Fixed #14806 -- Added support for contextual translations to the `trans` and `blocktrans` template tags. Thanks to jtiai for the report.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@17015 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Julien Phalip
parent
358e5a8031
commit
26698bc851
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@ -12,7 +12,7 @@ from django.utils.itercompat import is_iterable
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from django.utils.text import (smart_split, unescape_string_literal,
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get_text_list)
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from django.utils.encoding import smart_unicode, force_unicode, smart_str
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from django.utils.translation import ugettext_lazy
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from django.utils.translation import ugettext_lazy, pgettext_lazy
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from django.utils.safestring import (SafeData, EscapeData, mark_safe,
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mark_for_escaping)
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from django.utils.formats import localize
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@ -675,6 +675,7 @@ class Variable(object):
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self.literal = None
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self.lookups = None
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self.translate = False
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self.message_context = None
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try:
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# First try to treat this variable as a number.
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@ -722,6 +723,9 @@ class Variable(object):
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# We're dealing with a literal, so it's already been "resolved"
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value = self.literal
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if self.translate:
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if self.message_context:
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return pgettext_lazy(self.message_context, value)
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else:
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return ugettext_lazy(value)
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return value
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@ -70,15 +70,21 @@ class GetCurrentLanguageBidiNode(Node):
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class TranslateNode(Node):
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def __init__(self, filter_expression, noop, asvar=None):
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def __init__(self, filter_expression, noop, asvar=None,
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message_context=None):
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self.noop = noop
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self.asvar = asvar
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self.message_context = message_context
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self.filter_expression = filter_expression
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if isinstance(self.filter_expression.var, basestring):
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self.filter_expression.var = Variable(u"'%s'" % self.filter_expression.var)
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self.filter_expression.var = Variable(u"'%s'" %
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self.filter_expression.var)
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def render(self, context):
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self.filter_expression.var.translate = not self.noop
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if self.message_context:
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self.filter_expression.var.message_context = (
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self.message_context.resolve(context))
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output = self.filter_expression.resolve(context)
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value = _render_value_in_context(output, context)
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if self.asvar:
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@ -90,12 +96,13 @@ class TranslateNode(Node):
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class BlockTranslateNode(Node):
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def __init__(self, extra_context, singular, plural=None, countervar=None,
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counter=None):
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counter=None, message_context=None):
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self.extra_context = extra_context
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self.singular = singular
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self.plural = plural
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self.countervar = countervar
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self.counter = counter
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self.message_context = message_context
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def render_token_list(self, tokens):
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result = []
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@ -109,6 +116,10 @@ class BlockTranslateNode(Node):
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return ''.join(result), vars
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def render(self, context):
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if self.message_context:
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message_context = self.message_context.resolve(context)
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else:
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message_context = None
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tmp_context = {}
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for var, val in self.extra_context.items():
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tmp_context[var] = val.resolve(context)
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@ -123,8 +134,15 @@ class BlockTranslateNode(Node):
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context[self.countervar] = count
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plural, plural_vars = self.render_token_list(self.plural)
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plural = re.sub(u'%(?!\()', u'%%', plural)
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if message_context:
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result = translation.npgettext(message_context, singular,
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plural, count)
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else:
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result = translation.ungettext(singular, plural, count)
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vars.extend(plural_vars)
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else:
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if message_context:
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result = translation.pgettext(message_context, singular)
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else:
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result = translation.ugettext(singular)
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data = dict([(v, _render_value_in_context(context.get(v, ''), context)) for v in vars])
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@ -290,6 +308,17 @@ def do_translate(parser, token):
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This will just try to translate the contents of
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the variable ``variable``. Make sure that the string
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in there is something that is in the .po file.
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It is possible to store the translated string into a variable::
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{% trans "this is a test" as var %}
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{{ var }}
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Contextual translations are also supported::
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{% trans "this is a test" context "greeting" %}
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This is equivalent to calling pgettext instead of (u)gettext.
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"""
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class TranslateParser(TokenParser):
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def top(self):
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@ -301,7 +330,6 @@ def do_translate(parser, token):
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# backwards compatibility with existing uses of ``trans``
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# where single quote use is supported.
