"<" in song lyrics causes a traceback

[Andreas Preikschat]

Hello,

When a song's lyrics contains "<" (and you try to preview the song) then the following traceback is shown.

**OpenLP Bug Report**
Version: {u'full': u'1.9.7-bzr1765', u'version': u'1.9.7', u'build': u'bzr1765'}

--- Exception Traceback ---
Traceback (most recent call last):
  File "/home/andreas/Projekte/openlp/trunk/openlp/core/lib/mediamanageritem.py", line 506, in onClickPressed
    self.onPreviewClick()
  File "/home/andreas/Projekte/openlp/trunk/openlp/core/lib/mediamanageritem.py", line 529, in onPreviewClick
    serviceItem = self.buildServiceItem()
  File "/home/andreas/Projekte/openlp/trunk/openlp/core/lib/mediamanageritem.py", line 623, in buildServiceItem
    if self.generateSlideData(serviceItem, item, xmlVersion, remote):
  File "/home/andreas/Projekte/openlp/trunk/openlp/plugins/songs/lib/mediaitem.py", line 509, in generateSlideData
    service_item.xml_version = self.openLyrics.song_to_xml(song)
  File "/home/andreas/Projekte/openlp/trunk/openlp/plugins/songs/lib/xml.py", line 341, in song_to_xml
    virtual_verse, tags_element)
  File "/home/andreas/Projekte/openlp/trunk/openlp/plugins/songs/lib/xml.py", line 450, in _add_text_with_tags_to_lines
    element = etree.XML(text)
  File "lxml.etree.pyx", line 2723, in lxml.etree.XML (src/lxml/lxml.etree.c:52448)
  File "parser.pxi", line 1573, in lxml.etree._parseMemoryDocument (src/lxml/lxml.etree.c:79932)
  File "parser.pxi", line 1445, in lxml.etree._parseDoc (src/lxml/lxml.etree.c:78709)
  File "parser.pxi", line 920, in lxml.etree._BaseParser._parseUnicodeDoc (src/lxml/lxml.etree.c:75083)
  File "parser.pxi", line 564, in lxml.etree._ParserContext._handleParseResultDoc (src/lxml/lxml.etree.c:71739)
  File "parser.pxi", line 645, in lxml.etree._handleParseResult (src/lxml/lxml.etree.c:72614)
  File "parser.pxi", line 585, in lxml.etree._raiseParseError (src/lxml/lxml.etree.c:71955)
XMLSyntaxError: StartTag: invalid element name, line 1, column 23

--- System information ---
Plattform: Linux-3.0-ARCH-i686-Intel-R-_Pentium-R-_4_CPU_1.80GHz-with-glibc2.0

--- Library Versions ---
Python: 2.7.2
Qt4: 4.7.4
Phonon: 4.5.55
PyQt4: 4.8.5
SQLAlchemy: 0.7.2
BeautifulSoup: 3.2.0
lxml: 2.3.0
Chardet: 2.0.1
PyEnchant: 1.6.3
PySQLite: 1.0.1

[Jonathan Corwin (j-corwin)]

On a similar theme, when I have a song with an "&" in it and preview it, I get

Traceback (most recent call last):
  File "D:\OpenLP_Code\trunk\build\pyi.win32\OpenLP\outPYZ1.pyz/openlp.core.lib.mediamanageritem", line 516, in onSelectionChange
  File "D:\OpenLP_Code\trunk\build\pyi.win32\OpenLP\outPYZ1.pyz/openlp.core.lib.mediamanageritem", line 529, in onPreviewClick
  File "D:\OpenLP_Code\trunk\build\pyi.win32\OpenLP\outPYZ1.pyz/openlp.core.lib.mediamanageritem", line 623, in buildServiceItem
  File "D:\OpenLP_Code\trunk\build\pyi.win32\OpenLP\outPYZ1.pyz/openlp.plugins.songs.lib.mediaitem", line 509, in generateSlideData
  File "D:\OpenLP_Code\trunk\build\pyi.win32\OpenLP\outPYZ1.pyz/openlp.plugins.songs.lib.xml", line 341, in song_to_xml
  File "D:\OpenLP_Code\trunk\build\pyi.win32\OpenLP\outPYZ1.pyz/openlp.plugins.songs.lib.xml", line 450, in _add_text_with_tags_to_lines
  File "lxml.etree.pyx", line 2512, in lxml.etree.XML (src/lxml/lxml.etree.c:48057)
  File "parser.pxi", line 1545, in lxml.etree._parseMemoryDocument (src/lxml/lxml.etree.c:71812)
  File "parser.pxi", line 1417, in lxml.etree._parseDoc (src/lxml/lxml.etree.c:70608)
  File "parser.pxi", line 898, in lxml.etree._BaseParser._parseUnicodeDoc (src/lxml/lxml.etree.c:67148)
  File "parser.pxi", line 539, in lxml.etree._ParserContext._handleParseResultDoc (src/lxml/lxml.etree.c:63824)
  File "parser.pxi", line 625, in lxml.etree._handleParseResult (src/lxml/lxml.etree.c:64745)
  File "parser.pxi", line 565, in lxml.etree._raiseParseError (src/lxml/lxml.etree.c:64088)
XMLSyntaxError: xmlParseEntityRef: no name, line 1, column 22