private int GetMaxLength(ILAttribute attr)
{
switch (attr.CDataType)
{
case CoreDataType.DATE:
return(10);
case CoreDataType.DATETIME:
return(20);
case CoreDataType.DECIMAL:
return(attr.Length);
case CoreDataType.VARCHAR:
return(attr.Length);
case CoreDataType.INT:
return(11); // 10 + Minus
}
return(0);
}
///
/// Generierung eines einzelnen Cases (zu ParserState)
///
private string GenerateParseAttributeCase(ILInterface ifa, ILAttribute attr)
{
string code = "";
code += $"case {ifa.ShortName}ParserState.IN_{attr.Name.ToUpper()}:\n";
/// Vor Anführungszeichen
code += $" if(substate == {ifa.ShortName}ParserSubstate.INITIAL) {{\n";
code += " if(c == '\"') {\n";
code += $" substate = {ifa.ShortName}ParserSubstate.IN_STRING;\n";
code += " } else if(c == ';') {\n";
// Zum nächsten Attribut weiterschalten
if (attr == ifa.NonCalculatedAttributes.Last())
{
code += $" state = {ifa.ShortName}ParserState.FINAL;\n";
}
else
{
var nextAttr = ifa.NonCalculatedAttributes[ifa.NonCalculatedAttributes.IndexOf(attr) + 1];
code += $" state = {ifa.ShortName}ParserState.IN_{nextAttr.Name.ToUpper()};\n";
}
code += " } else {\n";
code += $" throw new InvalidDataException($\"Ungültiges Zeichen vor {ifa.Name}.{attr.Name} Zeile {{i}}\");\n";
code += " }\n";
/// Nach Anführungszeichen
code += $" }} else if(substate == {ifa.ShortName}ParserSubstate.IN_STRING) {{\n";
code += " if(c == '\"') {\n";
code += $" content.{attr.Name} = buf;\n";
code += " buf = \"\";\n";
code += $" substate = {ifa.ShortName}ParserSubstate.INITIAL;\n";
if (attr == ifa.NonCalculatedAttributes.Last())
{
code += $" state = {ifa.ShortName}ParserState.FINAL;\n";
}
code += " } else {\n";
code += " buf += c;\n";
code += " }\n";
code += " }\n";
code += $" break;\n";
return(code.Indent(" "));
}
private string GetSubstringIfNeeded(ILAttribute attr, ILInterface ifa)
{
return($".Substring(0, {GetMaxLength(attr)})");
}
