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#!/usr/bin/env python
r"""
Process docstrings with Sphinx
Processes docstrings with Sphinx. Can also be used as a commandline script:
``python sphinxify.py <text>``
AUTHORS:
- Tim Joseph Dumol (2009-09-29): initial version
"""
#**************************************************
# Copyright (C) 2009 Tim Dumol <tim@timdumol.com>
#
# Distributed under the terms of the BSD License
#**************************************************
import os
import re
import shutil
from tempfile import mkdtemp
# We import Sphinx on demand, to reduce Sage startup time.
Sphinx = None
from sage.env import SAGE_DOC_SRC
def is_sphinx_markup(docstring):
"""
Returns whether a string that contains Sphinx-style ReST markup.
INPUT:
- ``docstring`` - string to test for markup
OUTPUT:
- boolean
"""
# this could be made much more clever
return ("`" in docstring or "::" in docstring)
def sphinxify(docstring, format='html'):
r"""
Runs Sphinx on a ``docstring``, and outputs the processed
documentation.
INPUT:
- ``docstring`` -- string -- a ReST-formatted docstring
- ``format`` -- string (optional, default 'html') -- either 'html' or
'text'
OUTPUT:
- string -- Sphinx-processed documentation, in either HTML or
plain text format, depending on the value of ``format``
EXAMPLES::
sage: from sagenb.misc.sphinxify import sphinxify
sage: sphinxify('A test')
'...<div class="docstring">\n \n <p>A test</p>\n\n\n</div>'
sage: sphinxify('**Testing**\n`monospace`')
'...<div class="docstring"...<strong>Testing</strong>\n<span class="math"...</p>\n\n\n</div>'
sage: sphinxify('`x=y`')
'...<div class="docstring">\n \n <p><span class="math">x=y</span></p>\n\n\n</div>'
sage: sphinxify('`x=y`', format='text')
'x=y\n'
sage: sphinxify(':math:`x=y`', format='text')
'x=y\n'
TESTS::
sage: n = len(sys.path)
sage: _ = sphinxify('A test')
sage: assert n == len(sys.path)
"""
global Sphinx
if not Sphinx:
from sphinx.application import Sphinx
srcdir = mkdtemp()
base_name = os.path.join(srcdir, 'docstring')
rst_name = base_name + '.rst'
if format == 'html':
suffix = '.html'
else:
suffix = '.txt'
output_name = base_name + suffix
filed = open(rst_name, 'w')
filed.write(docstring)
filed.close()
# Sphinx constructor: Sphinx(srcdir, confdir, outdir, doctreedir,
# buildername, confoverrides, status, warning, freshenv).
temp_confdir = False
confdir = os.path.join(SAGE_DOC_SRC, 'en', 'introspect')
if not SAGE_DOC_SRC and not os.path.exists(confdir):
# If we don't have Sage, we need to do our own configuration
# This may be inefficient or broken. TODO: Find a faster way to do this.
temp_confdir = True
confdir = mkdtemp()
generate_configuration(confdir)
doctreedir = os.path.join(srcdir, 'doctrees')
confoverrides = {'html_context': {}, 'master_doc': 'docstring'}
import sys
old_sys_path = list(sys.path) # Sphinx modifies sys.path
sphinx_app = Sphinx(srcdir, confdir, srcdir, doctreedir, format,
confoverrides, None, None, True)
sphinx_app.build(None, [rst_name])
sys.path = old_sys_path
#We need to remove "_" from __builtin__ that the gettext module installs
import __builtin__
__builtin__.__dict__.pop('_', None)
if os.path.exists(output_name):
output = open(output_name, 'r').read()
output = output.replace('<pre>', '<pre class="literal-block">')
# Translate URLs for media from something like
# "../../media/...path.../blah.png"
# or
# "/media/...path.../blah.png"
# to
# "/doc/static/reference/media/...path.../blah.png"
output = re.sub("""src=['"](/?\.\.)*/?media/([^"']*)['"]""",
'src="/doc/static/reference/media/\\2"',
output)
# Remove spurious \(, \), \[, \].
output = output.replace('\\(', '').replace('\\)', '').replace('\\[', '').replace('\\]', '')
else:
print("BUG -- Sphinx error")
if format == 'html':
output = '<pre class="introspection">%s</pre>' % docstring
else:
output = docstring
if temp_confdir:
shutil.rmtree(confdir, ignore_errors=True)
shutil.rmtree(srcdir, ignore_errors=True)
return output
def generate_configuration(directory):
r"""
Generates a Sphinx configuration in ``directory``.
INPUT:
- ``directory`` - string, base directory to use
EXAMPLES::
sage: from sagenb.misc.sphinxify import generate_configuration
sage: import tempfile, os
sage: tmpdir = tempfile.mkdtemp()
sage: generate_configuration(tmpdir)
sage: open(os.path.join(tmpdir, 'conf.py')).read()
'\n...extensions =...'
"""
conf = r'''
###########################################################
# Taken from `$SAGE_ROOT$/devel/sage/doc/common/conf.py` #
###########################################################
import sys, os, re
# If your extensions are in another directory, add it here. If the directory
# is relative to the documentation root, use os.path.abspath to make it
# absolute, like shown here.
#sys.path.append(os.path.abspath('.'))
# General configuration
# ---------------------
# Add any Sphinx extension module names here, as strings. They can be extensions
# coming with Sphinx (named 'sphinx.ext.*') or your custom ones.
extensions = ['sage_autodoc', 'sphinx.ext.graphviz',
'sphinx.ext.inheritance_diagram', 'sphinx.ext.todo']
#, 'sphinx.ext.intersphinx', 'sphinx.ext.extlinks']
# The suffix of source filenames.
source_suffix = '.rst'
# The master toctree document.
master_doc = 'index'
# General information about the project.
project = u""
copyright = u'2005--2011, The Sage Development Team'
# The version info for the project you're documenting, acts as replacement for
# |version| and |release|, also used in various other places throughout the
# built documents.
#
# The short X.Y version.
#version = '3.1.2'
# The full version, including alpha/beta/rc tags.
#release = '3.1.2'
# The language for content autogenerated by Sphinx. Refer to documentation
# for a list of supported languages.
#language = None
# There are two options for replacing |today|: either, you set today to some
# non-false value, then it is used:
#today = ''
# Else, today_fmt is used as the format for a strftime call.
#today_fmt = '%B %d, %Y'
# List of documents that shouldn't be included in the build.
#unused_docs = []
# List of directories, relative to source directory, that shouldn't be searched
# for source files.
exclude_trees = ['.build']
# The reST default role (used for this markup: `text`) to use for all documents.
default_role = 'math'
# If true, '()' will be appended to :func: etc. cross-reference text.
#add_function_parentheses = True
# If true, the current module name will be prepended to all description
# unit titles (such as .. function::).
#add_module_names = True
# If true, sectionauthor and moduleauthor directives will be shown in the
# output. They are ignored by default.
#show_authors = False
# The name of the Pygments (syntax highlighting) style to use. NOTE:
# This overrides a HTML theme's corresponding setting (see below).
pygments_style = 'sphinx'
# GraphViz includes dot, neato, twopi, circo, fdp.
graphviz_dot = 'dot'
inheritance_graph_attrs = { 'rankdir' : 'BT' }
inheritance_node_attrs = { 'height' : 0.5, 'fontsize' : 12, 'shape' : 'oval' }
inheritance_edge_attrs = {}
# Extension configuration
# -----------------------
# include the todos
todo_include_todos = True
# Options for HTML output
# -----------------------
# HTML style sheet NOTE: This overrides a HTML theme's corresponding
# setting.
#html_style = 'classic.css'