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if value[0] == "'":
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pos = None
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m = re.match("^'([^']+)'(\|.*$)", value)
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if m:
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value = '"%s"%s' % (m.group(1).replace('"','\\"'), m.group(2))
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@ -310,19 +338,24 @@ def do_translate(parser, token):
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noop = False
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asvar = None
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message_context = None
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while self.more():
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tag = self.tag()
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if tag == 'noop':
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noop = True
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elif tag == 'context':
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message_context = parser.compile_filter(self.value())
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elif tag == 'as':
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asvar = self.tag()
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else:
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raise TemplateSyntaxError(
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"only options for 'trans' are 'noop' and 'as VAR.")
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return (value, noop, asvar)
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value, noop, asvar = TranslateParser(token.contents).top()
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return TranslateNode(parser.compile_filter(value), noop, asvar)
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"Only options for 'trans' are 'noop', " \
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"'context \"xxx\"', and 'as VAR'.")
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return value, noop, asvar, message_context
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value, noop, asvar, message_context = TranslateParser(token.contents).top()
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return TranslateNode(parser.compile_filter(value), noop, asvar,
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message_context)
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@register.tag("blocktrans")
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def do_block_translate(parser, token):
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@ -349,6 +382,15 @@ def do_block_translate(parser, token):
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{% blocktrans with foo|filter as bar and baz|filter as boo %}
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{% blocktrans count var|length as count %}
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Contextual translations are supported::
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{% blocktrans with bar=foo|filter context "greeting" %}
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This is {{ bar }}.
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{% endblocktrans %}
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This is equivalent to calling pgettext/npgettext instead of
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(u)gettext/(u)ngettext.
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"""
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bits = token.split_contents()
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@ -369,6 +411,13 @@ def do_block_translate(parser, token):
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if len(value) != 1:
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raise TemplateSyntaxError('"count" in %r tag expected exactly '
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'one keyword argument.' % bits[0])
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elif option == "context":
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try:
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value = remaining_bits.pop(0)
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value = parser.compile_filter(value)
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except Exception:
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raise TemplateSyntaxError('"context" in %r tag expected '
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'exactly one argument.' % bits[0])
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else:
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raise TemplateSyntaxError('Unknown argument for %r tag: %r.' %
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(bits[0], option))
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@ -378,6 +427,10 @@ def do_block_translate(parser, token):
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countervar, counter = options['count'].items()[0]
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else:
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countervar, counter = None, None
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if 'context' in options:
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message_context = options['context']
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else:
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message_context = None
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extra_context = options.get('with', {})
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singular = []
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@ -401,7 +454,7 @@ def do_block_translate(parser, token):
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raise TemplateSyntaxError("'blocktrans' doesn't allow other block tags (seen %r) inside it" % token.contents)
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return BlockTranslateNode(extra_context, singular, plural, countervar,
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counter)
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counter, message_context)
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@register.tag
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def language(parser, token):
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@ -433,12 +433,14 @@ def blankout(src, char):
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"""
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return dot_re.sub(char, src)
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inline_re = re.compile(r"""^\s*trans\s+((?:".*?")|(?:'.*?'))\s*""")
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block_re = re.compile(r"""^\s*blocktrans(?:\s+|$)""")
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context_re = re.compile(r"""^\s+.*context\s+((?:"[^"]*?")|(?:'[^']*?'))\s*""")
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inline_re = re.compile(r"""^\s*trans\s+((?:"[^"]*?")|(?:'[^']*?'))(\s+.*context\s+(?:"[^"]*?")|(?:'[^']*?'))?\s*""")
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block_re = re.compile(r"""^\s*blocktrans(\s+.*context\s+(?:"[^"]*?")|(?:'[^']*?'))?(?:\s+|$)""")
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endblock_re = re.compile(r"""^\s*endblocktrans$""")
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plural_re = re.compile(r"""^\s*plural$""")
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constant_re = re.compile(r"""_\(((?:".*?")|(?:'.*?'))\)""")
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def templatize(src, origin=None):
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"""
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Turns a Django template into something that is understood by xgettext. It
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@ -448,6 +450,7 @@ def templatize(src, origin=None):
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from django.template import (Lexer, TOKEN_TEXT, TOKEN_VAR, TOKEN_BLOCK,
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TOKEN_COMMENT, TRANSLATOR_COMMENT_MARK)
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out = StringIO()
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message_context = None
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intrans = False
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inplural = False
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singular = []
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@ -477,15 +480,22 @@ def templatize(src, origin=None):
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pluralmatch = plural_re.match(t.contents)
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if endbmatch:
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if inplural:
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out.write(' ngettext(%r,%r,count) ' % (''.join(singular), ''.join(plural)))
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if message_context:
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out.write(' npgettext(%r, %r, %r,count) ' % (message_context, ''.join(singular), ''.join(plural)))
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else:
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out.write(' ngettext(%r, %r, count) ' % (''.join(singular), ''.join(plural)))
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for part in singular:
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out.write(blankout(part, 'S'))
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for part in plural:
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out.write(blankout(part, 'P'))
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else:
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if message_context:
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out.write(' pgettext(%r, %r) ' % (message_context, ''.join(singular)))
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else:
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out.write(' gettext(%r) ' % ''.join(singular))
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for part in singular:
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out.write(blankout(part, 'S'))
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message_context = None
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intrans = False
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inplural = False
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singular = []
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@ -515,12 +525,33 @@ def templatize(src, origin=None):
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cmatches = constant_re.findall(t.contents)
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if imatch:
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g = imatch.group(1)
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if g[0] == '"': g = g.strip('"')
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elif g[0] == "'": g = g.strip("'")
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if g[0] == '"':
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g = g.strip('"')
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elif g[0] == "'":
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g = g.strip("'")
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if imatch.group(2):
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# A context is provided
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context_match = context_re.match(imatch.group(2))
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message_context = context_match.group(1)
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if message_context[0] == '"':
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message_context = message_context.strip('"')
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elif message_context[0] == "'":
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message_context = message_context.strip("'")
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out.write(' pgettext(%r, %r) ' % (message_context, g))
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message_context = None
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else:
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out.write(' gettext(%r) ' % g)
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elif bmatch:
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for fmatch in constant_re.findall(t.contents):
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out.write(' _(%s) ' % fmatch)
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if bmatch.group(1):
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# A context is provided
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context_match = context_re.match(bmatch.group(1))
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message_context = context_match.group(1)
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if message_context[0] == '"':
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message_context = message_context.strip('"')
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elif message_context[0] == "'":
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message_context = message_context.strip("'")
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intrans = True
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inplural = False
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singular = []
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@ -191,6 +191,14 @@ Additionally, it's now possible to define translatable URL patterns using
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:ref:`url-internationalization` for more information about the language prefix
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and how to internationalize URL patterns.
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Contextual translation support for ``{% trans %}`` and ``{% blocktrans %}``
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Django 1.3 introduced :ref:`contextual translation<contextual-markers>` support
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in Python files via the ``pgettext`` function. This is now also supported by
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the :ttag:`trans` and :ttag:`blocktrans` template tags using the new
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``context`` keyword.
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Customizable ``SingleObjectMixin`` URLConf kwargs
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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@ -266,6 +266,11 @@ will appear in the .po file as:
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msgid "May"
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msgstr ""
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.. versionadded:: 1.4
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Contextual markers are also supported by the :ttag:`trans` and
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:ttag:`blocktrans` template tags.
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.. _lazy-translations:
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Lazy translation
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@ -453,7 +458,7 @@ It's not possible to mix a template variable inside a string within ``{% trans
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%}``. If your translations require strings with variables (placeholders), use
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``{% blocktrans %}`` instead.
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.. versionchanged:: 1.4
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.. versionadded:: 1.4
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If you'd like to retrieve a translated string without displaying it, you can
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use the following syntax::
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@ -479,6 +484,15 @@ or should be used as arguments for other template tags or filters::
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{% endfor %}
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</p>
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.. versionadded:: 1.4
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``{% trans %}`` also supports :ref:`contextual markers<contextual-markers>`
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using the ``context`` keyword:
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.. code-block:: html+django
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{% trans "May" context "month name" %}
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.. templatetag:: blocktrans
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``blocktrans`` template tag
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@ -560,6 +574,15 @@ be retrieved (and stored) beforehand::
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This is a URL: {{ the_url }}
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{% endblocktrans %}
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.. versionadded:: 1.4
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``{% blocktrans %}`` also supports :ref:`contextual
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markers<contextual-markers>` using the ``context`` keyword:
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.. code-block:: html+django
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{% blocktrans with name=user.username context "greeting" %}Hi {{ name }}{% endblocktrans %}
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.. _template-translation-vars:
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Other tags
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@ -94,6 +94,35 @@ class BasicExtractorTests(ExtractorTests):
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os.remove('./templates/template_with_error.html')
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os.remove('./templates/template_with_error.html.py') # Waiting for #8536 to be fixed
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def test_template_message_context_extractor(self):
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"""
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Ensure that message contexts are correctly extracted for the
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{% trans %} and {% blocktrans %} template tags.
