/// <summary>
/// Extract a string from a quoted string, allows for doubling the quotes
/// for example 'o''clock'
/// </summary>
/// <param name="line">Line to extract from (with extra info)</param>
/// <param name="quoteChar">Quote char to remove</param>
/// <param name="allowMultiline">can we have a new line in middle of string</param>
/// <returns>Extracted information</returns>
internal static ExtractedInfo ExtractQuotedString(LineInfo line, char quoteChar, bool allowMultiline)
{
// if (line.mReader == null)
// throw new BadUsageException("The reader can´t be null");
if (line.IsEOL())
{
throw new BadUsageException(
"An empty String found. This can not be parsed like a QuotedString try to use SafeExtractQuotedString");
}
if (line.mLineStr[line.mCurrentPos] != quoteChar)
{
throw new BadUsageException("The source string does not begin with the quote char: " + quoteChar);
}
var res = new StringBuilder(32);
bool firstFound = false;
int i = line.mCurrentPos + 1;
//bool mustContinue = true;
while (line.mLineStr != null)
{
while (i < line.mLineStr.Length)
{
if (line.mLineStr[i] == quoteChar)
{
if (firstFound)
{
// Is an escaped quoted char
res.Append(quoteChar);
firstFound = false;
}
else
{
firstFound = true;
}
}
else
{
if (firstFound)
{
// This was the end of the string
line.mCurrentPos = i;
return(new ExtractedInfo(res.ToString()));
}
else
{
res.Append(line.mLineStr[i]);
}
}
i++;
}
if (firstFound)
{
line.mCurrentPos = i;
return(new ExtractedInfo(res.ToString()));
}
else
{
if (allowMultiline == false)
{
throw new BadUsageException("The current field has an unclosed quoted string. Complete line: " +
res.ToString());
}
line.ReadNextLine();
res.Append(NewLine);
//lines++;
i = 0;
}
}
throw new BadUsageException("The current field has an unclosed quoted string. Complete Filed String: " +
res.ToString());
}
