSERT(comp["list"][1] == tag_int(17));
TS_ASSERT_THROWS(comp.at("nothing"), std::out_of_range);
//Test equality comparisons
tag_compound comp2{
{"foo", int16_t(32)},
{"bar", "barbaz"},
{"baz", -2.0},
{"quux", tag_compound{{"Hello", "World"}, {"zero", 0}}},
{"list", tag_list{16, 17}}
};
TS_ASSERT(comp == comp2);
TS_ASSERT(comp != dynamic_cast<const tag_compound&>(comp2["quux"].get()));
TS_ASSERT(comp != comp2["quux"]);
TS_ASSERT(dynamic_cast<const tag_compound&>(comp["quux"].get()) == comp2["quux"]);
//Test whether begin() through end() goes through all the keys and their
//values. The order of iteration is irrelevant there.
std::set<std::string> keys{"bar", "baz", "foo", "list", "quux"};
TS_ASSERT_EQUALS(comp2.size(), keys.size());
unsigned int i = 0;
for(const std::pair<const std::string, value>& val: comp2)
{
TS_ASSERT_LESS_THAN(i, comp2.size());
TS_ASSERT(keys.count(val.first));
TS_ASSERT(val.second == comp2[val.first]);
++i;
}
TS_ASSERT_EQUALS(i, comp2.size());
//Test erasing and has_key
TS_ASSERT_EQUALS(comp.erase("nothing"), false);
TS_ASSERT(comp.has_key("quux"));
TS_ASSERT(comp.has_key("quux", tag_type::Compound));
TS_ASSERT(!comp.has_key("quux", tag_type::List));
TS_ASSERT(!comp.has_key("quux", tag_type::Null));
TS_ASSERT_EQUALS(comp.erase("quux"), true);
TS_ASSERT(!comp.has_key("quux"));
TS_ASSERT(!comp.has_key("quux", tag_type::Compound));
TS_ASSERT(!comp.has_key("quux", tag_type::Null));
comp.clear();
TS_ASSERT(comp == tag_compound{});
//Test inserting values
TS_ASSERT_EQUALS(comp.put("abc", tag_double(6.0)).second, true);
TS_ASSERT_EQUALS(comp.put("abc", tag_long(-28)).second, false);
TS_ASSERT_EQUALS(comp.insert("ghi", tag_string("world")).second, true);
TS_ASSERT_EQUALS(comp.insert("abc", tag_string("hello")).second, false);
TS_ASSERT_EQUALS(comp.emplace<tag_string>("def", "ghi").second, true);
TS_ASSERT_EQUALS(comp.emplace<tag_byte>("def", 4).second, false);
TS_ASSERT((comp == tag_compound{
{"abc", tag_long(-28)},
{"def", tag_byte(4)},
{"ghi", tag_string("world")}
}));
}
void test_value()
{
value val1;
value val2(make_unique<tag_int>(42));
value val3(tag_int(42));
TS_ASSERT(!val1 && val2 && val3);
TS_ASSERT(val1 == val1);
TS_ASSERT(val1 != val2);
TS_ASSERT(val2 == val3);
TS_ASSERT(val3 == val3);
value valstr(tag_string("foo"));
TS_ASSERT_EQUALS(static_cast<std::string>(valstr), "foo");
valstr = "bar";
TS_ASSERT_THROWS(valstr = 5, std::bad_cast);
TS_ASSERT_EQUALS(static_cast<std::string>(valstr), "bar");
TS_ASSERT(valstr.as<tag_string>() == "bar");
TS_ASSERT_EQUALS(&valstr.as<tag>(), &valstr.get());
TS_ASSERT_THROWS(valstr.as<tag_float>(), std::bad_cast);
val1 = int64_t(42);
TS_ASSERT(val2 != val1);
TS_ASSERT_THROWS(val2 = int64_t(12), std::bad_cast);
TS_ASSERT_EQUALS(static_cast<int64_t>(val2), 42);
tag_int* ptr = dynamic_cast<tag_int*>(val2.get_ptr().get());
TS_ASSERT(*ptr == 42);
val2 = 52;
TS_ASSERT_EQUALS(static_cast<int32_t>(val2), 52);
TS_ASSERT(*ptr == 52);
TS_ASSERT_THROWS(val1["foo"], std::bad_cast);
TS_ASSERT_THROWS(val1.at("foo"), std::bad_cast);
val3 = 52;
TS_ASSERT(val2 == val3);
TS_ASSERT(val2.get_ptr() != val3.get_ptr());
val3 = std::move(val2);
TS_ASSERT(val3 == tag_int(52));
TS_ASSERT(!val2);
tag_int& tag = dynamic_cast<tag_int&>(val3.get());
TS_ASSERT(tag == tag_int(52));
tag = 21;
TS_ASSERT_EQUALS(static_cast<int32_t>(val3), 21);
val1.set_ptr(std::move(val3.get_ptr()));
TS_ASSERT(val1.as<tag_int>() == 21);
TS_ASSERT_EQUALS(val1.get_type(), tag_type::Int);
TS_ASSERT_EQUALS(val2.get_type(), tag_type::Null);
TS_ASSERT_EQUALS(val3.get_type(), tag_type::Null);
