X-Git-Url: https://git.mdrn.pl/librarian.git/blobdiff_plain/f8e5f031c04122d65d1066077be3920ae95518ae..bd2ad2356d916f72762de867890b5d176830f73b:/librarian/parser.py?ds=sidebyside
diff --git a/librarian/parser.py b/librarian/parser.py
index 55b4e4b..6343d21 100644
--- a/librarian/parser.py
+++ b/librarian/parser.py
@@ -1,25 +1,32 @@
# -*- coding: utf-8 -*-
-from librarian import ValidationError, NoDublinCore, ParseError
-from librarian import RDFNS, DCNS
+#
+# This file is part of Librarian, licensed under GNU Affero GPLv3 or later.
+# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
+#
+from librarian import ValidationError, NoDublinCore, ParseError, NoProvider
+from librarian import RDFNS
from librarian import dcparser
from xml.parsers.expat import ExpatError
from lxml import etree
from lxml.etree import XMLSyntaxError, XSLTApplyError
+import os
import re
from StringIO import StringIO
class WLDocument(object):
- LINE_SWAP_EXPR = re.compile(r'/\s', re.MULTILINE | re.UNICODE);
+ LINE_SWAP_EXPR = re.compile(r'/\s', re.MULTILINE | re.UNICODE)
+ provider = None
- def __init__(self, edoc, parse_dublincore=True):
+ def __init__(self, edoc, parse_dublincore=True, provider=None, strict=False):
self.edoc = edoc
+ self.provider = provider
root_elem = edoc.getroot()
-
+
dc_path = './/' + RDFNS('RDF')
-
+
if root_elem.tag != 'utwor':
raise ValidationError("Invalid root element. Found '%s', should be 'utwor'" % root_elem.tag)
@@ -28,17 +35,18 @@ class WLDocument(object):
if self.rdf_elem is None:
raise NoDublinCore('Document has no DublinCore - which is required.')
-
- self.book_info = dcparser.BookInfo.from_element(self.rdf_elem)
+
+ self.book_info = dcparser.BookInfo.from_element(
+ self.rdf_elem, strict=strict)
else:
self.book_info = None
-
+
@classmethod
- def from_string(cls, xml, swap_endlines=False, parse_dublincore=True):
- return cls.from_file(StringIO(xml), swap_endlines, parse_dublincore=parse_dublincore)
+ def from_string(cls, xml, *args, **kwargs):
+ return cls.from_file(StringIO(xml), *args, **kwargs)
@classmethod
- def from_file(cls, xmlfile, swap_endlines=False, parse_dublincore=True):
+ def from_file(cls, xmlfile, parse_dublincore=True, provider=None):
# first, prepare for parsing
if isinstance(xmlfile, basestring):
@@ -53,27 +61,55 @@ class WLDocument(object):
if not isinstance(data, unicode):
data = data.decode('utf-8')
- if swap_endlines:
- data = cls.LINE_SWAP_EXPR.sub(u'
\n', data)
-
+ data = data.replace(u'\ufeff', '')
+
try:
- parser = etree.XMLParser(remove_blank_text=True)
- return cls(etree.parse(StringIO(data), parser), parse_dublincore=parse_dublincore)
- except (ExpatError, XMLSyntaxError, XSLTApplyError), e:
- raise ParseError(e)
+ parser = etree.XMLParser(remove_blank_text=False)
+ tree = etree.parse(StringIO(data.encode('utf-8')), parser)
- def part_as_text(self, path):
- # convert the path to XPath
- print "[L] Retrieving part:", path
+ return cls(tree, parse_dublincore=parse_dublincore, provider=provider)
+ except (ExpatError, XMLSyntaxError, XSLTApplyError), e:
+ raise ParseError(e)
+
+ def swap_endlines(self):
+ """Converts line breaks in stanzas into
tags."""
+ # only swap inside stanzas
+ for elem in self.edoc.iter('strofa'):
+ for child in list(elem):
+ if child.tail:
+ chunks = self.LINE_SWAP_EXPR.split(child.tail)
+ ins_index = elem.index(child) + 1
+ while len(chunks) > 1:
+ ins = etree.Element('br')
+ ins.tail = chunks.pop()
+ elem.insert(ins_index, ins)
+ child.tail = chunks.pop(0)
+ if elem.text:
+ chunks = self.LINE_SWAP_EXPR.split(elem.text)
+ while len(chunks) > 1:
+ ins = etree.Element('br')
+ ins.tail = chunks.pop()
+ elem.insert(0, ins)
+ elem.text = chunks.pop(0)
+
+ def parts(self):
+ if self.provider is None:
+ raise NoProvider('No document provider supplied.')
+ 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)
+
+ def chunk(self, path):
+ # convert the path to XPath
+ expr = self.path_to_xpath(path)
+ elems = self.edoc.xpath(expr)
- elems = self.edoc.xpath(self.path_to_xpath(path))
- print "[L] xpath", elems
-
if len(elems) == 0:
- return None
-
- return etree.tostring(elems[0], encoding=unicode, pretty_print=True)
-
+ return None
+ else:
+ return elems[0]
def path_to_xpath(self, path):
parts = []
@@ -84,7 +120,7 @@ class WLDocument(object):
parts.append(part)
else:
tag, n = match.groups()
- parts.append("node()[position() = %d and name() = '%s']" % (int(n), tag) )
+ parts.append("*[%d][name() = '%s']" % (int(n)+1, tag) )
if parts[0] == '.':
parts[0] = ''
@@ -95,8 +131,9 @@ class WLDocument(object):
return self.edoc.xslt(stylesheet, **options)
def update_dc(self):
- parent = self.rdf_elem.getparent()
- parent.replace( self.rdf_elem, self.book_info.to_etree(parent) )
+ if self.book_info:
+ parent = self.rdf_elem.getparent()
+ parent.replace( self.rdf_elem, self.book_info.to_etree(parent) )
def serialize(self):
self.update_dc()
@@ -108,10 +145,62 @@ class WLDocument(object):
for key, data in chunk_dict.iteritems():
try:
xpath = self.path_to_xpath(key)
- node = self.edoc.xpath(xpath)[0]
- repl = etree.fromstring(data)
+ node = self.edoc.xpath(xpath)[0]
+ repl = etree.fromstring(u"<%s>%s" %(node.tag, data, node.tag) )
node.getparent().replace(node, repl);
except Exception, e:
unmerged.append( repr( (key, xpath, e) ) )
- return unmerged
\ No newline at end of file
+ return unmerged
+
+ def clean_ed_note(self):
+ """ 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'))):
+ tail = node.tail
+ node.clear()
+ node.tag = 'span'
+ node.tail = tail
+
+ # Converters
+
+ def as_html(self, *args, **kwargs):
+ from librarian import html
+ return html.transform(self, *args, **kwargs)
+
+ def as_text(self, *args, **kwargs):
+ from librarian import text
+ return text.transform(self, *args, **kwargs)
+
+ def as_epub(self, *args, **kwargs):
+ from librarian import epub
+ return epub.transform(self, *args, **kwargs)
+
+ def as_pdf(self, *args, **kwargs):
+ from librarian import pdf
+ return pdf.transform(self, *args, **kwargs)
+
+ def as_mobi(self, *args, **kwargs):
+ from librarian import mobi
+ return mobi.transform(self, *args, **kwargs)
+
+ def as_fb2(self, *args, **kwargs):
+ 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):
+ 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)
+ if ext:
+ save_path += '.%s' % ext
+ else:
+ save_path = output_path
+
+ output_file.save_as(save_path)