X-Git-Url: https://git.mdrn.pl/librarian.git/blobdiff_plain/2258dea3cedb63cc7b0f0bcacec6d863381d42ca..7f5ff5c99803e281dc90364cd6efb77b8d91fa26:/librarian/parser.py

diff --git a/librarian/parser.py b/librarian/parser.py
index 6343d21..502192f 100644
--- a/librarian/parser.py
+++ b/librarian/parser.py
@@ -5,6 +5,7 @@
 #
 from librarian import ValidationError, NoDublinCore,  ParseError, NoProvider
 from librarian import RDFNS
+from librarian.cover import DefaultEbookCover
 from librarian import dcparser
 
 from xml.parsers.expat import ExpatError
@@ -15,11 +16,13 @@ import os
 import re
 from StringIO import StringIO
 
+
 class WLDocument(object):
     LINE_SWAP_EXPR = re.compile(r'/\s', re.MULTILINE | re.UNICODE)
     provider = None
 
-    def __init__(self, edoc, parse_dublincore=True, provider=None, strict=False):
+    def __init__(self, edoc, parse_dublincore=True, provider=None, 
+                 strict=False, meta_fallbacks=None):
         self.edoc = edoc
         self.provider = provider
 
@@ -37,7 +40,7 @@ class WLDocument(object):
                 raise NoDublinCore('Document has no DublinCore - which is required.')
 
             self.book_info = dcparser.BookInfo.from_element(
-                    self.rdf_elem, strict=strict)
+                    self.rdf_elem, fallbacks=meta_fallbacks, strict=strict)
         else:
             self.book_info = None
 
@@ -46,7 +49,7 @@ class WLDocument(object):
         return cls.from_file(StringIO(xml), *args, **kwargs)
 
     @classmethod
-    def from_file(cls, xmlfile, parse_dublincore=True, provider=None):
+    def from_file(cls, xmlfile, *args, **kwargs):
 
         # first, prepare for parsing
         if isinstance(xmlfile, basestring):
@@ -67,7 +70,7 @@ class WLDocument(object):
             parser = etree.XMLParser(remove_blank_text=False)
             tree = etree.parse(StringIO(data.encode('utf-8')), parser)
 
-            return cls(tree, parse_dublincore=parse_dublincore, provider=provider)
+            return cls(tree, *args, **kwargs)
         except (ExpatError, XMLSyntaxError, XSLTApplyError), e:
             raise ParseError(e)
 
@@ -98,8 +101,7 @@ class WLDocument(object):
         if self.book_info is None:
             raise NoDublinCore('No Dublin Core in document.')
         for part_uri in self.book_info.parts:
-            yield self.from_file(self.provider.by_uri(part_uri),
-                    provider=self.provider)
+            yield self.from_file(self.provider.by_uri(part_uri), provider=self.provider)
 
     def chunk(self, path):
         # convert the path to XPath
@@ -120,7 +122,7 @@ class WLDocument(object):
                 parts.append(part)
             else:
                 tag, n = match.groups()
-                parts.append("*[%d][name() = '%s']" % (int(n)+1, tag) )
+                parts.append("*[%d][name() = '%s']" % (int(n)+1, tag))
 
         if parts[0] == '.':
             parts[0] = ''
@@ -133,7 +135,7 @@ class WLDocument(object):
     def update_dc(self):
         if self.book_info:
             parent = self.rdf_elem.getparent()
-            parent.replace( self.rdf_elem, self.book_info.to_etree(parent) )
+            parent.replace(self.rdf_elem, self.book_info.to_etree(parent))
 
     def serialize(self):
         self.update_dc()
@@ -146,23 +148,37 @@ class WLDocument(object):
             try:
                 xpath = self.path_to_xpath(key)
                 node = self.edoc.xpath(xpath)[0]
-                repl = etree.fromstring(u"<%s>%s</%s>" %(node.tag, data, node.tag) )
-                node.getparent().replace(node, repl);
+                repl = etree.fromstring(u"<%s>%s</%s>" % (node.tag, data, node.tag))
+                node.getparent().replace(node, repl)
             except Exception, e:
-                unmerged.append( repr( (key, xpath, e) ) )
+                unmerged.append(repr((key, xpath, e)))
 
         return unmerged
 
-    def clean_ed_note(self):
+    def clean_ed_note(self, note_tag='nota_red'):
         """ deletes forbidden tags from nota_red """
 
-        for node in self.edoc.xpath('|'.join('//nota_red//%s' % tag for tag in
-                    ('pa', 'pe', 'pr', 'pt', 'begin', 'end', 'motyw'))):
+        for node in self.edoc.xpath('|'.join('//%s//%s' % (note_tag, tag) for tag in
+                                    ('pa', 'pe', 'pr', 'pt', 'begin', 'end', 'motyw'))):
             tail = node.tail
             node.clear()
             node.tag = 'span'
             node.tail = tail
 
+    def editors(self):
+        """Returns a set of all editors for book and its children.
+
+        :returns: set of dcparser.Person objects
+        """
+        if self.book_info is None:
+            raise NoDublinCore('No Dublin Core in document.')
+        persons = set(self.book_info.editors + self.book_info.technical_editors)
+        for child in self.parts():
+            persons.update(child.editors())
+        if None in persons:
+            persons.remove(None)
+        return persons
+
     # Converters
 
     def as_html(self, *args, **kwargs):
@@ -189,15 +205,17 @@ class WLDocument(object):
         from librarian import fb2
         return fb2.transform(self, *args, **kwargs)
 
-    def save_output_file(self, output_file, output_path=None,
-            output_dir_path=None, make_author_dir=False, ext=None):
+    def as_cover(self, cover_class=None, *args, **kwargs):
+        if cover_class is None:
+            cover_class = DefaultEbookCover
+        return cover_class(self.book_info, *args, **kwargs).output_file()
+
+    def save_output_file(self, output_file, output_path=None, output_dir_path=None, make_author_dir=False, ext=None):
         if output_dir_path:
             save_path = output_dir_path
             if make_author_dir:
-                save_path = os.path.join(save_path,
-                        unicode(self.book_info.author).encode('utf-8'))
-            save_path = os.path.join(save_path,
-                                self.book_info.uri.slug)
+                save_path = os.path.join(save_path, unicode(self.book_info.author).encode('utf-8'))
+            save_path = os.path.join(save_path, self.book_info.uri.slug)
             if ext:
                 save_path += '.%s' % ext
         else: