author | Aurelien Campeas <aurelien.campeas@logilab.fr> |
Mon, 23 Apr 2012 18:01:30 +0200 | |
branch | stable |
changeset 8374 | 04054efc0a54 |
parent 7014 | 7e3e80f4179a |
child 8695 | 358d8bed9626 |
permissions | -rw-r--r-- |
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# copyright 2003-2010 LOGILAB S.A. (Paris, FRANCE), all rights reserved. |
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# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr |
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3 |
# |
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4 |
# This file is part of CubicWeb. |
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parents:
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5 |
# |
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6 |
# CubicWeb is free software: you can redistribute it and/or modify it under the |
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7 |
# terms of the GNU Lesser General Public License as published by the Free |
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8 |
# Software Foundation, either version 2.1 of the License, or (at your option) |
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9 |
# any later version. |
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# |
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# CubicWeb is distributed in the hope that it will be useful, but WITHOUT |
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS |
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# FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more |
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# details. |
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15 |
# |
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# You should have received a copy of the GNU Lesser General Public License along |
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# with CubicWeb. If not, see <http://www.gnu.org/licenses/>. |
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"""defines a validating HTML parser used in web application tests""" |
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import re |
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import sys |
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from lxml import etree |
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||
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from logilab.common.deprecation import class_deprecated |
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from cubicweb.view import STRICT_DOCTYPE, TRANSITIONAL_DOCTYPE |
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STRICT_DOCTYPE = str(STRICT_DOCTYPE) |
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TRANSITIONAL_DOCTYPE = str(TRANSITIONAL_DOCTYPE) |
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ERR_COUNT = 0 |
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class Validator(object): |
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def parse_string(self, data, sysid=None): |
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try: |
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data = self.preprocess_data(data) |
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return PageInfo(data, etree.fromstring(data, self.parser)) |
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except etree.XMLSyntaxError, exc: |
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def save_in(fname=''): |
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file(fname, 'w').write(data) |
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new_exc = AssertionError(u'invalid xml %s' % exc) |
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new_exc.position = exc.position |
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raise new_exc |
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def preprocess_data(self, data): |
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return data |
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class DTDValidator(Validator): |
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def __init__(self): |
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Validator.__init__(self) |
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# XXX understand what's happening under windows |
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self.parser = etree.XMLParser(dtd_validation=sys.platform != 'win32') |
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def preprocess_data(self, data): |
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"""used to fix potential blockquote mess generated by docutils""" |
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if STRICT_DOCTYPE not in data: |
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return data |
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# parse using transitional DTD |
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data = data.replace(STRICT_DOCTYPE, TRANSITIONAL_DOCTYPE) |
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tree = etree.fromstring(data, self.parser) |
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namespace = tree.nsmap.get(None) |
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# this is the list of authorized child tags for <blockquote> nodes |
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expected = 'p h1 h2 h3 h4 h5 h6 div ul ol dl pre hr blockquote address ' \ |
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'fieldset table form noscript ins del script'.split() |
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if namespace: |
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blockquotes = tree.findall('.//{%s}blockquote' % namespace) |
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expected = ['{%s}%s' % (namespace, tag) for tag in expected] |
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else: |
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blockquotes = tree.findall('.//blockquote') |
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# quick and dirty approach: remove all blockquotes |
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for blockquote in blockquotes: |
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parent = blockquote.getparent() |
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parent.remove(blockquote) |
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data = etree.tostring(tree) |
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return '<?xml version="1.0" encoding="UTF-8"?>%s\n%s' % ( |
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STRICT_DOCTYPE, data) |
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class SaxOnlyValidator(Validator): |
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def __init__(self): |
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Validator.__init__(self) |
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self.parser = etree.XMLParser() |
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class XMLDemotingValidator(SaxOnlyValidator): |
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""" some views produce html instead of xhtml, using demote_to_html |
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this is typically related to the use of external dependencies |
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which do not produce valid xhtml (google maps, ...) |
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""" |
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__metaclass__ = class_deprecated |
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def preprocess_data(self, data): |
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if data.startswith('<?xml'): |
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self.parser = etree.XMLParser() |
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else: |
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self.parser = etree.HTMLParser() |
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return data |
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103 |
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class HTMLValidator(Validator): |
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def __init__(self): |
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Validator.__init__(self) |
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self.parser = etree.HTMLParser() |
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class PageInfo(object): |
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"""holds various informations on the view's output""" |
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def __init__(self, source, root): |
