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Mini Shell
Mini Shell
#!/usr/bin/env python3
__license__ = 'GPL v3'
__copyright__ = '2009, Kovid Goyal <kovid@kovidgoyal.net>'
__docformat__ = 'restructuredtext en'
import os, sys
from calibre.customize.conversion import InputFormatPlugin
class LRFInput(InputFormatPlugin):
name = 'LRF Input'
author = 'Kovid Goyal'
description = _('Convert LRF files to HTML')
file_types = {'lrf'}
commit_name = 'lrf_input'
def convert(self, stream, options, file_ext, log,
accelerators):
from calibre.ebooks.lrf.input import (MediaType, Styles, TextBlock,
Canvas, ImageBlock, RuledLine)
self.log = log
self.log('Generating XML')
from calibre.ebooks.lrf.lrfparser import LRFDocument
from calibre.utils.xml_parse import safe_xml_fromstring
from lxml import etree
d = LRFDocument(stream)
d.parse()
xml = d.to_xml(write_files=True)
if options.verbose > 2:
open('lrs.xml', 'wb').write(xml.encode('utf-8'))
doc = safe_xml_fromstring(xml)
char_button_map = {}
for x in doc.xpath('//CharButton[@refobj]'):
ro = x.get('refobj')
jump_button = doc.xpath('//*[@objid="%s"]'%ro)
if jump_button:
jump_to = jump_button[0].xpath('descendant::JumpTo[@refpage and @refobj]')
if jump_to:
char_button_map[ro] = '%s.xhtml#%s'%(jump_to[0].get('refpage'),
jump_to[0].get('refobj'))
plot_map = {}
for x in doc.xpath('//Plot[@refobj]'):
ro = x.get('refobj')
image = doc.xpath('//Image[@objid="%s" and @refstream]'%ro)
if image:
imgstr = doc.xpath('//ImageStream[@objid="%s" and @file]'%
image[0].get('refstream'))
if imgstr:
plot_map[ro] = imgstr[0].get('file')
self.log('Converting XML to HTML...')
styledoc = safe_xml_fromstring(P('templates/lrf.xsl', data=True))
media_type = MediaType()
styles = Styles()
text_block = TextBlock(styles, char_button_map, plot_map, log)
canvas = Canvas(doc, styles, text_block, log)
image_block = ImageBlock(canvas)
ruled_line = RuledLine()
extensions = {
('calibre', 'media-type') : media_type,
('calibre', 'text-block') : text_block,
('calibre', 'ruled-line') : ruled_line,
('calibre', 'styles') : styles,
('calibre', 'canvas') : canvas,
('calibre', 'image-block'): image_block,
}
transform = etree.XSLT(styledoc, extensions=extensions)
try:
result = transform(doc)
except RuntimeError:
sys.setrecursionlimit(5000)
result = transform(doc)
with open('content.opf', 'wb') as f:
f.write(result)
styles.write()
return os.path.abspath('content.opf')
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