parseChildLines method
Implementation
List<String?> parseChildLines(BlockParser parser) {
// Grab all of the lines that form the block element.
var childLines = <String?>[];
while (!parser.isDone) {
var match = pattern.firstMatch(parser.current);
if (match == null) break;
childLines.add(match[1]);
parser.advance();
}
return childLines;
}