# The name for this set of Sphinx documents. If None, it defaults to
# "<project> v<release> documentation".
#html_title = None
# A shorter title for the navigation bar. Default is the same as html_title.
#html_short_title = None
# The name of an image file (within the static path) to place at the top of
# the sidebar.
#html_logo = 'sagelogo-word.ico'
# The name of an image file (within the static path) to use as favicon of the
# docs. This file should be a Windows icon file (.ico) being 16x16 or 32x32
# pixels large.
html_favicon = 'favicon.ico'
# If we're using MathJax, we prepend its location to the static path
# array. We can override / overwrite selected files by putting them
# in the remaining paths. We also write the local config file,
# containing Sage-specific macros and allowing the use of dollar signs
# to delimit math. We write the file to the directory
# sagenb/data/mathjax/config/local/mathjax_sage.js,
# in the sagenb-... subdirectory of
# SAGE_ROOT/local/lib/python/site-libraries.
# This is in the static path, so the file gets copied to the
# appropriate place, allowing us to use the above setting for
# mathjax_path.
# The environment variable SAGE_DOC_MATHJAX may be set by the user or
# by the file "builder.py". If it's set, or if SAGE_DOC_JSMATH is set
# (for backwards compatibility), use MathJax.
if (os.environ.get('SAGE_DOC_MATHJAX', False)
or os.environ.get('SAGE_DOC_JSMATH', False)):
extensions.append('sphinx.ext.mathjax')
mathjax_path = 'MathJax.js?config=TeX-AMS_HTML-full,../mathjax_sage.js'
from sage.misc.latex_macros import sage_mathjax_macros
html_theme_options['mathjax_macros'] = sage_mathjax_macros()
from pkg_resources import Requirement, working_set
sagenb_path = working_set.find(Requirement.parse('sagenb')).location
mathjax_relative = os.path.join('sagenb','data','mathjax')
# It would be really nice if sphinx would copy the entire mathjax directory,
# (so we could have a _static/mathjax directory), rather than the contents of the directory
mathjax_static = os.path.join(sagenb_path, mathjax_relative)
html_static_path.append(mathjax_static)
exclude_patterns=['**/'+os.path.join(mathjax_relative, i) for i in ('docs', 'README*', 'test',
'unpacked', 'LICENSE')]
else:
extensions.append('sphinx.ext.pngmath')
# If not '', a 'Last updated on:' timestamp is inserted at every page bottom,
# using the given strftime format.
#html_last_updated_fmt = '%b %d, %Y'
# If true, SmartyPants will be used to convert quotes and dashes to
# typographically correct entities.
#html_use_smartypants = True
# Custom sidebar templates, maps document names to template names.
#html_sidebars = {}
# Additional templates that should be rendered to pages, maps page names to
# template names.
#html_additional_pages = {}
# If false, no module index is generated.
#html_use_modindex = True
# If false, no index is generated.
#html_use_index = True
# If true, the reST sources are included in the HTML build as _sources/<name>.
#html_copy_source = True
# If true, an OpenSearch description file will be output, and all pages will
# contain a <link> tag referring to it. The value of this option must be the
# base URL from which the finished HTML is served.
#html_use_opensearch = ''
# If nonempty, this is the file name suffix for HTML files (e.g. ".xhtml").
#html_file_suffix = ''
# Output file base name for HTML help builder.
#htmlhelp_basename = ''
# Options for LaTeX output
# ------------------------
# See http://sphinx.pocoo.org/config.html#confval-latex_elements
latex_elements = {}
# Extended UTF-8 scheme
latex_elements['inputenc'] = '\\usepackage[utf8x]{inputenc}'
# Prevent Sphinx from by default inserting the following LaTeX
# declaration into the preamble of a .tex file:
#
# \DeclareUnicodeCharacter{00A0}{\nobreakspace}
#
# This happens in the file src/sphinx/writers/latex.py in the sphinx
# spkg. This declaration is known to result in a failure to build the
# PDF version of a document in the Sage standard documentation. See
# ticket #8183 for further information on this issue.
latex_elements['utf8extra'] = ''
