/usr/lib/python2.7/dist-packages/citeproc/frontend.py is in python-citeproc 0.3.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 | from __future__ import (absolute_import, division, print_function,
unicode_literals)
from citeproc.py2compat import *
import os
from warnings import warn
from lxml import etree
from . import SCHEMA_PATH, LOCALES_PATH, STYLES_PATH
from .model import CitationStylesElement
from .formatter import html
class CitationStylesXML(object):
def __init__(self, f, validate=True):
lookup = etree.ElementNamespaceClassLookup()
namespace = lookup.get_namespace('http://purl.org/net/xbiblio/csl')
namespace[None] = CitationStylesElement
namespace.update(dict([(cls.__name__.replace('_', '-').lower(), cls)
for cls in CitationStylesElement.__subclasses__()]))
self.parser = etree.XMLParser(remove_comments=True, encoding='UTF-8',
no_network=True)
self.parser.set_element_class_lookup(lookup)
self.xml = etree.parse(f, self.parser)#, base_url=".")
if validate:
self.schema = etree.RelaxNG(etree.parse(SCHEMA_PATH))
if not self.schema.validate(self.xml):
err = self.schema.error_log
#raise Exception("XML file didn't pass schema validation:\n%s" % err)
warn("XML file didn't pass schema validation:\n%s" % err)
# TODO: proper error reporting
self.root = self.xml.getroot()
class CitationStylesLocale(CitationStylesXML):
def __init__(self, locale, validate=True):
locale_path = os.path.join(LOCALES_PATH, 'locales-{}.xml'.format(locale))
try:
super(CitationStylesLocale, self).__init__(locale_path,
validate=validate)
except IOError:
raise ValueError("'{}' is not a known locale".format(locale))
class CitationStylesStyle(CitationStylesXML):
def __init__(self, style, locale=None, validate=True):
try:
if not os.path.exists(style):
style = os.path.join(STYLES_PATH, '{}.csl'.format(style))
except TypeError:
pass
try:
super(CitationStylesStyle, self).__init__(
style, validate=validate)
except IOError:
raise ValueError("'{}' is not a known style".format(style))
if locale is None:
locale = self.root.get('default-locale', 'en-US')
self.root.set_locale_list(locale, validate=validate)
def has_bibliography(self):
return self.root.bibliography is not None
def render_citation(self, citation, cites, callback=None):
return self.root.citation.render(citation, cites, callback)
def sort_bibliography(self, citation_items):
return self.root.bibliography.sort(citation_items)
def render_bibliography(self, citation_items):
return self.root.bibliography.render(citation_items)
class CitationStylesBibliography(object):
def __init__(self, style, source, formatter=html):
self.style = style
self.source = source
self.formatter = self.style.root.formatter = formatter
self.keys = []
self.items = []
self._cites = []
def register(self, citation, callback=None):
citation.bibliography = self
for item in citation.cites:
if item.key in self.source:
if item.key not in self.keys:
self.keys.append(item.key)
self.items.append(item)
elif callback is not None:
callback(item)
def sort(self):
self.items = self.style.sort_bibliography(self.items)
self.keys = [item.key for item in self.items]
def cite(self, citation, callback):
return self.style.render_citation(citation, self._cites, callback)
def bibliography(self):
return self.style.render_bibliography(self.items)
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