docs: public int getNormalizedColumn(int line, int column) {
          int deltaLine = line - firstLine;
          if (deltaLine < 0 || deltaLine >= lineOffsets.size()) // wrong line information
              return -1;
          int deltaColumn = column - lineOffsets.get(deltaLine);
          if (deltaColumn < 0) // wrong column information
              return -1;
  
          return textOffsets.get(deltaLine) + deltaColumn;
      }