Merge branch 'master' into FixSkinnedWeightsAfterVertexRemappingOptimization

CMakeLists.txt

@@ -49,8 +49,8 @@ option(ASSIMP_HUNTER_ENABLED "Enable Hunter package manager support" OFF)
 IF(ASSIMP_HUNTER_ENABLED)
   include("cmake-modules/HunterGate.cmake")
   HunterGate(
-    URL "https://github.com/cpp-pm/hunter/archive/v0.24.0.tar.gz"
+    URL "https://github.com/cpp-pm/hunter/archive/v0.24.17.tar.gz"
-    SHA1 "a3d7f4372b1dcd52faa6ff4a3bd5358e1d0e5efd"
+    SHA1 "e6396699e414120e32557fe92db097b7655b760b"
   )
 
   add_definitions(-DASSIMP_USE_HUNTER)

Dockerfile

@@ -1,14 +1,9 @@
-FROM ubuntu:14.04
+FROM ubuntu:22.04
 
-RUN apt-get update && apt-get install -y \
+RUN apt-get update && apt-get install -y ninja-build \
     git cmake build-essential software-properties-common
 
-RUN add-apt-repository ppa:ubuntu-toolchain-r/test && apt-get update && apt-get install -y gcc-4.9 g++-4.9 && \
+RUN add-apt-repository ppa:ubuntu-toolchain-r/test && apt-get update 
-    cd /usr/bin && \
-    rm gcc g++ cpp && \
-    ln -s gcc-4.9 gcc && \
-    ln -s g++-4.9 g++ && \
-    ln -s cpp-4.9 cpp
 
 WORKDIR /opt
 
@@ -19,7 +14,8 @@ WORKDIR /opt/assimp
 
 RUN git checkout master \
     && mkdir build && cd build && \
-    cmake \
+    cmake -G 'Ninja' \
     -DCMAKE_BUILD_TYPE=Release \
+    -DASSIMP_BUILD_ASSIMP_TOOLS=ON \
     .. && \
-    make && make install
+    ninja -j4 && ninja install

code/AssetLib/MD5/MD5Parser.cpp

@@ -229,14 +229,19 @@ bool MD5Parser::ParseSection(Section &out) {
 
 // parse a string, enclosed in quotation marks
 #define AI_MD5_PARSE_STRING_IN_QUOTATION(out)          \
-    while ('\"' != *sz)                        \
+    out.length = 0;                                    \
+    while ('\"' != *sz && '\0' != *sz)                 \
         ++sz;                                          \
+    if ('\0' != *sz) {                                 \
         const char *szStart = ++sz;                    \
-    while ('\"' != *sz)                        \
+        while ('\"' != *sz && '\0' != *sz)             \
             ++sz;                                      \
+        if ('\0' != *sz) {                             \
             const char *szEnd = (sz++);                \
             out.length = (ai_uint32)(szEnd - szStart); \
             ::memcpy(out.data, szStart, out.length);   \
+        }                                              \
+    }                                                  \
     out.data[out.length] = '\0';
 // ------------------------------------------------------------------------------------------------
 // .MD5MESH parsing function

code/AssetLib/MDL/MDLLoader.cpp

@@ -274,7 +274,7 @@ void MDLImporter::InternReadFile(const std::string &pFile,
 // ------------------------------------------------------------------------------------------------
 // Check whether we're still inside the valid file range
 void MDLImporter::SizeCheck(const void *szPos) {
-    if (!szPos || (const unsigned char *)szPos > this->mBuffer + this->iFileSize) {
+    if (!szPos || (const unsigned char *)szPos > this->mBuffer + this->iFileSize || szPos < this->mBuffer) {
         throw DeadlyImportError("Invalid MDL file. The file is too small "
                                 "or contains invalid data.");
     }

code/AssetLib/MDL/MDLMaterialLoader.cpp

@@ -703,7 +703,14 @@ void MDLImporter::SkipSkinLump_3DGS_MDL7(
             tex.pcData = bad_texel;
             tex.mHeight = iHeight;
             tex.mWidth = iWidth;
+
+            try {
                 ParseTextureColorData(szCurrent, iMasked, &iSkip, &tex);
+            } catch (...) {
+                // FIX: Important, otherwise the destructor will crash
+                tex.pcData = nullptr;
+                throw;
+            }
 
             // FIX: Important, otherwise the destructor will crash
             tex.pcData = nullptr;

code/AssetLib/Obj/ObjFileImporter.cpp

@@ -323,7 +323,7 @@ aiMesh *ObjFileImporter::createTopology(const ObjFile::Model *pModel, const ObjF
         return nullptr;
     }
 
-    aiMesh *pMesh = new aiMesh;
+    std::unique_ptr<aiMesh> pMesh(new aiMesh);
     if (!pObjMesh->m_name.empty()) {
         pMesh->mName.Set(pObjMesh->m_name);
     }
@@ -385,9 +385,9 @@ aiMesh *ObjFileImporter::createTopology(const ObjFile::Model *pModel, const ObjF
     }
 
     // Create mesh vertices
-    createVertexArray(pModel, pData, meshIndex, pMesh, uiIdxCount);
+    createVertexArray(pModel, pData, meshIndex, pMesh.get(), uiIdxCount);
 
-    return pMesh;
+    return pMesh.release();
 }
 
 // ------------------------------------------------------------------------------------------------
@@ -498,6 +498,10 @@ void ObjFileImporter::createVertexArray(const ObjFile::Model *pModel,
 
                 if (vertexIndex) {
                     if (!last) {
+                        if (pMesh->mNumVertices <= newIndex + 1) {
+                            throw DeadlyImportError("OBJ: bad vertex index");
+                        }
+
                         pMesh->mVertices[newIndex + 1] = pMesh->mVertices[newIndex];
                         if (!sourceFace->m_normals.empty() && !pModel->mNormals.empty()) {
                             pMesh->mNormals[newIndex + 1] = pMesh->mNormals[newIndex];

code/AssetLib/glTF2/glTF2Asset.h

@@ -371,6 +371,15 @@ struct CustomExtension {
     CustomExtension& operator=(const CustomExtension&) = default;
 };
 
