private static IntPtr CompileSet(string[] patterns, RureFlags flags, IntPtr options)
{
var patBytes = patterns.Select(Encoding.UTF8.GetBytes).ToArray();
var patLengths = patBytes
.Select(byts => new UIntPtr((uint)byts.Length)).ToArray();
var patByteHandles = patBytes
.Select(a => GCHandle.Alloc(a, GCHandleType.Pinned)).ToArray();
var patBytePinnedPointers = patByteHandles
.Select(h => h.AddrOfPinnedObject()).ToArray();
using (var err = new Error())
{
var compiled = RureFfi.rure_compile_set(patBytePinnedPointers,
patLengths,
new UIntPtr((uint)patLengths.Length),
(uint)flags,
options,
err.Raw);
foreach (var handle in patByteHandles)
{
handle.Free();
}
if (compiled != IntPtr.Zero)
{
return(compiled);
}
throw new RegexCompilationException(err.Message);
}
}
