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seq: remove zero padding from parse_decimal_and_exponent

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This adds the same fix applied to `parse_exponent_no_decimal`.
This way we don't need to create large strings
This commit is contained in:
maxer137 2024-04-05 15:01:18 +02:00
parent cdfcae4d4f
commit 0fdefc3767
1 changed files with 6 additions and 25 deletions
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31
src/uu/seq/src/numberparse.rs
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@ -206,7 +206,11 @@ fn parse_decimal_and_exponent(
let minimum: usize = {
let integral_part: f64 = s[..j].parse().map_err(|_| ParseNumberError::Float)?;
if integral_part.is_sign_negative() {
2
if exponent > 0 {
2usize + exponent as usize
} else {
2usize
}
} else {
1
}
@ -233,30 +237,7 @@ fn parse_decimal_and_exponent(
.unwrap()
};
if num_digits_between_decimal_point_and_e <= exponent {
if is_minus_zero_float(s, &val) {
Ok(PreciseNumber::new(
ExtendedBigDecimal::MinusZero,
num_integral_digits,
num_fractional_digits,
))
} else {
let zeros: String = "0".repeat(
(exponent - num_digits_between_decimal_point_and_e)
.try_into()
.unwrap(),
);
let expanded = [&s[0..i], &s[i + 1..j], &zeros].concat();
let n = expanded
.parse::<BigDecimal>()
.map_err(|_| ParseNumberError::Float)?;
Ok(PreciseNumber::new(
ExtendedBigDecimal::BigDecimal(n),
num_integral_digits,
num_fractional_digits,
))
}
} else if is_minus_zero_float(s, &val) {
if is_minus_zero_float(s, &val) {
Ok(PreciseNumber::new(
ExtendedBigDecimal::MinusZero,
num_integral_digits,