Function jl_parse_number

src/cli/config_json_like.c:410–488

}

static int jl_parse_number(jl_parser_t *parser) {
    size_t pos = parser->pos;
    if (pos < parser->length &&
        (parser->text[pos] == '-' || (!parser->strict && parser->text[pos] == '+'))) {
        pos++;
    }
    if (!parser->strict && parser->length - pos >= 8U &&
        memcmp(parser->text + pos, "Infinity", 8U) == 0) {
        parser->pos = pos + 8U;
        return 0;
    }
    if (!parser->strict && parser->length - pos >= 3U &&
        memcmp(parser->text + pos, "NaN", 3U) == 0) {
        parser->pos = pos + 3U;
        return 0;
    }
    if (!parser->strict && parser->length - pos >= 3U && parser->text[pos] == '0' &&
        (parser->text[pos + 1U] == 'x' || parser->text[pos + 1U] == 'X')) {
        pos += 2U;
        size_t digits = pos;
        while (pos < parser->length && jl_is_hex((unsigned char)parser->text[pos])) {
            pos++;
        }
        if (pos == digits) {
            return -1;
        }
        parser->pos = pos;
        return 0;
    }

    bool integer_digits = false;
    if (pos < parser->length && parser->text[pos] == '0') {
        integer_digits = true;
        pos++;
        if (parser->strict && pos < parser->length && parser->text[pos] >= '0' &&
            parser->text[pos] <= '9') {
            return -1;
        }
    } else {
        while (pos < parser->length && parser->text[pos] >= '0' && parser->text[pos] <= '9') {
            pos++;
            integer_digits = true;
        }
    }
    if (parser->strict && !integer_digits) {
        return -1;
    }

    bool fraction_digits = false;
    if (pos < parser->length && parser->text[pos] == '.') {
        pos++;
        while (pos < parser->length && parser->text[pos] >= '0' && parser->text[pos] <= '9') {
            pos++;
            fraction_digits = true;
        }
        if (parser->strict && !fraction_digits) {
            return -1;
        }