val2 = val1;
val1 = val3;
TS_ASSERT(!val1 && val2 && !val3);
TS_ASSERT(val1.get_ptr() == nullptr);
TS_ASSERT(val2.get() == tag_int(21));
TS_ASSERT(value(val1) == val1);
TS_ASSERT(value(val2) == val2);
val1 = val1;
val2 = val2;
TS_ASSERT(!val1);
TS_ASSERT(val1 == value_initializer(nullptr));
TS_ASSERT(val2 == tag_int(21));
val3 = tag_short(2);
TS_ASSERT_THROWS(val3 = tag_string("foo"), std::bad_cast);
TS_ASSERT(val3.get() == tag_short(2));
val2.set_ptr(make_unique<tag_string>("foo"));
TS_ASSERT(val2 == tag_string("foo"));
}
void test_tag_list()
{
tag_list list;
TS_ASSERT_EQUALS(list.el_type(), tag_type::Null);
TS_ASSERT_THROWS(list.push_back(value(nullptr)), std::invalid_argument);
list.emplace_back<tag_string>("foo");
TS_ASSERT_EQUALS(list.el_type(), tag_type::String);
list.push_back(tag_string("bar"));
TS_ASSERT_THROWS(list.push_back(tag_int(42)), std::invalid_argument);
TS_ASSERT_THROWS(list.emplace_back<tag_compound>(), std::invalid_argument);
TS_ASSERT((list == tag_list{"foo", "bar"}));
TS_ASSERT(list[0] == tag_string("foo"));
TS_ASSERT_EQUALS(static_cast<std::string>(list.at(1)), "bar");
TS_ASSERT_EQUALS(list.size(), 2u);
TS_ASSERT_THROWS(list.at(2), std::out_of_range);
TS_ASSERT_THROWS(list.at(-1), std::out_of_range);
list.set(1, value(tag_string("baz")));
TS_ASSERT_THROWS(list.set(1, value(nullptr)), std::invalid_argument);
TS_ASSERT_THROWS(list.set(1, value(tag_int(-42))), std::invalid_argument);
TS_ASSERT_EQUALS(static_cast<std::string>(list[1]), "baz");
TS_ASSERT_EQUALS(list.size(), 2u);
tag_string values[] = {"foo", "baz"};
TS_ASSERT_EQUALS(list.end() - list.begin(), int(list.size()));
TS_ASSERT(std::equal(list.begin(), list.end(), values));
list.pop_back();
TS_ASSERT(list == tag_list{"foo"});
TS_ASSERT(list == tag_list::of<tag_string>({"foo"}));
TS_ASSERT(tag_list::of<tag_string>({"foo"}) == tag_list{"foo"});
TS_ASSERT((list != tag_list{2, 3, 5, 7}));
list.clear();
TS_ASSERT_EQUALS(list.size(), 0u);
TS_ASSERT_EQUALS(list.el_type(), tag_type::String)
TS_ASSERT_THROWS(list.push_back(tag_short(25)), std::invalid_argument);
TS_ASSERT_THROWS(list.push_back(value(nullptr)), std::invalid_argument);
list.reset();
TS_ASSERT_EQUALS(list.el_type(), tag_type::Null);
list.emplace_back<tag_int>(17);
TS_ASSERT_EQUALS(list.el_type(), tag_type::Int);
list.reset(tag_type::Float);
TS_ASSERT_EQUALS(list.el_type(), tag_type::Float);
list.emplace_back<tag_float>(17.0f);
TS_ASSERT(list == tag_list({17.0f}));
TS_ASSERT(tag_list() != tag_list(tag_type::Int));
TS_ASSERT(tag_list() == tag_list());
TS_ASSERT(tag_list(tag_type::Short) != tag_list(tag_type::Int));
TS_ASSERT(tag_list(tag_type::Short) == tag_list(tag_type::Short));
tag_list short_list = tag_list::of<tag_short>({25, 36});
TS_ASSERT_EQUALS(short_list.el_type(), tag_type::Short);
TS_ASSERT((short_list == tag_list{int16_t(25), int16_t(36)}));
TS_ASSERT((short_list != tag_list{25, 36}));
TS_ASSERT((short_list == tag_list{value(tag_short(25)), value(tag_short(36))}));
TS_ASSERT_THROWS((tag_list{value(tag_byte(4)), value(tag_int(5))}), std::invalid_argument);
TS_ASSERT_THROWS((tag_list{value(nullptr), value(tag_int(6))}), std::invalid_argument);
TS_ASSERT_THROWS((tag_list{value(tag_int(7)), value(tag_int(8)), value(nullptr)}), std::invalid_argument);
TS_ASSERT_EQUALS((tag_list(std::initializer_list<value>{})).el_type(), tag_type::Null);
TS_ASSERT_EQUALS((tag_list{2, 3, 5, 7}).el_type(), tag_type::Int);
}
void test_tag_byte_array()
{
std::vector<int8_t> vec{1, 2, 127, -128};
tag_byte_array arr{1, 2, 127, -128};
