static unsafe void Main(string[] args)
{
string helloWorldJson = @"{ ""answer"": 42, ""name"": ""Egor"" }";
ReadOnlySpan <byte> bytes = Encoding.UTF8.GetBytes(helloWorldJson);
// SimdJson is UTF8 only
fixed(byte *ptr = bytes)
{
// SimdJsonN -- N stands for Native, it means we are using Bindings for simdjson native lib
// SimdJson -- fully managed .NET Core 3.0 port
using (ParsedJsonN doc = SimdJsonN.ParseJson(ptr, bytes.Length))
{
Console.WriteLine($"Is json valid:{doc.IsValid}\n");
// open iterator:
using (var iterator = new ParsedJsonIteratorN(doc))
{
while (iterator.MoveForward())
{
if (iterator.IsInteger)
{
Console.WriteLine("integer: " + iterator.GetInteger());
}
if (iterator.IsString)
{
Console.WriteLine("string: " + iterator.GetUtf16String());
}
}
}
}
}
}
public unsafe ulong SimdJsonNUtf16(byte[] data, string fileName, string fileSize)
{
ulong wordsCount = 0;
fixed(byte *dataPtr = data)
{
using (ParsedJsonN doc = SimdJsonN.ParseJson(dataPtr, data.Length))
using (var iterator = new ParsedJsonIteratorN(doc))
{
while (iterator.MoveForward())
{
if (iterator.IsString)
{
if (iterator.GetUtf16String().StartsWith('a')) // UTF16 in SimdJsonN is expected to be slow for now (see https://github.com/lemire/simdjson/pull/101)
{
wordsCount++;
}
}
}
}
}
return(wordsCount);
}