Merge pull request #30945 from RevoluPowered/feature/assimp_update

Updated assimp to commit 1d565b0 with iFire

1 files changed, 0 insertions, 1834 deletions

diff --git a/thirdparty/assimp/code/FIReader.cpp b/thirdparty/assimp/code/FIReader.cpp
deleted file mode 100644
index 2116316ca3..0000000000
--- a/thirdparty/assimp/code/FIReader.cpp
+++ /dev/null
@@ -1,1834 +0,0 @@
-/*
-Open Asset Import Library (assimp)
-----------------------------------------------------------------------
-
-Copyright (c) 2006-2019, assimp team
-
-
-All rights reserved.
-
-Redistribution and use of this software in source and binary forms,
-with or without modification, are permitted provided that the
-following conditions are met:
-
-* Redistributions of source code must retain the above
-copyright notice, this list of conditions and the
-following disclaimer.
-
-* Redistributions in binary form must reproduce the above
-copyright notice, this list of conditions and the
-following disclaimer in the documentation and/or other
-materials provided with the distribution.
-
-* Neither the name of the assimp team, nor the names of its
-contributors may be used to endorse or promote products
-derived from this software without specific prior
-written permission of the assimp team.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-----------------------------------------------------------------------
-*/
-/// \file   FIReader.cpp
-/// \brief  Reader for Fast Infoset encoded binary XML files.
-/// \date   2017
-/// \author Patrick Daehne
-
-#ifndef ASSIMP_BUILD_NO_X3D_IMPORTER
-
-#include "FIReader.hpp"
-#include <assimp/StringUtils.h>
-
-// Workaround for issue #1361
-// https://github.com/assimp/assimp/issues/1361
-#ifdef __ANDROID__
-#  define _GLIBCXX_USE_C99 1
-#endif
-
-#include <assimp/Exceptional.h>
-#include <assimp/IOStream.hpp>
-#include <assimp/types.h>
-#include <assimp/MemoryIOWrapper.h>
-#include <assimp/irrXMLWrapper.h>
-#include "../contrib/utf8cpp/source/utf8.h"
-#include <assimp/fast_atof.h>
-#include <stack>
-#include <map>
-#include <iostream>
-#include <sstream>
-#include <iomanip>
-
-namespace Assimp {
-
-static const std::string parseErrorMessage = "Fast Infoset parse error";
-
-static const char *xmlDeclarations[] = {
-    "<?xml encoding='finf'?>",
-    "<?xml encoding='finf' standalone='yes'?>",
-    "<?xml encoding='finf' standalone='no'?>",
-    "<?xml version='1.0' encoding='finf'?>",
-    "<?xml version='1.0' encoding='finf' standalone='yes'?>",
-    "<?xml version='1.0' encoding='finf' standalone='no'?>",
-    "<?xml version='1.1' encoding='finf'?>",
-    "<?xml version='1.1' encoding='finf' standalone='yes'?>",
-    "<?xml version='1.1' encoding='finf' standalone='no'?>"
-};
-
-static size_t parseMagic(const uint8_t *data, const uint8_t *dataEnd) {
-    if (dataEnd - data < 4) {
-        return 0;
-    }
-    uint32_t magic = (data[0] << 24) | (data[1] << 16) | (data[2] << 8) | data[3];
-    switch (magic) {
-    case 0xe0000001:
-        return 4;
-    case 0x3c3f786d: // "<?xm"
-        {
-            size_t xmlDeclarationsLength = sizeof(xmlDeclarations) / sizeof(xmlDeclarations[0]);
-            for (size_t i = 0; i < xmlDeclarationsLength; ++i) {
-                auto xmlDeclaration = xmlDeclarations[i];
-                ptrdiff_t xmlDeclarationLength = strlen(xmlDeclaration);
-                if ((dataEnd - data >= xmlDeclarationLength) && (memcmp(xmlDeclaration, data, xmlDeclarationLength) == 0)) {
-                    data += xmlDeclarationLength;
-                    if (dataEnd - data < 4) {
-                        return 0;
-                    }
-                    magic = (data[0] << 24) | (data[1] << 16) | (data[2] << 8) | data[3];
-                    return magic == 0xe0000001 ? xmlDeclarationLength + 4 : 0;
-                }
-            }
-            return 0;
-        }
-    default:
-        return 0;
-    }
-}
-
-static std::string parseUTF8String(const uint8_t *data, size_t len) {
-    return std::string((char*)data, len);
-}
-
-static std::string parseUTF16String(const uint8_t *data, size_t len) {
-    if (len & 1) {
-        throw DeadlyImportError(parseErrorMessage);
-    }
-    size_t numShorts = len / 2;
-    std::vector<short> utf16;
-    utf16.reserve(numShorts);
-    for (size_t i = 0; i < numShorts; ++i) {
-        short v = (data[0] << 8) | data[1];
-        utf16.push_back(v);
-        data += 2;
-    }
-    std::string result;
-    utf8::utf16to8(utf16.begin(), utf16.end(), back_inserter(result));
-    return result;
-}
-
-struct FIStringValueImpl: public FIStringValue {
-    inline FIStringValueImpl(std::string &&value_) { value = std::move(value_); }
-    virtual const std::string &toString() const /*override*/ { return value; }
-};
-
-std::shared_ptr<FIStringValue> FIStringValue::create(std::string &&value) {
-    return std::make_shared<FIStringValueImpl>(std::move(value));
-}
-
-struct FIHexValueImpl: public FIHexValue {
-    mutable std::string strValue;
-    mutable bool strValueValid;
-    inline FIHexValueImpl(std::vector<uint8_t> &&value_):  strValueValid(false) { value = std::move(value_); }
-    virtual const std::string &toString() const /*override*/ {
-        if (!strValueValid) {
-            strValueValid = true;
-            std::ostringstream os;
-            os << std::hex << std::uppercase << std::setfill('0');
-            std::for_each(value.begin(), value.end(), [&](uint8_t c) { os << std::setw(2) << static_cast<int>(c); });
-            strValue = os.str();
-        }
-        return strValue;
-    };
-};
-
-std::shared_ptr<FIHexValue> FIHexValue::create(std::vector<uint8_t> &&value) {
-    return std::make_shared<FIHexValueImpl>(std::move(value));
-}
-
-struct FIBase64ValueImpl: public FIBase64Value {
-    mutable std::string strValue;
-    mutable bool strValueValid;
-    inline FIBase64ValueImpl(std::vector<uint8_t> &&value_): strValueValid(false) { value = std::move(value_); }
-    virtual const std::string &toString() const /*override*/ {
-        if (!strValueValid) {
-            strValueValid = true;
-            std::ostringstream os;
-            uint8_t c1 = 0, c2;
-            int imod3 = 0;
-            std::vector<uint8_t>::size_type valueSize = value.size();
-            for (std::vector<uint8_t>::size_type i = 0; i < valueSize; ++i) {
-                c2 = value[i];
-                switch (imod3) {
-                case 0:
-                    os << basis_64[c2 >> 2];
-                    imod3 = 1;
-                    break;
-                case 1:
-                    os << basis_64[((c1 & 0x03) << 4) | ((c2 & 0xf0) >> 4)];
-                    imod3 = 2;
-                    break;
-                case 2:
-                    os << basis_64[((c1 & 0x0f) << 2) | ((c2 & 0xc0) >> 6)] << basis_64[c2 & 0x3f];
-                    imod3 = 0;
-                    break;
-                }
-                c1 = c2;
-            }
-            switch (imod3) {
-            case 1:
-                os << basis_64[(c1 & 0x03) << 4] << "==";
-                break;
-            case 2:
-                os << basis_64[(c1 & 0x0f) << 2] << '=';
-                break;
-            }
-            strValue = os.str();
-        }
-        return strValue;
-    };
-    static const char basis_64[];
-};
-
-const char FIBase64ValueImpl::basis_64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
-
-std::shared_ptr<FIBase64Value> FIBase64Value::create(std::vector<uint8_t> &&value) {
-    return std::make_shared<FIBase64ValueImpl>(std::move(value));
-}
-
-struct FIShortValueImpl: public FIShortValue {
-    mutable std::string strValue;
-    mutable bool strValueValid;
-    inline FIShortValueImpl(std::vector<int16_t> &&value_): strValueValid(false) { value = std::move(value_); }
-    virtual const std::string &toString() const /*override*/ {
-        if (!strValueValid) {
-            strValueValid = true;
-            std::ostringstream os;
-            int n = 0;
-            std::for_each(value.begin(), value.end(), [&](int16_t s) { if (++n > 1) os << ' '; os << s; });
-            strValue = os.str();
-        }
-        return strValue;
-    }
-};
-
-std::shared_ptr<FIShortValue> FIShortValue::create(std::vector<int16_t> &&value) {
-    return std::make_shared<FIShortValueImpl>(std::move(value));
-}
-
-struct FIIntValueImpl: public FIIntValue {
-    mutable std::string strValue;
-    mutable bool strValueValid;
-    inline FIIntValueImpl(std::vector<int32_t> &&value_): strValueValid(false) { value = std::move(value_); }
-    virtual const std::string &toString() const /*override*/ {
-        if (!strValueValid) {
-            strValueValid = true;
-            std::ostringstream os;
-            int n = 0;
-            std::for_each(value.begin(), value.end(), [&](int32_t i) { if (++n > 1) os << ' '; os << i; });
-            strValue = os.str();
-        }
-        return strValue;
-    };
-};
-
-std::shared_ptr<FIIntValue> FIIntValue::create(std::vector<int32_t> &&value) {