TS_ASSERT_EQUALS(arr.size(), 4u);
TS_ASSERT(arr.at(0) == 1 && arr[1] == 2 && arr[2] == 127 && arr.at(3) == -128);
TS_ASSERT_THROWS(arr.at(-1), std::out_of_range);
TS_ASSERT_THROWS(arr.at(4), std::out_of_range);
TS_ASSERT(arr.get() == vec);
TS_ASSERT(arr == tag_byte_array(std::vector<int8_t>(vec)));
arr.push_back(42);
vec.push_back(42);
TS_ASSERT_EQUALS(arr.size(), 5u);
TS_ASSERT_EQUALS(arr.end() - arr.begin(), int(arr.size()));
TS_ASSERT(std::equal(arr.begin(), arr.end(), vec.begin()));
arr.pop_back();
arr.pop_back();
TS_ASSERT_EQUALS(arr.size(), 3u);
TS_ASSERT((arr == tag_byte_array{1, 2, 127}));
TS_ASSERT((arr != tag_int_array{1, 2, 127}));
TS_ASSERT((arr != tag_byte_array{1, 2, -1}));
arr.clear();
TS_ASSERT(arr == tag_byte_array());
}
void test_tag_int_array()
{
std::vector<int32_t> vec{100, 200, INT32_MAX, INT32_MIN};
tag_int_array arr{100, 200, INT32_MAX, INT32_MIN};
TS_ASSERT_EQUALS(arr.size(), 4u);
TS_ASSERT(arr.at(0) == 100 && arr[1] == 200 && arr[2] == INT32_MAX && arr.at(3) == INT32_MIN);
TS_ASSERT_THROWS(arr.at(-1), std::out_of_range);
TS_ASSERT_THROWS(arr.at(4), std::out_of_range);
TS_ASSERT(arr.get() == vec);
TS_ASSERT(arr == tag_int_array(std::vector<int32_t>(vec)));
arr.push_back(42);
vec.push_back(42);
TS_ASSERT_EQUALS(arr.size(), 5u);
TS_ASSERT_EQUALS(arr.end() - arr.begin(), int(arr.size()));
TS_ASSERT(std::equal(arr.begin(), arr.end(), vec.begin()));
arr.pop_back();
arr.pop_back();
TS_ASSERT_EQUALS(arr.size(), 3u);
TS_ASSERT((arr == tag_int_array{100, 200, INT32_MAX}));
TS_ASSERT((arr != tag_int_array{100, -56, -1}));
arr.clear();
TS_ASSERT(arr == tag_int_array());
}
void test_visitor()
{
struct : public nbt_visitor
{
tag_type visited = tag_type::Null;
void visit(tag_byte& tag) { visited = tag_type::Byte; }
void visit(tag_short& tag) { visited = tag_type::Short; }
void visit(tag_int& tag) { visited = tag_type::Int; }
void visit(tag_long& tag) { visited = tag_type::Long; }
void visit(tag_float& tag) { visited = tag_type::Float; }
void visit(tag_double& tag) { visited = tag_type::Double; }
void visit(tag_byte_array& tag) { visited = tag_type::Byte_Array; }
void visit(tag_string& tag) { visited = tag_type::String; }
void visit(tag_list& tag) { visited = tag_type::List; }
void visit(tag_compound& tag) { visited = tag_type::Compound; }
void visit(tag_int_array& tag) { visited = tag_type::Int_Array; }
} v;
tag_byte().accept(v);
TS_ASSERT_EQUALS(v.visited, tag_type::Byte);
tag_short().accept(v);
TS_ASSERT_EQUALS(v.visited, tag_type::Short);
tag_int().accept(v);
TS_ASSERT_EQUALS(v.visited, tag_type::Int);
tag_long().accept(v);
TS_ASSERT_EQUALS(v.visited, tag_type::Long);
tag_float().accept(v);
TS_ASSERT_EQUALS(v.visited, tag_type::Float);
tag_double().accept(v);
TS_ASSERT_EQUALS(v.visited, tag_type::Double);
tag_byte_array().accept(v);
TS_ASSERT_EQUALS(v.visited, tag_type::Byte_Array);
tag_string().accept(v);
TS_ASSERT_EQUALS(v.visited, tag_type::String);
tag_list().accept(v);
TS_ASSERT_EQUALS(v.visited, tag_type::List);
tag_compound().accept(v);
TS_ASSERT_EQUALS(v.visited, tag_type::Compound);
tag_int_array().accept(v);
TS_ASSERT_EQUALS(v.visited, tag_type::Int_Array);
}
};

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/*
* libnbt++ - A library for the Minecraft Named Binary Tag format.
* Copyright (C) 2013, 2015 ljfa-ag
*
* This file is part of libnbt++.
*
* libnbt++ is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* libnbt++ is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with libnbt++. If not, see <http://www.gnu.org/licenses/>.
