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Diffstat (limited to 'third_party/markdown/serializers.py')
| -rw-r--r-- | third_party/markdown/serializers.py | 277 |
1 files changed, 0 insertions, 277 deletions
diff --git a/third_party/markdown/serializers.py b/third_party/markdown/serializers.py deleted file mode 100644 index b19d61c..0000000 --- a/third_party/markdown/serializers.py +++ /dev/null @@ -1,277 +0,0 @@ -# markdown/searializers.py -# -# Add x/html serialization to Elementree -# Taken from ElementTree 1.3 preview with slight modifications -# -# Copyright (c) 1999-2007 by Fredrik Lundh. All rights reserved. -# -# fredrik@pythonware.com -# http://www.pythonware.com -# -# -------------------------------------------------------------------- -# The ElementTree toolkit is -# -# Copyright (c) 1999-2007 by Fredrik Lundh -# -# By obtaining, using, and/or copying this software and/or its -# associated documentation, you agree that you have read, understood, -# and will comply with the following terms and conditions: -# -# Permission to use, copy, modify, and distribute this software and -# its associated documentation for any purpose and without fee is -# hereby granted, provided that the above copyright notice appears in -# all copies, and that both that copyright notice and this permission -# notice appear in supporting documentation, and that the name of -# Secret Labs AB or the author not be used in advertising or publicity -# pertaining to distribution of the software without specific, written -# prior permission. -# -# SECRET LABS AB AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD -# TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANT- -# ABILITY AND FITNESS. IN NO EVENT SHALL SECRET LABS AB OR THE AUTHOR -# BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY -# DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -# WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS -# ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -# OF THIS SOFTWARE. -# -------------------------------------------------------------------- - - -from __future__ import absolute_import -from __future__ import unicode_literals -from . import util -ElementTree = util.etree.ElementTree -QName = util.etree.QName -if hasattr(util.etree, 'test_comment'): - Comment = util.etree.test_comment -else: - Comment = util.etree.Comment -PI = util.etree.PI -ProcessingInstruction = util.etree.ProcessingInstruction - -__all__ = ['to_html_string', 'to_xhtml_string'] - -HTML_EMPTY = ("area", "base", "basefont", "br", "col", "frame", "hr", - "img", "input", "isindex", "link", "meta" "param") - -try: - HTML_EMPTY = set(HTML_EMPTY) -except NameError: - pass - -_namespace_map = { - # "well-known" namespace prefixes - "http://www.w3.org/XML/1998/namespace": "xml", - "http://www.w3.org/1999/xhtml": "html", - "http://www.w3.org/1999/02/22-rdf-syntax-ns#": "rdf", - "http://schemas.xmlsoap.org/wsdl/": "wsdl", - # xml schema - "http://www.w3.org/2001/XMLSchema": "xs", - "http://www.w3.org/2001/XMLSchema-instance": "xsi", - # dublic core - "http://purl.org/dc/elements/1.1/": "dc", -} - - -def _raise_serialization_error(text): - raise TypeError( - "cannot serialize %r (type %s)" % (text, type(text).__name__) - ) - -def _encode(text, encoding): - try: - return text.encode(encoding, "xmlcharrefreplace") - except (TypeError, AttributeError): - _raise_serialization_error(text) - -def _escape_cdata(text): - # escape character data - try: - # it's worth avoiding do-nothing calls for strings that are - # shorter than 500 character, or so. assume that's, by far, - # the most common case in most applications. - if "&" in text: - text = text.replace("&", "&") - if "<" in text: - text = text.replace("<", "<") - if ">" in text: - text = text.replace(">", ">") - return text - except (TypeError, AttributeError): - _raise_serialization_error(text) - - -def _escape_attrib(text): - # escape attribute value - try: - if "&" in text: - text = text.replace("&", "&") - if "<" in text: - text = text.replace("<", "<") - if ">" in text: - text = text.replace(">", ">") - if "\"" in text: - text = text.replace("\"", """) - if "\n" in text: - text = text.replace("\n", " ") - return text - except (TypeError, AttributeError): - _raise_serialization_error(text) - -def _escape_attrib_html(text): - # escape attribute value - try: - if "&" in text: - text = text.replace("&", "&") - if "<" in text: - text = text.replace("<", "<") - if ">" in text: - text = text.replace(">", ">") - if "\"" in text: - text = text.replace("\"", """) - return text - except (TypeError, AttributeError): - _raise_serialization_error(text) - - -def _serialize_html(write, elem, qnames, namespaces, format): - tag = elem.tag - text = elem.text - if tag is Comment: - write("<!