-    return std::make_shared<FIIntValueImpl>(std::move(value));
-}
-
-struct FILongValueImpl: public FILongValue {
-    mutable std::string strValue;
-    mutable bool strValueValid;
-    inline FILongValueImpl(std::vector<int64_t> &&value_): strValueValid(false) { value = std::move(value_); }
-    virtual const std::string &toString() const /*override*/ {
-        if (!strValueValid) {
-            strValueValid = true;
-            std::ostringstream os;
-            int n = 0;
-            std::for_each(value.begin(), value.end(), [&](int64_t l) { if (++n > 1) os << ' '; os << l; });
-            strValue = os.str();
-        }
-        return strValue;
-    };
-};
-
-std::shared_ptr<FILongValue> FILongValue::create(std::vector<int64_t> &&value) {
-    return std::make_shared<FILongValueImpl>(std::move(value));
-}
-
-struct FIBoolValueImpl: public FIBoolValue {
-    mutable std::string strValue;
-    mutable bool strValueValid;
-    inline FIBoolValueImpl(std::vector<bool> &&value_): strValueValid(false) { value = std::move(value_); }
-    virtual const std::string &toString() const /*override*/ {
-        if (!strValueValid) {
-            strValueValid = true;
-            std::ostringstream os;
-            os << std::boolalpha;
-            int n = 0;
-            std::for_each(value.begin(), value.end(), [&](bool b) { if (++n > 1) os << ' '; os << b; });
-            strValue = os.str();
-        }
-        return strValue;
-    };
-};
-
-std::shared_ptr<FIBoolValue> FIBoolValue::create(std::vector<bool> &&value) {
-    return std::make_shared<FIBoolValueImpl>(std::move(value));
-}
-
-struct FIFloatValueImpl: public FIFloatValue {
-    mutable std::string strValue;
-    mutable bool strValueValid;
-    inline FIFloatValueImpl(std::vector<float> &&value_): strValueValid(false) { value = std::move(value_); }
-    virtual const std::string &toString() const /*override*/ {
-        if (!strValueValid) {
-            strValueValid = true;
-            std::ostringstream os;
-            int n = 0;
-            std::for_each(value.begin(), value.end(), [&](float f) { if (++n > 1) os << ' '; os << f; });
-            strValue = os.str();
-        }
-        return strValue;
-    }
-};
-
-std::shared_ptr<FIFloatValue> FIFloatValue::create(std::vector<float> &&value) {
-    return std::make_shared<FIFloatValueImpl>(std::move(value));
-}
-
-struct FIDoubleValueImpl: public FIDoubleValue {
-    mutable std::string strValue;
-    mutable bool strValueValid;
-    inline FIDoubleValueImpl(std::vector<double> &&value_): strValueValid(false) { value = std::move(value_); }
-    virtual const std::string &toString() const /*override*/ {
-        if (!strValueValid) {
-            strValueValid = true;
-            std::ostringstream os;
-            int n = 0;
-            std::for_each(value.begin(), value.end(), [&](double d) { if (++n > 1) os << ' '; os << d; });
-            strValue = os.str();
-        }
-        return strValue;
-    }
-};
-
-std::shared_ptr<FIDoubleValue> FIDoubleValue::create(std::vector<double> &&value) {
-    return std::make_shared<FIDoubleValueImpl>(std::move(value));
-}
-
-struct FIUUIDValueImpl: public FIUUIDValue {
-    mutable std::string strValue;
-    mutable bool strValueValid;
-    inline FIUUIDValueImpl(std::vector<uint8_t> &&value_): strValueValid(false) { value = std::move(value_); }
-    virtual const std::string &toString() const /*override*/ {
-        if (!strValueValid) {
-            strValueValid = true;
-            std::ostringstream os;
-            os << std::hex << std::uppercase << std::setfill('0');
-            std::vector<uint8_t>::size_type valueSize = value.size();
-            for (std::vector<uint8_t>::size_type i = 0; i < valueSize; ++i) {
-                switch (i & 15) {
-                case 0:
-                    if (i > 0) {
-                        os << ' ';
-                    }
-                    os << std::setw(2) << static_cast<int>(value[i]);
-                    break;
-                case 4:
-                case 6:
-                case 8:
-                case 10:
-                    os << '-';
-                    // intentionally fall through!
-                case 1:
-                case 2:
-                case 3:
-                case 5:
-                case 7:
-                case 9:
-                case 11:
-                case 12:
-                case 13:
-                case 14:
-                case 15:
-                    os << std::setw(2) << static_cast<int>(value[i]);
-                    break;
-                }
-            }
-            strValue = os.str();
-        }
-        return strValue;
-    };
-};
-
-std::shared_ptr<FIUUIDValue> FIUUIDValue::create(std::vector<uint8_t> &&value) {
-    return std::make_shared<FIUUIDValueImpl>(std::move(value));
-}
-
-struct FICDATAValueImpl: public FICDATAValue {
-    inline FICDATAValueImpl(std::string &&value_) { value = std::move(value_); }
-    virtual const std::string &toString() const /*override*/ { return value; }
-};
-
-std::shared_ptr<FICDATAValue> FICDATAValue::create(std::string &&value) {
-    return std::make_shared<FICDATAValueImpl>(std::move(value));
-}
-
-struct FIHexDecoder: public FIDecoder {
-    virtual std::shared_ptr<const FIValue> decode(const uint8_t *data, size_t len) /*override*/ {
-        return FIHexValue::create(std::vector<uint8_t>(data, data + len));
-    }
-};
-
-struct FIBase64Decoder: public FIDecoder {
-    virtual std::shared_ptr<const FIValue> decode(const uint8_t *data, size_t len) /*override*/ {
-        return FIBase64Value::create(std::vector<uint8_t>(data, data + len));
-    }
-};
-
-struct FIShortDecoder: public FIDecoder {
-    virtual std::shared_ptr<const FIValue> decode(const uint8_t *data, size_t len) /*override*/ {
-        if (len & 1) {
-            throw DeadlyImportError(parseErrorMessage);
-        }
-        std::vector<int16_t> value;
-        size_t numShorts = len / 2;
-        value.reserve(numShorts);
-        for (size_t i = 0; i < numShorts; ++i) {
-            int16_t v = (data[0] << 8) | data[1];
-            value.push_back(v);
-            data += 2;
-        }
-        return FIShortValue::create(std::move(value));
-    }
-};
-
-struct FIIntDecoder: public FIDecoder {
-    virtual std::shared_ptr<const FIValue> decode(const uint8_t *data, size_t len) /*override*/ {
-        if (len & 3) {
-            throw DeadlyImportError(parseErrorMessage);
-        }
-        std::vector<int32_t> value;
-        size_t numInts = len / 4;
-        value.reserve(numInts);
-        for (size_t i = 0; i < numInts; ++i) {
-            int32_t v = (data[0] << 24) | (data[1] << 16) | (data[2] << 8) | data[3];
-            value.push_back(v);
-            data += 4;
-        }
-        return FIIntValue::create(std::move(value));
-    }
-};
-
-struct FILongDecoder: public FIDecoder {
-    virtual std::shared_ptr<const FIValue> decode(const uint8_t *data, size_t len) /*override*/ {
-        if (len & 7) {
-            throw DeadlyImportError(parseErrorMessage);
-        }
-        std::vector<int64_t> value;
-        size_t numLongs = len / 8;
-        value.reserve(numLongs);
-        for (size_t i = 0; i < numLongs; ++i) {
-            int64_t b0 = data[0], b1 = data[1], b2 = data[2], b3 = data[3], b4 = data[4], b5 = data[5], b6 = data[6], b7 = data[7];
-            int64_t v = (b0 << 56) | (b1 << 48) | (b2 << 40) | (b3 << 32) | (b4 << 24) | (b5 << 16) | (b6 << 8) | b7;
-            value.push_back(v);
-            data += 8;
-        }
-        return FILongValue::create(std::move(value));
-    }
-};
-
-struct FIBoolDecoder: public FIDecoder {
-    virtual std::shared_ptr<const FIValue> decode(const uint8_t *data, size_t len) /*override*/ {
-        if (len < 1) {
-            throw DeadlyImportError(parseErrorMessage);
-        }
-        std::vector<bool> value;
-        uint8_t b = *data++;
-        size_t unusedBits = b >> 4;
-        size_t numBools = (len * 8) - 4 - unusedBits;
-        value.reserve(numBools);
-        uint8_t mask = 1 << 3;
-        for (size_t i = 0; i < numBools; ++i) {
-            if (!mask) {
-                mask = 1 << 7;
-                b = *data++;
-            }
-            value.push_back((b & mask) != 0);
-        }
-        return FIBoolValue::create(std::move(value));
-    }
-};
-
-struct FIFloatDecoder: public FIDecoder {
-    virtual std::shared_ptr<const FIValue> decode(const uint8_t *data, size_t len) /*override*/ {
-        if (len & 3) {
-            throw DeadlyImportError(parseErrorMessage);
-        }
-        std::vector<float> value;
-        size_t numFloats = len / 4;
-        value.reserve(numFloats);
-        for (size_t i = 0; i < numFloats; ++i) {
-            int v = (data[0] << 24) | (data[1] << 16) | (data[2] << 8) | data[3];
-            float f;
-            memcpy(&f, &v, 4);
-            value.push_back(f);
-            data += 4;
-        }
-        return FIFloatValue::create(std::move(value));