+//! Represents metadata in an glTF2 object
+struct Extras {
+    std::vector<CustomExtension> mValues;
+
+    inline bool HasExtras() const {
+        return !mValues.empty();
+    }
+};
+
 //! Base class for all glTF top-level objects
 struct Object {
     int index; //!< The index of this object within its property container
@@ -379,7 +388,7 @@ struct Object {
     std::string name; //!< The user-defined name of this object
 
     CustomExtension customExtensions;
-    CustomExtension extras;
+    Extras extras;
 
     //! Objects marked as special are not exported (used to emulate the binary body buffer)
     virtual bool IsSpecial() const { return false; }

code/AssetLib/glTF2/glTF2Asset.inl

@@ -139,6 +139,18 @@ inline CustomExtension ReadExtensions(const char *name, Value &obj) {
     return ret;
 }
 
+inline Extras ReadExtras(Value &obj) {
+    Extras ret;
+
+    ret.mValues.reserve(obj.MemberCount());
+    for (auto it = obj.MemberBegin(); it != obj.MemberEnd(); ++it) {
+        auto &val = it->value;
+        ret.mValues.emplace_back(ReadExtensions(it->name.GetString(), val));
+    }
+
+    return ret;
+}
+
 inline void CopyData(size_t count, const uint8_t *src, size_t src_stride,
         uint8_t *dst, size_t dst_stride) {
     if (src_stride == dst_stride) {
@@ -248,7 +260,7 @@ inline void Object::ReadExtensions(Value &val) {
 
 inline void Object::ReadExtras(Value &val) {
     if (Value *curExtras = FindObject(val, "extras")) {
-        this->extras = glTF2::ReadExtensions("extras", *curExtras);
+        this->extras = glTF2::ReadExtras(*curExtras);
     }
 }
 

code/AssetLib/glTF2/glTF2AssetWriter.inl

@@ -654,6 +654,44 @@ namespace glTF2 {
         }
     }
 
+    inline void WriteExtrasValue(Value &parent, const CustomExtension &value, AssetWriter &w) {
+        Value valueNode;
+
+        if (value.mStringValue.isPresent) {
+            MakeValue(valueNode, value.mStringValue.value.c_str(), w.mAl);
+        } else if (value.mDoubleValue.isPresent) {
+            MakeValue(valueNode, value.mDoubleValue.value, w.mAl);
+        } else if (value.mUint64Value.isPresent) {
+            MakeValue(valueNode, value.mUint64Value.value, w.mAl);
+        } else if (value.mInt64Value.isPresent) {
+            MakeValue(valueNode, value.mInt64Value.value, w.mAl);
+        } else if (value.mBoolValue.isPresent) {
+            MakeValue(valueNode, value.mBoolValue.value, w.mAl);
+        } else if (value.mValues.isPresent) {
+            valueNode.SetObject();
+            for (auto const &subvalue : value.mValues.value) {
+                WriteExtrasValue(valueNode, subvalue, w);
+            }
+        }
+
+        parent.AddMember(StringRef(value.name), valueNode, w.mAl);
+    }
+
+    inline void WriteExtras(Value &obj, const Extras &extras, AssetWriter &w) {
+        if (!extras.HasExtras()) {
+            return;
+        }
+
+        Value extrasNode;
+        extrasNode.SetObject();
+
+        for (auto const &value : extras.mValues) {
+            WriteExtrasValue(extrasNode, value, w);
+        }
+        
+        obj.AddMember("extras", extrasNode, w.mAl);
+    }
+
     inline void Write(Value& obj, Node& n, AssetWriter& w)
     {
         if (n.matrix.isPresent) {
@@ -689,6 +727,8 @@ namespace glTF2 {
         if(n.skeletons.size()) {
             AddRefsVector(obj, "skeletons", n.skeletons, w.mAl);
         }
+
+        WriteExtras(obj, n.extras, w);
     }
 
     inline void Write(Value& /*obj*/, Program& /*b*/, AssetWriter& /*w*/)
@@ -762,7 +802,6 @@ namespace glTF2 {
         }
     }
 
-
     inline AssetWriter::AssetWriter(Asset& a)
         : mDoc()
         , mAsset(a)

code/AssetLib/glTF2/glTF2Exporter.cpp

@@ -443,6 +443,61 @@ inline Ref<Accessor> ExportData(Asset &a, std::string &meshName, Ref<Buffer> &bu
     return acc;
 }
 
