static int re_is_simple_quantifier()

in src/couch_quickjs/quickjs/libregexp.c [932:969]

• 37 lines of code
• 12 McCabe index (conditional complexity)

static int re_is_simple_quantifier(const uint8_t *bc_buf, int bc_buf_len)
{
    int pos, opcode, len, count;
    uint32_t val;

    count = 0;
    pos = 0;
    while (pos < bc_buf_len) {
        opcode = bc_buf[pos];
        len = reopcode_info[opcode].size;
        switch(opcode) {
        case REOP_range:
            val = get_u16(bc_buf + pos + 1);
            len += val * 4;
            goto simple_char;
        case REOP_range32:
            val = get_u16(bc_buf + pos + 1);
            len += val * 8;
            goto simple_char;
        case REOP_char:
        case REOP_char32:
        case REOP_dot:
        case REOP_any:
        simple_char:
            count++;
            break;
        case REOP_line_start:
        case REOP_line_end:
        case REOP_word_boundary:
        case REOP_not_word_boundary:
            break;
        default:
            return -1;
        }
        pos += len;
    }
    return count;
}