--%s-->" % _escape_cdata(text)) - elif tag is ProcessingInstruction: - write("<?%s?>" % _escape_cdata(text)) - else: - tag = qnames[tag] - if tag is None: - if text: - write(_escape_cdata(text)) - for e in elem: - _serialize_html(write, e, qnames, None, format) - else: - write("<" + tag) - items = elem.items() - if items or namespaces: - items.sort() # lexical order - for k, v in items: - if isinstance(k, QName): - k = k.text - if isinstance(v, QName): - v = qnames[v.text] - else: - v = _escape_attrib_html(v) - if qnames[k] == v and format == 'html': - # handle boolean attributes - write(" %s" % v) - else: - write(" %s=\"%s\"" % (qnames[k], v)) - if namespaces: - items = namespaces.items() - items.sort(key=lambda x: x[1]) # sort on prefix - for v, k in items: - if k: - k = ":" + k - write(" xmlns%s=\"%s\"" % (k, _escape_attrib(v))) - if format == "xhtml" and tag in HTML_EMPTY: - write(" />") - else: - write(">") - tag = tag.lower() - if text: - if tag == "script" or tag == "style": - write(text) - else: - write(_escape_cdata(text)) - for e in elem: - _serialize_html(write, e, qnames, None, format) - if tag not in HTML_EMPTY: - write("</" + tag + ">") - if elem.tail: - write(_escape_cdata(elem.tail)) - -def _write_html(root, - encoding=None, - default_namespace=None, - format="html"): - assert root is not None - data = [] - write = data.append - qnames, namespaces = _namespaces(root, default_namespace) - _serialize_html(write, root, qnames, namespaces, format) - if encoding is None: - return "".join(data) - else: - return _encode("".join(data)) - - -# -------------------------------------------------------------------- -# serialization support - -def _namespaces(elem, default_namespace=None): - # identify namespaces used in this tree - - # maps qnames to *encoded* prefix:local names - qnames = {None: None} - - # maps uri:s to prefixes - namespaces = {} - if default_namespace: - namespaces[default_namespace] = "" - - def add_qname(qname): - # calculate serialized qname representation - try: - if qname[:1] == "{": - uri, tag = qname[1:].split("}", 1) - prefix = namespaces.get(uri) - if prefix is None: - prefix = _namespace_map.get(uri) - if prefix is None: - prefix = "ns%d" % len(namespaces) - if prefix != "xml": - namespaces[uri] = prefix - if prefix: - qnames[qname] = "%s:%s" % (prefix, tag) - else: - qnames[qname] = tag # default element - else: - if default_namespace: - raise ValueError( - "cannot use non-qualified names with " - "default_namespace option" - ) - qnames[qname] = qname - except TypeError: - _raise_serialization_error(qname) - - # populate qname and namespaces table - try: - iterate = elem.iter - except AttributeError: - iterate = elem.getiterator # cET compatibility - for elem in iterate(): - tag = elem.tag - if isinstance(tag, QName) and tag.text not in qnames: - add_qname(tag.text) - elif isinstance(tag, util.string_type): - if tag not in qnames: - add_qname(tag) - elif tag is not None and tag is not Comment and tag is not PI: - _raise_serialization_error(tag) - for key, value in elem.items(): - if isinstance(key, QName): - key = key.text - if key not in qnames: - add_qname(key) - if isinstance(value, QName) and value.text not in qnames: - add_qname(value.text) - text = elem.text - if isinstance(text, QName) and text.text not in qnames: - add_qname(text.text) - return qnames, namespaces - -def to_html_string(element): - return _write_html(ElementTree(element).getroot(), format="html") - -def to_xhtml_string(element): - return _write_html(ElementTree(element).getroot(), format="xhtml") |