Function tr_parse_sparam

transformations.c:2831–2895

 */

char *tr_parse_sparam(char *p, str *in, tr_param_t **tp, int skip_param_ws)
{
	char *p0, *ps;
	pv_spec_t *spec = NULL;
	str s;

	while (is_in_str(p, in) && is_ws(*p)) p++;

	if (*p == PV_MARKER) { /* pseudo-variable */
		spec = pkg_malloc(sizeof(pv_spec_t));
		if (spec == NULL) {
			LM_ERR("no more private memory!\n");
			goto error;
		}
		s.s = p;
		s.len = in->s + in->len - p;
		p0 = pv_parse_spec(&s, spec);
		if (p0 == NULL) {
			LM_ERR("invalid spec in substr transformation: %.*s!\n",
				in->len, in->s);
			goto error;
		}
		p = p0;
		*tp = pkg_malloc(sizeof(tr_param_t));
		if (*tp == NULL) {
			LM_ERR("no more private memory!\n");
			goto error;
		}
		memset(*tp, 0, sizeof(tr_param_t));
		(*tp)->type = TR_PARAM_SPEC;
		(*tp)->v.data = (void*)spec;

		return p;
	} else { /* string */
		ps = p;
		while (is_in_str(p, in) && (skip_param_ws || !is_ws(*p))) {
			if ((*p == TR_PARAM_MARKER || *p == TR_RBRACKET) &&
					(p - 1 < ps || *(p - 1) != '\\'))
				break;
			p++;
		}

		if (*p == '\0') {
			LM_ERR("invalid param in transformation: %.*s!!\n",
				in->len, in->s);
			goto error;
		}
		*tp = pkg_malloc(sizeof(tr_param_t));
		if (*tp == NULL) {
			LM_ERR("no more private memory!\n");
			goto error;
		}
		memset(*tp, 0, sizeof(tr_param_t));
		(*tp)->type = TR_PARAM_STRING;
		(*tp)->v.s.s = ps;
		(*tp)->v.s.len = p - ps;

		return p;