-    }
-};
-
-struct FIDoubleDecoder: public FIDecoder {
-    virtual std::shared_ptr<const FIValue> decode(const uint8_t *data, size_t len) /*override*/ {
-        if (len & 7) {
-            throw DeadlyImportError(parseErrorMessage);
-        }
-        std::vector<double> value;
-        size_t numDoubles = len / 8;
-        value.reserve(numDoubles);
-        for (size_t i = 0; i < numDoubles; ++i) {
-            long long b0 = data[0], b1 = data[1], b2 = data[2], b3 = data[3], b4 = data[4], b5 = data[5], b6 = data[6], b7 = data[7];
-            long long v = (b0 << 56) | (b1 << 48) | (b2 << 40) | (b3 << 32) | (b4 << 24) | (b5 << 16) | (b6 << 8) | b7;
-            double f;
-            memcpy(&f, &v, 8);
-            value.push_back(f);
-            data += 8;
-        }
-        return FIDoubleValue::create(std::move(value));
-    }
-};
-
-struct FIUUIDDecoder: public FIDecoder {
-    virtual std::shared_ptr<const FIValue> decode(const uint8_t *data, size_t len) /*override*/ {
-        if (len & 15) {
-            throw DeadlyImportError(parseErrorMessage);
-        }
-        return FIUUIDValue::create(std::vector<uint8_t>(data, data + len));
-    }
-};
-
-struct FICDATADecoder: public FIDecoder {
-    virtual std::shared_ptr<const FIValue> decode(const uint8_t *data, size_t len) /*override*/ {
-        return FICDATAValue::create(parseUTF8String(data, len));
-    }
-};
-
-class CFIReaderImpl: public FIReader {
-public:
-
-    CFIReaderImpl(std::unique_ptr<uint8_t[]> data_, size_t size):
-    data(std::move(data_)), dataP(data.get()), dataEnd(data.get() + size), currentNodeType(irr::io::EXN_NONE),
-    emptyElement(false), headerPending(true), terminatorPending(false)
-    {}
-
-    virtual ~CFIReaderImpl() {}
-
-    virtual bool read() /*override*/ {
-        if (headerPending) {
-            headerPending = false;
-            parseHeader();
-        }
-        if (terminatorPending) {
-            terminatorPending = false;
-            if (elementStack.empty()) {
-                return false;
-            }
-            else {
-                nodeName = elementStack.top();
-                elementStack.pop();
-                currentNodeType = nodeName.empty() ? irr::io::EXN_UNKNOWN : irr::io::EXN_ELEMENT_END;
-                return true;
-            }
-        }
-        if (dataP >= dataEnd) {
-            return false;
-        }
-        uint8_t b = *dataP;
-        if (b < 0x80) { // Element (C.2.11.2, C.3.7.2)
-            // C.3
-            parseElement();
-            return true;
-        }
-        else if (b < 0xc0) { // Characters (C.3.7.5)
-            // C.7
-            auto chars = parseNonIdentifyingStringOrIndex3(vocabulary.charactersTable);
-            nodeName = chars->toString();
-            currentNodeType = irr::io::EXN_TEXT;
-            return true;
-        }
-        else if (b < 0xe0) {
-            if ((b & 0xfc) == 0xc4) { // DTD (C.2.11.5)
-                // C.9
-                ++dataP;
-                if (b & 0x02) {
-                    /*const std::string &systemID =*/ parseIdentifyingStringOrIndex(vocabulary.otherURITable);
-                }
-                if (b & 0x01) {
-                    /*const std::string &publicID =*/ parseIdentifyingStringOrIndex(vocabulary.otherURITable);
-                }
-                elementStack.push(EmptyString);
-                currentNodeType = irr::io::EXN_UNKNOWN;
-                return true;
-            }
-            else if ((b & 0xfc) == 0xc8) { // Unexpanded entity reference (C.3.7.4)
-                // C.6
-                ++dataP;
-                /*const std::string &name =*/ parseIdentifyingStringOrIndex(vocabulary.otherNCNameTable);
-                if (b & 0x02) {
-                    /*const std::string &systemID =*/ parseIdentifyingStringOrIndex(vocabulary.otherURITable);
-                }
-                if (b & 0x01) {
-                    /*const std::string &publicID =*/ parseIdentifyingStringOrIndex(vocabulary.otherURITable);
-                }
-                currentNodeType = irr::io::EXN_UNKNOWN;
-                return true;
-            }
-        }
-        else if (b < 0xf0) {
-            if (b == 0xe1) { // Processing instruction (C.2.11.3, C.3.7.3)
-                // C.5
-                ++dataP;
-                /*const std::string &target =*/ parseIdentifyingStringOrIndex(vocabulary.otherNCNameTable);
-                if (dataEnd - dataP < 1) {
-                    throw DeadlyImportError(parseErrorMessage);
-                }
-                /*std::shared_ptr<const FIValue> data =*/ parseNonIdentifyingStringOrIndex1(vocabulary.otherStringTable);
-                currentNodeType = irr::io::EXN_UNKNOWN;
-                return true;
-            }
-            else if (b == 0xe2) { // Comment (C.2.11.4, C.3.7.6)
-                // C.8
-                ++dataP;
-                if (dataEnd - dataP < 1) {
-                    throw DeadlyImportError(parseErrorMessage);
-                }
-                std::shared_ptr<const FIValue> comment = parseNonIdentifyingStringOrIndex1(vocabulary.otherStringTable);
-                nodeName = comment->toString();
-                currentNodeType = irr::io::EXN_COMMENT;
-                return true;
-            }
-        }
-        else { // Terminator (C.2.12, C.3.8)
-            ++dataP;
-            if (b == 0xff) {
-                terminatorPending = true;
-            }
-            if (elementStack.empty()) {
-                return false;
-            }
-            else {
-                nodeName = elementStack.top();
-                elementStack.pop();
-                currentNodeType = nodeName.empty() ? irr::io::EXN_UNKNOWN : irr::io::EXN_ELEMENT_END;
-                return true;
-            }
-        }
-        throw DeadlyImportError(parseErrorMessage);
-    }
-
-    virtual irr::io::EXML_NODE getNodeType() const /*override*/ {
-        return currentNodeType;
-    }
-
-    virtual int getAttributeCount() const /*override*/ {
-        return static_cast<int>(attributes.size());
-    }
-
-    virtual const char* getAttributeName(int idx) const /*override*/ {
-        if (idx < 0 || idx >= (int)attributes.size()) {
-            return nullptr;
-        }
-        return attributes[idx].name.c_str();
-    }
-
-    virtual const char* getAttributeValue(int idx) const /*override*/ {
-        if (idx < 0 || idx >= (int)attributes.size()) {
-            return nullptr;
-        }
-        return attributes[idx].value->toString().c_str();
-    }
-
-    virtual const char* getAttributeValue(const char* name) const /*override*/ {
-        const Attribute* attr = getAttributeByName(name);
-        if (!attr) {
-            return nullptr;
-        }
-        return attr->value->toString().c_str();
-    }
-
-    virtual const char* getAttributeValueSafe(const char* name) const /*override*/ {
-        const Attribute* attr = getAttributeByName(name);
-        if (!attr) {
-            return EmptyString.c_str();
-        }
-        return attr->value->toString().c_str();
-    }
-
-    virtual int getAttributeValueAsInt(const char* name) const /*override*/ {
-        const Attribute* attr = getAttributeByName(name);
-        if (!attr) {
-            return 0;
-        }
-        std::shared_ptr<const FIIntValue> intValue = std::dynamic_pointer_cast<const FIIntValue>(attr->value);
-        if (intValue) {
-            return intValue->value.size() == 1 ? intValue->value.front() : 0;
-        }
-        return atoi(attr->value->toString().c_str());
-    }
-
-    virtual int getAttributeValueAsInt(int idx) const /*override*/ {
-        if (idx < 0 || idx >= (int)attributes.size()) {
-            return 0;
-        }
-        std::shared_ptr<const FIIntValue> intValue = std::dynamic_pointer_cast<const FIIntValue>(attributes[idx].value);
-        if (intValue) {
-            return intValue->value.size() == 1 ? intValue->value.front() : 0;
-        }
-        return atoi(attributes[idx].value->toString().c_str());
-    }
-
-    virtual float getAttributeValueAsFloat(const char* name) const /*override*/ {
-        const Attribute* attr = getAttributeByName(name);
-        if (!attr) {
-            return 0;
-        }
-        std::shared_ptr<const FIFloatValue> floatValue = std::dynamic_pointer_cast<const FIFloatValue>(attr->value);
-        if (floatValue) {
-            return floatValue->value.size() == 1 ? floatValue->value.front() : 0;
-        }
-
-        return fast_atof(attr->value->toString().c_str());
-    }
-
-    virtual float getAttributeValueAsFloat(int idx) const /*override*/ {
-        if (idx < 0 || idx >= (int)attributes.size()) {
-            return 0;
-        }
-        std::shared_ptr<const FIFloatValue> floatValue = std::dynamic_pointer_cast<const FIFloatValue>(attributes[idx].value);
-        if (floatValue) {
-            return floatValue->value.size() == 1 ? floatValue->value.front() : 0;
-        }
-        return fast_atof(attributes[idx].value->toString().c_str());