*/
#include <cxxtest/TestSuite.h>
#include "io/stream_reader.h"
#include "nbt_tags.h"
#include <iostream>
#include <fstream>
#include <sstream>
using namespace nbt;
class read_test : public CxxTest::TestSuite
{
public:
void test_stream_reader_big()
{
std::string input{
1, //tag_type::Byte
0, //tag_type::End
11, //tag_type::Int_Array
0x0a, 0x0b, 0x0c, 0x0d, //0x0a0b0c0d in Big Endian
0x00, 0x06, //String length in Big Endian
'f', 'o', 'o', 'b', 'a', 'r',
0 //tag_type::End (invalid with allow_end = false)
};
std::istringstream is(input);
nbt::io::stream_reader reader(is);
TS_ASSERT_EQUALS(&reader.get_istr(), &is);
TS_ASSERT_EQUALS(reader.get_endian(), endian::big);
TS_ASSERT_EQUALS(reader.read_type(), tag_type::Byte);
TS_ASSERT_EQUALS(reader.read_type(true), tag_type::End);
TS_ASSERT_EQUALS(reader.read_type(false), tag_type::Int_Array);
int32_t i;
reader.read_num(i);
TS_ASSERT_EQUALS(i, 0x0a0b0c0d);
TS_ASSERT_EQUALS(reader.read_string(), "foobar");
TS_ASSERT_THROWS(reader.read_type(false), io::input_error);
TS_ASSERT(!is);
is.clear();
//Test for invalid tag type 12
is.str("\x0c");
TS_ASSERT_THROWS(reader.read_type(), io::input_error);
TS_ASSERT(!is);
is.clear();
//Test for unexpcted EOF on numbers (input too short for int32_t)
is.str("\x03\x04");
reader.read_num(i);
TS_ASSERT(!is);
}
void test_stream_reader_little()
{
std::string input{
0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, //0x0d0c0b0a09080706 in Little Endian
0x06, 0x00, //String length in Little Endian
'f', 'o', 'o', 'b', 'a', 'r',
0x10, 0x00, //String length (intentionally too large)
'a', 'b', 'c', 'd' //unexpected EOF
};
std::istringstream is(input);
nbt::io::stream_reader reader(is, endian::little);
TS_ASSERT_EQUALS(reader.get_endian(), endian::little);
int64_t i;
reader.read_num(i);
TS_ASSERT_EQUALS(i, 0x0d0c0b0a09080706);
TS_ASSERT_EQUALS(reader.read_string(), "foobar");
TS_ASSERT_THROWS(reader.read_string(), io::input_error);
TS_ASSERT(!is);
}
//Tests if comp equals an extended variant of Notch's bigtest NBT
void verify_bigtest_structure(const tag_compound& comp)
{
TS_ASSERT_EQUALS(comp.size(), 13u);
TS_ASSERT(comp.at("byteTest") == tag_byte(127));
TS_ASSERT(comp.at("shortTest") == tag_short(32767));
TS_ASSERT(comp.at("intTest") == tag_int(2147483647));
TS_ASSERT(comp.at("longTest") == tag_long(9223372036854775807));
TS_ASSERT(comp.at("floatTest") == tag_float(std::stof("0xff1832p-25"))); //0.4982315
TS_ASSERT(comp.at("doubleTest") == tag_double(std::stod("0x1f8f6bbbff6a5ep-54"))); //0.493128713218231
//From bigtest.nbt: "the first 1000 values of (n*n*255+n*7)%100, starting with n=0 (0, 62, 34, 16, 8, ...)"
tag_byte_array byteArrayTest;
for(int n = 0; n < 1000; ++n)
byteArrayTest.push_back((n*n*255 + n*7) % 100);
TS_ASSERT(comp.at("byteArrayTest (the first 1000 values of (n*n*255+n*7)%100, starting with n=0 (0, 62, 34, 16, 8, ...))") == byteArrayTest);
TS_ASSERT(comp.at("stringTest") == tag_string("HELLO WORLD THIS IS A TEST STRING \u00C5\u00C4\u00D6!"));
TS_ASSERT(comp.at("listTest (compound)") == tag_list::of<tag_compound>({
{{"created-on", tag_long(1264099775885)}, {"name", "Compound tag #0"}},
{{"created-on", tag_long(1264099775885)}, {"name", "Compound tag #1"}}
}));
TS_ASSERT(comp.at("listTest (long)") == tag_list::of<tag_long>({11, 12, 13, 14, 15}));
TS_ASSERT(comp.at("listTest (end)") == tag_list());
TS_ASSERT((comp.at("nested compound test") == tag_compound{
{"egg", tag_compound{{"value", 0.5f}, {"name", "Eggbert"}}},
{"ham", tag_compound{{"value", 0.75f}, {"name", "Hampus"}}}
}));
TS_ASSERT(comp.at("intArrayTest") == tag_int_array(
{0x00010203, 0x04050607, 0x08090a0b, 0x0c0d0e0f}));
}
void test_read_bigtest()
{
//Uses an extended variant of Notch's original bigtest file
