adding json files for future use

src/JsonUtil.cpp

@@ -0,0 +1,102 @@
+#include "global.h"
+#include "JsonUtil.h"
+#include "RageFile.h"
+#include "RageUtil.h"
+#include "RageLog.h"
+#include "arch/Dialog/Dialog.h"
+#include "json/reader.h"
+#include "json/writer.h"
+
+bool JsonUtil::LoadFromString(Json::Value &root, RString sData, RString &sErrorOut)
+{
+	Json::Reader reader;
+	bool parsingSuccessful = reader.parse(sData, root);
+	if (!parsingSuccessful)
+	{
+		RString err = reader.getFormatedErrorMessages();
+		sErrorOut = ssprintf("JSON: LoadFromFileShowErrors failed: %s", err.c_str());
+		LOG->Warn(sErrorOut);
+		return false;
+	}
+	return true;
+}
+
+bool JsonUtil::LoadFromFileShowErrors(Json::Value &root, RageFileBasic &f)
+{
+	// Optimization opportunity: read this streaming instead of at once
+	RString sData;
+	f.Read(sData, f.GetFileSize());
+	return LoadFromStringShowErrors(root, sData);
+}
+
+bool JsonUtil::LoadFromFileShowErrors(Json::Value &root, const RString &sFile)
+{
+	RageFile f;
+	if(!f.Open(sFile, RageFile::READ))
+	{
+		LOG->Warn("Couldn't open %s for reading: %s", sFile.c_str(), f.GetError().c_str());
+		return false;
+	}
+
+	return LoadFromFileShowErrors(root, f);
+}
+
+bool JsonUtil::LoadFromStringShowErrors(Json::Value &root, RString sData)
+{
+	RString sError;
+	if(!LoadFromString(root, sData, sError))
+	{
+		Dialog::OK(sError, "JSON_PARSE_ERROR");
+		return false;
+	}
+	return true;
+}
+
+bool JsonUtil::WriteFile(const Json::Value &root, const RString &sFile, bool bMinified)
+{
+	std::string s;
+	if(!bMinified)
+	{
+		Json::StyledWriter writer;
+		s = writer.write(root);
+	}
+	else 
+	{
+		Json::FastWriter writer;
+		s = writer.write(root);
+	}
+
+	RageFile f;
+	if(!f.Open(sFile, RageFile::WRITE))
+	{
+		LOG->Warn("Couldn't open %s for reading: %s", sFile.c_str(), f.GetError().c_str());
+		return false;
+	}
+	f.Write(s);
+	return true;
+}
+
+/*
+ * (c) 2001-2004 Chris Danford
+ * All rights reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, and/or sell copies of the Software, and to permit persons to
+ * whom the Software is furnished to do so, provided that the above
+ * copyright notice(s) and this permission notice appear in all copies of
+ * the Software and that both the above copyright notice(s) and this
+ * permission notice appear in supporting documentation.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF
+ * THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS
+ * INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT
+ * OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
+ * OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */