def toxml (self):
"""
Return this tag/data formatted as XML.
"""
if self.type == self.START:
ret = ['<%s' % self.nodeNames[-1]]
for i in xrange(len(self.atts)):
att = self.atts.item (i)
ret.append (u' %s="%s"' % (att.name, HTMLUtils.encodeText (att.nodeValue)))
ret.append ('>')
return ''.join (ret)
elif self.type == self.END:
return '</%s>' % self.nodeNames[-1]
else:
return HTMLUtils.encodeText (self.data)
def _convertParseExceptions(callable, xmlString=None):
"""
Convert exceptions raised by XML parsers to UserErrors describing the
error.
"""
try:
return callable()
except xml.parsers.expat.ExpatError, e:
context = ''
if xmlString:
try:
lines = xmlString.split('\n')
pos = max(e.offset - 10, 0)
line = lines[e.lineno - 1]
context = " (near <q>%s</q>)" % HTMLUtils.encodeText(line[pos:pos + 20])
context = context.replace('%', '%%')
except:
pass
raise Errors.UserError("at line %%s, column %%s%s: %%s" % context,
e.lineno, e.offset,
xml.parsers.expat.ErrorString(e.code))
def __init__(self, msg, *args):
self.msg = msg % tuple(HTMLUtils.encodeText(arg) for arg in args)
line = lines[e.lineno - 1]
context = " (near <q>%s</q>)" % HTMLUtils.encodeText(line[pos:pos + 20])
context = context.replace('%', '%%')
except:
pass
raise Errors.UserError("at line %%s, column %%s%s: %%s" % context,
e.lineno, e.offset,
xml.parsers.expat.ErrorString(e.code))
except xml.sax.SAXParseException, e:
context = ''
if xmlString:
try:
lines = xmlString.split('\n')
pos = max(e.getColumnNumber() - 10, 0)
line = lines[e.getLineNumber() - 1]
context = " (near <q>%s</q>)" % HTMLUtils.encodeText(line[pos:pos + 20])
context = context.replace('%', '%%')
except:
pass
raise Errors.UserError("at line %%s, column %%s%s: %%s" % context,
e.getLineNumber(), e.getColumnNumber(),
e.getMessage())
except ValueError, e:
raise Errors.UserError("Parse error: %s", str(e))
class ParsedXml:
"""
Class representing a parsed piece of XML, and providing several convenience
methods for getting at the parsed XML.
The parsed piece of XML is a single well-formed tag (ie, has exactly one
