/** Parse a string of the form [x1,y1},[x2,y2},...,[xN,yN} into a list of Points ([int,int]) */
public static List<Point> parseString(String str) throws NumberFormatException {
if (StringUtil.isNullString(str)) {
throw new IllegalArgumentException("Must supply non-empty string");
}
ArrayList<Point> res = new ArrayList<Point>();
Perl5Matcher matcher = RegexpUtil.getMatcher();
while (matcher.contains(str, ONE_POINT_PAT)) {
MatchResult matchResult = matcher.getMatch();
String xstr = matchResult.group(1);
String ystr = matchResult.group(2);
str = matchResult.group(3);
try {
int x = Integer.parseInt(xstr);
int y = Integer.parseInt(ystr);
res.add(new Point(x, y));
} catch (NumberFormatException e) {
throw new IllegalArgumentException("bad point [" + xstr + "," + ystr + "] in " + str);
}
}
res.trimToSize();
return res;
}
