internal ScannerEnumerator(Scanner scanner, ILogging logging)
{
this.scanner = scanner;
this.document = scanner.document;
this.textSource = scanner.textSource;
this.termFactory = scanner.scanAction;
this.logging = logging;
this.cursor = new ScanCursor
{
RootContext = scanner.context,
CurrentMode = scanner.startMode,
Buffer = new char[Scanner.BufferSize],
Cursor = 0,
Limit = 0,
Marker = -1,
Start = 0,
InnerState = 0,
Actions = new int[scanner.MaxActionCount],
ActionCount = 0,
};
cursor.Buffer[0] = Scanner.Sentinel;
this.priorPosition = 0;
this.priorLine = 1;
this.priorColumn = 1;
InitContext();
}
public void Dispose()
{
this.cursor = null;
}
private int Scan1(ScanCursor cursor)
{
char ch;
switch (cursor.InnerState)
{
case 0: goto M0;
case 1: goto MDIGIT;
case 2: goto MSPACE;
default: goto L0;
}
FIN:
return 0;
L0:
// State #0
M0:
ch = cursor.Buffer[cursor.Cursor];
if (ch == Scanner.Sentinel)
{
if (cursor.Limit == cursor.Cursor)
{
cursor.InnerState = 0;
return 1;
}
// Non accept
goto FIN;
}
else if (ch == ' ')
{
goto LSPACE;
}
else if (char.IsDigit(ch))
{
goto LDIGIT;
}
else
{
goto FIN;
}
LDIGIT: // State #1
++cursor.Cursor;
cursor.ActionCount = 1;
cursor.EnvelopeId = 1;
cursor.Actions[0] = 1;
cursor.Marker = cursor.Cursor; // accept
MDIGIT:
ch = cursor.Buffer[cursor.Cursor];
if (ch == Scanner.Sentinel)
{
if (cursor.Limit == cursor.Cursor)
{
cursor.InnerState = 1;
return 1;
}
// Non accept
goto FIN;
}
else if (char.IsDigit(ch))
{
goto LDIGIT;
}
else
{
goto FIN;
}
LSPACE: // State #2
++cursor.Cursor;
cursor.ActionCount = 1;
cursor.Actions[0] = 0;
cursor.EnvelopeId = 0;
cursor.Marker = cursor.Cursor;
MSPACE:
ch = cursor.Buffer[cursor.Cursor];
if (ch == Scanner.Sentinel)
{
if (cursor.Limit == cursor.Cursor)
{
cursor.InnerState = 2;
return 1;
}
goto FIN;
}
else if (ch == ' ')
{
goto LSPACE;
}
else
{
goto FIN;
}
}
