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Fixed #26866 -- Added format_lazy function

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Added format_lazy function to django.utils.text module.
Useful when dealing with relative complex lazy string concatenations
(e.g. in urls.py when translating urls in regular expressions).
This commit is contained in:
Mattias Loverot 2016-08-24 18:18:17 +02:00 • committed by Claude Paroz
parent cf2cd4053f
commit 9aaeec337e
3 changed files with 55 additions and 2 deletions
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13
django/utils/text.py
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@ -7,7 +7,9 @@ from io import BytesIO
from django.utils import six
from django.utils.encoding import force_text
from django.utils.functional import SimpleLazyObject, keep_lazy, keep_lazy_text
from django.utils.functional import (
SimpleLazyObject, keep_lazy, keep_lazy_text, lazy,
)
from django.utils.safestring import SafeText, mark_safe
from django.utils.six.moves import html_entities
from django.utils.translation import pgettext, ugettext as _, ugettext_lazy
@ -434,3 +436,12 @@ def camel_case_to_spaces(value):
trailing whitespace.
"""
return re_camel_case.sub(r' \1', value).strip().lower()
def _format_lazy(format_string, *args, **kwargs):
"""
Apply str.format() on 'format_string' where format_string, args,
and/or kwargs might be lazy.
"""
return format_string.format(*args, **kwargs)
format_lazy = lazy(_format_lazy, six.text_type)