std::ifstream file("bigtest_uncompr", std::ios::binary);
TS_ASSERT(file);
auto pair = nbt::io::read_compound(file);
TS_ASSERT_EQUALS(pair.first, "Level");
verify_bigtest_structure(*pair.second);
}
void test_read_littletest()
{
//Same as bigtest, but little endian
std::ifstream file("littletest_uncompr", std::ios::binary);
TS_ASSERT(file);
auto pair = nbt::io::read_compound(file, endian::little);
TS_ASSERT_EQUALS(pair.first, "Level");
TS_ASSERT_EQUALS(pair.second->get_type(), tag_type::Compound);
verify_bigtest_structure(*pair.second);
}
void test_read_errors()
{
std::ifstream file;
nbt::io::stream_reader reader(file);
//EOF within a tag_double payload
file.open("errortest_eof1", std::ios::binary);
TS_ASSERT(file);
TS_ASSERT_THROWS(reader.read_tag(), io::input_error);
TS_ASSERT(!file);
//EOF within a key in a compound
file.close();
file.open("errortest_eof2", std::ios::binary);
TS_ASSERT(file);
TS_ASSERT_THROWS(reader.read_tag(), io::input_error);
TS_ASSERT(!file);
//Missing tag_end
file.close();
file.open("errortest_noend", std::ios::binary);
TS_ASSERT(file);
TS_ASSERT_THROWS(reader.read_tag(), io::input_error);
TS_ASSERT(!file);
//Negative list length
file.close();
file.open("errortest_neg_length", std::ios::binary);
TS_ASSERT(file);
TS_ASSERT_THROWS(reader.read_tag(), io::input_error);
TS_ASSERT(!file);
}
void test_read_misc()
{
std::ifstream file;
nbt::io::stream_reader reader(file);
//Toplevel tag other than compound
file.open("toplevel_string", std::ios::binary);
TS_ASSERT(file);
TS_ASSERT_THROWS(reader.read_compound(), io::input_error);
TS_ASSERT(!file);
//Rewind and try again with read_tag
file.clear();
TS_ASSERT(file.seekg(0));
auto pair = reader.read_tag();
TS_ASSERT_EQUALS(pair.first, "Test (toplevel tag_string)");
TS_ASSERT(*pair.second == tag_string(
"Even though unprovided for by NBT, the library should also handle "
"the case where the file consists of something else than tag_compound"));
}
};

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/*
* libnbt++ - A library for the Minecraft Named Binary Tag format.
* Copyright (C) 2013, 2015 ljfa-ag
*
* This file is part of libnbt++.
*
* libnbt++ is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* libnbt++ is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with libnbt++. If not, see <http://www.gnu.org/licenses/>.
*/
#include <cxxtest/TestSuite.h>
#include "io/stream_writer.h"
#include "io/stream_reader.h"
#include "nbt_tags.h"
#include <iostream>
#include <fstream>
#include <sstream>
using namespace nbt;
class read_test : public CxxTest::TestSuite
{
public:
void test_stream_writer_big()
{
std::ostringstream os;
nbt::io::stream_writer writer(os);
TS_ASSERT_EQUALS(&writer.get_ostr(), &os);
TS_ASSERT_EQUALS(writer.get_endian(), endian::big);
writer.write_type(tag_type::End);
writer.write_type(tag_type::Long);
writer.write_type(tag_type::Int_Array);
writer.write_num(int64_t(0x0102030405060708));
writer.write_string("foobar");
TS_ASSERT(os);
std::string expected{
0, //tag_type::End
4, //tag_type::Long
11, //tag_type::Int_Array
0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, //0x0102030405060708 in Big Endian
0x00, 0x06, //string length in Big Endian
'f', 'o', 'o', 'b', 'a', 'r'
};
TS_ASSERT_EQUALS(os.str(), expected);
//too long for NBT
TS_ASSERT_THROWS(writer.write_string(std::string(65536, '.')), std::length_error);
TS_ASSERT(!os);
}
void test_stream_writer_little()
{
std::ostringstream os;
nbt::io::stream_writer writer(os, endian::little);
TS_ASSERT_EQUALS(writer.get_endian(), endian::little);
writer.write_num(int32_t(0x0a0b0c0d));
writer.write_string("foobar");
TS_ASSERT(os);
std::string expected{
0x0d, 0x0c, 0x0b, 0x0a, //0x0a0b0c0d in Little Endian
0x06, 0x00, //string length in Little Endian
'f', 'o', 'o', 'b', 'a', 'r'
