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#!/usr/bin/env python
# Copyright (C) 2010 Stefan Merten
# rstdiff.py is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published
# by the Free Software Foundation; either version 2 of the License,
# or (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
# 02111-1307, USA.
"""
Translates a reStructuredText document to a plain text outline. This
can then be transformed_ to PowerPoint.
.. _transformed: http://www.pptfaq.com/FAQ00246.htm
"""
try:
import locale
locale.setlocale(locale.LC_ALL, '')
except:
pass
from docutils import frontend, writers, nodes
from docutils.core import publish_cmdline, default_description
description = ('Generates a plain text outline from a standalone '
'reStructuredText source. ' + default_description)
class Writer(writers.Writer):
supported = ('outline',)
"""Formats this writer supports."""
settings_spec = (
'Outline Writer Options',
None,
( )
)
settings_defaults = { }
config_section = 'outline writer'
config_section_dependencies = ( 'writers', )
output = None
"""Final translated form of `document`."""
def translate(self):
settings = self.document.settings
visitor = OutlineTranslator(self.document)
self.document.walkabout(visitor)
self.output = visitor.doc
class OutlineTranslator(nodes.SparseNodeVisitor):
doc = ""
"""The resulting document."""
inTitle = False
inBullet = 0
inItem = [ False, ]
inPara = [ ]
def __init__(self, document):
nodes.SparseNodeVisitor.__init__(self, document)
def visit_title(self, node):
self.addBol(0)
self.inTitle = True
def depart_title(self, node):
self.addEol()
self.inTitle = False
def visit_bullet_list(self, node):
self.inBullet += 1
def depart_bullet_list(self, node):
self.inBullet -= 1
# TODO Other list types need to be included as well
def visit_list_item(self, node):
self.inItem = True
def depart_list_item(self, node):
self.inItem = False
def visit_paragraph(self, node):
if self.inItem:
self.inPara = True
self.inItem = False
self.addBol(self.inBullet)
def depart_paragraph(self, node):
if self.inPara:
self.addEol()
self.inPara = False
def visit_Text(self, node):
if self.inTitle or self.inPara:
self.addText(node.astext())
def addBol(self, level):
self.doc += "\t" * level
def addText(self, text):
self.doc += text.replace("\n", " ")
def addEol(self):
self.doc += "\r\n"
# TODO References to images should be included somehow
publish_cmdline(writer=Writer(), description=description)
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