public CsvWriter(TextWriter writer, CsvSettings settings)
{
this.Writer = writer;
this.Settings = settings;
this.LineAlreadyStarted = false;
this.FormattingCulture = Thread.CurrentThread.CurrentCulture;
}
public CsvParser(TextReader reader, CsvSettings settings)
{
if (reader == null) { throw new ArgumentNullException("reader"); }
if (settings == null) { throw new ArgumentNullException("settings"); }
Initialize(reader, settings);
}
public CsvParser(String csv, CsvSettings settings)
{
if (csv == null) { throw new ArgumentNullException("csv"); }
if (settings == null) { throw new ArgumentNullException("settings"); }
var reader = new StringReader(csv);
this.OwnedReader = reader;
Initialize(reader, settings);
}
internal CsvLexer(CsvSettings settings)
{
if (settings == null) { throw new ArgumentNullException("settings"); }
this.Settings = settings;
this.FieldDelimiter = new CsvLexeme(CsvSyntaxItem.Delimiter, settings.FieldDelimiter.ToString());
this.LineSeparator = new CsvLexeme(CsvSyntaxItem.LineSeparator, settings.RowDelimiter);
this.Quote = new CsvLexeme(CsvSyntaxItem.Quote, settings.QuotingCharacter.ToString());
}
private void Initialize(TextReader reader, CsvSettings settings)
{
var lexer = new CsvLexer(settings);
this.Lexemes = lexer.Scan(reader).GetEnumerator();
}
/// <summary>
/// Parses csv file to rows and values.
/// </summary>
/// <param name="csv"></param>
/// <param name="settings"></param>
/// <returns></returns>
public static String[][] Parse(string csv, CsvSettings settings)
{
if (csv == null) { throw new ArgumentNullException("csv"); }
if (settings == null) { throw new ArgumentNullException("settings"); }
using (CsvParser parser = new CsvParser(csv, settings))
{
return parser.ReadToEnd();
}
}
/// <summary>
/// Splits a single row to a collection of csv items.
/// </summary>
/// <param name="singleRow"></param>
/// <param name="settings"></param>
/// <returns></returns>
public static String[] ParseSingleRow(String singleRow, CsvSettings settings)
{
if (singleRow == null) { throw new ArgumentNullException("singleRow"); }
if (settings == null) { throw new ArgumentNullException("settings"); }
using (CsvParser parser = new CsvParser(singleRow, settings))
{
String[] firstRow = parser.ReadNextRow();
return firstRow;
}
}
/// <summary>
/// Escapes given value based on CSV rules.
/// </summary>
/// <param name="value"></param>
/// <param name="settings"></param>
/// <returns>value suitable for using as single item in csv row.</returns>
public static String FormatValue(String value, CsvSettings settings)
{
if (value == null) { return null; }
if (value.Length == 0) { return value; }
Boolean containsQuote = value.Contains(settings.QuotingCharacter);
if (containsQuote
|| value.Contains(settings.FieldDelimiter)
|| value.Contains(settings.RowDelimiter))
{
return settings.QuotingCharacter
+ (containsQuote
? value.Replace(settings.QuotingCharacter.ToString(), settings.QuotingCharacter.ToString() + settings.QuotingCharacter)
: value)
+ settings.QuotingCharacter;
}
return value;
}
