public string Process(Table table, string pattern, string code)
{
var output = new StringBuilder();
if (table.NumRows == 0)
return "";
if (string.IsNullOrWhiteSpace(pattern))
pattern = "$EACH\r\n$row\r\n";
var scanner = new Scanner(pattern);
var tokens = scanner.GetAllTokens();
// Add EACH as default section token if 'tokens' does not start with any section token
if (tokens[0].Category != TokenCategory.Each &&
tokens[0].Category != TokenCategory.EachPlus &&
tokens[0].Category != TokenCategory.Once)
{
tokens.Insert(0, new Token(TokenCategory.Each));
}
var tokenList = new TokenList(tokens);
do
{
int rowNoStart;
int rowNoSentinel;
MapSectionTypeToRowNumbers(tokenList, table, out rowNoStart, out rowNoSentinel);
ProcessSection(table, rowNoStart, rowNoSentinel, tokenList, code, output);
} while (tokenList.Current.Category != TokenCategory.EndOfInput);
return output.ToString();
}
private static void MapSectionTypeToRowNumbers(
TokenList tokenList,
Table table,
out int rowNoStart,
out int rowNoSentinel)
{
switch (tokenList.Values[tokenList.Index++].Category)
{
case TokenCategory.Once:
rowNoStart = 0;
rowNoSentinel = 1;
break;
case TokenCategory.Each:
rowNoStart = 0;
rowNoSentinel = table.NumRows;
if (rowNoSentinel == 0)
throw new Exception("Input is empty, but EACH needs at least one row for processing!");
break;
case TokenCategory.EachPlus:
rowNoStart = 1;
rowNoSentinel = table.NumRows;
if (rowNoSentinel == 1)
throw new Exception("Input is empty or has only one row, but EACH needs at least two rows for processing!");
break;
default:
throw new Exception("Section token ($ONCE, $EACH, $EACH+) expected");
}
}
static void Main(string[] args)
{
try
{
if (args.Length != 7)
throw new Exception("Usage: TableTweaker.Console <inputFile> <fieldDelimitter> (quotedFields | unquotedFields) <filter> <patternFile> <codeFile> <outputPath>");
var input = File.ReadAllText(args[0]);
var fieldDelimiter = string.IsNullOrEmpty(args[1]) ? ',' : args[1][0];
var quotedFields = args[2] == "quotedFields";
var filter = string.IsNullOrEmpty(args[3]) ? ".*" : args[2];
var pattern = string.IsNullOrEmpty(args[4]) ? "" : File.ReadAllText(args[3]);
var code = string.IsNullOrEmpty(args[5]) ? "" : File.ReadAllText(args[4]);
var outputPath = args[6];
var engine = Engine.Instance;
engine.FieldDelimiter = fieldDelimiter;
engine.QuotedFields = quotedFields;
var table = new Table(input, engine.FieldDelimiter, engine.QuotedFields, filter);
var stopwatch = new Stopwatch();
stopwatch.Reset();
stopwatch.Start();
var output = engine.Process(table, pattern, code).Replace("\r", "");
stopwatch.Stop();
File.WriteAllText(outputPath, output);
var msg = $"{table.NumRows} filtered input rows processed in {stopwatch.ElapsedMilliseconds} ms";
System.Console.WriteLine(msg);
}
catch (Exception ex)
{
System.Console.WriteLine("*** ERROR: " + ex);
}
#if DEBUG
System.Console.ReadLine();
#endif
}
private void Process()
{
try
{
if (!_windowIsInitialized)
{
return; // called during initialization!
