private int[][] CompileSlotMap(string slotMapString, int srcSlotCount)
{
var parts = ReadOnlyMemoryUtils.Split(slotMapString.AsMemory(), new[] { ';' }).ToArray();
var slotMap = new int[parts.Length][];
for (int i = 0; i < slotMap.Length; i++)
{
var slotIndices = ReadOnlyMemoryUtils.Split(parts[i], new[] { ',' }).ToArray();
var slots = new int[slotIndices.Length];
slotMap[i] = slots;
for (int j = 0; j < slots.Length; j++)
{
int index;
if (!int.TryParse(slotIndices[j].ToString(), out index) || index < 0 || index >= srcSlotCount)
{
throw Host.Except("Unexpected slot index '{1}' in group {0}. Expected 0 to {2}", i, slotIndices[j], srcSlotCount - 1);
}
slots[j] = index;
}
if (slots.Distinct().Count() < slots.Length)
{
throw Host.Except("Group '{0}' has duplicate slot indices", parts[i]);
}
}
return(slotMap);
}
private void Evaluate(IndentedTextWriter wrt, Delegate del, DataViewType typeRes, DataViewType[] types,
string text, int ichMin, int ichLim)
{
Contracts.AssertValue(del);
Contracts.AssertNonEmpty(types);
var args = new object[types.Length];
var getters = new Func <ReadOnlyMemory <char>, bool> [types.Length];
for (int i = 0; i < getters.Length; i++)
{
getters[i] = GetGetter(i, types[i], args);
}
StringBuilder sb = new StringBuilder();
Action <object> printer = GetPrinter(typeRes, sb);
ReadOnlyMemory <char> chars = text.AsMemory().Slice(ichMin, ichLim - ichMin);
for (bool more = true; more;)
{
ReadOnlyMemory <char> line;
if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
more = ReadOnlyMemoryUtils.SplitOne(chars, '\x0D', out line, out chars);
}
else
{
more = ReadOnlyMemoryUtils.SplitOne(chars, '\x0A', out line, out chars);
}
line = ReadOnlyMemoryUtils.TrimWhiteSpace(line);
if (line.IsEmpty)
{
continue;
}
// Note this "hack" to map _ to empty. It's easier than fully handling quoting and is sufficient
// for these tests.
var vals = ReadOnlyMemoryUtils.Split(line, new char[] { ',' })
.Select(x => ReadOnlyMemoryUtils.TrimWhiteSpace(x))
.Select(x => ReadOnlyMemoryUtils.EqualsStr("_", x) ? ReadOnlyMemory <char> .Empty : x)
.ToArray();
Contracts.Assert(vals.Length == getters.Length);
for (int i = 0; i < getters.Length; i++)
{
if (!getters[i](vals[i]))
{
wrt.Write("*** Parsing {0} Failed *** ", vals[i]);
}
}
var res = del.DynamicInvoke(args);
printer(res);
wrt.WriteLine(sb);
}
}