Changes between Version 13 and Version 14 of WorkInProgress/PluggableDirectivesLibraries

Timestamp:

Jun 17, 2010, 11:46:59 PM (14 years ago)

Author:

Carsten Klein <carsten.klein@…>

Comment:

--

WorkInProgress/PluggableDirectivesLibraries

@@ -49 +49 @@
 {{{
 #!python
+try:
+    from setuptools import setup, Feature
+    from setuptools.command.bdist_egg import bdist_egg
+except ImportError:
+    from distutils.core import setup
+    Feature = None
+    bdist_egg = None
 
+setup(
+    name = 'GenshiSampleDirectivesLibrary',
+    version = '1.0.0proto_proto',
+    description = 'A sample genshi directives library',
+    long_description = \
+"""""",
+    author = 'axn-software.de, Carsten Klein',
+    author_email = 'info@axn-software.de',
+    license = 'BSD',
+    url = 'http://genshi.edgewall.org/wiki/WorkInProgress/PluggableDirectivesLibraries',
+    #download_url = 'http://genshi.edgewall.org/wiki/Download',
+
+    classifiers = [
+        'Development Status :: 2 - Prototype',
+        'Environment :: Web Environment',
+        'Intended Audience :: Developers',
+        'License :: OSI Approved :: BSD License',
+        'Operating System :: OS Independent',
+        'Programming Language :: Python',
+        'Topic :: Internet :: WWW/HTTP :: Dynamic Content',
+        'Topic :: Software Development :: Libraries :: Python Modules',
+        'Topic :: Text Processing :: Markup :: HTML',
+        'Topic :: Text Processing :: Markup :: XML'
+    ],
+    keywords = ['python.templating.engines'],
+    packages = ['sample'],
+    #test_suite = 'genshi.tests.suite',
+
+    entry_points = """
+    [genshi.libraries.directives]
+    genshi-sample = sample.directives_library:SampleDirectivesLibrary
+    """
+)
 }}}
 
@@ -58 +98 @@
 #!python
 
+from genshi.core import Markup, TEXT
+from genshi.template.base import TemplateSyntaxError, _apply_directives
+from genshi.template.default_directives_library import WhenDirective
+from genshi.template.directives import Directive, DirectivesLibrary
+
+
+NAMESPACE = "http://genshi.edgewall.org/directives/sample/"
+
+
+class SampleDirectivesLibrary(DirectivesLibrary):
+
+    def __init__(self):
+        DirectivesLibrary.__init__(self, 
+                                   [CommentDirective,
+                                    #ElementDirective
+                                    #CDATADirective
+                                   ],
+                                   default_namespace = NAMESPACE)
+
+
+# taken from ticket #321 comment directive patch
+class CommentDirective(Directive): 
+        """Implementation of the ``sample:comment`` template directive. 
+         
+        This directive replaces the content of the element with the result of 
+        evaluating the value of the ``sample:comment`` attribute: 
+         
+        >>> from genshi.template import MarkupTemplate 
+        >>> tmpl = MarkupTemplate('''<div xmlns:sample="http://genshi.edgewall.org/directives/sample"> 
+        ...   <sample:comment>${2 + 2}</sample:comment> 
+        ... </div>''') 
+        >>> print tmpl.generate(bar='Bye') 
+        <div> 
+          <!--4--> 
+        </div> 
+        """ 
+        __slots__ = [] 
+
+        @classmethod 
+        def attach(cls, template, stream, value, namespaces, pos): 
+            if type(value) is not dict: 
+                raise TemplateSyntaxError('The comment directive can only be used ' 
+                                          'as an element', template.filepath, 
+                                          *pos[1:]) 
+            return super(CommentDirective, cls).attach(template, stream, 
+                                                       value, namespaces, pos) 
+
+        def __call__(self, stream, directives, ctxt, **vars): 
+            stream = list(stream) 
+            
+            stream.insert(0, (TEXT, Markup("<!--"), (None, 1, 0))) 
+            stream.append((TEXT, Markup("-->"), (None, 1, 0))) 
+            
+            return _apply_directives(stream, directives, ctxt, vars)
+
+        @classmethod
+        def get_execute_before(cls):
+            return WhenDirective
 }}}