}
using (new WaitCursor())
{
var filter = Filter;
if (string.IsNullOrEmpty(filter))
{
filter = ".*";
}
var input = GetText(TbxInput);
var table = new Table(input, _engine.FieldDelimiter, _engine.QuotedFields, filter);
var pattern = new TextRange(TbxPattern.Document.ContentStart, TbxPattern.Document.ContentEnd).Text;
var code = MyCodeEditor.Text;
_stopwatch.Reset();
_stopwatch.Start();
var output = _engine.Process(table, pattern, code).Replace("\r", "");
_stopwatch.Stop();
SetText(TbxOutput, output);
TblMessage.Text =
$"{TbxInput.Document.Blocks.Count} unfiltered input rows, {table.NumRows} filtered input rows, {TbxOutput.Document.Blocks.Count} output rows ({_stopwatch.ElapsedMilliseconds} ms)";
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, @"TableTweaker");
}
}
private void Process()
{
try
{
if (!_windowIsInitialized)
return; // called during initialization!
using (new WaitCursor())
{
var filter = Filter;
if (string.IsNullOrEmpty(filter))
{
filter = ".*";
}
var input = GetText(TbxInput);
var table = new Table(input, _engine.FieldDelimiter, _engine.QuotedFields, filter);
var pattern = new TextRange(TbxPattern.Document.ContentStart, TbxPattern.Document.ContentEnd).Text;
var code = Editor.Text;
_stopwatch.Reset();
_stopwatch.Start();
var output = _engine.Process(table, pattern, code).Replace("\r", "");
_stopwatch.Stop();
SetText(TbxOutput, output);
TblMessage.Text =
$"{TbxInput.Document.Blocks.Count} unfiltered input rows, {table.NumRows} filtered input rows, {TbxOutput.Document.Blocks.Count} output rows ({_stopwatch.ElapsedMilliseconds} ms)";
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, @"TableTweaker");
}
}
private void ProcessSection(Table table, int rowNoStart, int rowNoSentinel, TokenList tokens, string code, StringBuilder output)
{
var tokensSectionStartIndex = tokens.Index;
for (var rowNo = rowNoStart; rowNo < rowNoSentinel; ++rowNo)
{
var endOfSection = false;
tokens.Index = tokensSectionStartIndex; // reset to 1st token in section
while (true)
{
var token = tokens.Values[tokens.Index++];
string value;
int colIndex;
switch (token.Category)
{
case TokenCategory.Text:
output.Append(token.Value);
break;
case TokenCategory.Dollar:
output.Append("$");
break;
case TokenCategory.HeaderIndex:
colIndex = int.Parse(token.Value);
CheckColIndex(table, colIndex);
value = table.RowFields[0][colIndex];
output.Append(value);
break;
case TokenCategory.InvertedHeaderIndex:
colIndex = table.NumFields - 1 - int.Parse(token.Value);
CheckColIndex(table, colIndex);
value = table.RowFields[0][colIndex];
output.Append(value);
break;
case TokenCategory.FieldIndex:
colIndex = int.Parse(token.Value);
CheckColIndex(table, colIndex);
value = table.RowFields[rowNo][colIndex];
output.Append(value);
break;
case TokenCategory.InvertedFieldIndex:
colIndex = table.NumFields - 1 - int.Parse(token.Value);
CheckColIndex(table, colIndex);
value = table.RowFields[rowNo][colIndex];
output.Append(value);
break;
case TokenCategory.Header:
output.Append(table.Header);
break;
case TokenCategory.Row:
output.Append(table.Rows[rowNo]);
break;
case TokenCategory.RowNum:
output.Append(rowNo);
break;
case TokenCategory.RowNumOne:
output.Append(rowNo + 1);
break;
case TokenCategory.NumFields:
output.Append(table.NumFields);
break;
case TokenCategory.NumRows:
output.Append(table.NumRows);
break;
case TokenCategory.MethodCall:
var pos = token.Value.IndexOfAny("([{<".ToCharArray());
var methodName = token.Value.Substring(0, pos);
var args = token.Value.Substring(pos + 1, token.Value.Length - pos - 2);
// process args
var argsOutput = new StringBuilder();
var argsScanner = new Scanner(args);
var argsTokens = new TokenList(argsScanner.GetAllTokens());
ProcessSection(table, rowNo, rowNo + 1, argsTokens, "", argsOutput);
var encodedArgs = EncodeQuotationMark(argsOutput.ToString());
var methodCall = $"{methodName}({encodedArgs})"; // without terminating ";" to signal scripting engine that it should return the value!
