Function string_parse_keyvals

retroshare-gui/src/util/stringutil.cpp:195–252

Parses a series of space-separated key[=value|="value"] tokens from * str and returns the mappings in a QHash. If str was unable * to be parsed, ok is set to false. */

 * <b>str</b> and returns the mappings in a QHash. If <b>str</b> was unable
 * to be parsed, <b>ok</b> is set to false. */
QHash<QString,QString>
string_parse_keyvals(const QString &str, bool *ok)
{
  int i, len;
  bool tmp_ok;
  QHash<QString,QString> keyvals;
  
  i = 0;
  len = str.length();
  while (i < len && str[i].isSpace())
    i++; /* Skip initial whitespace */
  while (i < len) {
    QString key, val;
    
    while (i < len && !str[i].isSpace() && str[i] != '=')
      key.append(str[i++]);
      
    if (i < len && str[i] == '=') {
      if (++i < len && str[i] == '\"') {
        /* The value is wrapped in quotes */
        val.append(str[i]);
        while (++i < len) {
          val.append(str[i]);
          if (str[i] == '\\') {
            if (++i == len)
              goto error;
            val.append(str[i]);
          } else if (str[i] == '\"') {
            i++;
            break;
          } 
        }
        val = string_unescape(val, &tmp_ok);
        if (!tmp_ok)
          goto error;
        keyvals.insert(key, val);
      } else {
        /* The value was not wrapped in quotes */
        while (i < len && !str[i].isSpace())
          val.append(str[i++]);
        keyvals.insert(key, val);
      }
    } else {
      /* The key had no value */
      keyvals.insert(key, QString(""));
    }
    while (i < len && str[i].isSpace())
      i++;
  }
  if (ok)
    *ok = true;
  return keyvals;

error:
  if (ok)
    *ok = false;
  return QHash<QString,QString>();
}