49 lines
1.7 KiB
Python
49 lines
1.7 KiB
Python
from django.conf import settings
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from django.utils.safestring import mark_safe
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from django.utils import six
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def format(number, decimal_sep, decimal_pos=None, grouping=0, thousand_sep='',
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force_grouping=False):
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"""
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Gets a number (as a number or string), and returns it as a string,
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using formats defined as arguments:
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* decimal_sep: Decimal separator symbol (for example ".")
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* decimal_pos: Number of decimal positions
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* grouping: Number of digits in every group limited by thousand separator
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* thousand_sep: Thousand separator symbol (for example ",")
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"""
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use_grouping = settings.USE_L10N and settings.USE_THOUSAND_SEPARATOR
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use_grouping = use_grouping or force_grouping
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use_grouping = use_grouping and grouping > 0
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# Make the common case fast
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if isinstance(number, int) and not use_grouping and not decimal_pos:
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return mark_safe(six.text_type(number))
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# sign
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sign = ''
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str_number = six.text_type(number)
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if str_number[0] == '-':
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sign = '-'
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str_number = str_number[1:]
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# decimal part
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if '.' in str_number:
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int_part, dec_part = str_number.split('.')
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if decimal_pos is not None:
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dec_part = dec_part[:decimal_pos]
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else:
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int_part, dec_part = str_number, ''
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if decimal_pos is not None:
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dec_part = dec_part + ('0' * (decimal_pos - len(dec_part)))
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if dec_part:
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dec_part = decimal_sep + dec_part
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# grouping
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if use_grouping:
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int_part_gd = ''
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for cnt, digit in enumerate(int_part[::-1]):
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if cnt and not cnt % grouping:
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int_part_gd += thousand_sep
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int_part_gd += digit
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int_part = int_part_gd[::-1]
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return sign + int_part + dec_part
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