1 # -*- coding: utf-8 -*-
3 Jinja Documentation Extensions
4 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
6 Support for automatically documenting filters and tests.
8 :copyright: Copyright 2008 by Armin Ronacher.
15 from itertools import islice
16 from types import BuiltinFunctionType
17 from docutils import nodes
18 from docutils.statemachine import ViewList
19 from sphinx.ext.autodoc import prepare_docstring
20 from sphinx.application import TemplateBridge
21 from pygments.style import Style
22 from pygments.token import Keyword, Name, Comment, String, Error, \
23 Number, Operator, Generic
24 from jinja2 import Environment, FileSystemLoader
27 def parse_rst(state, content_offset, doc):
28 node = nodes.section()
29 # hack around title style bookkeeping
30 surrounding_title_styles = state.memo.title_styles
31 surrounding_section_level = state.memo.section_level
32 state.memo.title_styles = []
33 state.memo.section_level = 0
34 state.nested_parse(doc, content_offset, node, match_titles=1)
35 state.memo.title_styles = surrounding_title_styles
36 state.memo.section_level = surrounding_section_level
40 class JinjaStyle(Style):
44 Comment: 'italic #aaaaaa',
45 Comment.Preproc: 'noitalic #B11414',
46 Comment.Special: 'italic #505050',
48 Keyword: 'bold #B80000',
49 Keyword.Type: '#808080',
51 Operator.Word: 'bold #B80000',
53 Name.Builtin: '#333333',
54 Name.Function: '#333333',
55 Name.Class: 'bold #333333',
56 Name.Namespace: 'bold #333333',
57 Name.Entity: 'bold #363636',
58 Name.Attribute: '#686868',
59 Name.Tag: 'bold #686868',
60 Name.Decorator: '#686868',
65 Generic.Heading: 'bold #000080',
66 Generic.Subheading: 'bold #800080',
67 Generic.Deleted: '#aa0000',
68 Generic.Inserted: '#00aa00',
69 Generic.Error: '#aa0000',
70 Generic.Emph: 'italic',
71 Generic.Strong: 'bold',
72 Generic.Prompt: '#555555',
73 Generic.Output: '#888888',
74 Generic.Traceback: '#aa0000',
80 class Jinja2Bridge(TemplateBridge):
82 def init(self, builder):
83 path = builder.config.templates_path
84 self.env = Environment(loader=FileSystemLoader(path))
86 def render(self, template, context):
87 return self.env.get_template(template).render(context)
90 _sig_re = re.compile(r'^[a-zA-Z_][a-zA-Z0-9_]*(\(.*?\))')
93 def format_function(name, aliases, func):
94 lines = inspect.getdoc(func).splitlines()
96 if isinstance(func, BuiltinFunctionType):
97 match = _sig_re.match(lines[0])
99 del lines[:1 + bool(lines and not lines[0])]
100 signature = match.group(1)
103 argspec = inspect.getargspec(func)
104 if getattr(func, 'environmentfilter', False) or \
105 getattr(func, 'contextfilter', False):
107 signature = inspect.formatargspec(*argspec)
110 result = ['.. function:: %s%s' % (name, signature), '']
111 result.extend(' ' + line for line in lines)
113 result.extend(('', ' :aliases: %s' % ', '.join(
114 '``%s``' % x for x in sorted(aliases))))
118 def dump_functions(mapping):
119 def directive(dirname, arguments, options, content, lineno,
120 content_offset, block_text, state, state_machine):
122 for name, func in mapping.iteritems():
123 reverse_mapping.setdefault(func, []).append(name)
125 for func, names in reverse_mapping.iteritems():
126 aliases = sorted(names, key=lambda x: len(x))
128 filters.append((name, aliases, func))
132 for name, aliases, func in filters:
133 for item in format_function(name, aliases, func):
134 result.append(item, '<jinjaext>')
136 node = nodes.paragraph()
137 state.nested_parse(result, content_offset, node)
142 from jinja2.defaults import DEFAULT_FILTERS, DEFAULT_TESTS
143 jinja_filters = dump_functions(DEFAULT_FILTERS)
144 jinja_tests = dump_functions(DEFAULT_TESTS)
147 def jinja_nodes(dirname, arguments, options, content, lineno,
148 content_offset, block_text, state, state_machine):
149 from jinja2.nodes import Node
151 def walk(node, indent):
153 sig = ', '.join(node.fields)
154 doc.append(p + '.. autoclass:: %s(%s)' % (node.__name__, sig), '')
157 for key, name in node.__dict__.iteritems():
158 if not key.startswith('_') and \
159 not hasattr(node.__base__, key) and callable(name):
163 doc.append('%s :members: %s' % (p, ', '.join(members)), '')
164 if node.__base__ != object:
166 doc.append('%s :Node type: :class:`%s`' %
167 (p, node.__base__.__name__), '')
169 children = node.__subclasses__()
170 children.sort(key=lambda x: x.__name__.lower())
171 for child in children:
174 return parse_rst(state, content_offset, doc)
177 def inject_toc(app, doctree, docname):
178 titleiter = iter(doctree.traverse(nodes.title))
180 # skip first title, we are not interested in that one
182 title = titleiter.next()
183 # and check if there is at least another title
185 except StopIteration:
187 tocnode = nodes.section('')
188 tocnode['classes'].append('toc')
189 toctitle = nodes.section('')
190 toctitle['classes'].append('toctitle')
191 toctitle.append(nodes.title(text='Table Of Contents'))
192 tocnode.append(toctitle)
193 tocnode += doctree.document.settings.env.get_toc_for(docname)[0][1]
194 title.parent.insert(title.parent.children.index(title), tocnode)
198 app.add_directive('jinjafilters', jinja_filters, 0, (0, 0, 0))
199 app.add_directive('jinjatests', jinja_tests, 0, (0, 0, 0))
200 app.add_directive('jinjanodes', jinja_nodes, 0, (0, 0, 0))
201 # uncomment for inline toc. links are broken unfortunately
202 ##app.connect('doctree-resolved', inject_toc)