Method format_float_locale

crates/common/src/format.rs:568–605

Format a float with locale-aware 'n' format.

(
        &self,
        num: f64,
        locale: &LocaleInfo,
    )

    /// Format a float with locale-aware 'n' format.
    pub fn format_float_locale(
        &self,
        num: f64,
        locale: &LocaleInfo,
    ) -> Result<String, FormatSpecError> {
        self.validate_format(FormatType::FixedPoint(Case::Lower))?;
        let precision = self.precision.unwrap_or(6);
        let magnitude = num.abs();

        let raw_magnitude_str = match &self.format_type {
            Some(FormatType::Number(case)) => {
                let precision = if precision == 0 { 1 } else { precision };
                Ok(float::format_general(
                    precision,
                    magnitude,
                    *case,
                    self.alternate_form,
                    false,
                ))
            }
            _ => return self.format_float(num),
        }?;

        let magnitude_str = Self::apply_locale_formatting(raw_magnitude_str, locale);

        let format_sign = self.sign.unwrap_or(FormatSign::Minus);
        let sign_str = if num.is_sign_negative() && !num.is_nan() {
            "-"
        } else {
            match format_sign {
                FormatSign::Plus => "+",
                FormatSign::Minus => "",
                FormatSign::MinusOrSpace => " ",
            }
        };

        self.format_sign_and_align(&AsciiStr::new(&magnitude_str), sign_str, FormatAlign::Right)
    }

    /// Format a complex number with locale-aware 'n' format.
    pub fn format_complex_locale(