#include <Core/Core.h>
#include <plugin/pcre/pcre.h>

using namespace Upp;

CONSOLE_APP_MAIN
{
	String ss, s = LoadFile("in.txt");
	String p1 = "^((\"(?:[^\"]|\"\")*\"|[^,]*)(,(\"(?:[^\"]|\"\")*\"|[^,]*))*)$";
 	RegExp r0(p1);
 	r0.Match(s);
	Vector<String> field=r0.GetStrings();
 	for (int i=0; i<field.GetCount(); i++) {
	   ss << field[i] << "\n";
	}
	SaveFile("out.txt", ss); 
}

Vector<String> ReadCsvLine(Stream& s, int separator, byte charset)
{
	Vector<String> r;
	bool instring = false;
	String val;
	for(;;) {
		int c = s.Get();
		if(c == '\n' || c < 0) {
			r.Add(ToCharset(CHARSET_UTF8, val, charset));
			return r;
		}
		else
		if(c == separator && !instring) {
			r.Add(ToCharset(CHARSET_UTF8, val, charset));
			val.Clear();
		}
		else
		if(c == '\"') {
			if(instring && s.Term() == '\"') {
				s.Get();
				val.Cat('\"');
			}
			else
				instring = !instring;
		}
		else
		if(c != '\r')
			val.Cat(c);
	}
}