-    }
-
-    virtual const char* getNodeName() const /*override*/ {
-        return nodeName.c_str();
-    }
-
-    virtual const char* getNodeData() const /*override*/ {
-        return nodeName.c_str();
-    }
-
-    virtual bool isEmptyElement() const /*override*/ {
-        return emptyElement;
-    }
-
-    virtual irr::io::ETEXT_FORMAT getSourceFormat() const /*override*/ {
-        return irr::io::ETF_UTF8;
-    }
-
-    virtual irr::io::ETEXT_FORMAT getParserFormat() const /*override*/ {
-        return irr::io::ETF_UTF8;
-    }
-
-    virtual std::shared_ptr<const FIValue> getAttributeEncodedValue(int idx) const /*override*/ {
-        if (idx < 0 || idx >= (int)attributes.size()) {
-            return nullptr;
-        }
-        return attributes[idx].value;
-    }
-
-    virtual std::shared_ptr<const FIValue> getAttributeEncodedValue(const char* name) const /*override*/ {
-        const Attribute* attr = getAttributeByName(name);
-        if (!attr) {
-            return nullptr;
-        }
-        return attr->value;
-    }
-
-    virtual void registerDecoder(const std::string &algorithmUri, std::unique_ptr<FIDecoder> decoder) /*override*/ {
-        decoderMap[algorithmUri] = std::move(decoder);
-    }
-
-    virtual void registerVocabulary(const std::string &vocabularyUri, const FIVocabulary *vocabulary) /*override*/ {
-        vocabularyMap[vocabularyUri] = vocabulary;
-    }
-
-private:
-
-    struct QName {
-        std::string prefix;
-        std::string uri;
-        std::string name;
-        inline QName() {}
-        inline QName(const FIQName &qname): prefix(qname.prefix ? qname.prefix : ""), uri(qname.uri ? qname.uri : ""), name(qname.name) {}
-    };
-
-    struct Attribute {
-        QName qname;
-        std::string name;
-        std::shared_ptr<const FIValue> value;
-    };
-
-    struct Vocabulary {
-        std::vector<std::string> restrictedAlphabetTable;
-        std::vector<std::string> encodingAlgorithmTable;
-        std::vector<std::string> prefixTable;
-        std::vector<std::string> namespaceNameTable;
-        std::vector<std::string> localNameTable;
-        std::vector<std::string> otherNCNameTable;
-        std::vector<std::string> otherURITable;
-        std::vector<std::shared_ptr<const FIValue>> attributeValueTable;
-        std::vector<std::shared_ptr<const FIValue>> charactersTable;
-        std::vector<std::shared_ptr<const FIValue>> otherStringTable;
-        std::vector<QName> elementNameTable;
-        std::vector<QName> attributeNameTable;
-        Vocabulary() {
-            prefixTable.push_back("xml");
-            namespaceNameTable.push_back("http://www.w3.org/XML/1998/namespace");
-        }
-    };
-
-    const Attribute* getAttributeByName(const char* name) const {
-        if (!name) {
-            return 0;
-        }
-        std::string n = name;
-        for (int i=0; i<(int)attributes.size(); ++i) {
-            if (attributes[i].name == n) {
-                return &attributes[i];
-            }
-        }
-        return 0;
-    }
-
-    size_t parseInt2() { // C.25
-        uint8_t b = *dataP++;
-        if (!(b & 0x40)) { // x0...... (C.25.2)
-            return b & 0x3f;
-        }
-        else if ((b & 0x60) == 0x40) { // x10..... ........ (C.25.3)
-            if (dataEnd - dataP > 0) {
-                return (((b & 0x1f) << 8) | *dataP++) + 0x40;
-            }
-        }
-        else if ((b & 0x70) == 0x60) { // x110.... ........ ........ (C.25.4)
-            if (dataEnd - dataP > 1) {
-                size_t result = (((b & 0x0f) << 16) | (dataP[0] << 8) | dataP[1]) + 0x2040;
-                dataP += 2;
-                return result;
-            }
-        }
-        throw DeadlyImportError(parseErrorMessage);
-    }
-
-    size_t parseInt3() { // C.27
-        uint8_t b = *dataP++;
-        if (!(b & 0x20)) { // xx0..... (C.27.2)
-            return b & 0x1f;
-        }
-        else if ((b & 0x38) == 0x20) { // xx100... ........ (C.27.3)
-            if (dataEnd - dataP > 0) {
-                return (((b & 0x07) << 8) | *dataP++) + 0x20;
-            }
-        }
-        else if ((b & 0x38) == 0x28) { // xx101... ........ ........ (C.27.4)
-            if (dataEnd - dataP > 1) {
-                size_t result = (((b & 0x07) << 16) | (dataP[0] << 8) | dataP[1]) + 0x820;
-                dataP += 2;
-                return result;
-            }
-        }
-        else if ((b & 0x3f) == 0x30) { // xx110000 0000.... ........ ........ (C.27.5)
-            if ((dataEnd - dataP > 2) && !(dataP[0] & 0xf0)) {
-                size_t result = (((dataP[0] & 0x0f) << 16) | (dataP[1] << 8) | dataP[2]) + 0x80820;
-                dataP += 3;
-                return result;
-            }
-        }
-        throw DeadlyImportError(parseErrorMessage);
-    }
-
-    size_t parseInt4() { // C.28
-        uint8_t b = *dataP++;
-        if (!(b & 0x10)) { // xxx0.... (C.28.2)
-            return b & 0x0f;
-        }
-        else if ((b & 0x1c) == 0x10) { // xxx100.. ........ (C.28.3)
-            if (dataEnd - dataP > 0) {
-                return (((b & 0x03) << 8) | *dataP++) + 0x10;
-            }
-        }
-        else if ((b & 0x1c) == 0x14) { // xxx101.. ........ ........ (C.28.4)
-            if (dataEnd - dataP > 1) {
-                size_t result = (((b & 0x03) << 16) | (dataP[0] << 8) | dataP[1]) + 0x410;
-                dataP += 2;
-                return result;
-            }
-        }
-        else if ((b & 0x1f) == 0x18) { // xxx11000 0000.... ........ ........ (C.28.5)
-            if ((dataEnd - dataP > 2) && !(dataP[0] & 0xf0)) {
-                size_t result = (((dataP[0] & 0x0f) << 16) | (dataP[1] << 8) | dataP[2]) + 0x40410;
-                dataP += 3;
-                return result;
-            }
-        }
-        throw DeadlyImportError(parseErrorMessage);
-    }
-
-    size_t parseSequenceLen() { // C.21
-        if (dataEnd - dataP > 0) {
-            uint8_t b = *dataP++;
-            if (b < 0x80) { // 0....... (C.21.2)
-                return b;
-            }
-            else if ((b & 0xf0) == 0x80) { // 1000.... ........ ........ (C.21.3)
-                if (dataEnd - dataP > 1) {
-                    size_t result = (((b & 0x0f) << 16) | (dataP[0] << 8) | dataP[1]) + 0x80;
-                    dataP += 2;
-                    return result;
-                }
-            }
-        }
-        throw DeadlyImportError(parseErrorMessage);
-    }
-
-    std::string parseNonEmptyOctetString2() { // C.22
-        // Parse the length of the string
-        uint8_t b = *dataP++ & 0x7f;
-        size_t len;
-        if (!(b & 0x40)) { // x0...... (C.22.3.1)
-            len = b + 1;
-        }
-        else if (b == 0x40) { // x1000000 ........ (C.22.3.2)
-            if (dataEnd - dataP < 1) {
-                throw DeadlyImportError(parseErrorMessage);
-            }
-            len = *dataP++ + 0x41;
-        }
-        else if (b == 0x60) { // x1100000 ........ ........ ........ ........ (C.22.3.3)
-            if (dataEnd - dataP < 4) {
-                throw DeadlyImportError(parseErrorMessage);
-            }
-            len = ((dataP[0] << 24) | (dataP[1] << 16) | (dataP[2] << 8) | dataP[3]) + 0x141;
-            dataP += 4;
-        }
-        else {
-            throw DeadlyImportError(parseErrorMessage);
-        }
-
-        // Parse the string (C.22.4)
-        if (dataEnd - dataP < static_cast<ptrdiff_t>(len)) {
-            throw DeadlyImportError(parseErrorMessage);
-        }
-        std::string s = parseUTF8String(dataP, len);
-        dataP += len;
-
-        return s;
-    }
-
-    size_t parseNonEmptyOctetString5Length() { // C.23
-        // Parse the length of the string
-        size_t b = *dataP++ & 0x0f;
-        if (!(b & 0x08)) { // xxxx0... (C.23.3.1)
-            return b + 1;
-        }
-        else if (b == 0x08) { // xxxx1000 ........ (C.23.3.2)
-            if (dataEnd - dataP > 0) {
-                return *dataP++ + 0x09;
-            }
-        }
-        else if (b == 0x0c) { // xxxx1100 ........ ........ ........ ........ (C.23.3.3)
-            if (dataEnd - dataP > 3) {
-                size_t result = ((dataP[0] << 24) | (dataP[1] << 16) | (dataP[2] << 8) | dataP[3]) + 0x109;
-                dataP += 4;
-                return result;
-            }
-        }
-        throw DeadlyImportError(parseErrorMessage);
-    }
-
-    size_t parseNonEmptyOctetString7Length() { // C.24
-        // Parse the length of the string
-        size_t b = *dataP++ & 0x03;
-        if (!(b & 0x02)) { // xxxxxx0. (C.24.3.1)
-            return b + 1;
-        }
-        else if (b == 0x02) { // xxxxxx10 ........ (C.24.3.2)
-            if (dataEnd - dataP > 0) {
-                return *dataP++ + 0x3;
-            }
-        }
-        else if (b == 0x03) { // xxxxxx11 ........ ........ ........ ........ (C.24.3.3)
-            if (dataEnd - dataP > 3) {
