Function string_parse_arguments

retroshare-gui/src/util/stringutil.cpp:256–306

Parses a series of command line arguments from str . If str * was unable to be parsed, ok is set to false. */

/** Parses a series of command line arguments from <b>str</b>. If <b>str</b>
 * was unable to be parsed, <b>ok</b> is set to false. */
QStringList
string_parse_arguments(const QString &str, bool *ok)
{
  QStringList args;
  int i, len;
  bool tmp_ok;

  i = 0;
  len = str.length();
  while (i < len && str[i].isSpace())
    i++; /* Skip initial whitespace */
  while (i < len) {
    QString arg;
    
    if (str[i] == '\"') {
      /* The value is wrapped in quotes */
      arg.append(str[i]);
      while (++i < len) {
        arg.append(str[i]);
        if (str[i] == '\\') {
          if (++i == len)
            goto error;
          arg.append(str[i]);
        } else if (str[i] == '\"') {
          i++;
          break;
        } 
      }
      arg = string_unescape(arg, &tmp_ok);
      if (!tmp_ok)
        goto error;
      args << arg;
    } else {
      /* The value was not wrapped in quotes */
      while (i < len && !str[i].isSpace())
        arg.append(str[i++]);
      args << arg;
    }
    while (i < len && str[i].isSpace())
      i++;
  }

  if (ok)
    *ok = true;
  return args;

error:
  if (ok)
    *ok = false;
  return QStringList();
}

/** Formats the list of command line arguments in <b>args</b> as a string.
 * Arguments that contain ' ', '\', or '"' tokens will be escaped and