CStreamLineReader::EEOLStyle CStreamLineReader::x_AdvanceEOLCRLF(void)
{
if (m_AutoEOL) {
EEOLStyle style = x_AdvanceEOLSimple('\n', '\r');
if (style == eEOL_mixed) {
// found an embedded CR
m_EOLStyle = eEOL_cr;
} else if (style != eEOL_crlf) {
m_EOLStyle = eEOL_lf;
}
} else {
string extra;
NcbiGetline(*m_Stream, m_Line, '\n', &m_LastReadSize);
while ( !AtEOF() && !NStr::EndsWith(m_Line, "\r") ) {
SIZE_TYPE extra_count;
m_Line += '\n';
NcbiGetline(*m_Stream, extra, '\n', &extra_count);
m_Line += extra;
m_LastReadSize += extra_count + 1;
}
if (NStr::EndsWith(m_Line, "\r")) {
m_Line.resize(m_Line.size() - 1);
}
}
return m_EOLStyle;
}
String Stream::ReadLine(void)
{
String strRet;
char c;
do {
// read 1 character
Read(&c, sizeof(char));
// if at EOF
if(AtEOF()) {
// we're done here
break;
}
// skip \r
if(c == '\r') {
//WARNING: This can potentially cause problems on certain operating systems
// that work with \r _only_ as a newline character. We should incorporate
// strm_nlmNewLineMode with this in a future version.
continue;
}
// if it's not the terminator
if(c != '\n') {
// he'll be back
strRet += c;
}
} while(c != '\n');
// done, return
return strRet;
}
// throws char *
void CTStream::GetLine_t(char *strBuffer, SLONG slBufferSize, char cDelimiter /*='\n'*/ )
{
// check parameters
ASSERT(strBuffer!=NULL && slBufferSize>0);
// check that the stream can be read
ASSERT(IsReadable());
// letters slider
INDEX iLetters = 0;
// test if EOF reached
if(AtEOF()) {
ThrowF_t(TRANS("EOF reached, file %s"), (const char *) strm_strStreamDescription);
}
// get line from istream
FOREVER
{
char c;
Read_t(&c, 1);
if(AtEOF()) {
// cut off
strBuffer[ iLetters] = 0;
break;
}
// don't read "\r" characters but rather act like they don't exist
if( c != '\r') {
strBuffer[ iLetters] = c;
// stop reading when delimiter loaded
if( strBuffer[ iLetters] == cDelimiter) {
// convert delimiter to zero
strBuffer[ iLetters] = 0;
// jump over delimiter
//Seek_t(1, SD_CUR);
break;
}
// jump to next destination letter
iLetters++;
}
// test if maximum buffer lenght reached
if( iLetters==slBufferSize) {
return;
}
}
}
char Stream::ReadUntil(String &strOut, const String &strCharacters)
{
String ret;
char ccc = '\0';
while(!AtEOF()) {
char cc = ReadChar();
if(strCharacters.Contains(cc)) {
ccc = cc;
break;
}
ret += cc;
}
strOut = ret;
return ccc;
}
