Utility/OBJParser: Abort parsing when there's more than one error per two line

Former-commit-id: 37075de6e7d10996af4c30ffcf74ead74b27905f [formerly 25597dd190b82dc40de1eaf7f4c75c9b058784ec]
Former-commit-id: 5383d58fd326b61cce4c415707dd06a0376e6dbe

include/Nazara/Utility/Formats/OBJParser.hpp

@@ -86,7 +86,7 @@ namespace Nz
 			inline void Error(const String& message);
 			inline void Flush() const;
 			inline void Warning(const String& message);
-			inline void UnrecognizedLine(bool error = false);
+			inline bool UnrecognizedLine(bool error = false);
 
 			std::vector<Mesh> m_meshes;
 			std::vector<String> m_materials;
@@ -99,6 +99,7 @@ namespace Nz
 			mutable StringStream m_outputStream;
 			bool m_keepLastLine;
 			unsigned int m_lineCount;
+			unsigned int m_errorCount;
 	};
 }
 

include/Nazara/Utility/Formats/OBJParser.inl

@@ -168,7 +168,7 @@ namespace Nz
 		NazaraWarning(message + " at line #" + String::Number(m_lineCount));
 	}
 
-	inline void OBJParser::UnrecognizedLine(bool error)
+	inline bool OBJParser::UnrecognizedLine(bool error)
 	{
 		String message = "Unrecognized \"" + m_currentLine + '"';
 
@@ -176,6 +176,16 @@ namespace Nz
 			Error(message);
 		else
 			Warning(message);
+
+		m_errorCount++;
+
+		if (m_lineCount > 20 && (m_errorCount * 100 / m_lineCount) > 50)
+		{
+			NazaraError("Aborting parsing because of error percentage");
+			return false; //< Abort parsing if error percentage is too high
+		}
+
+		return true;
 	}
 }
 

src/Nazara/Utility/Formats/OBJParser.cpp

@@ -97,7 +97,8 @@ namespace Nz
 					if (m_currentLine.GetSize() < 7) // Since we only treat triangles, this is the minimum length of a face line (f 1 2 3)
 					{
 						#if NAZARA_UTILITY_STRICT_RESOURCE_PARSING
-						UnrecognizedLine();
+						if (!UnrecognizedLine())
+							return false;
 						#endif
 						break;
 					}
@@ -106,7 +107,8 @@ namespace Nz
 					if (vertexCount < 3)
 					{
 						#if NAZARA_UTILITY_STRICT_RESOURCE_PARSING
-						UnrecognizedLine();
+						if (!UnrecognizedLine())
+							return false;
 						#endif
 						break;
 					}
@@ -138,7 +140,8 @@ namespace Nz
 									if (std::sscanf(&m_currentLine[pos], "%d%n", &p, &offset) != 1)
 									{
 										#if NAZARA_UTILITY_STRICT_RESOURCE_PARSING
-										UnrecognizedLine();
+										if (!UnrecognizedLine())
+											return false;
 										#endif
 										error = true;
 										break;
@@ -217,7 +220,8 @@ namespace Nz
 				case 'm': //< MTLLib
 					#if NAZARA_UTILITY_STRICT_RESOURCE_PARSING
 					if (m_currentLine.GetWord(0).ToLower() != "mtllib")
-						UnrecognizedLine();
+						if (!UnrecognizedLine())
+							return false;
 					#endif
 
 					m_mtlLib = m_currentLine.SubString(m_currentLine.GetWordPosition(1));
@@ -229,7 +233,8 @@ namespace Nz
 					if (m_currentLine.GetSize() <= 2 || m_currentLine[1] != ' ')
 					{
 						#if NAZARA_UTILITY_STRICT_RESOURCE_PARSING
-						UnrecognizedLine();
+						if (!UnrecognizedLine())
+							return false;
 						#endif
 						break;
 					}
@@ -238,7 +243,8 @@ namespace Nz
 					if (objectName.IsEmpty())
 					{
 						#if NAZARA_UTILITY_STRICT_RESOURCE_PARSING
-						UnrecognizedLine();
+						if (!UnrecognizedLine())
+							return false;
 						#endif
 						break;
 					}
@@ -254,17 +260,20 @@ namespace Nz
 					{
 						String param = m_currentLine.SubString(2);
 						if (param != "all" && param != "on" && param != "off" && !param.IsNumber())
-							UnrecognizedLine();
+						{
+							if (!UnrecognizedLine())
+								return false;
+						}
 					}
-					else
+					else if (!UnrecognizedLine())
-						UnrecognizedLine();
+						return false;
 					break;
 					#endif
 
 				case 'u': //< Usemtl
 					#if NAZARA_UTILITY_STRICT_RESOURCE_PARSING
-					if (m_currentLine.GetWord(0) != "usemtl")
+					if (m_currentLine.GetWord(0) != "usemtl" && !UnrecognizedLine())
-						UnrecognizedLine();
+						return false;
 					#endif
 
 					matName = m_currentLine.SubString(m_currentLine.GetWordPosition(1));
@@ -272,7 +281,8 @@ namespace Nz
 					if (matName.IsEmpty())
 					{
 						#if NAZARA_UTILITY_STRICT_RESOURCE_PARSING
-						UnrecognizedLine();
+						if (!UnrecognizedLine())
+							return false;
 						#endif
 						break;
 					}
@@ -288,8 +298,8 @@ namespace Nz
 						if (paramCount >= 1)
 							m_positions.push_back(vertex);
 						#if NAZARA_UTILITY_STRICT_RESOURCE_PARSING
-						else
+						else if (!UnrecognizedLine())
-							UnrecognizedLine();
+							false;
 						#endif
 					}
 					else if (word == "vn")
@@ -299,8 +309,8 @@ namespace Nz
 						if (paramCount == 3)
 							m_normals.push_back(normal);
 						#if NAZARA_UTILITY_STRICT_RESOURCE_PARSING
-						else
+						else if (!UnrecognizedLine())
-							UnrecognizedLine();
+							false;
 						#endif
 					}
 					else if (word == "vt")
@@ -310,13 +320,13 @@ namespace Nz
 						if (paramCount >= 2)
 							m_texCoords.push_back(uvw);
 						#if NAZARA_UTILITY_STRICT_RESOURCE_PARSING
-						else
+						else if (!UnrecognizedLine())
-							UnrecognizedLine();
+							false;
 						#endif
 					}
 					#if NAZARA_UTILITY_STRICT_RESOURCE_PARSING
-					else
+					else if (!UnrecognizedLine())
-						UnrecognizedLine();
+						false;
 					#endif
 
 					break;
@@ -324,7 +334,8 @@ namespace Nz
 
 				default:
 					#if NAZARA_UTILITY_STRICT_RESOURCE_PARSING
-					UnrecognizedLine();
+					if (!UnrecognizedLine())
+						return false;
 					#endif
 					break;
 			}