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Template filters now pass numerical arguments through as numbers.

This was the (undocumented) behaviour prior to r10118 and now it's back
again. It's neither hard nor harmful to maintain compatibility with the
old ways.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@10169 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Malcolm Tredinnick 2009-03-25 03:45:56 +00:00
parent 7f63d0009f
commit 2c6c60cec6
5 changed files with 32 additions and 6 deletions

View File

@ -445,16 +445,17 @@ class TokenParser(object):
self.pointer = i
return s
# This only matches constant *strings* (things in quotes or marked for
# translation). Numbers are treated as variables for implementation reasons
# (so that they retain their type when passed to filters).
constant_string = r"""
(?:%(i18n_open)s%(strdq)s%(i18n_close)s|
%(i18n_open)s%(strsq)s%(i18n_close)s|
%(strdq)s|
%(strsq)s)|
%(num)s
%(strsq)s)
""" % {
'strdq': r'"[^"\\]*(?:\\.[^"\\]*)*"', # double-quoted string
'strsq': r"'[^'\\]*(?:\\.[^'\\]*)*'", # single-quoted string
'num': r'[-+\.]?\d[\d\.e]*', # numeric constant
'i18n_open' : re.escape("_("),
'i18n_close' : re.escape(")"),
}
@ -462,17 +463,18 @@ constant_string = constant_string.replace("\n", "")
filter_raw_string = r"""
^(?P<constant>%(constant)s)|
^(?P<var>[%(var_chars)s]+)|
^(?P<var>[%(var_chars)s]+|%(num)s)|
(?:%(filter_sep)s
(?P<filter_name>\w+)
(?:%(arg_sep)s
(?:
(?P<constant_arg>%(constant)s)|
(?P<var_arg>[%(var_chars)s]+)
(?P<var_arg>[%(var_chars)s]+|%(num)s)
)
)?
)""" % {
'constant': constant_string,
'num': r'[-+\.]?\d[\d\.e]*',
'var_chars': "\w\." ,
'filter_sep': re.escape(FILTER_SEPARATOR),
'arg_sep': re.escape(FILTER_ARGUMENT_SEPARATOR),

View File

@ -0,0 +1,11 @@
from django import test
from django import template
custom_filters = """
>>> t = template.Template("{% load custom %}{{ string|trim:5 }}")
>>> ctxt = template.Context({"string": "abcdefghijklmnopqrstuvwxyz"})
>>> t.render(ctxt)
u"abcde"
"""

View File

@ -0,0 +1,11 @@
from django import template
from django.template.defaultfilters import stringfilter
register = template.Library()
def trim(value, num):
return value[:num]
trim = stringfilter(trim)
register.filter(trim)

View File

@ -18,9 +18,10 @@ from django.utils.translation import activate, deactivate, ugettext as _
from django.utils.safestring import mark_safe
from django.utils.tzinfo import LocalTimezone
from unicode import unicode_tests
from context import context_tests
from custom import custom_filters
from parser import filter_parsing, variable_parsing
from unicode import unicode_tests
try:
from loaders import *
@ -34,6 +35,7 @@ __test__ = {
'unicode': unicode_tests,
'context': context_tests,
'filter_parsing': filter_parsing,
'custom_filters': custom_filters,
}
#################################