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Fixed #648 -- Added comment syntax to template system: {# #}. Thanks for the patch, mccutchen@gmail.com and Hawkeye
git-svn-id: http://code.djangoproject.com/svn/django/trunk@3931 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Adrian Holovaty
parent
fa49edc7bd
commit
60b46d72ac
2
AUTHORS
2
AUTHORS
@ -83,6 +83,7 @@ answer newbie questions, and generally made Django that much better:
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Simon Greenhill <dev@simon.net.nz>
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Espen Grindhaug <http://grindhaug.org/>
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Brant Harris
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Hawkeye
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heckj@mac.com
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Joel Heenan <joelh-django@planetjoel.com>
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hipertracker@gmail.com
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@ -116,6 +117,7 @@ answer newbie questions, and generally made Django that much better:
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mark@junklight.com
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mattycakes@gmail.com
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Jason McBrayer <http://www.carcosa.net/jason/>
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mccutchen@gmail.com
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michael.mcewan@gmail.com
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mmarshall
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Eric Moritz <http://eric.themoritzfamily.com/>
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@ -19,7 +19,7 @@
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<div class="form-row">
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<label for="id_password">{% trans 'Password:' %}</label> <input type="password" name="password" id="id_password" />
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<input type="hidden" name="this_is_the_login_form" value="1" />
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<input type="hidden" name="post_data" value="{{ post_data }}" /> {% comment %}<span class="help">{% trans 'Have you <a href="/password_reset/">forgotten your password</a>?' %}</span>{% endcomment %}
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<input type="hidden" name="post_data" value="{{ post_data }}" /> {#<span class="help">{% trans 'Have you <a href="/password_reset/">forgotten your password</a>?' %}</span>#}
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</div>
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<div class="submit-row">
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<label> </label><input type="submit" value="{% trans 'Log in' %}" />
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@ -66,6 +66,7 @@ __all__ = ('Template', 'Context', 'RequestContext', 'compile_string')
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TOKEN_TEXT = 0
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TOKEN_VAR = 1
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TOKEN_BLOCK = 2
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TOKEN_COMMENT = 3
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# template syntax constants
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FILTER_SEPARATOR = '|'
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@ -75,6 +76,8 @@ BLOCK_TAG_START = '{%'
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BLOCK_TAG_END = '%}'
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VARIABLE_TAG_START = '{{'
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VARIABLE_TAG_END = '}}'
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COMMENT_TAG_START = '{#'
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COMMENT_TAG_END = '#}'
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SINGLE_BRACE_START = '{'
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SINGLE_BRACE_END = '}'
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@ -85,8 +88,9 @@ ALLOWED_VARIABLE_CHARS = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01
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UNKNOWN_SOURCE="<unknown source>"
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# match a variable or block tag and capture the entire tag, including start/end delimiters
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tag_re = re.compile('(%s.*?%s|%s.*?%s)' % (re.escape(BLOCK_TAG_START), re.escape(BLOCK_TAG_END),
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re.escape(VARIABLE_TAG_START), re.escape(VARIABLE_TAG_END)))
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tag_re = re.compile('(%s.*?%s|%s.*?%s|%s.*?%s)' % (re.escape(BLOCK_TAG_START), re.escape(BLOCK_TAG_END),
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re.escape(VARIABLE_TAG_START), re.escape(VARIABLE_TAG_END),
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re.escape(COMMENT_TAG_START), re.escape(COMMENT_TAG_END)))
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# global dictionary of libraries that have been loaded using get_library
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libraries = {}
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@ -163,12 +167,12 @@ def compile_string(template_string, origin):
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class Token(object):
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def __init__(self, token_type, contents):
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"The token_type must be TOKEN_TEXT, TOKEN_VAR or TOKEN_BLOCK"
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"The token_type must be TOKEN_TEXT, TOKEN_VAR, TOKEN_BLOCK or TOKEN_COMMENT"
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self.token_type, self.contents = token_type, contents
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def __str__(self):
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return '<%s token: "%s...">' % \
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({TOKEN_TEXT: 'Text', TOKEN_VAR: 'Var', TOKEN_BLOCK: 'Block'}[self.token_type],
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({TOKEN_TEXT: 'Text', TOKEN_VAR: 'Var', TOKEN_BLOCK: 'Block', TOKEN_COMMENT: 'Comment'}[self.token_type],
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self.contents[:20].replace('\n', ''))
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def split_contents(self):
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@ -191,6 +195,8 @@ class Lexer(object):
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token = Token(TOKEN_VAR, token_string[len(VARIABLE_TAG_START):-len(VARIABLE_TAG_END)].strip())
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elif token_string.startswith(BLOCK_TAG_START):
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token = Token(TOKEN_BLOCK, token_string[len(BLOCK_TAG_START):-len(BLOCK_TAG_END)].strip())
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elif token_string.startswith(COMMENT_TAG_START):
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token = Token(TOKEN_COMMENT, '')
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else:
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token = Token(TOKEN_TEXT, token_string)
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return token
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@ -109,6 +109,21 @@ Some tags require beginning and ending tags (i.e.