-                size_t result = ((dataP[0] << 24) | (dataP[1] << 16) | (dataP[2] << 8) | dataP[3]) + 0x103;
-                dataP += 4;
-                return result;
-            }
-        }
-        throw DeadlyImportError(parseErrorMessage);
-    }
-
-    std::shared_ptr<const FIValue> parseEncodedData(size_t index, size_t len) {
-        if (index < 32) {
-            FIDecoder *decoder = defaultDecoder[index];
-            if (!decoder) {
-                throw DeadlyImportError("Invalid encoding algorithm index " + to_string(index));
-            }
-            return decoder->decode(dataP, len);
-        }
-        else {
-            if (index - 32 >= vocabulary.encodingAlgorithmTable.size()) {
-                throw DeadlyImportError("Invalid encoding algorithm index " + to_string(index));
-            }
-            std::string uri = vocabulary.encodingAlgorithmTable[index - 32];
-            auto it = decoderMap.find(uri);
-            if (it == decoderMap.end()) {
-                throw DeadlyImportError("Unsupported encoding algorithm " + uri);
-            }
-            else {
-                return it->second->decode(dataP, len);
-            }
-        }
-    }
-
-    std::shared_ptr<const FIValue> parseRestrictedAlphabet(size_t index, size_t len) {
-        std::string alphabet;
-        if (index < 16) {
-            switch (index) {
-            case 0: // numeric
-                alphabet = "0123456789-+.e ";
-                break;
-            case 1: // date and time
-                alphabet = "0123456789-:TZ ";
-                break;
-            default:
-                throw DeadlyImportError("Invalid restricted alphabet index " + to_string(index));
-            }
-        }
-        else {
-            if (index - 16 >= vocabulary.restrictedAlphabetTable.size()) {
-                throw DeadlyImportError("Invalid restricted alphabet index " + to_string(index));
-            }
-            alphabet = vocabulary.restrictedAlphabetTable[index - 16];
-        }
-        std::vector<uint32_t> alphabetUTF32;
-        utf8::utf8to32(alphabet.begin(), alphabet.end(), back_inserter(alphabetUTF32));
-        std::string::size_type alphabetLength = alphabetUTF32.size();
-        if (alphabetLength < 2) {
-            throw DeadlyImportError("Invalid restricted alphabet length " + to_string(alphabetLength));
-        }
-        std::string::size_type bitsPerCharacter = 1;
-        while ((1ull << bitsPerCharacter) <= alphabetLength) {
-            ++bitsPerCharacter;
-        }
-        size_t bitsAvail = 0;
-        uint8_t mask = (1 << bitsPerCharacter) - 1;
-        uint32_t bits = 0;
-        std::string s;
-        for (size_t i = 0; i < len; ++i) {
-            bits = (bits << 8) | dataP[i];
-            bitsAvail += 8;
-            while (bitsAvail >= bitsPerCharacter) {
-                bitsAvail -= bitsPerCharacter;
-                size_t charIndex = (bits >> bitsAvail) & mask;
-                if (charIndex < alphabetLength) {
-                    s.push_back(alphabetUTF32[charIndex]);
-                }
-                else if (charIndex != mask) {
-                    throw DeadlyImportError(parseErrorMessage);
-                }
-            }
-        }
-        return FIStringValue::create(std::move(s));
-    }
-
-    std::shared_ptr<const FIValue> parseEncodedCharacterString3() { // C.19
-        std::shared_ptr<const FIValue> result;
-        size_t len;
-        uint8_t b = *dataP;
-        if (b & 0x20) {
-            ++dataP;
-            if (dataEnd - dataP < 1) {
-                throw DeadlyImportError(parseErrorMessage);
-            }
-            size_t index = ((b & 0x0f) << 4) | ((*dataP & 0xf0) >> 4); // C.29
-            len = parseNonEmptyOctetString5Length();
-            if (dataEnd - dataP < static_cast<ptrdiff_t>(len)) {
-                throw DeadlyImportError(parseErrorMessage);
-            }
-            if (b & 0x10) {
-                // encoding algorithm (C.19.3.4)
-                result = parseEncodedData(index, len);
-            }
-            else {
-                // Restricted alphabet (C.19.3.3)
-                result = parseRestrictedAlphabet(index, len);
-            }
-        }
-        else {
-            len = parseNonEmptyOctetString5Length();
-            if (dataEnd - dataP < static_cast<ptrdiff_t>(len)) {
-                throw DeadlyImportError(parseErrorMessage);
-            }
-            if (b & 0x10) {
-                // UTF-16 (C.19.3.2)
-                if (len & 1) {
-                    throw DeadlyImportError(parseErrorMessage);
-                }
-                result = FIStringValue::create(parseUTF16String(dataP, len));
-            }
-            else {
-                // UTF-8 (C.19.3.1)
-                result = FIStringValue::create(parseUTF8String(dataP, len));
-            }
-        }
-        dataP += len;
-        return result;
-    }
-
-    std::shared_ptr<const FIValue> parseEncodedCharacterString5() { // C.20
-        std::shared_ptr<const FIValue> result;
-        size_t len;
-        uint8_t b = *dataP;
-        if (b & 0x08) {
-            ++dataP;
-            if (dataEnd - dataP < 1) {
-                throw DeadlyImportError(parseErrorMessage);
-            }
-            size_t index = ((b & 0x03) << 6) | ((*dataP & 0xfc) >> 2); /* C.29 */
-            len = parseNonEmptyOctetString7Length();
-            if (dataEnd - dataP < static_cast<ptrdiff_t>(len)) {
-                throw DeadlyImportError(parseErrorMessage);
-            }
-            if (b & 0x04) {
-                // encoding algorithm (C.20.3.4)
-                result = parseEncodedData(index, len);
-            }
-            else {
-                // Restricted alphabet (C.20.3.3)
-                result = parseRestrictedAlphabet(index, len);
-            }
-        }
-        else {
-            len = parseNonEmptyOctetString7Length();
-            if (dataEnd - dataP < static_cast<ptrdiff_t>(len)) {
-                throw DeadlyImportError(parseErrorMessage);
-            }
-            if (b & 0x04) {
-                // UTF-16 (C.20.3.2)
-                if (len & 1) {
-                    throw DeadlyImportError(parseErrorMessage);
-                }
-                result = FIStringValue::create(parseUTF16String(dataP, len));
-            }
-            else {
-                // UTF-8 (C.20.3.1)
-                result = FIStringValue::create(parseUTF8String(dataP, len));
-            }
-        }
-        dataP += len;
-        return result;
-    }
-
-    const std::string &parseIdentifyingStringOrIndex(std::vector<std::string> &stringTable) { // C.13
-        if (dataEnd - dataP < 1) {
-            throw DeadlyImportError(parseErrorMessage);
-        }
-        uint8_t b = *dataP;
-        if (b & 0x80) {
-            // We have an index (C.13.4)
-            size_t index = parseInt2();
-            if (index >= stringTable.size()) {
-                throw DeadlyImportError(parseErrorMessage);
-            }
-            return stringTable[index];
-        }
-        else {
-            // We have a string (C.13.3)
-            stringTable.push_back(parseNonEmptyOctetString2());
-            return stringTable.back();
-        }
-    }
-
-    QName parseNameSurrogate() { // C.16
-        if (dataEnd - dataP < 1) {
-            throw DeadlyImportError(parseErrorMessage);
-        }
-        uint8_t b = *dataP++;
-        if (b & 0xfc) { // Padding '000000' C.2.5.5
-            throw DeadlyImportError(parseErrorMessage);
-        }
-        QName result;
-        size_t index;
-        if (b & 0x02) { // prefix (C.16.3)
-            if ((dataEnd - dataP < 1) || (*dataP & 0x80)) {
-                throw DeadlyImportError(parseErrorMessage);
-            }
-            index = parseInt2();
-            if (index >= vocabulary.prefixTable.size()) {
-                throw DeadlyImportError(parseErrorMessage);
-            }
-            result.prefix = vocabulary.prefixTable[index];
-        }
-        if (b & 0x01) { // namespace-name (C.16.4)
-            if ((dataEnd - dataP < 1) || (*dataP & 0x80)) {
-                throw DeadlyImportError(parseErrorMessage);
-            }
-            index = parseInt2();
-            if (index >= vocabulary.namespaceNameTable.size()) {
-                throw DeadlyImportError(parseErrorMessage);
-            }
-            result.uri = vocabulary.namespaceNameTable[index];
-        }
-        // local-name
-        if ((dataEnd - dataP < 1) || (*dataP & 0x80)) {
-            throw DeadlyImportError(parseErrorMessage);
-        }
-        index = parseInt2();
-        if (index >= vocabulary.localNameTable.size()) {
-            throw DeadlyImportError(parseErrorMessage);
-        }
-        result.name = vocabulary.localNameTable[index];
-        return result;
-    }
-
-    const QName &parseQualifiedNameOrIndex2(std::vector<QName> &qNameTable) { // C.17
-        uint8_t b = *dataP;
-        if ((b & 0x7c) == 0x78) { // x11110..
