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#!/usr/bin/env python
# -*- coding: utf8 -*-
# $Id: rst2pdf.py 5560 2008-05-20 13:00:31Z milde $
# rst2pdf.py
# ==========
# ::
"""
A front end to the Docutils Publisher, producing PDF.
Produces a latex file with the "latex" writer and converts
it to PDF with the "rubber" building system for LaTeX documents.
"""
# ``rst2pdf.py`` is a PDF front-end for docutils that is compatible
# with the ``rst2*.py`` front ends of the docutils_ suite.
# It enables the generation of PDF documents from a reStructuredText source in
# one step.
#
# It is implemented as a combination of docutils' ``rst2latex.py``
# by David Goodger and rubber_ by Emmanuel Beffara.
#
# Copyright: © 2008 Günter Milde
# Licensed under the `Apache License, Version 2.0`_
# Provided WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND
#
# Changelog
# ---------
#
# ===== ========== =======================================================
# 0.1 2008-05-20 first attempt
# ===== ========== =======================================================
#
# ::
_version = 0.1
# Imports
# =======
# ::
#from pprint import pprint # for debugging
import os
# Docutils::
try:
import locale
locale.setlocale(locale.LC_ALL, '')
except:
pass
from docutils.core import default_usage, default_description, Publisher
# Rubber (rubber is not installed in the PYTHONPATH)::
import sys
sys.path.append("/usr/share/rubber")
try:
import rubber.cmdline
import rubber.cmd_pipe
except ImportError:
print "Cannot find the rubber modules, rubber not installed correctly."
sys.exit(1)
# Generate the latex file
# =======================
#
# We need to replace the <destination> by a intermediate latex file path.
# The most reliable way to get the value of <destination> is to
# call the Publisher "by hand", and query its settings.
#
# Modeled on the publish_cmdline() function of docutils.core
#
# Default values::
reader=None
reader_name='standalone'
parser=None
parser_name='restructuredtext'
writer=None
writer_name='pseudoxml'
settings=None
settings_spec=None
settings_overrides=None
config_section=None
enable_exit_status=1
argv=None
usage=default_usage
description=default_description
# Argument values given to publish_cmdline() in rst2latex.py::
description = ('Generates PDF documents from standalone reStructuredText '
'sources using the "latex" Writer and the "rubber" '
'building system for LaTeX documents. ' + default_description)
writer_name = 'latex'
# Set up the publisher::
pub = Publisher(reader, parser, writer, settings=settings)
pub.set_components(reader_name, parser_name, writer_name)
# Parse the command line args
# (Publisher.publish does this in a try statement)::
pub.process_command_line(argv, usage, description, settings_spec,
config_section, **(settings_overrides or {}))
# pprint(pub.settings.__dict__)
# Get source and destination path::
source = pub.settings._source
destination = pub.settings._destination
# print source, destination
# Generate names for the temporary files and set ``destination`` to temporary
# latex file:
#
# make_name() from rubber.cmd_pipe checks that no existing file is
# overwritten. If we are going to support rubbers ``--inplace`` and ``--into``
# options, the chdir() must occure before this point to have the check in the
# right directory. ::
tmppath = rubber.cmd_pipe.make_name()
texpath = tmppath + ".tex"
pdfpath = tmppath + ".pdf"
pub.settings._destination = texpath
# Now do the rst -> latex conversion::
pub.publish(argv, usage, description, settings_spec, settings_overrides,
config_section=config_section, enable_exit_status=enable_exit_status)
# Generating the PDF document with rubber
# =======================================
#
#
# rubber_ has no documentet API for programmatic use. We simualate a command
# line call and pass command line arguments (see man: rubber-pipe) in an array::
rubber_argv = ["--pdf", # use pdflatex to produce PDF
"--short", # Display LaTeX’s error messages one error per line.
texpath
]
# Get a TeX processing class instance and do the latex->pdf conversion::
tex_processor = rubber.cmdline.Main()
tex_processor(rubber_argv)
# Rename output to _destination or print to stdout::
if destination is None:
pdffile = file(pdfpath)
print pdffile.read()
pdffile.close()
else:
os.rename(pdfpath, destination)
# Clean up (remove intermediate files)
#
# ::
tex_processor(["--clean"] + rubber_argv)
os.remove(texpath)
# .. References
#
# .. _docutils: http://docutils.sourceforge.net/
# .. _rubber: http://www.pps.jussieu.fr/~beffara/soft/rubber/
# .. _Apache License, Version 2.0: http://www.apache.org/licenses/LICENSE-2.0
#
|
