public WordParser(string text, LogicalDirection direction)
{
__Text = text;
__DirectionToSearch = direction;
if (direction == LogicalDirection.Backward)
{
__State = WordParserState.WitespacesBeforeWord;
}
else
{
if (text.Length == 0)
{
__State = WordParserState.WitespacesBeforeWord;
}
else
{
if (symbols.Contains(__Text[0]))
{
__State = WordParserState.ParsingSymbol;
}
else if (whitespaces.Contains(__Text[0]))
{
__State = WordParserState.WitespacesBeforeWord;
}
else
{
__State = WordParserState.ParsingText;
}
}
}
}
private int Parse(int pos)
{
switch (__State)
{
case WordParserState.WitespacesBeforeWord:
if (__DirectionToSearch == LogicalDirection.Forward)
{
if (!whitespaces.Contains(__Text[pos]))
{
return(pos);
}
}
else
{
if (symbols.Contains(__Text[pos]))
{
__State = WordParserState.ParsingSymbol;
}
else if (!whitespaces.Contains(__Text[pos]))
{
__State = WordParserState.ParsingText;
}
}
break;
case WordParserState.ParsingSymbol:
if (!symbols.Contains(__Text[pos]))
{
return(pos);
}
break;
case WordParserState.ParsingText:
if (symbols.Contains(__Text[pos]))
{
return(pos);
}
if (whitespaces.Contains(__Text[pos]))
{
if (__DirectionToSearch == LogicalDirection.Backward)
{
return(pos);
}
__State = WordParserState.WhitespacesAfterWord;
}
break;
case WordParserState.WhitespacesAfterWord:
if (!whitespaces.Contains(__Text[pos]))
{
return(pos);
}
break;
}
return(-1);
}
public WordParser(string text, LogicalDirection direction)
{
__Text = text;
__DirectionToSearch = direction;
if (direction == LogicalDirection.Backward)
__State = WordParserState.WitespacesBeforeWord;
else
{
if (text.Length == 0)
__State = WordParserState.WitespacesBeforeWord;
else
{
if (symbols.Contains(__Text[0]))
__State = WordParserState.ParsingSymbol;
else if (whitespaces.Contains(__Text[0]))
__State = WordParserState.WitespacesBeforeWord;
else
__State = WordParserState.ParsingText;
}
}
}
private int Parse(int pos)
{
switch (__State)
{
case WordParserState.WitespacesBeforeWord:
if (__DirectionToSearch == LogicalDirection.Forward)
{
if (!whitespaces.Contains(__Text[pos]))
return pos;
}
else
{
if (symbols.Contains(__Text[pos]))
__State = WordParserState.ParsingSymbol;
else if (!whitespaces.Contains(__Text[pos]))
__State = WordParserState.ParsingText;
}
break;
case WordParserState.ParsingSymbol:
if (!symbols.Contains(__Text[pos]))
return pos;
break;
case WordParserState.ParsingText:
if (symbols.Contains(__Text[pos]))
return pos;
if (whitespaces.Contains(__Text[pos]))
{
if (__DirectionToSearch == LogicalDirection.Backward)
return pos;
__State = WordParserState.WhitespacesAfterWord;
}
break;
case WordParserState.WhitespacesAfterWord:
if (!whitespaces.Contains(__Text[pos]))
return pos;
break;
}
return -1;
}