+inline void ExportNodeExtras(const aiMetadataEntry &metadataEntry, aiString name, CustomExtension &value) {
+
+    value.name = name.C_Str();
+    switch (metadataEntry.mType) {
+    case AI_BOOL:
+        value.mBoolValue.value = *static_cast<bool *>(metadataEntry.mData);
+        value.mBoolValue.isPresent = true;
+        break;
+    case AI_INT32:
+        value.mInt64Value.value = *static_cast<int32_t *>(metadataEntry.mData);
+        value.mInt64Value.isPresent = true;
+        break;
+    case AI_UINT64:
+        value.mUint64Value.value = *static_cast<uint64_t *>(metadataEntry.mData);
+        value.mUint64Value.isPresent = true;
+        break;
+    case AI_FLOAT:
+        value.mDoubleValue.value = *static_cast<float *>(metadataEntry.mData);
+        value.mDoubleValue.isPresent = true;
+        break;
+    case AI_DOUBLE:
+        value.mDoubleValue.value = *static_cast<double *>(metadataEntry.mData);
+        value.mDoubleValue.isPresent = true;
+        break;
+    case AI_AISTRING:
+        value.mStringValue.value = static_cast<aiString *>(metadataEntry.mData)->C_Str();
+        value.mStringValue.isPresent = true;
+        break;
+    case AI_AIMETADATA: {
+        const aiMetadata *subMetadata = static_cast<aiMetadata *>(metadataEntry.mData);
+        value.mValues.value.resize(subMetadata->mNumProperties);
+        value.mValues.isPresent = true;
+
+        for (unsigned i = 0; i < subMetadata->mNumProperties; ++i) {
+            ExportNodeExtras(subMetadata->mValues[i], subMetadata->mKeys[i], value.mValues.value.at(i));
+        }
+        break;
+    }
+    default:
+        // AI_AIVECTOR3D not handled
+        break;
+    }
+}
+
+inline void ExportNodeExtras(const aiMetadata *metadata, Extras &extras) {
+    if (metadata == nullptr || metadata->mNumProperties == 0) {
+        return;
+    }
+
+    extras.mValues.resize(metadata->mNumProperties);
+    for (unsigned int i = 0; i < metadata->mNumProperties; ++i) {
+        ExportNodeExtras(metadata->mValues[i], metadata->mKeys[i], extras.mValues.at(i));
+    }
+}
+
 inline void SetSamplerWrap(SamplerWrap &wrap, aiTextureMapMode map) {
     switch (map) {
     case aiTextureMapMode_Clamp:
@@ -1375,7 +1430,7 @@ unsigned int glTF2Exporter::ExportNodeHierarchy(const aiNode *n) {
     return node.GetIndex();
 }
 
-/*
+ /*
  * Export node and recursively calls ExportNode for all children.
  * Since these nodes are not the root node, we also export the parent Ref<Node>
  */
@@ -1386,6 +1441,8 @@ unsigned int glTF2Exporter::ExportNode(const aiNode *n, Ref<Node> &parent) {
     node->parent = parent;
     node->name = name;
 
+    ExportNodeExtras(n->mMetaData, node->extras);
+
     if (!n->mTransformation.IsIdentity()) {
         if (mScene->mNumAnimations > 0 || (mProperties && mProperties->HasPropertyBool("GLTF2_NODE_IN_TRS"))) {
             aiQuaternion quaternion;

code/AssetLib/glTF2/glTF2Importer.cpp

@@ -1108,11 +1108,9 @@ void ParseExtensions(aiMetadata *metadata, const CustomExtension &extension) {
     }
 }
 
-void ParseExtras(aiMetadata *metadata, const CustomExtension &extension) {
+void ParseExtras(aiMetadata* metadata, const Extras& extras) {
-    if (extension.mValues.isPresent) {
+    for (auto const &value : extras.mValues) {
-        for (auto const &subExtension : extension.mValues.value) {
+        ParseExtensions(metadata, value);
-            ParseExtensions(metadata, subExtension);
-        }
     }
 }
 
@@ -1134,12 +1132,12 @@ aiNode *glTF2Importer::ImportNode(glTF2::Asset &r, glTF2::Ref<glTF2::Node> &ptr)
             }
         }
 
-        if (node.customExtensions || node.extras) {
+        if (node.customExtensions || node.extras.HasExtras()) {
             ainode->mMetaData = new aiMetadata;
             if (node.customExtensions) {
                 ParseExtensions(ainode->mMetaData, node.customExtensions);
             }
-            if (node.extras) {
+            if (node.extras.HasExtras()) {
                 ParseExtras(ainode->mMetaData, node.extras);
             }
         }

code/PostProcessing/LimitBoneWeightsProcess.cpp

@@ -81,6 +81,7 @@ void LimitBoneWeightsProcess::Execute( aiScene* pScene) {
 // Executes the post processing step on the given imported data.
 void LimitBoneWeightsProcess::SetupProperties(const Importer* pImp) {
     this->mMaxWeights = pImp->GetPropertyInteger(AI_CONFIG_PP_LBW_MAX_WEIGHTS,AI_LMW_MAX_WEIGHTS);
+    this->mRemoveEmptyBones = pImp->GetPropertyInteger(AI_CONFIG_IMPORT_REMOVE_EMPTY_BONES, 1) != 0;
 }
 
 // ------------------------------------------------------------------------------------------------
@@ -172,9 +173,9 @@ void LimitBoneWeightsProcess::ProcessMesh(aiMesh* pMesh) {
     }
 
     // remove empty bones
-#ifdef AI_CONFIG_IMPORT_REMOVE_EMPTY_BONES 
+    if (mRemoveEmptyBones) {
         pMesh->mNumBones = removeEmptyBones(pMesh);
-#endif // AI_CONFIG_IMPORT_REMOVE_EMPTY_BONES 
+    }
 
     if (!DefaultLogger::isNullLogger()) {
         ASSIMP_LOG_INFO("Removed ", removed, " weights. Input bones: ", old_bones, ". Output bones: ", pMesh->mNumBones);

code/PostProcessing/LimitBoneWeightsProcess.h

@@ -133,6 +133,7 @@ public:
 
     /** Maximum number of bones influencing any single vertex. */
     unsigned int mMaxWeights;
+    bool mRemoveEmptyBones;
 };
 
