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Slightly improve handling of OEB metadata.

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This commit is contained in:
Marshall T. Vandegrift 2009-01-22 22:30:00 -05:00
parent d633507c8c
commit 5060e619ba
1 changed files with 16 additions and 5 deletions
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21
src/calibre/ebooks/oeb/base.py
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@ -21,6 +21,7 @@ from lxml import etree
from lxml import html
from calibre import LoggingInterface
from calibre.translations.dynamic import translate
from calibre.startup import get_lang
XML_PARSER = etree.XMLParser(recover=True)
XML_NS = 'http://www.w3.org/XML/1998/namespace'
@ -30,6 +31,7 @@ OPF2_NS = 'http://www.idpf.org/2007/opf'
DC09_NS = 'http://purl.org/metadata/dublin_core'
DC10_NS = 'http://purl.org/dc/elements/1.0/'
DC11_NS = 'http://purl.org/dc/elements/1.1/'
DC_NSES = set([DC09_NS, DC10_NS, DC11_NS])
XSI_NS = 'http://www.w3.org/2001/XMLSchema-instance'
DCTERMS_NS = 'http://purl.org/dc/terms/'
NCX_NS = 'http://www.daisy.org/z3986/2005/ncx/'
@ -194,8 +196,12 @@ class Metadata(object):
if term == OPF('meta') and not value:
term = self.fq_attrib.pop('name')
value = self.fq_attrib.pop('content')
elif term in Metadata.TERMS and not namespace(term):
term = DC(term)
elif barename(term).lower() in Metadata.TERMS and \
(not namespace(term) or namespace(term) in DC_NSES):
# Anything looking like Dublin Core is coerced
term = DC(barename(term).lower())
elif namespace(term) == OPF2_NS:
term = barename(term)
self.term = term
self.value = value
self.attrib = attrib = {}
@ -814,7 +820,7 @@ class OEBBook(object):
break
if not metadata.language:
self.logger.warn(u'Language not specified.')
metadata.add('language', 'en')
metadata.add('language', get_lang())
if not metadata.creator:
self.logger.warn(u'Creator not specified.')
metadata.add('creator', _('Unknown'))
@ -857,6 +863,8 @@ class OEBBook(object):
extras.sort()
for item in extras:
spine.add(item, False)
if len(spine) == 0:
raise OEBError("Spine is empty")
def _guide_from_opf(self, opf):
self.guide = guide = Guide(self)
@ -886,8 +894,11 @@ class OEBBook(object):
if len(result) != 1:
return False
id = result[0]
ncx = self.manifest[id].data
self.manifest.remove(id)
if id not in self.manifest.ids:
return False
item = self.manifest.ids[id]
ncx = item.data
self.manifest.remove(item)
title = xpath(ncx, 'ncx:docTitle/ncx:text/text()')[0]
self.toc = toc = TOC(title)
navmaps = xpath(ncx, 'ncx:navMap')