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Refs #14806.
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"""
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os.chdir(self.test_dir)
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management.call_command('makemessages', locale=LOCALE, verbosity=0)
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self.assertTrue(os.path.exists(self.PO_FILE))
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po_contents = open(self.PO_FILE, 'r').read()
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# {% trans %}
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self.assertTrue('msgctxt "Special trans context #1"' in po_contents)
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self.assertTrue("Translatable literal #7a" in po_contents)
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self.assertTrue('msgctxt "Special trans context #2"' in po_contents)
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self.assertTrue("Translatable literal #7b" in po_contents)
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self.assertTrue('msgctxt "Special trans context #3"' in po_contents)
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self.assertTrue("Translatable literal #7c" in po_contents)
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# {% blocktrans %}
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self.assertTrue('msgctxt "Special blocktrans context #1"' in po_contents)
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self.assertTrue("Translatable literal #8a" in po_contents)
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self.assertTrue('msgctxt "Special blocktrans context #2"' in po_contents)
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self.assertTrue("Translatable literal #8b-singular" in po_contents)
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self.assertTrue("Translatable literal #8b-plural" in po_contents)
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self.assertTrue('msgctxt "Special blocktrans context #3"' in po_contents)
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self.assertTrue("Translatable literal #8c-singular" in po_contents)
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self.assertTrue("Translatable literal #8c-plural" in po_contents)
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self.assertTrue('msgctxt "Special blocktrans context #4"' in po_contents)
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self.assertTrue("Translatable literal #8d" in po_contents)
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class JavascriptExtractorTests(ExtractorTests):
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@ -57,3 +57,12 @@ continued here.{% endcomment %}
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{% comment %} Translators: Two-line translator comment #5 -- with non ASCII characters: áéíóúö
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continued here.{% endcomment %}
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{% trans "Translatable literal #6b" %}
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{% trans "Translatable literal #7a" context "Special trans context #1" %}
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{% trans "Translatable literal #7b" as var context "Special trans context #2" %}
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{% trans "Translatable literal #7c" context "Special trans context #3" as var %}
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{% blocktrans context "Special blocktrans context #1" %}Translatable literal #8a{% endblocktrans %}
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{% blocktrans count 2 context "Special blocktrans context #2" %}Translatable literal #8b-singular{% plural %}Translatable literal #8b-plural{% endblocktrans %}
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{% blocktrans context "Special blocktrans context #3" count 2 %}Translatable literal #8c-singular{% plural %}Translatable literal #8c-plural{% endblocktrans %}
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{% blocktrans with a=1 context "Special blocktrans context #4" %}Translatable literal #8d {{ a }}{% endblocktrans %}
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Binary file not shown.
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@ -52,3 +52,27 @@ msgid "%(percent)s%% represents %(num)s object"
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msgid_plural "%(percent)s%% represents %(num)s objects"
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msgstr[0] "%(percent)s%% stellt %(num)s Objekt dar"
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msgstr[1] "%(percent)s%% stellt %(num)s Objekte dar"
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#: models.py:17
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msgctxt "super search"
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msgid "%(number)s super result"
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msgid_plural "%(number)s super results"
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msgstr[0] "%(number)s Super-Ergebnis"
|
||||
msgstr[1] "%(number)s Super-Ergebnisse"
|
||||
|
||||
#: models.py:19
|
||||
msgctxt "other super search"
|
||||
msgid "%(number)s super result"
|
||||
msgid_plural "%(number)s super results"
|
||||
msgstr[0] "%(number)s anderen Super-Ergebnis"
|
||||
msgstr[1] "%(number)s andere Super-Ergebnisse"
|
||||
|
||||
#: models.py:21
|
||||
msgctxt "comment count"
|
||||
msgid "There are %(num_comments)s comments"
|
||||
msgstr "Es gibt %(num_comments)s Kommentare"
|
||||
|
||||
#: models.py:23
|
||||
msgctxt "other comment count"
|
||||
msgid "There are %(num_comments)s comments"
|
||||
msgstr "Andere: Es gibt %(num_comments)s Kommentare"
|
||||
|
|
@ -9,6 +9,7 @@ from threading import local
|
|||
|
||||
from django.conf import settings
|
||||
from django.template import Template, Context
|
||||
from django.template.base import TemplateSyntaxError
|
||||
from django.test import TestCase, RequestFactory
|
||||
from django.test.utils import override_settings
|
||||
from django.utils import translation
|
||||
|
|
@ -96,6 +97,126 @@ class TranslationTests(TestCase):
|
|||
self.assertEqual(pgettext("verb", "May"), u"Kann")
|
||||
self.assertEqual(npgettext("search", "%d result", "%d results", 4) % 4, u"4 Resultate")
|
||||
|
||||
def test_template_tags_pgettext(self):
|
||||
"""
|
||||
Ensure that message contexts are taken into account the {% trans %} and
|
||||
{% blocktrans %} template tags.