 } // end of namespace Assimp

contrib/pugixml/src/pugiconfig.hpp

@@ -1,5 +1,5 @@
 /**
- * pugixml parser - version 1.12
+ * pugixml parser - version 1.13
  * --------------------------------------------------------
  * Copyright (C) 2006-2022, by Arseny Kapoulkine (arseny.kapoulkine@gmail.com)
  * Report bugs and download new versions at https://pugixml.org/

contrib/pugixml/src/pugixml.cpp

@@ -1,5 +1,5 @@
 /**
- * pugixml parser - version 1.12
+ * pugixml parser - version 1.13
  * --------------------------------------------------------
  * Copyright (C) 2006-2022, by Arseny Kapoulkine (arseny.kapoulkine@gmail.com)
  * Report bugs and download new versions at https://pugixml.org/
@@ -1276,12 +1276,14 @@ PUGI__NS_BEGIN
 
 		child->parent = parent;
 
-		if (node->next_sibling)
+		xml_node_struct* next = node->next_sibling;
-			node->next_sibling->prev_sibling_c = child;
+
+		if (next)
+			next->prev_sibling_c = child;
 		else
 			parent->first_child->prev_sibling_c = child;
 
-		child->next_sibling = node->next_sibling;
+		child->next_sibling = next;
 		child->prev_sibling_c = node;
 
 		node->next_sibling = child;
@@ -1293,12 +1295,14 @@ PUGI__NS_BEGIN
 
 		child->parent = parent;
 
-		if (node->prev_sibling_c->next_sibling)
+		xml_node_struct* prev = node->prev_sibling_c;
-			node->prev_sibling_c->next_sibling = child;
+
+		if (prev->next_sibling)
+			prev->next_sibling = child;
 		else
 			parent->first_child = child;
 
-		child->prev_sibling_c = node->prev_sibling_c;
+		child->prev_sibling_c = prev;
 		child->next_sibling = node;
 
 		node->prev_sibling_c = child;
@@ -1308,15 +1312,18 @@ PUGI__NS_BEGIN
 	{
 		xml_node_struct* parent = node->parent;
 
-		if (node->next_sibling)
+		xml_node_struct* next = node->next_sibling;
-			node->next_sibling->prev_sibling_c = node->prev_sibling_c;
+		xml_node_struct* prev = node->prev_sibling_c;
-		else
-			parent->first_child->prev_sibling_c = node->prev_sibling_c;
 
-		if (node->prev_sibling_c->next_sibling)
+		if (next)
-			node->prev_sibling_c->next_sibling = node->next_sibling;
+			next->prev_sibling_c = prev;
 		else
-			parent->first_child = node->next_sibling;
+			parent->first_child->prev_sibling_c = prev;
+
+		if (prev->next_sibling)
+			prev->next_sibling = next;
+		else
+			parent->first_child = next;
 
 		node->parent = 0;
 		node->prev_sibling_c = 0;
@@ -1360,39 +1367,46 @@ PUGI__NS_BEGIN
 
 	inline void insert_attribute_after(xml_attribute_struct* attr, xml_attribute_struct* place, xml_node_struct* node)
 	{
-		if (place->next_attribute)
+		xml_attribute_struct* next = place->next_attribute;
-			place->next_attribute->prev_attribute_c = attr;
+
+		if (next)
+			next->prev_attribute_c = attr;
 		else
 			node->first_attribute->prev_attribute_c = attr;
 
-		attr->next_attribute = place->next_attribute;
+		attr->next_attribute = next;
 		attr->prev_attribute_c = place;
 		place->next_attribute = attr;
 	}
 
 	inline void insert_attribute_before(xml_attribute_struct* attr, xml_attribute_struct* place, xml_node_struct* node)
 	{
-		if (place->prev_attribute_c->next_attribute)
+		xml_attribute_struct* prev = place->prev_attribute_c;
-			place->prev_attribute_c->next_attribute = attr;
+
+		if (prev->next_attribute)
+			prev->next_attribute = attr;
 		else
 			node->first_attribute = attr;
 
-		attr->prev_attribute_c = place->prev_attribute_c;
+		attr->prev_attribute_c = prev;
 		attr->next_attribute = place;
 		place->prev_attribute_c = attr;
 	}
 
 	inline void remove_attribute(xml_attribute_struct* attr, xml_node_struct* node)
 	{
-		if (attr->next_attribute)
+		xml_attribute_struct* next = attr->next_attribute;
-			attr->next_attribute->prev_attribute_c = attr->prev_attribute_c;
+		xml_attribute_struct* prev = attr->prev_attribute_c;
-		else
-			node->first_attribute->prev_attribute_c = attr->prev_attribute_c;
 
-		if (attr->prev_attribute_c->next_attribute)
+		if (next)
-			attr->prev_attribute_c->next_attribute = attr->next_attribute;
+			next->prev_attribute_c = prev;
 		else
-			node->first_attribute = attr->next_attribute;
+			node->first_attribute->prev_attribute_c = prev;
+
+		if (prev->next_attribute)
+			prev->next_attribute = next;
+		else
+			node->first_attribute = next;
 
 		attr->prev_attribute_c = 0;
 		attr->next_attribute = 0;
@@ -4707,6 +4721,9 @@ PUGI__NS_BEGIN
 		// get actual encoding
 		xml_encoding buffer_encoding = impl::get_buffer_encoding(encoding, contents, size);
 
+		// if convert_buffer below throws bad_alloc, we still need to deallocate contents if we own it
+		auto_deleter<void> contents_guard(own ? contents : 0, xml_memory::deallocate);
+
 		// get private buffer
 		char_t* buffer = 0;
 		size_t length = 0;
@@ -4714,6 +4731,9 @@ PUGI__NS_BEGIN
 		// coverity[var_deref_model]
 		if (!impl::convert_buffer(buffer, length, buffer_encoding, contents, size, is_mutable)) return impl::make_parse_result(status_out_of_memory);
 