};
TS_ASSERT_EQUALS(os.str(), expected);
TS_ASSERT_THROWS(writer.write_string(std::string(65536, '.')), std::length_error);
TS_ASSERT(!os);
}
void test_write_payload_big()
{
std::ostringstream os;
nbt::io::stream_writer writer(os);
//tag_primitive
writer.write_payload(tag_byte(127));
writer.write_payload(tag_short(32767));
writer.write_payload(tag_int(2147483647));
writer.write_payload(tag_long(9223372036854775807));
//Same values as in endian_str_test
writer.write_payload(tag_float(std::stof("-0xCDEF01p-63")));
writer.write_payload(tag_double(std::stod("-0x1DEF0102030405p-375")));
TS_ASSERT_EQUALS(os.str(), (std::string{
'\x7F',
'\x7F', '\xFF',
'\x7F', '\xFF', '\xFF', '\xFF',
'\x7F', '\xFF', '\xFF', '\xFF', '\xFF', '\xFF', '\xFF', '\xFF',
'\xAB', '\xCD', '\xEF', '\x01',
'\xAB', '\xCD', '\xEF', '\x01', '\x02', '\x03', '\x04', '\x05'
}));
os.str(""); //clear and reuse the stream
//tag_string
writer.write_payload(tag_string("barbaz"));
TS_ASSERT_EQUALS(os.str(), (std::string{
0x00, 0x06, //string length in Big Endian
'b', 'a', 'r', 'b', 'a', 'z'
}));
TS_ASSERT_THROWS(writer.write_payload(tag_string(std::string(65536, '.'))), std::length_error);
TS_ASSERT(!os);
os.clear();
//tag_byte_array
os.str("");
writer.write_payload(tag_byte_array{0, 1, 127, -128, -127});
TS_ASSERT_EQUALS(os.str(), (std::string{
0x00, 0x00, 0x00, 0x05, //length in Big Endian
0, 1, 127, -128, -127
}));
os.str("");
//tag_int_array
writer.write_payload(tag_int_array{0x01020304, 0x05060708, 0x090a0b0c});
TS_ASSERT_EQUALS(os.str(), (std::string{
0x00, 0x00, 0x00, 0x03, //length in Big Endian
0x01, 0x02, 0x03, 0x04,
0x05, 0x06, 0x07, 0x08,
0x09, 0x0a, 0x0b, 0x0c
}));
os.str("");
//tag_list
writer.write_payload(tag_list()); //empty list with undetermined type, should be written as list of tag_end
writer.write_payload(tag_list(tag_type::Int)); //empty list of tag_int
writer.write_payload(tag_list{ //nested list
tag_list::of<tag_short>({0x3456, 0x789a}),
tag_list::of<tag_byte>({0x0a, 0x0b, 0x0c, 0x0d})
});
TS_ASSERT_EQUALS(os.str(), (std::string{
0, //tag_type::End
0x00, 0x00, 0x00, 0x00, //length
3, //tag_type::Int
0x00, 0x00, 0x00, 0x00, //length
9, //tag_type::List
0x00, 0x00, 0x00, 0x02, //length
//list 0
2, //tag_type::Short
0x00, 0x00, 0x00, 0x02, //length
'\x34', '\x56',
'\x78', '\x9a',
//list 1
1, //tag_type::Byte
0x00, 0x00, 0x00, 0x04, //length
0x0a,
0x0b,
0x0c,
0x0d
}));
os.str("");
//tag_compound
/* Testing if writing compounds works properly is problematic because the
order of the tags is not guaranteed. However with only two tags in a
compound we only have two possible orderings.
See below for a more thorough test that uses writing and re-reading. */
writer.write_payload(tag_compound{});
writer.write_payload(tag_compound{
{"foo", "quux"},
{"bar", tag_int(0x789abcde)}
});
std::string endtag{0x00};
std::string subtag1{
8, //tag_type::String
0x00, 0x03, //key length
'f', 'o', 'o',
0x00, 0x04, //string length
'q', 'u', 'u', 'x'
};
std::string subtag2{
3, //tag_type::Int
0x00, 0x03, //key length
'b', 'a', 'r',
'\x78', '\x9A', '\xBC', '\xDE'
};
TS_ASSERT(os.str() == endtag + subtag1 + subtag2 + endtag
|| os.str() == endtag + subtag2 + subtag1 + endtag);
//Now for write_tag:
os.str("");
writer.write_tag("foo", tag_string("quux"));
TS_ASSERT_EQUALS(os.str(), subtag1);
TS_ASSERT(os);
//too long key for NBT
TS_ASSERT_THROWS(writer.write_tag(std::string(65536, '.'), tag_long(-1)), std::length_error);
TS_ASSERT(!os);
}
void test_write_bigtest()
{
/* Like already stated above, because no order is guaranteed for
tag_compound, we cannot simply test it by writing into a stream and directly
comparing the output to a reference value.
Instead, we assume that reading already works correctly and re-read the
written tag.
