writelnAll method
Writes objects
in sequence to the buffer.
Each object is followed by an optional separator
and a newline symbol.
Usage
final b = StringBuffer();
b.writeAllQ([1, 2, 3], ',');
b.toString() == '1,\n'
'2,\n'
'3\n\'
Implementation
void writelnAll(Iterable objects, [String separator = '']) {
var iterator = objects.iterator;
if (!iterator.moveNext()) return;
if (separator.isEmpty) {
do {
writeln(iterator.current);
} while (iterator.moveNext());
} else {
write(iterator.current);
while (iterator.moveNext()) {
write(separator);
write('\n');
write(iterator.current);
}
write('\n');
}
}