+		// after this we either deallocate contents (below) or hold on to it via doc->buffer, so we don't need to guard it
+		contents_guard.release();
+
 		// delete original buffer if we performed a conversion
 		if (own && buffer != contents && contents) impl::xml_memory::deallocate(contents);
 
@@ -5050,7 +5070,7 @@ PUGI__NS_BEGIN
 		xml_writer_file writer(file);
 		doc.save(writer, indent, flags, encoding);
 
-		return ferror(file) == 0;
+		return fflush(file) == 0 && ferror(file) == 0;
 	}
 
 	struct name_null_sentry
@@ -5185,53 +5205,72 @@ namespace pugi
 
 	PUGI__FN xml_attribute xml_attribute::next_attribute() const
 	{
-		return _attr ? xml_attribute(_attr->next_attribute) : xml_attribute();
+		if (!_attr) return xml_attribute();
+		return xml_attribute(_attr->next_attribute);
 	}
 
 	PUGI__FN xml_attribute xml_attribute::previous_attribute() const
 	{
-		return _attr && _attr->prev_attribute_c->next_attribute ? xml_attribute(_attr->prev_attribute_c) : xml_attribute();
+		if (!_attr) return xml_attribute();
+		xml_attribute_struct* prev = _attr->prev_attribute_c;
+		return prev->next_attribute ? xml_attribute(prev) : xml_attribute();
 	}
 
 	PUGI__FN const char_t* xml_attribute::as_string(const char_t* def) const
 	{
-		return (_attr && _attr->value) ? _attr->value + 0 : def;
+		if (!_attr) return def;
+		const char_t* value = _attr->value;
+		return value ? value : def;
 	}
 
 	PUGI__FN int xml_attribute::as_int(int def) const
 	{
-		return (_attr && _attr->value) ? impl::get_value_int(_attr->value) : def;
+		if (!_attr) return def;
+		const char_t* value = _attr->value;
+		return value ? impl::get_value_int(value) : def;
 	}
 
 	PUGI__FN unsigned int xml_attribute::as_uint(unsigned int def) const
 	{
-		return (_attr && _attr->value) ? impl::get_value_uint(_attr->value) : def;
+		if (!_attr) return def;
+		const char_t* value = _attr->value;
+		return value ? impl::get_value_uint(value) : def;
 	}
 
 	PUGI__FN double xml_attribute::as_double(double def) const
 	{
-		return (_attr && _attr->value) ? impl::get_value_double(_attr->value) : def;
+		if (!_attr) return def;
+		const char_t* value = _attr->value;
+		return value ? impl::get_value_double(value) : def;
 	}
 
 	PUGI__FN float xml_attribute::as_float(float def) const
 	{
-		return (_attr && _attr->value) ? impl::get_value_float(_attr->value) : def;
+		if (!_attr) return def;
+		const char_t* value = _attr->value;
+		return value ? impl::get_value_float(value) : def;
 	}
 
 	PUGI__FN bool xml_attribute::as_bool(bool def) const
 	{
-		return (_attr && _attr->value) ? impl::get_value_bool(_attr->value) : def;
+		if (!_attr) return def;
+		const char_t* value = _attr->value;
+		return value ? impl::get_value_bool(value) : def;
 	}
 
 #ifdef PUGIXML_HAS_LONG_LONG
 	PUGI__FN long long xml_attribute::as_llong(long long def) const
 	{
-		return (_attr && _attr->value) ? impl::get_value_llong(_attr->value) : def;
+		if (!_attr) return def;
+		const char_t* value = _attr->value;
+		return value ? impl::get_value_llong(value) : def;
 	}
 
 	PUGI__FN unsigned long long xml_attribute::as_ullong(unsigned long long def) const
 	{
-		return (_attr && _attr->value) ? impl::get_value_ullong(_attr->value) : def;
+		if (!_attr) return def;
+		const char_t* value = _attr->value;
+		return value ? impl::get_value_ullong(value) : def;
 	}
 #endif
 
@@ -5242,12 +5281,16 @@ namespace pugi
 
 	PUGI__FN const char_t* xml_attribute::name() const
 	{
-		return (_attr && _attr->name) ? _attr->name + 0 : PUGIXML_TEXT("");
+		if (!_attr) return PUGIXML_TEXT("");
+		const char_t* name = _attr->name;
+		return name ? name : PUGIXML_TEXT("");
 	}
 
 	PUGI__FN const char_t* xml_attribute::value() const
 	{
-		return (_attr && _attr->value) ? _attr->value + 0 : PUGIXML_TEXT("");
+		if (!_attr) return PUGIXML_TEXT("");
+		const char_t* value = _attr->value;
+		return value ? value : PUGIXML_TEXT("");
 	}
 
 	PUGI__FN size_t xml_attribute::hash_value() const
@@ -5329,6 +5372,13 @@ namespace pugi
 		return impl::strcpy_insitu(_attr->name, _attr->header, impl::xml_memory_page_name_allocated_mask, rhs, impl::strlength(rhs));
 	}
 
+	PUGI__FN bool xml_attribute::set_value(const char_t* rhs, size_t sz)
+	{
+		if (!_attr) return false;
+
+		return impl::strcpy_insitu(_attr->value, _attr->header, impl::xml_memory_page_value_allocated_mask, rhs, sz);
+	}
+
 	PUGI__FN bool xml_attribute::set_value(const char_t* rhs)
 	{
 		if (!_attr) return false;
@@ -5521,7 +5571,9 @@ namespace pugi
 
 	PUGI__FN const char_t* xml_node::name() const
 	{
-		return (_root && _root->name) ? _root->name + 0 : PUGIXML_TEXT("");
+		if (!_root) return PUGIXML_TEXT("");
+		const char_t* name = _root->name;
+		return name ? name : PUGIXML_TEXT("");
 	}
 