-            // We have a literal (C.17.3)
-            ++dataP;
-            QName result;
-            // prefix (C.17.3.1)
-            result.prefix = b & 0x02 ? parseIdentifyingStringOrIndex(vocabulary.prefixTable) : std::string();
-            // namespace-name (C.17.3.1)
-            result.uri = b & 0x01 ? parseIdentifyingStringOrIndex(vocabulary.namespaceNameTable) : std::string();
-            // local-name
-            result.name = parseIdentifyingStringOrIndex(vocabulary.localNameTable);
-            qNameTable.push_back(result);
-            return qNameTable.back();
-        }
-        else {
-            // We have an index (C.17.4)
-            size_t index = parseInt2();
-            if (index >= qNameTable.size()) {
-                throw DeadlyImportError(parseErrorMessage);
-            }
-            return qNameTable[index];
-        }
-    }
-
-    const QName &parseQualifiedNameOrIndex3(std::vector<QName> &qNameTable) { // C.18
-        uint8_t b = *dataP;
-        if ((b & 0x3c) == 0x3c) { // xx1111..
-            // We have a literal (C.18.3)
-            ++dataP;
-            QName result;
-            // prefix (C.18.3.1)
-            result.prefix = b & 0x02 ? parseIdentifyingStringOrIndex(vocabulary.prefixTable) : std::string();
-            // namespace-name (C.18.3.1)
-            result.uri = b & 0x01 ? parseIdentifyingStringOrIndex(vocabulary.namespaceNameTable) : std::string();
-            // local-name
-            result.name = parseIdentifyingStringOrIndex(vocabulary.localNameTable);
-            qNameTable.push_back(result);
-            return qNameTable.back();
-        }
-        else {
-            // We have an index (C.18.4)
-            size_t index = parseInt3();
-            if (index >= qNameTable.size()) {
-                throw DeadlyImportError(parseErrorMessage);
-            }
-            return qNameTable[index];
-        }
-    }
-
-    std::shared_ptr<const FIValue> parseNonIdentifyingStringOrIndex1(std::vector<std::shared_ptr<const FIValue>> &valueTable) { // C.14
-        uint8_t b = *dataP;
-        if (b == 0xff) { // C.26.2
-            // empty string
-            ++dataP;
-            return EmptyFIString;
-        }
-        else if (b & 0x80) { // C.14.4
-            // We have an index
-            size_t index = parseInt2();
-            if (index >= valueTable.size()) {
-                throw DeadlyImportError(parseErrorMessage);
-            }
-            return valueTable[index];
-        }
-        else { // C.14.3
-            // We have a literal
-            std::shared_ptr<const FIValue> result = parseEncodedCharacterString3();
-            if (b & 0x40) { // C.14.3.1
-                valueTable.push_back(result);
-            }
-            return result;
-        }
-    }
-
-    std::shared_ptr<const FIValue> parseNonIdentifyingStringOrIndex3(std::vector<std::shared_ptr<const FIValue>> &valueTable) { // C.15
-        uint8_t b = *dataP;
-        if (b & 0x20) { // C.15.4
-            // We have an index
-            size_t index = parseInt4();
-            if (index >= valueTable.size()) {
-                throw DeadlyImportError(parseErrorMessage);
-            }
-            return valueTable[index];
-        }
-        else { // C.15.3
-            // We have a literal
-            std::shared_ptr<const FIValue> result = parseEncodedCharacterString5();
-            if (b & 0x10) { // C.15.3.1
-                valueTable.push_back(result);
-            }
-            return result;
-        }
-    }
-
-    void parseElement() {
-        // C.3
-
-        attributes.clear();
-
-        uint8_t b = *dataP;
-        bool hasAttributes = (b & 0x40) != 0; // C.3.3
-        if ((b & 0x3f) == 0x38) { // C.3.4.1
-            // Parse namespaces
-            ++dataP;
-            for (;;) {
-                if (dataEnd - dataP < 1) {
-                    throw DeadlyImportError(parseErrorMessage);
-                }
-                b = *dataP++;
-                if (b == 0xf0) { // C.3.4.3
-                    break;
-                }
-                if ((b & 0xfc) != 0xcc) { // C.3.4.2
-                    throw DeadlyImportError(parseErrorMessage);
-                }
-                // C.12
-                Attribute attr;
-                attr.qname.prefix = "xmlns";
-                attr.qname.name = b & 0x02 ? parseIdentifyingStringOrIndex(vocabulary.prefixTable) : std::string();
-                attr.qname.uri = b & 0x01 ? parseIdentifyingStringOrIndex(vocabulary.namespaceNameTable) : std::string();
-                attr.name = attr.qname.name.empty() ? "xmlns" : "xmlns:" + attr.qname.name;
-                attr.value = FIStringValue::create(std::string(attr.qname.uri));
-                attributes.push_back(attr);
-            }
-            if ((dataEnd - dataP < 1) || (*dataP & 0xc0)) {
-                throw DeadlyImportError(parseErrorMessage);
-            }
-        }
-
-        // Parse Element name (C.3.5)
-        const QName &elemName = parseQualifiedNameOrIndex3(vocabulary.elementNameTable);
-        nodeName = elemName.prefix.empty() ? elemName.name : elemName.prefix + ':' + elemName.name;
-
-        if (hasAttributes) {
-            for (;;) {
-                if (dataEnd - dataP < 1) {
-                    throw DeadlyImportError(parseErrorMessage);
-                }
-                b = *dataP;
-                if (b < 0x80) { // C.3.6.1
-                    // C.4
-                    Attribute attr;
-                    attr.qname = parseQualifiedNameOrIndex2(vocabulary.attributeNameTable);
-                    attr.name = attr.qname.prefix.empty() ? attr.qname.name : attr.qname.prefix + ':' + attr.qname.name;
-                    if (dataEnd - dataP < 1) {
-                        throw DeadlyImportError(parseErrorMessage);
-                    }
-                    attr.value = parseNonIdentifyingStringOrIndex1(vocabulary.attributeValueTable);
-                    attributes.push_back(attr);
-                }
-                else {
-                    if ((b & 0xf0) != 0xf0) { // C.3.6.2
-                        throw DeadlyImportError(parseErrorMessage);
-                    }
-                    emptyElement = b == 0xff; // C.3.6.2, C.3.8
-                    ++dataP;
-                    break;
-                }
-            }
-        }
-        else {
-            if (dataEnd - dataP < 1) {
-                throw DeadlyImportError(parseErrorMessage);
-            }
-            b = *dataP;
-            switch (b) {
-            case 0xff:
-                terminatorPending = true;
-                // Intentionally fall through
-            case 0xf0:
-                emptyElement = true;
-                ++dataP;
-                break;
-            default:
-                emptyElement = false;
-            }
-        }
-        if (!emptyElement) {
-            elementStack.push(nodeName);
-        }
-
-        currentNodeType = irr::io::EXN_ELEMENT;
-    }
-
-    void parseHeader() {
-        // Parse header (C.1.3)
-        size_t magicSize = parseMagic(dataP, dataEnd);
-        if (!magicSize) {
-            throw DeadlyImportError(parseErrorMessage);
-        }
-        dataP += magicSize;
-        // C.2.3
-        if (dataEnd - dataP < 1) {
-            throw DeadlyImportError(parseErrorMessage);
-        }
-        uint8_t b = *dataP++;
-        if (b & 0x40) {
-            // Parse additional data (C.2.4)
-            size_t len = parseSequenceLen();
-            for (size_t i = 0; i < len; ++i) {
-                if (dataEnd - dataP < 1) {
-                    throw DeadlyImportError(parseErrorMessage);
-                }
-                /*std::string id =*/ parseNonEmptyOctetString2();
-                if (dataEnd - dataP < 1) {
-                    throw DeadlyImportError(parseErrorMessage);
-                }
-                /*std::string data =*/ parseNonEmptyOctetString2();
-            }
-        }
-        if (b & 0x20) {
-            // Parse initial vocabulary (C.2.5)
-            if (dataEnd - dataP < 2) {
-                throw DeadlyImportError(parseErrorMessage);
-            }
-            uint16_t b1 = (dataP[0] << 8) | dataP[1];
-            dataP += 2;
-            if (b1 & 0x1000) {
-                // External vocabulary (C.2.5.2)
-                if (dataEnd - dataP < 1) {
-                    throw DeadlyImportError(parseErrorMessage);
-                }
-                std::string uri = parseNonEmptyOctetString2();
-                auto it = vocabularyMap.find(uri);
-                if (it == vocabularyMap.end()) {
