internal ReaderStateMachine(
MemoryPool <char> memoryPool,
char escapeStartChar,
char valueSeparatorChar,
char escapeChar,
RowEndings rowEndings,
ReadHeaders hasHeaders,
char?commentChar
)
{
RowEndings = rowEndings;
HasHeaders = hasHeaders;
switch (HasHeaders)
{
case ReadHeaders.Always:
CurrentState = State.Header_Start;
break;
case ReadHeaders.Never:
CurrentState = State.Record_Start;
break;
default:
Throw.InvalidOperationException($"Unexpected {nameof(ReadHeaders)}: {HasHeaders}");
break;
}
TransitionMatrixHandle = GetTransitionMatrix(RowEndings, escapeStartChar == escapeChar).Pin();
TransitionMatrix = (TransitionRule *)TransitionMatrixHandle.Pointer;
SuppressCharLookupDispose = false;
(MinimumCharacter, CharLookupOffset, CharLookupOwner, CharLookupPin, CharLookup) =
MakeCharacterLookup(memoryPool, escapeStartChar, valueSeparatorChar, escapeChar, commentChar);
}
internal ReaderStateMachine(
CharacterLookup preAllocLookup,
char escapeStartChar,
char escapeChar,
RowEndings rowEndings,
ReadHeaders hasHeaders
)
{
RowEndings = rowEndings;
HasHeaders = hasHeaders;
switch (HasHeaders)
{
case ReadHeaders.Always:
CurrentState = State.Header_Start;
break;
case ReadHeaders.Never:
CurrentState = State.Record_Start;
break;
default:
Throw.InvalidOperationException($"Unexpected {nameof(ReadHeaders)}: {HasHeaders}");
break;
}
TransitionMatrixHandle = GetTransitionMatrix(RowEndings, escapeStartChar == escapeChar).Pin();
TransitionMatrix = (TransitionRule *)TransitionMatrixHandle.Pointer;
SuppressCharLookupDispose = true;
(MinimumCharacter, CharLookupOffset, _, _, CharLookup) = preAllocLookup;
}
internal unsafe void Initialize(
CharacterLookup preAllocLookup,
char?escapeStartChar,
char?escapeChar,
ReadRowEnding rowEndings,
ReadHeader hasHeaders,
bool readingComments,
bool skipLeadingWhitespace,
bool skipTrailingWhitespace
)
{
CharacterLookup = preAllocLookup;
CharLookup = (CharacterType *)preAllocLookup.Memory;
RowEndings = rowEndings;
HasHeaders = hasHeaders;
switch (HasHeaders)
{
case ReadHeader.Always:
CurrentState = State.Header_Start;
break;
case ReadHeader.Never:
CurrentState = State.Record_Start;
break;
default:
Throw.InvalidOperationException($"Unexpected {nameof(ReadHeader)}: {HasHeaders}");
break;
}
TransitionMatrix =
GetTransitionMatrix(
RowEndings,
escapeStartChar.HasValue && escapeStartChar == escapeChar,
readingComments,
skipLeadingWhitespace,
skipTrailingWhitespace,
#if DEBUG
out TransitionMatrixMemoryOffset
#else
out _
#endif
);
}