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below describes all the built-in tags. You can create your own tags, if you
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know how to write Python code.
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Comments
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========
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**New in Django development version**
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To comment-out part of a template, use the comment syntax: ``{# #}``.
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For example, this template would render as ``'hello'``::
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{# greeting #}hello
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A comment can contain any template code, invalid or not. For example::
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{# {% if foo %}bar{% else %} #}
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Template inheritance
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====================
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@ -173,6 +173,22 @@ class Templates(unittest.TestCase):
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# Empty strings can be passed as arguments to filters
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'basic-syntax36': (r'{{ var|join:"" }}', {'var': ['a', 'b', 'c']}, 'abc'),
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### COMMENT SYNTAX ########################################################
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'comment-syntax01': ("{# this is hidden #}hello", {}, "hello"),
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'comment-syntax02': ("{# this is hidden #}hello{# foo #}", {}, "hello"),
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# Comments can contain invalid stuff.
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'comment-syntax03': ("foo{# {% if %} #}", {}, "foo"),
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'comment-syntax04': ("foo{# {% endblock %} #}", {}, "foo"),
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'comment-syntax05': ("foo{# {% somerandomtag %} #}", {}, "foo"),
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'comment-syntax06': ("foo{# {% #}", {}, "foo"),
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'comment-syntax07': ("foo{# %} #}", {}, "foo"),
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'comment-syntax08': ("foo{# %} #}bar", {}, "foobar"),
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'comment-syntax09': ("foo{# {{ #}", {}, "foo"),
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'comment-syntax10': ("foo{# }} #}", {}, "foo"),
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'comment-syntax11': ("foo{# { #}", {}, "foo"),
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'comment-syntax12': ("foo{# } #}", {}, "foo"),
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### COMMENT TAG ###########################################################
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'comment-tag01': ("{% comment %}this is hidden{% endcomment %}hello", {}, "hello"),
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'comment-tag02': ("{% comment %}this is hidden{% endcomment %}hello{% comment %}foo{% endcomment %}", {}, "hello"),
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@ -473,7 +489,7 @@ class Templates(unittest.TestCase):
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'i18n13': ('{{ _("Page not found") }}', {'LANGUAGE_CODE': 'de'}, 'Seite nicht gefunden'),
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### HANDLING OF TEMPLATE_TAG_IF_INVALID ###################################
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'invalidstr01': ('{{ var|default:"Foo" }}', {}, ('Foo','INVALID')),
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'invalidstr02': ('{{ var|default_if_none:"Foo" }}', {}, ('','INVALID')),
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'invalidstr03': ('{% for v in var %}({{ v }}){% endfor %}', {}, ''),
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@ -606,20 +622,20 @@ class Templates(unittest.TestCase):
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# Turn TEMPLATE_DEBUG off, because tests assume that.
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old_td, settings.TEMPLATE_DEBUG = settings.TEMPLATE_DEBUG, False
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# Set TEMPLATE_STRING_IF_INVALID to a known string
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# Set TEMPLATE_STRING_IF_INVALID to a known string
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old_invalid = settings.TEMPLATE_STRING_IF_INVALID
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for name, vals in tests:
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install()
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if isinstance(vals[2], tuple):
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normal_string_result = vals[2][0]
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invalid_string_result = vals[2][1]
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else:
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normal_string_result = vals[2]
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invalid_string_result = vals[2]
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if 'LANGUAGE_CODE' in vals[1]:
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activate(vals[1]['LANGUAGE_CODE'])
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else:
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@ -636,10 +652,10 @@ class Templates(unittest.TestCase):
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continue
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if output != result:
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failures.append("Template test (TEMPLATE_STRING_IF_INVALID='%s'): %s -- FAILED. Expected %r, got %r" % (invalid_str, name, result, output))
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if 'LANGUAGE_CODE' in vals[1]:
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deactivate()
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loader.template_source_loaders = old_template_loaders
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deactivate()
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settings.TEMPLATE_DEBUG = old_td
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