-                    throw DeadlyImportError("Unknown vocabulary " + uri);
-                }
-                const FIVocabulary *externalVocabulary = it->second;
-                if (externalVocabulary->restrictedAlphabetTable) {
-                    std::copy(externalVocabulary->restrictedAlphabetTable, externalVocabulary->restrictedAlphabetTable + externalVocabulary->restrictedAlphabetTableSize, std::back_inserter(vocabulary.restrictedAlphabetTable));
-                }
-                if (externalVocabulary->encodingAlgorithmTable) {
-                    std::copy(externalVocabulary->encodingAlgorithmTable, externalVocabulary->encodingAlgorithmTable + externalVocabulary->encodingAlgorithmTableSize, std::back_inserter(vocabulary.encodingAlgorithmTable));
-                }
-                if (externalVocabulary->prefixTable) {
-                    std::copy(externalVocabulary->prefixTable, externalVocabulary->prefixTable + externalVocabulary->prefixTableSize, std::back_inserter(vocabulary.prefixTable));
-                }
-                if (externalVocabulary->namespaceNameTable) {
-                    std::copy(externalVocabulary->namespaceNameTable, externalVocabulary->namespaceNameTable + externalVocabulary->namespaceNameTableSize, std::back_inserter(vocabulary.namespaceNameTable));
-                }
-                if (externalVocabulary->localNameTable) {
-                    std::copy(externalVocabulary->localNameTable, externalVocabulary->localNameTable + externalVocabulary->localNameTableSize, std::back_inserter(vocabulary.localNameTable));
-                }
-                if (externalVocabulary->otherNCNameTable) {
-                    std::copy(externalVocabulary->otherNCNameTable, externalVocabulary->otherNCNameTable + externalVocabulary->otherNCNameTableSize, std::back_inserter(vocabulary.otherNCNameTable));
-                }
-                if (externalVocabulary->otherURITable) {
-                    std::copy(externalVocabulary->otherURITable, externalVocabulary->otherURITable + externalVocabulary->otherURITableSize, std::back_inserter(vocabulary.otherURITable));
-                }
-                if (externalVocabulary->attributeValueTable) {
-                    std::copy(externalVocabulary->attributeValueTable, externalVocabulary->attributeValueTable + externalVocabulary->attributeValueTableSize, std::back_inserter(vocabulary.attributeValueTable));
-                }
-                if (externalVocabulary->charactersTable) {
-                    std::copy(externalVocabulary->charactersTable, externalVocabulary->charactersTable + externalVocabulary->charactersTableSize, std::back_inserter(vocabulary.charactersTable));
-                }
-                if (externalVocabulary->otherStringTable) {
-                    std::copy(externalVocabulary->otherStringTable, externalVocabulary->otherStringTable + externalVocabulary->otherStringTableSize, std::back_inserter(vocabulary.otherStringTable));
-                }
-                if (externalVocabulary->elementNameTable) {
-                    std::copy(externalVocabulary->elementNameTable, externalVocabulary->elementNameTable + externalVocabulary->elementNameTableSize, std::back_inserter(vocabulary.elementNameTable));
-                }
-                if (externalVocabulary->attributeNameTable) {
-                    std::copy(externalVocabulary->attributeNameTable, externalVocabulary->attributeNameTable + externalVocabulary->attributeNameTableSize, std::back_inserter(vocabulary.attributeNameTable));
-                }
-            }
-            if (b1 & 0x0800) {
-                // Parse restricted alphabets (C.2.5.3)
-                for (size_t len = parseSequenceLen(); len > 0; --len) {
-                    if (dataEnd - dataP < 1) {
-                        throw DeadlyImportError(parseErrorMessage);
-                    }
-                    vocabulary.restrictedAlphabetTable.push_back(parseNonEmptyOctetString2());
-                }
-            }
-            if (b1 & 0x0400) {
-                // Parse encoding algorithms (C.2.5.3)
-                for (size_t len = parseSequenceLen(); len > 0; --len) {
-                    if (dataEnd - dataP < 1) {
-                        throw DeadlyImportError(parseErrorMessage);
-                    }
-                    vocabulary.encodingAlgorithmTable.push_back(parseNonEmptyOctetString2());
-                }
-            }
-            if (b1 & 0x0200) {
-                // Parse prefixes (C.2.5.3)
-                for (size_t len = parseSequenceLen(); len > 0; --len) {
-                    if (dataEnd - dataP < 1) {
-                        throw DeadlyImportError(parseErrorMessage);
-                    }
-                    vocabulary.prefixTable.push_back(parseNonEmptyOctetString2());
-                }
-            }
-            if (b1 & 0x0100) {
-                // Parse namespace names (C.2.5.3)
-                for (size_t len = parseSequenceLen(); len > 0; --len) {
-                    if (dataEnd - dataP < 1) {
-                        throw DeadlyImportError(parseErrorMessage);
-                    }
-                    vocabulary.namespaceNameTable.push_back(parseNonEmptyOctetString2());
-                }
-            }
-            if (b1 & 0x0080) {
-                // Parse local names (C.2.5.3)
-                for (size_t len = parseSequenceLen(); len > 0; --len) {
-                    if (dataEnd - dataP < 1) {
-                        throw DeadlyImportError(parseErrorMessage);
-                    }
-                    vocabulary.localNameTable.push_back(parseNonEmptyOctetString2());
-                }
-            }
-            if (b1 & 0x0040) {
-                // Parse other ncnames (C.2.5.3)
-                for (size_t len = parseSequenceLen(); len > 0; --len) {
-                    if (dataEnd - dataP < 1) {
-                        throw DeadlyImportError(parseErrorMessage);
-                    }
-                    vocabulary.otherNCNameTable.push_back(parseNonEmptyOctetString2());
-                }
-            }
-            if (b1 & 0x0020) {
-                // Parse other uris (C.2.5.3)
-                for (size_t len = parseSequenceLen(); len > 0; --len) {
-                    if (dataEnd - dataP < 1) {
-                        throw DeadlyImportError(parseErrorMessage);
-                    }
-                    vocabulary.otherURITable.push_back(parseNonEmptyOctetString2());
-                }
-            }
-            if (b1 & 0x0010) {
-                // Parse attribute values (C.2.5.4)
-                for (size_t len = parseSequenceLen(); len > 0; --len) {
-                    if (dataEnd - dataP < 1) {
-                        throw DeadlyImportError(parseErrorMessage);
-                    }
-                    vocabulary.attributeValueTable.push_back(parseEncodedCharacterString3());
-                }
-            }
-            if (b1 & 0x0008) {
-                // Parse content character chunks (C.2.5.4)
-                for (size_t len = parseSequenceLen(); len > 0; --len) {
-                    if (dataEnd - dataP < 1) {
-                        throw DeadlyImportError(parseErrorMessage);
-                    }
-                    vocabulary.charactersTable.push_back(parseEncodedCharacterString3());
-                }
-            }
-            if (b1 & 0x0004) {
-                // Parse other strings (C.2.5.4)
-                for (size_t len = parseSequenceLen(); len > 0; --len) {
-                    if (dataEnd - dataP < 1) {
-                        throw DeadlyImportError(parseErrorMessage);
-                    }
-                    vocabulary.otherStringTable.push_back(parseEncodedCharacterString3());
-                }
-            }
-            if (b1 & 0x0002) {
-                // Parse element name surrogates (C.2.5.5)
-                for (size_t len = parseSequenceLen(); len > 0; --len) {
-                    vocabulary.elementNameTable.push_back(parseNameSurrogate());
-                }
-            }
-            if (b1 & 0x0001) {
-                // Parse attribute name surrogates (C.2.5.5)
-                for (size_t len = parseSequenceLen(); len > 0; --len) {
-                    vocabulary.attributeNameTable.push_back(parseNameSurrogate());
-                }
-            }
-        }
-        if (b & 0x10) {
-            // Parse notations (C.2.6)
-            for (;;) {
-                if (dataEnd - dataP < 1) {
-                    throw DeadlyImportError(parseErrorMessage);
-                }