# The paper size ('letterpaper' or 'a4paper').
#latex_elements['papersize'] = 'letterpaper'
# The font size ('10pt', '11pt' or '12pt').
#latex_elements['pointsize'] = '10pt'
# Grouping the document tree into LaTeX files. List of tuples
# (source start file, target name, title, author, document class [howto/manual]).
latex_documents = []
# The name of an image file (relative to this directory) to place at the top of
# the title page.
#latex_logo = 'sagelogo-word.png'
# For "manual" documents, if this is true, then toplevel headings are parts,
# not chapters.
#latex_use_parts = False
# Additional stuff for the LaTeX preamble.
latex_elements['preamble'] = '\usepackage{amsmath}\n\usepackage{amssymb}\n'
# Documents to append as an appendix to all manuals.
#latex_appendices = []
# If false, no module index is generated.
#latex_use_modindex = True
#####################################################
# add LaTeX macros for Sage
try:
from sage.misc.latex_macros import sage_latex_macros
except ImportError:
def sage_latex_macros(): return []
try:
pngmath_latex_preamble # check whether this is already defined
except NameError:
pngmath_latex_preamble = ""
for macro in sage_latex_macros():
# used when building latex and pdf versions
latex_elements['preamble'] += macro + '\n'
# used when building html version
pngmath_latex_preamble += macro + '\n'
#####################################################
def process_docstring_aliases(app, what, name, obj, options, docstringlines):
"""
Change the docstrings for aliases to point to the original object.
"""
basename = name.rpartition('.')[2]
if hasattr(obj, '__name__') and obj.__name__ != basename:
docstringlines[:] = ['See :obj:`%s`.' % name]
def process_directives(app, what, name, obj, options, docstringlines):
"""
Remove 'nodetex' and other directives from the first line of any
docstring where they appear.
"""
if len(docstringlines) == 0:
return
first_line = docstringlines[0]
directives = [ d.lower() for d in first_line.split(',') ]
if 'nodetex' in directives:
docstringlines.pop(0)
def process_docstring_cython(app, what, name, obj, options, docstringlines):
"""
Remove Cython's filename and location embedding.
"""
if len(docstringlines) <= 1:
return
first_line = docstringlines[0]
if first_line.startswith('File:') and '(starting at' in first_line:
#Remove the first two lines
docstringlines.pop(0)
docstringlines.pop(0)
def process_docstring_module_title(app, what, name, obj, options, docstringlines):
"""
Removes the first line from the beginning of the module's docstring. This
corresponds to the title of the module's documentation page.
"""
if what != "module":
return
#Remove any additional blank lines at the beginning
title_removed = False
while len(docstringlines) > 1 and not title_removed:
if docstringlines[0].strip() != "":
title_removed = True
docstringlines.pop(0)
#Remove any additional blank lines at the beginning
while len(docstringlines) > 1:
if docstringlines[0].strip() == "":
docstringlines.pop(0)
else:
break
skip_picklability_check_modules = [
#'sage.misc.nested_class_test', # for test only
'sage.misc.latex',
'sage.misc.explain_pickle',
'__builtin__',
]
def check_nested_class_picklability(app, what, name, obj, skip, options):
"""
Print a warning if pickling is broken for nested classes.
"""
from six import iteritems
import types
if hasattr(obj, '__dict__') and hasattr(obj, '__module__'):
# Check picklability of nested classes. Adapted from
# sage.misc.nested_class.modify_for_nested_pickle.
module = sys.modules[obj.__module__]
for (nm, v) in iteritems(obj.__dict__):
if (isinstance(v, (type, types.ClassType)) and
v.__name__ == nm and
v.__module__ == module.__name__ and
getattr(module, nm, None) is not v and
v.__module__ not in skip_picklability_check_modules):
# OK, probably this is an *unpicklable* nested class.
app.warn('Pickling of nested class %r is probably broken. '
'Please set __metaclass__ of the parent class to '
'sage.misc.nested_class.NestedClassMetaclass.' % (
v.__module__ + '.' + name + '.' + nm))
def skip_member(app, what, name, obj, skip, options):
"""
To suppress Sphinx warnings / errors, we
- Don't include [aliases of] builtins.