var result = ScriptCSharpCode(code + methodCall);
output.Append(result);
break;
case TokenCategory.Once:
case TokenCategory.Each:
case TokenCategory.EachPlus:
case TokenCategory.EndOfInput:
tokens.Index--;
endOfSection = true;
break;
default:
throw new Exception("No code implemented for token.Category=" + token.Category);
}
if (endOfSection)
break;
}
}
}
public void ProcessQuotationMarkEngineTest()
{
var engine = Engine.Instance;
var table = new Table("A\"B", CommaFieldDelimitter, false, "");
var output = engine.Process(table, "$ToLower(\"$0\")", "public static string ToLower(string s) { return s.ToLower(); }");
Assert.Equal("a\"b", output);
}
private static void CheckColIndex(Table table, int colIndex)
{
if (colIndex < 0)
{
throw new Exception("Column index $i can not be negative!");
}
if (colIndex >= table.NumFields)
{
throw new Exception(
$"Column index ${colIndex} is 0-based and cannot be larger than $numFields ({table.NumFields})!");
}
}
public void CopyQuotationMarkEngineTest()
{
var engine = Engine.Instance;
var table = new Table("A\"B", CommaFieldDelimitter, false, "");
var output = engine.Process(table, "$0", MyCode);
Assert.Equal("A\"B", output);
}
public void AllTokenPatternEngineTest()
{
var engine = Engine.Instance;
var table = new Table(HeaderAndThreeRowsInput, CommaFieldDelimitter, QuotedFields, "");
var output = engine.Process(table, AllTokenPattern, MyCode);
Assert.Equal(HeaderAndThreeRowsAllTokenPatternOutput, output);
}
public void InvertedCopyPatternEngineTest()
{
var engine = Engine.Instance;
var table = new Table(HeaderAndThreeRowsInput, CommaFieldDelimitter, QuotedFields, "");
var output = engine.Process(table, InvertedCopyPattern, "");
Assert.Equal(HeaderAndThreeRowsInput, output);
}
public void EmptyInputEngineTest()
{
var engine = Engine.Instance;
var input = "\r\n";
var table = new Table(input, CommaFieldDelimitter, QuotedFields, "");
var output = engine.Process(table, "", "");
Assert.Equal(input, output);
}
public void TableTestWithQuotedFields()
{
var table = new Table(HeaderAndThreeRowsInputWithQuotedFields, CommaFieldDelimitter, true, ".*");
Assert.NotNull(table);
Assert.Equal(3, table.NumFields);
Assert.Equal(4, table.NumRows);
Assert.Equal("Last Name,First Name,Company", table.Header);
Assert.Equal("Last Name,First Name,Company", table.Rows[0]);
Assert.Equal("Jobs,Steve,Apple", table.Rows[1]);
Assert.Equal("Cook,Tim,Apple", table.Rows[2]);
Assert.Equal("Gates,William \"Bill\",Microsoft", table.Rows[3]);
Assert.Equal("Last Name", table.HeaderFields[0]);
Assert.Equal("First Name", table.HeaderFields[1]);
Assert.Equal("Company", table.HeaderFields[2]);
Assert.Equal("Last Name", table.RowFields[0][0]);
Assert.Equal("First Name", table.RowFields[0][1]);
Assert.Equal("Company", table.RowFields[0][2]);
Assert.Equal("Jobs", table.RowFields[1][0]);
Assert.Equal("Steve", table.RowFields[1][1]);
Assert.Equal("Apple", table.RowFields[1][2]);
Assert.Equal("Cook", table.RowFields[2][0]);
Assert.Equal("Tim", table.RowFields[2][1]);
Assert.Equal("Apple", table.RowFields[2][2]);
Assert.Equal("Gates", table.RowFields[3][0]);
Assert.Equal("William \"Bill\"", table.RowFields[3][1]);
Assert.Equal("Microsoft", table.RowFields[3][2]);
}