private void DetectDelimiter()
{
var text = new string(buffer, 0, charsRead);
while (text.Length > 0)
{
var index = text.IndexOf(newLine);
var line = index > -1 ? text.Substring(0, index + newLine.Length) : text;
var delimiterCounts = new Dictionary <string, int>();
foreach (var delimiter in delimiterValues)
{
// Escape regex special chars to use as regex pattern.
var pattern = Regex.Replace(delimiter, @"([.$^{\[(|)*+?\\])", "\\$1");
delimiterCounts[delimiter] = Regex.Matches(line, pattern).Count;
}
var maxCount = delimiterCounts.OrderByDescending(c => c.Value).First();
if (maxCount.Value > 0)
{
delimiter = maxCount.Key;
delimiterFirstChar = delimiter[0];
configuration.Validate();
break;
}
text = index > -1 ? text.Substring(index + newLine.Length) : string.Empty;
}
}
/// <summary>
/// Initializes a new instance of the <see cref="CsvWriter"/> class.
/// </summary>
/// <param name="writer">The writer.</param>
/// <param name="configuration">The configuration.</param>
public CsvWriter(TextWriter writer, CsvConfiguration configuration)
{
configuration.Validate();
this.writer = writer;
Configuration = configuration;
context = new CsvContext(this);
typeConverterCache = context.TypeConverterCache;
recordManager = new Lazy <RecordManager>(() => ObjectResolver.Current.Resolve <RecordManager>(this));
comment = configuration.Comment;
bufferSize = configuration.BufferSize;
delimiter = configuration.Delimiter;
cultureInfo = configuration.CultureInfo;
dynamicPropertySort = configuration.DynamicPropertySort;
escapeDelimiterString = new string(configuration.Delimiter.SelectMany(c => new[] { configuration.Escape, c }).ToArray());
escapeNewlineString = new string(configuration.NewLine.SelectMany(c => new[] { configuration.Escape, c }).ToArray());
escapeQuoteString = new string(new[] { configuration.Escape, configuration.Quote });
hasHeaderRecord = configuration.HasHeaderRecord;
includePrivateMembers = configuration.IncludePrivateMembers;
injectionCharacters = configuration.InjectionCharacters;
injectionEscapeCharacter = configuration.InjectionEscapeCharacter;
leaveOpen = configuration.LeaveOpen;
mode = configuration.Mode;
newLine = configuration.NewLine;
quote = configuration.Quote;
quoteString = configuration.Quote.ToString();
sanitizeForInjection = configuration.SanitizeForInjection;
shouldQuote = configuration.ShouldQuote;
trimOptions = configuration.TrimOptions;
buffer = new char[bufferSize];
}
/// <summary>
/// Initializes a new instance of the <see cref="CsvParser"/> class.
/// </summary>
/// <param name="reader">The reader.</param>
/// <param name="configuration">The configuration.</param>
public CsvParser(TextReader reader, CsvConfiguration configuration)
{
configuration.Validate();
this.reader = reader;
Configuration = configuration;
Context = new CsvContext(this);
allowComments = configuration.AllowComments;
badDataFound = configuration.BadDataFound;
bufferSize = configuration.BufferSize;
cacheFields = configuration.CacheFields;
comment = configuration.Comment;
countBytes = configuration.CountBytes;
delimiter = configuration.Delimiter;
delimiterFirstChar = configuration.Delimiter[0];
encoding = configuration.Encoding;
escape = configuration.Escape;
ignoreBlankLines = configuration.IgnoreBlankLines;
isNewLineSet = configuration.IsNewLineSet;
leaveOpen = configuration.LeaveOpen;
lineBreakInQuotedFieldIsBadData = configuration.LineBreakInQuotedFieldIsBadData;
newLine = configuration.NewLine;
newLineFirstChar = configuration.NewLine[0];
mode = configuration.Mode;
processFieldBufferSize = configuration.ProcessFieldBufferSize;
quote = configuration.Quote;
whiteSpaceChars = configuration.WhiteSpaceChars;
trimOptions = configuration.TrimOptions;
buffer = new char[bufferSize];
processFieldBuffer = new char[processFieldBufferSize];
fields = new Field[128];
}
private void DetectDelimiter()
{
var text = new string(buffer, 0, charsRead);
var delimiterCounts = new Dictionary <string, int>();
foreach (var delimiter in delimiterValues)
{
// Escape every character to use as regex pattern.
var pattern = Regex.Replace(delimiter, "(.)", "\\$1");
delimiterCounts[delimiter] = Regex.Matches(text, pattern).Count;
}
var maxCount = delimiterCounts.OrderByDescending(c => c.Value).First();
if (maxCount.Value > 0)
{
delimiter = maxCount.Key;
delimiterFirstChar = delimiter[0];
configuration.Validate();
}
}
