/*
Example:

----------
1. ERROR in /home/stefan/JavaX-Caches/Temp/1642773472353/UserCode_1642773470538.java (at line 26)
  xg.fillRect(10, 10, 10, 10);
  ^^
xg cannot be resolved
----------
*/

sclass ECJError {
  S file, error;
  int lineNr;
  S codeLine;
  IntRange colRange;
  
  toString { ret "Error on line " + lineNr + ": " + error; }
}

static L<ECJError> parseECJOutputForErrors(S text) {
  new L<ECJError> errors;
  LS lines = lines(text);
  for i over lines: {
    if (startsWith(lines.get(i), "---")) {
      S line = get(lines, i+1);
      //print(line);
      LS groups = regexpFirstGroups("^\\d+\\. ERROR in (.*?) \\(at line (\\d+)\\)$", line);
      if (groups != null) {
        //print(+groups);
        S codeLine = get(lines, i+2);
        S markLine = get(lines, i+3);
        S errorLine = get(lines, i+4);
        //print(+markLine);
        LS markGroups = regexpFirstGroups("^( *)(\\^+)", markLine);
        //print(+markGroups);
        new ECJError e;
        e.file = groups.get(0);
        e.error = errorLine;
        e.lineNr = parseInt(groups.get(1));
        e.codeLine = codeLine;
        int col1 = l(first(markGroups));
        int cols = l(second(markGroups));
        e.colRange = intRangeWithLength(col1+1, cols);
        errors.add(e);
      }
    }
  }
  ret errors;
}