formats.py 文件源码

def sanitize_separators(value):
    """
    Sanitizes a value according to the current decimal and
    thousand separator setting. Used with form field input.
    """
    if settings.USE_L10N and isinstance(value, six.string_types):
        parts = []
        decimal_separator = get_format('DECIMAL_SEPARATOR')
        if decimal_separator in value:
            value, decimals = value.split(decimal_separator, 1)
            parts.append(decimals)
        if settings.USE_THOUSAND_SEPARATOR:
            thousand_sep = get_format('THOUSAND_SEPARATOR')
            if thousand_sep == '.' and value.count('.') == 1 and len(value.split('.')[-1]) != 3:
                # Special case where we suspect a dot meant decimal separator (see #22171)
                pass
            else:
                for replacement in {
                        thousand_sep, unicodedata.normalize('NFKD', thousand_sep)}:
                    value = value.replace(replacement, '')
        parts.append(value)
        value = '.'.join(reversed(parts))
    return value