 	PUGI__FN xml_node_type xml_node::type() const
@@ -5531,7 +5583,9 @@ namespace pugi
 
 	PUGI__FN const char_t* xml_node::value() const
 	{
-		return (_root && _root->value) ? _root->value + 0 : PUGIXML_TEXT("");
+		if (!_root) return PUGIXML_TEXT("");
+		const char_t* value = _root->value;
+		return value ? value : PUGIXML_TEXT("");
 	}
 
 	PUGI__FN xml_node xml_node::child(const char_t* name_) const
@@ -5539,7 +5593,11 @@ namespace pugi
 		if (!_root) return xml_node();
 
 		for (xml_node_struct* i = _root->first_child; i; i = i->next_sibling)
-			if (i->name && impl::strequal(name_, i->name)) return xml_node(i);
+		{
+			const char_t* iname = i->name;
+			if (iname && impl::strequal(name_, iname))
+				return xml_node(i);
+		}
 
 		return xml_node();
 	}
@@ -5549,8 +5607,11 @@ namespace pugi
 		if (!_root) return xml_attribute();
 
 		for (xml_attribute_struct* i = _root->first_attribute; i; i = i->next_attribute)
-			if (i->name && impl::strequal(name_, i->name))
+		{
+			const char_t* iname = i->name;
+			if (iname && impl::strequal(name_, iname))
 				return xml_attribute(i);
+		}
 
 		return xml_attribute();
 	}
@@ -5560,7 +5621,11 @@ namespace pugi
 		if (!_root) return xml_node();
 
 		for (xml_node_struct* i = _root->next_sibling; i; i = i->next_sibling)
-			if (i->name && impl::strequal(name_, i->name)) return xml_node(i);
+		{
+			const char_t* iname = i->name;
+			if (iname && impl::strequal(name_, iname))
+				return xml_node(i);
+		}
 
 		return xml_node();
 	}
@@ -5575,7 +5640,11 @@ namespace pugi
 		if (!_root) return xml_node();
 
 		for (xml_node_struct* i = _root->prev_sibling_c; i->next_sibling; i = i->prev_sibling_c)
-			if (i->name && impl::strequal(name_, i->name)) return xml_node(i);
+		{
+			const char_t* iname = i->name;
+			if (iname && impl::strequal(name_, iname))
+				return xml_node(i);
+		}
 
 		return xml_node();
 	}
@@ -5591,24 +5660,30 @@ namespace pugi
 
 		// optimistically search from hint up until the end
 		for (xml_attribute_struct* i = hint; i; i = i->next_attribute)
-			if (i->name && impl::strequal(name_, i->name))
+		{
+			const char_t* iname = i->name;
+			if (iname && impl::strequal(name_, iname))
 			{
 				// update hint to maximize efficiency of searching for consecutive attributes
 				hint_._attr = i->next_attribute;
 
 				return xml_attribute(i);
 			}
+		}
 
 		// wrap around and search from the first attribute until the hint
 		// 'j' null pointer check is technically redundant, but it prevents a crash in case the assertion above fails
 		for (xml_attribute_struct* j = _root->first_attribute; j && j != hint; j = j->next_attribute)
-			if (j->name && impl::strequal(name_, j->name))
+		{
+			const char_t* jname = j->name;
+			if (jname && impl::strequal(name_, jname))
 			{
 				// update hint to maximize efficiency of searching for consecutive attributes
 				hint_._attr = j->next_attribute;
 
 				return xml_attribute(j);
 			}
+		}
 
 		return xml_attribute();
 	}
@@ -5616,9 +5691,8 @@ namespace pugi
 	PUGI__FN xml_node xml_node::previous_sibling() const
 	{
 		if (!_root) return xml_node();
-
+		xml_node_struct* prev = _root->prev_sibling_c;
-		if (_root->prev_sibling_c->next_sibling) return xml_node(_root->prev_sibling_c);
+		return prev->next_sibling ? xml_node(prev) : xml_node();
-		else return xml_node();
 	}
 
 	PUGI__FN xml_node xml_node::parent() const
@@ -5645,8 +5719,11 @@ namespace pugi
 			return _root->value;
 
 		for (xml_node_struct* i = _root->first_child; i; i = i->next_sibling)
-			if (impl::is_text_node(i) && i->value)
+		{
-				return i->value;
+			const char_t* ivalue = i->value;
+			if (impl::is_text_node(i) && ivalue)
+				return ivalue;
+		}
 
 		return PUGIXML_TEXT("");
 	}
@@ -5658,22 +5735,28 @@ namespace pugi
 
 	PUGI__FN xml_attribute xml_node::first_attribute() const
 	{
-		return _root ? xml_attribute(_root->first_attribute) : xml_attribute();
+		if (!_root) return xml_attribute();
+		return xml_attribute(_root->first_attribute);
 	}
 
 	PUGI__FN xml_attribute xml_node::last_attribute() const
 	{
-		return _root && _root->first_attribute ? xml_attribute(_root->first_attribute->prev_attribute_c) : xml_attribute();
+		if (!_root) return xml_attribute();
+		xml_attribute_struct* first = _root->first_attribute;
+		return first ? xml_attribute(first->prev_attribute_c) : xml_attribute();
 	}
 
 	PUGI__FN xml_node xml_node::first_child() const
 	{
-		return _root ? xml_node(_root->first_child) : xml_node();
+		if (!_root) return xml_node();
+		return xml_node(_root->first_child);
 	}
 
 	PUGI__FN xml_node xml_node::last_child() const
 	{
-		return _root && _root->first_child ? xml_node(_root->first_child->prev_sibling_c) : xml_node();
+		if (!_root) return xml_node();
+		xml_node_struct* first = _root->first_child;
+		return first ? xml_node(first->prev_sibling_c) : xml_node();
 	}
 
