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