class PubmedArticleSet(handler.ContentHandler):
def __init__(self):
handler.feature_external_ges = "false"
self.docs = {}
self.doc = None
self.chars = ""
def startElement(self, name, attr):
if name == 'PubmedArticle' or name == 'PubmedBookArticle':
self.doc = Document()
self.chars = ""
def endElement(self, name):
if name == 'PubmedArticle':
self.docs[self.doc.pmid] = self.doc
if name == 'PMID' and self.doc.pmid == None:
self.doc.pmid = self.text()
if name == 'ArticleTitle':
self.doc.title = self.text()
if name == 'AbstractText':
if self.doc.abstract == None:
self.doc.abstract = self.text()
else:
self.doc.abstract += self.text()
if name == 'DescriptorName':
self.doc.addMeSH(self.text())
def characters(self, data):
self.chars += data
def text(self):
return self.chars.strip().encode('ascii', 'ignore')
## Method to parse a PubmedArticleSet XML file.
# @param location The location of the xml file to parse
# return A PubmedArticleSet object
@classmethod
def parse(self, location):
parser = make_parser()
parser.setFeature("http://xml.org/sax/features/external-general-entities", False)
parser.setFeature("http://xml.org/sax/features/external-parameter-entities", False)
handler = PubmedArticleSet()
parser.setContentHandler(handler)
try:
f = open(location, 'r')
parser.parse(f)
f.close()
except Exception, e:
raise RuntimeError, "Could not parse PubmedArticleSet XML file at %s" % location
return handler