 	PUGI__FN bool xml_node::set_name(const char_t* rhs)
@@ -5686,6 +5769,16 @@ namespace pugi
 		return impl::strcpy_insitu(_root->name, _root->header, impl::xml_memory_page_name_allocated_mask, rhs, impl::strlength(rhs));
 	}
 
+	PUGI__FN bool xml_node::set_value(const char_t* rhs, size_t sz)
+	{
+		xml_node_type type_ = _root ? PUGI__NODETYPE(_root) : node_null;
+
+		if (type_ != node_pcdata && type_ != node_cdata && type_ != node_comment && type_ != node_pi && type_ != node_doctype)
+			return false;
+
+		return impl::strcpy_insitu(_root->value, _root->header, impl::xml_memory_page_value_allocated_mask, rhs, sz);
+	}
+
 	PUGI__FN bool xml_node::set_value(const char_t* rhs)
 	{
 		xml_node_type type_ = _root ? PUGI__NODETYPE(_root) : node_null;
@@ -6199,12 +6292,22 @@ namespace pugi
 		if (!_root) return xml_node();
 
 		for (xml_node_struct* i = _root->first_child; i; i = i->next_sibling)
-			if (i->name && impl::strequal(name_, i->name))
+		{
+			const char_t* iname = i->name;
+			if (iname && impl::strequal(name_, iname))
 			{
 				for (xml_attribute_struct* a = i->first_attribute; a; a = a->next_attribute)
-					if (a->name && impl::strequal(attr_name, a->name) && impl::strequal(attr_value, a->value ? a->value + 0 : PUGIXML_TEXT("")))
+				{
+					const char_t* aname = a->name;
+					if (aname && impl::strequal(attr_name, aname))
+					{
+						const char_t* avalue = a->value;
+						if (impl::strequal(attr_value, avalue ? avalue : PUGIXML_TEXT("")))
 							return xml_node(i);
 					}
+				}
+			}
+		}
 
 		return xml_node();
 	}
@@ -6215,8 +6318,15 @@ namespace pugi
 
 		for (xml_node_struct* i = _root->first_child; i; i = i->next_sibling)
 			for (xml_attribute_struct* a = i->first_attribute; a; a = a->next_attribute)
-				if (a->name && impl::strequal(attr_name, a->name) && impl::strequal(attr_value, a->value ? a->value + 0 : PUGIXML_TEXT("")))
+			{
+				const char_t* aname = a->name;
+				if (aname && impl::strequal(attr_name, aname))
+				{
+					const char_t* avalue = a->value;
+					if (impl::strequal(attr_value, avalue ? avalue : PUGIXML_TEXT("")))
 						return xml_node(i);
+				}
+			}
 
 		return xml_node();
 	}
@@ -6230,8 +6340,9 @@ namespace pugi
 
 		for (xml_node_struct* i = _root; i; i = i->parent)
 		{
+			const char_t* iname = i->name;
 			offset += (i != _root);
-			offset += i->name ? impl::strlength(i->name) : 0;
+			offset += iname ? impl::strlength(iname) : 0;
 		}
 
 		string_t result;
@@ -6242,12 +6353,13 @@ namespace pugi
 			if (j != _root)
 				result[--offset] = delimiter;
 
-			if (j->name)
+			const char_t* jname = j->name;
+			if (jname)
 			{
-				size_t length = impl::strlength(j->name);
+				size_t length = impl::strlength(jname);
 
 				offset -= length;
-				memcpy(&result[offset], j->name, length * sizeof(char_t));
+				memcpy(&result[offset], jname, length * sizeof(char_t));
 			}
 		}
 
@@ -6285,7 +6397,8 @@ namespace pugi
 		{
 			for (xml_node_struct* j = context._root->first_child; j; j = j->next_sibling)
 			{
-				if (j->name && impl::strequalrange(j->name, path_segment, static_cast<size_t>(path_segment_end - path_segment)))
+				const char_t* jname = j->name;
+				if (jname && impl::strequalrange(jname, path_segment, static_cast<size_t>(path_segment_end - path_segment)))
 				{
 					xml_node subsearch = xml_node(j).first_element_by_path(next_segment, delimiter);
 
@@ -6477,68 +6590,84 @@ namespace pugi
 	PUGI__FN const char_t* xml_text::get() const
 	{
 		xml_node_struct* d = _data();
-
+		if (!d) return PUGIXML_TEXT("");
-		return (d && d->value) ? d->value + 0 : PUGIXML_TEXT("");
+		const char_t* value = d->value;
+		return value ? value : PUGIXML_TEXT("");
 	}
 
 	PUGI__FN const char_t* xml_text::as_string(const char_t* def) const
 	{
 		xml_node_struct* d = _data();
-
+		if (!d) return def;
-		return (d && d->value) ? d->value + 0 : def;
+		const char_t* value = d->value;
+		return value ? value : def;
 	}
 
 	PUGI__FN int xml_text::as_int(int def) const
 	{
 		xml_node_struct* d = _data();
-
+		if (!d) return def;
-		return (d && d->value) ? impl::get_value_int(d->value) : def;
+		const char_t* value = d->value;
+		return value ? impl::get_value_int(value) : def;
 	}
 
 	PUGI__FN unsigned int xml_text::as_uint(unsigned int def) const
 	{
 		xml_node_struct* d = _data();
-
+		if (!d) return def;
-		return (d && d->value) ? impl::get_value_uint(d->value) : def;
+		const char_t* value = d->value;
+		return value ? impl::get_value_uint(value) : def;
 	}
 