Smaller-grained tests are already done above. */
std::ifstream file("bigtest_uncompr", std::ios::binary);
const auto orig_pair = io::read_compound(file);
std::stringstream sstr;
//Write into stream in Big Endian
io::write_tag(orig_pair.first, *orig_pair.second, sstr);
TS_ASSERT(sstr);
//Read from stream in Big Endian and compare
auto written_pair = io::read_compound(sstr);
TS_ASSERT_EQUALS(orig_pair.first, written_pair.first);
TS_ASSERT(*orig_pair.second == *written_pair.second);
sstr.str(""); //Reset and reuse stream
//Write into stream in Little Endian
io::write_tag(orig_pair.first, *orig_pair.second, sstr, endian::little);
TS_ASSERT(sstr);
//Read from stream in Little Endian and compare
written_pair = io::read_compound(sstr, endian::little);
TS_ASSERT_EQUALS(orig_pair.first, written_pair.first);
TS_ASSERT(*orig_pair.second == *written_pair.second);
}
};

2
logic/CMakeLists.txt
View File

@ -329,7 +329,7 @@ else(UNIX)
endif(UNIX)
# Link
target_link_libraries(MultiMC_logic xz-embedded unpack200 iconfix libUtil LogicalGui ${QUAZIP_LIBRARIES}
target_link_libraries(MultiMC_logic xz-embedded unpack200 iconfix libUtil LogicalGui ${QUAZIP_LIBRARIES} nbt++
Qt5::Core Qt5::Xml Qt5::Widgets Qt5::Network Qt5::Concurrent
${ZLIB_LIBRARIES} ${MultiMC_LINK_ADDITIONAL_LIBS})

126
logic/minecraft/World.cpp
View File

@ -15,9 +15,16 @@
#include <QDir>
#include <QString>
#include <QDebug>
#include "World.h"
#include <pathutils.h>
#include "GZip.h"
#include <sstream>
#include <io/stream_reader.h>
#include <tag_string.h>
#include <tag_primitive.h>
World::World(const QFileInfo &file)
{
repath(file);
@ -26,8 +33,117 @@ World::World(const QFileInfo &file)
void World::repath(const QFileInfo &file)
{
m_file = file;
m_name = file.fileName();
is_valid = file.isDir() && QDir(file.filePath()).exists("level.dat");
m_folderName = file.fileName();
QDir worldDir(file.filePath());
is_valid = file.isDir() && worldDir.exists("level.dat");
if(!is_valid)
{
return;
}
auto fullFilePath = worldDir.absoluteFilePath("level.dat");
QFile f(fullFilePath);
is_valid = f.open(QIODevice::ReadOnly);
if(!is_valid)
{
return;
}
QByteArray output;
is_valid = GZip::inflate(f.readAll(), output);
if(!is_valid)
{
return;
}
f.close();
auto read_string = [](nbt::value& parent, const char * name, const QString & fallback = QString()) -> QString
{
try
{
auto &namedValue = parent.at(name);
if(namedValue.get_type() != nbt::tag_type::String)
{
return fallback;
}
auto & tag_str = namedValue.as<nbt::tag_string>();
return QString::fromStdString(tag_str.get());
}
catch(std::out_of_range e)
{
// fallback for old world formats
return fallback;
}
};
auto read_long = [](nbt::value& parent, const char * name, const int64_t & fallback = 0) -> int64_t
{
try
{
auto &namedValue = parent.at(name);
if(namedValue.get_type() != nbt::tag_type::Long)
{
return fallback;
}
auto & tag_str = namedValue.as<nbt::tag_long>();
return tag_str.get();
}
catch(std::out_of_range e)
{
// fallback for old world formats
return fallback;
}
};
try
{
std::istringstream foo(std::string(output.constData(), output.size()));
auto pair = nbt::io::read_compound(foo);
is_valid = pair.first == "";
if(!is_valid)
{
return;
}
std::ostringstream ostr;
is_valid = pair.second != nullptr;
if(!is_valid)
{
qDebug() << "FAIL~!!!";
return;
}
auto &val = pair.second->at("Data");
is_valid = val.get_type() == nbt::tag_type::Compound;
if(!is_valid)
return;
m_actualName = read_string(val, "LevelName", m_folderName);
int64_t temp = read_long(val, "LastPlayed", 0);
if(temp == 0)
{
QFileInfo finfo(fullFilePath);
m_lastPlayed = finfo.lastModified();
}
else
{
m_lastPlayed = QDateTime::fromMSecsSinceEpoch(temp);
}
m_randomSeed = read_long(val, "RandomSeed", 0);
qDebug() << "World Name:" << m_actualName;
qDebug() << "Last Played:" << m_lastPlayed.toString();
qDebug() << "Seed:" << m_randomSeed;
}
catch (nbt::io::input_error e)
{
qWarning() << "Unable to load" << m_folderName << ":" << e.what();
is_valid = false;
return;
}
}
bool World::replace(World &with)
@ -37,7 +153,7 @@ bool World::replace(World &with)
bool success = copyPath(with.m_file.filePath(), m_file.path());
if (success)
{
m_name = with.m_name;
m_folderName = with.m_folderName;
m_file.refresh();
}
return success;
@ -64,9 +180,9 @@ bool World::destroy()
bool World::operator==(const World &other) const
{
return is_valid == other.is_valid && name() == other.name();
return is_valid == other.is_valid && folderName() == other.folderName();
}
bool World::strongCompare(const World &other) const
{
return is_valid == other.is_valid && name() == other.name();
return is_valid == other.is_valid && folderName() == other.folderName();
}

24
logic/minecraft/World.h
View File

@ -15,20 +15,33 @@
#pragma once
#include <QFileInfo>
#include <QDateTime>
class World
{
public:
World(const QFileInfo &file);
QString folderName() const
{
return m_folderName;
}
QString name() const
{
return m_name;
return m_actualName;
}
QDateTime lastPlayed() const
{
return m_lastPlayed;
}
int64_t seed() const
{
return m_randomSeed;
}
bool isValid() const
{
return is_valid;
}
// // delete all the files of this world
// delete all the files of this world
bool destroy();