|
||||
Refs #14806.
|
||||
"""
|
||||
# Reset translation catalog to include other/locale/de
|
||||
extended_locale_paths = settings.LOCALE_PATHS + (
|
||||
os.path.join(here, 'other', 'locale'),
|
||||
)
|
||||
with self.settings(LOCALE_PATHS=extended_locale_paths):
|
||||
from django.utils.translation import trans_real
|
||||
trans_real._active = local()
|
||||
trans_real._translations = {}
|
||||
with translation.override('de'):
|
||||
|
||||
# {% trans %} -----------------------------------
|
||||
|
||||
# Inexisting context...
|
||||
t = Template('{% load i18n %}{% trans "May" context "unexisting" %}')
|
||||
rendered = t.render(Context())
|
||||
self.assertEqual(rendered, 'May')
|
||||
|
||||
# Existing context...
|
||||
# Using a literal
|
||||
t = Template('{% load i18n %}{% trans "May" context "month name" %}')
|
||||
rendered = t.render(Context())
|
||||
self.assertEqual(rendered, 'Mai')
|
||||
t = Template('{% load i18n %}{% trans "May" context "verb" %}')
|
||||
rendered = t.render(Context())
|
||||
self.assertEqual(rendered, 'Kann')
|
||||
|
||||
# Using a variable
|
||||
t = Template('{% load i18n %}{% trans "May" context message_context %}')
|
||||
rendered = t.render(Context({'message_context': 'month name'}))
|
||||
self.assertEqual(rendered, 'Mai')
|
||||
t = Template('{% load i18n %}{% trans "May" context message_context %}')
|
||||
rendered = t.render(Context({'message_context': 'verb'}))
|
||||
self.assertEqual(rendered, 'Kann')
|
||||
|
||||
# Using a filter
|
||||
t = Template('{% load i18n %}{% trans "May" context message_context|lower %}')
|
||||
rendered = t.render(Context({'message_context': 'MONTH NAME'}))
|
||||
self.assertEqual(rendered, 'Mai')
|
||||
t = Template('{% load i18n %}{% trans "May" context message_context|lower %}')
|
||||
rendered = t.render(Context({'message_context': 'VERB'}))
|
||||
self.assertEqual(rendered, 'Kann')
|
||||
|
||||
# Using 'as'
|
||||
t = Template('{% load i18n %}{% trans "May" context "month name" as var %}Value: {{ var }}')
|
||||
rendered = t.render(Context())
|
||||
self.assertEqual(rendered, 'Value: Mai')
|
||||
t = Template('{% load i18n %}{% trans "May" as var context "verb" %}Value: {{ var }}')
|
||||
rendered = t.render(Context())
|
||||
self.assertEqual(rendered, 'Value: Kann')
|
||||
|
||||
# Mis-uses
|
||||
self.assertRaises(TemplateSyntaxError, Template, '{% load i18n %}{% trans "May" context as var %}{{ var }}')
|
||||
self.assertRaises(TemplateSyntaxError, Template, '{% load i18n %}{% trans "May" as var context %}{{ var }}')
|
||||
|
||||
# {% blocktrans %} ------------------------------
|
||||
|
||||
# Inexisting context...
|
||||
t = Template('{% load i18n %}{% blocktrans context "unexisting" %}May{% endblocktrans %}')
|
||||
rendered = t.render(Context())
|
||||
self.assertEqual(rendered, 'May')
