Function conninfo_parse

src/interfaces/libpq/fe-connect.c:5694–5851

* Subroutine for parse_connection_string * * Deal with a string containing key=value pairs. */

 * Deal with a string containing key=value pairs.
 */
static PQconninfoOption *
conninfo_parse(const char *conninfo, PQExpBuffer errorMessage,
			   bool use_defaults)
{
	char	   *pname;
	char	   *pval;
	char	   *buf;
	char	   *cp;
	char	   *cp2;
	PQconninfoOption *options;

	/* Make a working copy of PQconninfoOptions */
	options = conninfo_init(errorMessage);
	if (options == NULL)
		return NULL;

	/* Need a modifiable copy of the input string */
	if ((buf = strdup(conninfo)) == NULL)
	{
		appendPQExpBufferStr(errorMessage,
							 libpq_gettext("out of memory\n"));
		PQconninfoFree(options);
		return NULL;
	}
	cp = buf;

	while (*cp)
	{
		/* Skip blanks before the parameter name */
		if (isspace((unsigned char) *cp))
		{
			cp++;
			continue;
		}

		/* Get the parameter name */
		pname = cp;
		while (*cp)
		{
			if (*cp == '=')
				break;
			if (isspace((unsigned char) *cp))
			{
				*cp++ = '\0';
				while (*cp)
				{
					if (!isspace((unsigned char) *cp))
						break;
					cp++;
				}
				break;
			}
			cp++;
		}

		/* Check that there is a following '=' */
		if (*cp != '=')
		{