remove comments from syslog-ng config

no-comment.awk

function found_single_quote(input, input_length, position) {
	in_squote=1;
	for (i=position; i<=input_length; i++) {
		BUF=BUF input[i];
		switch (input[i]) {
			case "\x27":
				in_squote=0;
				return i;
			default:
				break;
		}
	}
	return input_length;
}
function found_double_quote(input, input_length, position) {
	in_dquote=1
	nbs=0;
	for (i=position; i<=input_length; i++) {
		BUF=BUF input[i];
		switch (input[i]) {
			case "\"":
				if ((nbs % 2) == 1) {
					nbs=0;
				}
				else {
					in_dquote=0;
					return i;
				}
			case "\\":
				nbs++;
				break;
			default:
				nbs=0;
				break;
		}
	}
	return input_length;
}
function process_line_normal(input, input_length, position) {
	for (i=position; i<=input_length; i++) {
			switch (input[i]) {
				case "\x27":
					BUF=BUF input[i];
					i=found_single_quote(input, input_length, i+1);
					break;
				case "\"":
					BUF=BUF input[i];
					i=found_double_quote(input, input_length, i+1);
					break;
				case "#":
					printf "%s\n", BUF;
					BUF="";
					return;
				default:
					BUF=BUF input[i];
					break;
			}
		}
		if ((in_dquote == 1) || (in_squote == 1)) {
			BUF=BUF "\n";
		}
		else {
			printf "%s\n", BUF;
			BUF="";
		}
}
function scan_line(input, input_length) {
	if (in_squote==1) {
		quote_end=found_single_quote(input, input_length, 1);
		process_line_normal(input, input_length, quote_end+1);
	}
	else if (in_dquote==1) {
		quote_end=found_double_quote(input, input_length, 1);
		process_line_normal(input, input_length, quote_end+1);
	}
	else {
		process_line_normal(input, input_length, 1);
	}
}
BEGIN {
	in_dquote=0;
	in_squote=0;
	BUF=""
}
{
	len=split($0, line, "");
	scan_line(line, len);	
}