 	PUGI__FN double xml_text::as_double(double def) const
 	{
 		xml_node_struct* d = _data();
-
+		if (!d) return def;
-		return (d && d->value) ? impl::get_value_double(d->value) : def;
+		const char_t* value = d->value;
+		return value ? impl::get_value_double(value) : def;
 	}
 
 	PUGI__FN float xml_text::as_float(float def) const
 	{
 		xml_node_struct* d = _data();
-
+		if (!d) return def;
-		return (d && d->value) ? impl::get_value_float(d->value) : def;
+		const char_t* value = d->value;
+		return value ? impl::get_value_float(value) : def;
 	}
 
 	PUGI__FN bool xml_text::as_bool(bool def) const
 	{
 		xml_node_struct* d = _data();
-
+		if (!d) return def;
-		return (d && d->value) ? impl::get_value_bool(d->value) : def;
+		const char_t* value = d->value;
+		return value ? impl::get_value_bool(value) : def;
 	}
 
 #ifdef PUGIXML_HAS_LONG_LONG
 	PUGI__FN long long xml_text::as_llong(long long def) const
 	{
 		xml_node_struct* d = _data();
-
+		if (!d) return def;
-		return (d && d->value) ? impl::get_value_llong(d->value) : def;
+		const char_t* value = d->value;
+		return value ? impl::get_value_llong(value) : def;
 	}
 
 	PUGI__FN unsigned long long xml_text::as_ullong(unsigned long long def) const
 	{
 		xml_node_struct* d = _data();
-
+		if (!d) return def;
-		return (d && d->value) ? impl::get_value_ullong(d->value) : def;
+		const char_t* value = d->value;
+		return value ? impl::get_value_ullong(value) : def;
 	}
 #endif
 
+	PUGI__FN bool xml_text::set(const char_t* rhs, size_t sz)
+	{
+		xml_node_struct* dn = _data_new();
+
+		return dn ? impl::strcpy_insitu(dn->value, dn->header, impl::xml_memory_page_value_allocated_mask, rhs, sz) : false;
+	}
+
 	PUGI__FN bool xml_text::set(const char_t* rhs)
 	{
 		xml_node_struct* dn = _data_new();
@@ -7294,7 +7423,7 @@ namespace pugi
 		using impl::auto_deleter; // MSVC7 workaround
 		auto_deleter<FILE> file(impl::open_file(path_, (flags & format_save_file_text) ? "w" : "wb"), impl::close_file);
 
-		return impl::save_file_impl(*this, file.data, indent, flags, encoding);
+		return impl::save_file_impl(*this, file.data, indent, flags, encoding) && fclose(file.release()) == 0;
 	}
 
 	PUGI__FN bool xml_document::save_file(const wchar_t* path_, const char_t* indent, unsigned int flags, xml_encoding encoding) const
@@ -7302,7 +7431,7 @@ namespace pugi
 		using impl::auto_deleter; // MSVC7 workaround
 		auto_deleter<FILE> file(impl::open_file_wide(path_, (flags & format_save_file_text) ? L"w" : L"wb"), impl::close_file);
 
-		return impl::save_file_impl(*this, file.data, indent, flags, encoding);
+		return impl::save_file_impl(*this, file.data, indent, flags, encoding) && fclose(file.release()) == 0;
 	}
 
 	PUGI__FN xml_node xml_document::document_element() const

contrib/pugixml/src/pugixml.hpp

@@ -1,5 +1,5 @@
 /**
- * pugixml parser - version 1.12
+ * pugixml parser - version 1.13
  * --------------------------------------------------------
  * Copyright (C) 2006-2022, by Arseny Kapoulkine (arseny.kapoulkine@gmail.com)
  * Report bugs and download new versions at https://pugixml.org/
@@ -14,7 +14,7 @@
 // Define version macro; evaluates to major * 1000 + minor * 10 + patch so that it's safe to use in less-than comparisons
 // Note: pugixml used major * 100 + minor * 10 + patch format up until 1.9 (which had version identifier 190); starting from pugixml 1.10, the minor version number is two digits
 #ifndef PUGIXML_VERSION
-#	define PUGIXML_VERSION 1120 // 1.12
+#	define PUGIXML_VERSION 1130 // 1.13
 #endif
 
 // Include user configuration file (this can define various configuration macros)
@@ -115,6 +115,8 @@
 #ifndef PUGIXML_NULL
 #	if __cplusplus >= 201103
 #		define PUGIXML_NULL nullptr
+#	elif defined(_MSC_VER) && _MSC_VER >= 1600
+#		define PUGIXML_NULL nullptr
 #	else
 #		define PUGIXML_NULL 0
 #	endif
@@ -416,6 +418,7 @@ namespace pugi
 
 		// Set attribute name/value (returns false if attribute is empty or there is not enough memory)
 		bool set_name(const char_t* rhs);
+		bool set_value(const char_t* rhs, size_t sz);
 		bool set_value(const char_t* rhs);
 
 		// Set attribute value with type conversion (numbers are converted to strings, boolean is converted to "true"/"false")
@@ -550,6 +553,7 @@ namespace pugi
 
 		// Set node name/value (returns false if node is empty, there is not enough memory, or node can not have name/value)
 		bool set_name(const char_t* rhs);
+		bool set_value(const char_t* rhs, size_t sz);
 		bool set_value(const char_t* rhs);
 
 		// Add attribute with specified name. Returns added attribute, or empty attribute on errors.
@@ -775,6 +779,7 @@ namespace pugi
 		bool as_bool(bool def = false) const;
 
 		// Set text (returns false if object is empty or there is not enough memory)
+		bool set(const char_t* rhs, size_t sz);
 		bool set(const char_t* rhs);
 
 		// Set text with type conversion (numbers are converted to strings, boolean is converted to "true"/"false")