Function parse_rel_bracket

src/cypher/cypher.c:708–727

Parse bracket content of a relationship: [var:TYPE*hops] */

/* Parse bracket content of a relationship: [var:TYPE*hops] */
static int parse_rel_bracket(parser_t *p, cbm_rel_pattern_t *out) {
    /* Optional variable */
    if (check(p, TOK_IDENT) && !check(p, TOK_COLON)) {
        out->variable = heap_strdup(advance(p)->text);
    }
    /* Optional :Types */
    if (match(p, TOK_COLON)) {
        if (parse_rel_types(p, out) < 0) {
            return CBM_NOT_FOUND;
        }
    }
    /* Optional *hop_range */
    if (match(p, TOK_STAR)) {
        parse_hop_range(p, &out->min_hops, &out->max_hops);
    }
    if (!expect(p, TOK_RBRACKET)) {
        return CBM_NOT_FOUND;
    }
    return 0;
}

/* Parse relationship: -[:TYPE|TYPE2*min..max]-> or <-[...]-  */
static int parse_rel(parser_t *p, cbm_rel_pattern_t *out) {