public static T GetOption <T>(this Ast.OptionsList optionsList, string name, ScriptRunner runner, ScriptEnv env,
T defaultValue)
{
Ast.Expr valueExpr;
if (optionsList != null && optionsList.Options.TryGetValue(name.ToLower(), out valueExpr))
{
return(runner.EvaluateExpr <T>(valueExpr, env));
}
else
{
return(defaultValue);
}
}
private string GetFilePath()
{
var filePath = _runner.EvaluateExpr <string>(_stmt.FilenameExpr, _env);
if (File.Exists(filePath))
{
return(filePath);
}
else
{
throw new Exception($"The specified file was not found: \"{filePath}\"");
}
}
private string GetFilePath()
{
var filePath = _runner.EvaluateExpr <string>(_stmt.FilenameExpr, _env);
var dirPath = Path.GetDirectoryName(filePath);
if (Directory.Exists(dirPath))
{
return(filePath);
}
else
{
throw new Exception($"The output folder was not found: \"{dirPath}\"");
}
}
private ImportXlsStmtRunner(INotebook notebook, ScriptEnv env, ScriptRunner runner, Ast.ImportXlsStmt stmt)
{
_notebook = notebook;
_env = env;
_runner = runner;
_stmt = stmt;
_filePath = _runner.EvaluateExpr <string>(_stmt.FilenameExpr, _env);
if (!File.Exists(_filePath))
{
throw new Exception($"The specified XLS/XLSX file was not found: \"{_filePath}\"");
}
if (_stmt.WhichSheetExpr != null)
{
_whichSheet = _runner.EvaluateExpr(_stmt.WhichSheetExpr, _env);
}
int?index;
foreach (var option in _stmt.OptionsList.GetOptionKeys())
{
switch (option)
{
case "FIRST_ROW":
_firstRowIndex = _stmt.OptionsList.GetOptionInt(option, _runner, _env, 1, minValue: 1) - 1;
break;
case "LAST_ROW":
var lastRowNum = _stmt.OptionsList.GetOptionInt(option, _runner, _env, 0, minValue: 0);
if (lastRowNum == 0)
{
_lastRowIndex = null;
}
else
{
_lastRowIndex = lastRowNum - 1;
}
break;
case "FIRST_COLUMN":
index = XlsUtil.ColumnRefToIndex(_stmt.OptionsList.GetOption <object>(option, _runner, _env, null));
if (index.HasValue)
{
_firstColumnIndex = index.Value;
}
else
{
throw new Exception($"The {option} option must be a valid column number or string.");
}
break;
case "LAST_COLUMN":
var lastColumnValue = _stmt.OptionsList.GetOption <object>(option, _runner, _env, null);
if (lastColumnValue.Equals(0))
{
_lastColumnIndex = null;
break;
}
index = XlsUtil.ColumnRefToIndex(lastColumnValue);
if (index.HasValue)
{
_lastColumnIndex = index.Value;
}
else
{
throw new Exception($"The {option} option must be a valid column number or string.");
}
break;
case "HEADER_ROW":
_headerRow = _stmt.OptionsList.GetOptionBool(option, _runner, _env, true);
break;
case "TRUNCATE_EXISTING_TABLE":
_truncateExistingTable = _stmt.OptionsList.GetOptionBool(option, _runner, _env, false);
break;
case "TEMPORARY_TABLE":
_temporaryTable = _stmt.OptionsList.GetOptionBool(option, _runner, _env, false);
break;
case "IF_CONVERSION_FAILS":
_ifConversionFails = (IfConversionFails)_stmt.OptionsList.GetOptionLong(
option, _runner, _env, 1, minValue: 1, maxValue: 3);
break;
default:
throw new Exception($"\"{option}\" is not a recognized option name.");
}
}
}