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-rw-r--r--django/utils/numberformat.py42
1 files changed, 42 insertions, 0 deletions
diff --git a/django/utils/numberformat.py b/django/utils/numberformat.py
new file mode 100644
index 0000000000..78ecb2fbdb
--- /dev/null
+++ b/django/utils/numberformat.py
@@ -0,0 +1,42 @@
+from django.conf import settings
+
+def format(number, decimal_sep, decimal_pos, grouping=0, thousand_sep=''):
+ """
+ Gets a number (as a number or string), and returns it as a string,
+ using formats definied 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 ",")
+
+ """
+ # sign
+ if float(number) < 0:
+ sign = '-'
+ else:
+ sign = ''
+ # decimal part
+ str_number = unicode(number)
+ if str_number[0] == '-':
+ str_number = str_number[1:]
+ if '.' in str_number:
+ int_part, dec_part = str_number.split('.')
+ if decimal_pos:
+ dec_part = dec_part[:decimal_pos]
+ else:
+ int_part, dec_part = str_number, ''
+ if decimal_pos:
+ dec_part = dec_part + ('0' * (decimal_pos - len(dec_part)))
+ if dec_part: dec_part = decimal_sep + dec_part
+ # grouping
+ if settings.USE_THOUSAND_SEPARATOR and grouping:
+ int_part_gd = ''
+ for cnt, digit in enumerate(int_part[::-1]):
+ if cnt and not cnt % grouping:
+ int_part_gd += thousand_sep
+ int_part_gd += digit
+ int_part = int_part_gd[::-1]
+
+ return sign + int_part + dec_part
+