// replace this world with a copy of the other
bool replace(World &with);
@ -42,6 +55,9 @@ public:
protected:
QFileInfo m_file;
QString m_name;
bool is_valid;
QString m_folderName;
QString m_actualName;
QDateTime m_lastPlayed;
int64_t m_randomSeed = 0;
bool is_valid = false;
};

34
logic/minecraft/WorldList.cpp
View File

@ -66,7 +66,7 @@ void WorldList::internalSort(QList<World> &what)
{
auto predicate = [](const World &left, const World &right)
{
return left.name().localeAwareCompare(right.name()) < 0;
return left.folderName().localeAwareCompare(right.folderName()) < 0;
};
std::sort(what.begin(), what.end(), predicate);
}
@ -142,7 +142,7 @@ bool WorldList::deleteWorlds(int first, int last)
int WorldList::columnCount(const QModelIndex &parent) const
{
return 1;
return 2;
}
QVariant WorldList::data(const QModelIndex &index, int role) const
@ -156,20 +156,42 @@ QVariant WorldList::data(const QModelIndex &index, int role) const
if (row < 0 || row >= worlds.size())
return QVariant();
auto & world = worlds[row];
switch (role)
{
case Qt::DisplayRole:
switch (column)
{
case NameColumn:
return worlds[row].name();
return world.name();
case LastPlayedColumn:
return world.lastPlayed();
default:
return QVariant();
}
case Qt::ToolTipRole:
return worlds[row].name();
{
return world.folderName();
}
case FolderRole:
{
return QDir::toNativeSeparators(dir().absoluteFilePath(world.folderName()));
}
case SeedRole:
{
return qVariantFromValue<qlonglong>(world.seed());
}
case NameRole:
{
return world.name();
}
case LastPlayedRole:
{
return world.lastPlayed();
}
default:
return QVariant();
}
@ -184,6 +206,8 @@ QVariant WorldList::headerData(int section, Qt::Orientation orientation, int rol
{
case NameColumn:
return tr("Name");
case LastPlayedColumn:
return tr("Last Played");
default:
return QVariant();
}
@ -193,6 +217,8 @@ QVariant WorldList::headerData(int section, Qt::Orientation orientation, int rol
{
case NameColumn:
return tr("The name of the world.");
case LastPlayedColumn:
return tr("Date and time the world was last played.");
default:
return QVariant();
}

120
logic/minecraft/WorldList.h
View File

@ -21,79 +21,93 @@
#include <QAbstractListModel>
#include "minecraft/World.h"
#include "multimc_logic_export.h"
class QFileSystemWatcher;
class WorldList : public QAbstractListModel
class MULTIMC_LOGIC_EXPORT WorldList : public QAbstractListModel
{
Q_OBJECT
Q_OBJECT
public:
enum Columns {
NameColumn
};
enum Columns
{
NameColumn,
LastPlayedColumn
};
WorldList ( const QString &dir );
enum Roles
{
FolderRole = Qt::UserRole + 1,
SeedRole,
NameRole,
LastPlayedRole
};
virtual QVariant data ( const QModelIndex &index, int role = Qt::DisplayRole ) const;
WorldList(const QString &dir);
virtual int rowCount ( const QModelIndex &parent = QModelIndex() ) const {
return size();
}
;
virtual QVariant headerData ( int section, Qt::Orientation orientation,
int role = Qt::DisplayRole ) const;
virtual int columnCount ( const QModelIndex &parent ) const;
virtual QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const;
size_t size() const {
return worlds.size();
}
;
bool empty() const {
return size() == 0;
}
World &operator[] ( size_t index ) {
return worlds[index];
}
virtual int rowCount(const QModelIndex &parent = QModelIndex()) const
{
return size();
};
virtual QVariant headerData(int section, Qt::Orientation orientation,
int role = Qt::DisplayRole) const;
virtual int columnCount(const QModelIndex &parent) const;
/// Reloads the mod list and returns true if the list changed.
virtual bool update();
size_t size() const
{
return worlds.size();
};
bool empty() const
{
return size() == 0;
}
World &operator[](size_t index)
{
return worlds[index];
}
/// Deletes the mod at the given index.
virtual bool deleteWorld ( int index );
/// Reloads the mod list and returns true if the list changed.
virtual bool update();
/// Deletes all the selected mods
virtual bool deleteWorlds ( int first, int last );
/// Deletes the mod at the given index.
virtual bool deleteWorld(int index);
/// get data for drag action
virtual QMimeData *mimeData ( const QModelIndexList &indexes ) const;
/// get the supported mime types
virtual QStringList mimeTypes() const;
/// Deletes all the selected mods
virtual bool deleteWorlds(int first, int last);
void startWatching();
void stopWatching();
/// get data for drag action
virtual QMimeData *mimeData(const QModelIndexList &indexes) const;
/// get the supported mime types
virtual QStringList mimeTypes() const;
virtual bool isValid();
void startWatching();
void stopWatching();
QDir dir() {
return m_dir;
}
virtual bool isValid();
const QList<World> & allWorlds() {
return worlds;
}
QDir dir() const
{
return m_dir;
}
const QList<World> &allWorlds() const
{
return worlds;
}
private:
void internalSort ( QList<World> & what );
private
slots:
void directoryChanged ( QString path );
void internalSort(QList<World> &what);
private slots:
void directoryChanged(QString path);
signals:
void changed();
void changed();
protected:
QFileSystemWatcher *m_watcher;
bool is_watching;
QDir m_dir;
QList<World> worlds;
QFileSystemWatcher *m_watcher;
bool is_watching;
QDir m_dir;
QList<World> worlds;
};