// The line is a continuation of a previous one if:
// 1. it starts with space or horizontal tab;
// 2. it contains at least one token.
void CPatternsFileProcessor::ReadPattern( CTokens& patternTokens )
{
patternTokens.clear();
check_logic( file.is_open() );
check_logic( !tokenizer.empty() );
check_logic( !errorProcessor.HasCriticalErrors() );
if( lineStartsWithSpace() ) {
errorProcessor.AddError( CError(
CLineSegment( 0, tokenizer.front()->Offset + 1 ),
CSharedFileLine( line, lineNumber ),
"a pattern definition is required to be"
" written from the first character of the line" ) );
}
line.clear();
// read rest lines of pattern
while( file.good() ) {
readLine();
if( !lineStartsWithSpace() ) {
break;
}
if( !tokenizeLine() ) {
line.clear();
break;
}
}
patternTokens = move( tokenizer );
skipEmptyLines();
}
void CPatternsFileProcessor::Open( const string& filename )
{
check_logic( !errorProcessor.HasCriticalErrors() );
reset();
file.open( filename, ios::in | ios::binary );
if( !file.is_open() ) {
errorProcessor.AddError( CError( "the file not found", ES_CriticalError ) );
} else if( !skipEmptyLines() && !errorProcessor.HasCriticalErrors() ) {
errorProcessor.AddError( CError( "the file is empty", ES_CriticalError ) );
}
}
void Buffer::skipEmptyLines()
{
// Nothing to be skipped when we reached the end.
if (endOfFile()) return;
QString line = nextLine();
if (line.trimmed().length() == 0)
{
skip(line.length() + 1);
skipEmptyLines();
}
}