|
||||
|
||||
# Existing context...
|
||||
# Using a literal
|
||||
t = Template('{% load i18n %}{% blocktrans context "month name" %}May{% endblocktrans %}')
|
||||
rendered = t.render(Context())
|
||||
self.assertEqual(rendered, 'Mai')
|
||||
t = Template('{% load i18n %}{% blocktrans context "verb" %}May{% endblocktrans %}')
|
||||
rendered = t.render(Context())
|
||||
self.assertEqual(rendered, 'Kann')
|
||||
|
||||
# Using a variable
|
||||
t = Template('{% load i18n %}{% blocktrans context message_context %}May{% endblocktrans %}')
|
||||
rendered = t.render(Context({'message_context': 'month name'}))
|
||||
self.assertEqual(rendered, 'Mai')
|
||||
t = Template('{% load i18n %}{% blocktrans context message_context %}May{% endblocktrans %}')
|
||||
rendered = t.render(Context({'message_context': 'verb'}))
|
||||
self.assertEqual(rendered, 'Kann')
|
||||
|
||||
# Using a filter
|
||||
t = Template('{% load i18n %}{% blocktrans context message_context|lower %}May{% endblocktrans %}')
|
||||
rendered = t.render(Context({'message_context': 'MONTH NAME'}))
|
||||
self.assertEqual(rendered, 'Mai')
|
||||
t = Template('{% load i18n %}{% blocktrans context message_context|lower %}May{% endblocktrans %}')
|
||||
rendered = t.render(Context({'message_context': 'VERB'}))
|
||||
self.assertEqual(rendered, 'Kann')
|
||||
|
||||
# Using 'count'
|
||||
t = Template('{% load i18n %}{% blocktrans count number=1 context "super search" %}{{ number }} super result{% plural %}{{ number }} super results{% endblocktrans %}')
|
||||
rendered = t.render(Context())
|
||||
self.assertEqual(rendered, '1 Super-Ergebnis')
|
||||
t = Template('{% load i18n %}{% blocktrans count number=2 context "super search" %}{{ number }} super result{% plural %}{{ number }} super results{% endblocktrans %}')
|
||||
rendered = t.render(Context())
|
||||
self.assertEqual(rendered, '2 Super-Ergebnisse')
|
||||
t = Template('{% load i18n %}{% blocktrans context "other super search" count number=1 %}{{ number }} super result{% plural %}{{ number }} super results{% endblocktrans %}')
|
||||
rendered = t.render(Context())
|
||||
self.assertEqual(rendered, '1 anderen Super-Ergebnis')
|
||||
t = Template('{% load i18n %}{% blocktrans context "other super search" count number=2 %}{{ number }} super result{% plural %}{{ number }} super results{% endblocktrans %}')
|
||||
rendered = t.render(Context())
|
||||
self.assertEqual(rendered, '2 andere Super-Ergebnisse')
|
||||
|
||||
# Using 'with'
|
||||
t = Template('{% load i18n %}{% blocktrans with num_comments=5 context "comment count" %}There are {{ num_comments }} comments{% endblocktrans %}')
|
||||
rendered = t.render(Context())
|
||||
self.assertEqual(rendered, 'Es gibt 5 Kommentare')
|
||||
t = Template('{% load i18n %}{% blocktrans with num_comments=5 context "other comment count" %}There are {{ num_comments }} comments{% endblocktrans %}')
|
||||
rendered = t.render(Context())
|
||||
self.assertEqual(rendered, 'Andere: Es gibt 5 Kommentare')
|
||||
|
||||
# Mis-uses
|
||||
self.assertRaises(TemplateSyntaxError, Template, '{% load i18n %}{% blocktrans context with month="May" %}{{ month }}{% endblocktrans %}')
|
||||
self.assertRaises(TemplateSyntaxError, Template, '{% load i18n %}{% blocktrans context %}{% endblocktrans %}')
|
||||
self.assertRaises(TemplateSyntaxError, Template, '{% load i18n %}{% blocktrans count number=2 context %}{{ number }} super result{% plural %}{{ number }} super results{% endblocktrans %}')
|
||||
|
||||
|
||||
def test_string_concat(self):
|
||||
"""
|
||||
unicode(string_concat(...)) should not raise a TypeError - #4796
|
||||
|
|
|
|||
Loading…
Reference in New Issue