Case sensitivity on selectors

[foxx]

If an XML doc contains an element name which is not lower case, bad things happen.

It would seem this is related to #84, and indeed setting parser='xml' fixed the problem.. but this really should be better documented, or even auto-detected.

However even with this fix, mixed case tags are not picked up correctly when using closest() or parents(), this is a bug.

It's also worth mentioning that this problem did not happen on BeautifulSoup.

Here is a small script that will reproduce the behaviour;

#!/usr/bin/env python
from pyquery import PyQuery as pq
import unittest

from bs4 import BeautifulStoneSoup

xmldoc = """
<hello>
  <subFamily DsubFamily="helloWorld">
    <wtf>
    </wtf>
  </subFamily>
  <subFamily DsubFamily="helloWorld">
    <wtf>
    </wtf>
  </subFamily>
</hello>
"""

class BugTestCase(unittest.TestCase):
    def test_case_selector_upper(self):
        doc = pq(xmldoc)
        hello = doc("hello")
        self.assertEquals(
            len(hello("subFamily")), 1)

    def test_case_selector_lower(self):
        doc = pq(xmldoc)
        hello = doc("hello")
        self.assertEquals(
            len(hello("subfamily")), 1)

    def test_case_broken_closest(self):
        doc = pq(xmldoc)
        hello = doc("hello")

        self.assertEquals(
            len(hello.closest("subFamily")), 1)

    def test_bs(self):
        soup = BeautifulStoneSoup(xmldoc)
        self.assertEquals(
            len(soup.find_all("subFamily")), 2)

        self.assertTrue(
            soup.find("wtf").findParent("subFamily"))

if __name__ == '__main__':
    unittest.main()

$ pip show pyquery
Version: 1.2.9