- Don't include the docstring for any nested class which has been
inserted into its module by
:class:`sage.misc.NestedClassMetaclass` only for pickling. The
class will be properly documented inside its surrounding class.
- Don't include
sagenb.notebook.twist.userchild_download_worksheets.zip.
- Optionally, check whether pickling is broken for nested classes.
- Optionally, include objects whose name begins with an underscore
('_'), i.e., "private" or "hidden" attributes, methods, etc.
Otherwise, we abide by Sphinx's decision. Note: The object
``obj`` is excluded (included) if this handler returns True
(False).
"""
if 'SAGE_CHECK_NESTED' in os.environ:
check_nested_class_picklability(app, what, name, obj, skip, options)
if getattr(obj, '__module__', None) == '__builtin__':
return True
if (hasattr(obj, '__name__') and obj.__name__.find('.') != -1 and
obj.__name__.split('.')[-1] != name):
return True
if name.find("userchild_download_worksheets.zip") != -1:
return True
if 'SAGE_DOC_UNDERSCORE' in os.environ:
if name.split('.')[-1].startswith('_'):
return False
return skip
def process_dollars(app, what, name, obj, options, docstringlines):
r"""
Replace dollar signs with backticks.
See sage.misc.sagedoc.process_dollars for more information
"""
if len(docstringlines) > 0 and name.find("process_dollars") == -1:
from sage.misc.sagedoc import process_dollars as sagedoc_dollars
s = sagedoc_dollars("\n".join(docstringlines))
lines = s.split("\n")
for i in range(len(lines)):
docstringlines[i] = lines[i]
def process_inherited(app, what, name, obj, options, docstringlines):
"""
If we're including inherited members, omit their docstrings.
"""
if not options.get('inherited-members'):
return
if what in ['class', 'data', 'exception', 'function', 'module']:
return
name = name.split('.')[-1]
if what == 'method' and hasattr(obj, 'im_class'):
if name in obj.im_class.__dict__.keys():
return
if what == 'attribute' and hasattr(obj, '__objclass__'):
if name in obj.__objclass__.__dict__.keys():
return
for i in xrange(len(docstringlines)):
docstringlines.pop()
from sage.misc.sageinspect import sage_getargspec
autodoc_builtin_argspec = sage_getargspec
def setup(app):
app.connect('autodoc-process-docstring', process_docstring_cython)
app.connect('autodoc-process-docstring', process_directives)
app.connect('autodoc-process-docstring', process_docstring_module_title)
app.connect('autodoc-process-docstring', process_dollars)
app.connect('autodoc-process-docstring', process_inherited)
app.connect('autodoc-skip-member', skip_member)
'''
# From SAGE_DOC_SRC/en/introspect/templates/layout.html:
layout = r"""
<div class="docstring">
{% block body %}{% endblock %}
</div>
"""
os.makedirs(os.path.join(directory, 'templates'))
os.makedirs(os.path.join(directory, 'static'))
open(os.path.join(directory, 'conf.py'), 'w').write(conf)
open(os.path.join(directory, '__init__.py'), 'w').write('')
open(os.path.join(directory, 'templates', 'layout.html'),
'w').write(layout)
open(os.path.join(directory, 'static', 'empty'), 'w').write('')
if __name__ == '__main__':
import sys
if len(sys.argv) == 2:
print(sphinxify(sys.argv[1]))
else:
print("""Usage:
%s 'docstring'
docstring -- docstring to be processed
""")
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