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self.source = source |
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self.etree = root |
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self.source = source |
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self.raw_text = u''.join(root.xpath('//text()')) |
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self.namespace = self.etree.nsmap |
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self.default_ns = self.namespace.get(None) |
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self.a_tags = self.find_tag('a') |
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self.h1_tags = self.find_tag('h1') |
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self.h2_tags = self.find_tag('h2') |
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self.h3_tags = self.find_tag('h3') |
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self.h4_tags = self.find_tag('h4') |
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self.input_tags = self.find_tag('input') |
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self.title_tags = [self.h1_tags, self.h2_tags, self.h3_tags, self.h4_tags] |
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def _iterstr(self, tag): |
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if self.default_ns is None: |
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return ".//%s" % tag |
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else: |
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return ".//{%s}%s" % (self.default_ns, tag) |
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|
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def matching_nodes(self, tag, **attrs): |
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for elt in self.etree.iterfind(self._iterstr(tag)): |
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eltattrs = elt.attrib |
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for attr, value in attrs.iteritems(): |
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140 |
try: |
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141 |
if eltattrs[attr] != value: |
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142 |
break |
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143 |
except KeyError: |
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144 |
break |
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145 |
else: # all attributes match |
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146 |
yield elt |
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147 |
|
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148 |
def has_tag(self, tag, nboccurs=1, **attrs): |
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149 |
"""returns True if tag with given attributes appears in the page |
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150 |
`nbtimes` (any if None) |
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151 |
""" |
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152 |
for elt in self.matching_nodes(tag, **attrs): |
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153 |
if nboccurs is None: # no need to check number of occurences |
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154 |
return True |
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155 |
if not nboccurs: # too much occurences |
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|
156 |
return False |
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157 |
nboccurs -= 1 |
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|
158 |
if nboccurs == 0: # correct number of occurences |
7e3e80f4179a
[testlib pageinfo] extract matching_node method from has_tag to ease looking for a node with a given set of attributes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
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changeset
|
159 |
return True |
7e3e80f4179a
[testlib pageinfo] extract matching_node method from has_tag to ease looking for a node with a given set of attributes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
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diff
changeset
|
160 |
return False # no matching tag/attrs |
7e3e80f4179a
[testlib pageinfo] extract matching_node method from has_tag to ease looking for a node with a given set of attributes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
6977
diff
changeset
|
161 |
|
1945
2b59d9ae17ae
new argument telling if we want text or (text / attrs), keeping bw compat
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
1485
diff
changeset
|
162 |
def find_tag(self, tag, gettext=True): |
0 | 163 |
"""return a list which contains text of all "tag" elements """ |
7014
7e3e80f4179a
[testlib pageinfo] extract matching_node method from has_tag to ease looking for a node with a given set of attributes
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parents:
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diff
changeset
|
164 |
iterstr = self._iterstr(tag) |
1945
2b59d9ae17ae
new argument telling if we want text or (text / attrs), keeping bw compat
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
1485
diff
changeset
|
165 |
if not gettext or tag in ('a', 'input'): |
6977
cb78108bf603
[testlib] new method on page info object to ensure some tag with arbitrary attributes is found
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
6772
diff
changeset
|
166 |
return [(elt.text, elt.attrib) |
cb78108bf603
[testlib] new method on page info object to ensure some tag with arbitrary attributes is found
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
6772
diff
changeset
|
167 |
for elt in self.etree.iterfind(iterstr)] |
cb78108bf603
[testlib] new method on page info object to ensure some tag with arbitrary attributes is found
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
6772
diff
changeset
|
168 |
return [u''.join(elt.xpath('.//text()')) |
cb78108bf603
[testlib] new method on page info object to ensure some tag with arbitrary attributes is found
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
6772
diff
changeset
|
169 |
for elt in self.etree.iterfind(iterstr)] |
1485 | 170 |
|
0 | 171 |
def appears(self, text): |
172 |
"""returns True if <text> appears in the page""" |
|
173 |
return text in self.raw_text |
|
174 |
||
175 |
def __contains__(self, text): |
|
176 |
return text in self.source |
|
1485 | 177 |
|
0 | 178 |
def has_title(self, text, level=None): |
179 |
"""returns True if <h?>text</h?> |
|
180 |
||
181 |
:param level: the title's level (1 for h1, 2 for h2, etc.) |
|
182 |
""" |
|
183 |
if level is None: |
|
184 |
for hlist in self.title_tags: |
|
185 |
if text in hlist: |
|
186 |
return True |
|
187 |
return False |
|
188 |
else: |
|
189 |
hlist = self.title_tags[level - 1] |
|
190 |
return text in hlist |
|
191 |
||
192 |
def has_title_regexp(self, pattern, level=None): |
|
193 |
"""returns True if <h?>pattern</h?>""" |
|
194 |
sre = re.compile(pattern) |
|
195 |
if level is None: |
|
196 |
for hlist in self.title_tags: |
|
197 |
for title in hlist: |
|
198 |
if sre.match(title): |
|
199 |
return True |
|
200 |
return False |
|
201 |
else: |
|
202 |
hlist = self.title_tags[level - 1] |
|
203 |
for title in hlist: |
|
204 |
if sre.match(title): |
|
205 |
return True |
|
206 |
return False |
|
1485 | 207 |
|
0 | 208 |
def has_link(self, text, url=None): |
209 |
"""returns True if <a href=url>text</a> was found in the page""" |
|
210 |
for link_text, attrs in self.a_tags: |
|
211 |
if text == link_text: |
|
212 |
if url is None: |
|
213 |
return True |
|
214 |
try: |
|
215 |
href = attrs['href'] |
|
216 |
if href == url: |
|
217 |
return True |
|
218 |
except KeyError: |
|
219 |
continue |
|
220 |
return False |
|
1485 | 221 |
|
0 | 222 |
def has_link_regexp(self, pattern, url=None): |
223 |
"""returns True if <a href=url>pattern</a> was found in the page""" |
|
224 |
sre = re.compile(pattern) |
|
225 |
for link_text, attrs in self.a_tags: |
|
226 |
if sre.match(link_text): |
|
227 |
if url is None: |
|
228 |
return True |
|
229 |
try: |
|
230 |
href = attrs['href'] |
|
231 |
if href == url: |
|
232 |
return True |
|
233 |
except KeyError: |
|
234 |
continue |
|
235 |
return False |
|
2773
b2530e3e0afb
[testlib] #345052 and #344207: major test lib refactoring/cleanup + update usage
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
1977
diff
changeset
|
236 |
|
b2530e3e0afb
[testlib] #345052 and #344207: major test lib refactoring/cleanup + update usage
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
1977
diff
changeset
|
237 |
VALMAP = {None: None, 'dtd': DTDValidator, 'xml': SaxOnlyValidator} |