-                uint8_t b1 = *dataP++;
-                if (b1 == 0xf0) {
-                    break;
-                }
-                if ((b1 & 0xfc) != 0xc0) {
-                    throw DeadlyImportError(parseErrorMessage);
-                }
-                /* C.11 */
-                /*const std::string &name =*/ parseIdentifyingStringOrIndex(vocabulary.otherNCNameTable);
-                if (b1 & 0x02) {
-                    /*const std::string &systemId =*/ parseIdentifyingStringOrIndex(vocabulary.otherURITable);
-                }
-                if (b1 & 0x01) {
-                    /*const std::string &publicId =*/ parseIdentifyingStringOrIndex(vocabulary.otherURITable);
-                }
-            }
-        }
-        if (b & 0x08) {
-            // Parse unparsed entities (C.2.7)
-            for (;;) {
-                if (dataEnd - dataP < 1) {
-                    throw DeadlyImportError(parseErrorMessage);
-                }
-                uint8_t b1 = *dataP++;
-                if (b1 == 0xf0) {
-                    break;
-                }
-                if ((b1 & 0xfe) != 0xd0) {
-                    throw DeadlyImportError(parseErrorMessage);
-                }
-                /* C.10 */
-                /*const std::string &name =*/ parseIdentifyingStringOrIndex(vocabulary.otherNCNameTable);
-                /*const std::string &systemId =*/ parseIdentifyingStringOrIndex(vocabulary.otherURITable);
-                if (b1 & 0x01) {
-                    /*const std::string &publicId =*/ parseIdentifyingStringOrIndex(vocabulary.otherURITable);
-                }
-                /*const std::string &notationName =*/ parseIdentifyingStringOrIndex(vocabulary.otherNCNameTable);
-            }
-        }
-        if (b & 0x04) {
-            // Parse character encoding scheme (C.2.8)
-            if (dataEnd - dataP < 1) {
-                throw DeadlyImportError(parseErrorMessage);
-            }
-            /*std::string characterEncodingScheme =*/ parseNonEmptyOctetString2();
-        }
-        if (b & 0x02) {
-            // Parse standalone flag (C.2.9)
-            if (dataEnd - dataP < 1) {
-                throw DeadlyImportError(parseErrorMessage);
-            }
-            uint8_t b1 = *dataP++;
-            if (b1 & 0xfe) {
-                throw DeadlyImportError(parseErrorMessage);
-            }
-            //bool standalone = b1 & 0x01;
-        }
-        if (b & 0x01) {
-            // Parse version (C.2.10)
-            if (dataEnd - dataP < 1) {
-                throw DeadlyImportError(parseErrorMessage);
-            }
-            /*std::shared_ptr<const FIValue> version =*/ parseNonIdentifyingStringOrIndex1(vocabulary.otherStringTable);
-        }
-    }
-
-    std::unique_ptr<uint8_t[]> data;
-    uint8_t *dataP, *dataEnd;
-    irr::io::EXML_NODE currentNodeType;
-    bool emptyElement;
-    bool headerPending;
-    bool terminatorPending;
-    Vocabulary vocabulary;
-    std::vector<Attribute> attributes;
-    std::stack<std::string> elementStack;
-    std::string nodeName;
-    std::map<std::string, std::unique_ptr<FIDecoder>> decoderMap;
-    std::map<std::string, const FIVocabulary*> vocabularyMap;
-
-    static const std::string EmptyString;
-    static std::shared_ptr<const FIValue> EmptyFIString;
-
-    static FIHexDecoder hexDecoder;
-    static FIBase64Decoder base64Decoder;
-    static FIShortDecoder shortDecoder;
-    static FIIntDecoder intDecoder;
-    static FILongDecoder longDecoder;
-    static FIBoolDecoder boolDecoder;
-    static FIFloatDecoder floatDecoder;
-    static FIDoubleDecoder doubleDecoder;
-    static FIUUIDDecoder uuidDecoder;
-    static FICDATADecoder cdataDecoder;
-    static FIDecoder *defaultDecoder[32];
-};
-
-const std::string CFIReaderImpl::EmptyString;
-std::shared_ptr<const FIValue> CFIReaderImpl::EmptyFIString = FIStringValue::create(std::string());
-
-FIHexDecoder CFIReaderImpl::hexDecoder;
-FIBase64Decoder CFIReaderImpl::base64Decoder;
-FIShortDecoder CFIReaderImpl::shortDecoder;
-FIIntDecoder CFIReaderImpl::intDecoder;
-FILongDecoder CFIReaderImpl::longDecoder;
-FIBoolDecoder CFIReaderImpl::boolDecoder;
-FIFloatDecoder CFIReaderImpl::floatDecoder;
-FIDoubleDecoder CFIReaderImpl::doubleDecoder;
-FIUUIDDecoder CFIReaderImpl::uuidDecoder;
-FICDATADecoder CFIReaderImpl::cdataDecoder;
-
-FIDecoder *CFIReaderImpl::defaultDecoder[32] = {
-    &hexDecoder,
-    &base64Decoder,
-    &shortDecoder,
-    &intDecoder,
-    &longDecoder,
-    &boolDecoder,
-    &floatDecoder,
-    &doubleDecoder,
-    &uuidDecoder,
-    &cdataDecoder
-};
-
-class CXMLReaderImpl : public FIReader
-{
-public:
-
-    //! Constructor
-    CXMLReaderImpl(std::unique_ptr<irr::io::IIrrXMLReader<char, irr::io::IXMLBase>> reader_)
-    : reader(std::move(reader_))
-    {}
-
-    virtual ~CXMLReaderImpl() {}
-
-    virtual bool read() /*override*/ {
-        return reader->read();
-    }
-
-    virtual irr::io::EXML_NODE getNodeType() const /*override*/ {
-        return reader->getNodeType();
-    }
-
-    virtual int getAttributeCount() const /*override*/ {
-        return reader->getAttributeCount();
-    }
-
-    virtual const char* getAttributeName(int idx) const /*override*/ {
-        return reader->getAttributeName(idx);
-    }
-
-    virtual const char* getAttributeValue(int idx) const /*override*/ {
-        return reader->getAttributeValue(idx);
-    }
-
-    virtual const char* getAttributeValue(const char* name) const /*override*/ {
-        return reader->getAttributeValue(name);
-    }
-
-    virtual const char* getAttributeValueSafe(const char* name) const /*override*/ {
-        return reader->getAttributeValueSafe(name);
-    }
-
-    virtual int getAttributeValueAsInt(const char* name) const /*override*/ {
-        return reader->getAttributeValueAsInt(name);
-    }
-
-    virtual int getAttributeValueAsInt(int idx) const /*override*/ {
-        return reader->getAttributeValueAsInt(idx);
-    }
-
-    virtual float getAttributeValueAsFloat(const char* name) const /*override*/ {
-        return reader->getAttributeValueAsFloat(name);
-    }
-
-    virtual float getAttributeValueAsFloat(int idx) const /*override*/ {
-        return reader->getAttributeValueAsFloat(idx);
-    }
-
-    virtual const char* getNodeName() const /*override*/ {
-        return reader->getNodeName();
-    }
-
-    virtual const char* getNodeData() const /*override*/ {
-        return reader->getNodeData();
-    }
-
-    virtual bool isEmptyElement() const /*override*/ {
-        return reader->isEmptyElement();
-    }
-
-    virtual irr::io::ETEXT_FORMAT getSourceFormat() const /*override*/ {
-        return reader->getSourceFormat();
-    }
-
-    virtual irr::io::ETEXT_FORMAT getParserFormat() const /*override*/ {
-        return reader->getParserFormat();
-    }
-
-    virtual std::shared_ptr<const FIValue> getAttributeEncodedValue(int /*idx*/) const /*override*/ {
-        return nullptr;
-    }
-
-    virtual std::shared_ptr<const FIValue> getAttributeEncodedValue(const char* /*name*/) const /*override*/ {
-        return nullptr;
-    }
-
-    virtual void registerDecoder(const std::string & /*algorithmUri*/, std::unique_ptr<FIDecoder> /*decoder*/) /*override*/ {}
-
-
-    virtual void registerVocabulary(const std::string &/*vocabularyUri*/, const FIVocabulary * /*vocabulary*/) /*override*/ {}
-
-private:
-
-    std::unique_ptr<irr::io::IIrrXMLReader<char, irr::io::IXMLBase>> reader;
-};
-
-static std::unique_ptr<uint8_t[]> readFile(IOStream *stream, size_t &size, bool &isFI) {
-    size = stream->FileSize();
-    std::unique_ptr<uint8_t[]> data = std::unique_ptr<uint8_t[]>(new uint8_t[size]);
-    if (stream->Read(data.get(), size, 1) != 1) {
-        size = 0;
-        data.reset();
-    }
-    isFI = parseMagic(data.get(), data.get() + size) > 0;
-    return data;
-}
-
-std::unique_ptr<FIReader> FIReader::create(IOStream *stream)
-{
-    size_t size;
-    bool isFI;
-    auto data = readFile(stream, size, isFI);
-    if (isFI) {
-        return std::unique_ptr<FIReader>(new CFIReaderImpl(std::move(data), size));
-    }
-    else {
-        auto memios = std::unique_ptr<MemoryIOStream>(new MemoryIOStream(data.release(), size, true));
-        auto callback = std::unique_ptr<CIrrXML_IOStreamReader>(new CIrrXML_IOStreamReader(memios.get()));
-        return std::unique_ptr<FIReader>(new CXMLReaderImpl(std::unique_ptr<irr::io::IIrrXMLReader<char, irr::io::IXMLBase>>(createIrrXMLReader(callback.get()))));
-    }
-}
-
-}// namespace Assimp
-
-#endif // !ASSIMP_BUILD_NO_X3D_IMPORTER