def _get_article_title(tree):
"""
Given an ElementTree, returns article title.
"""
title = ElementTree(tree).find('front/article-meta/title-group/article-title')
if title is None:
title = ElementTree(tree).find('front/article-meta/article-categories/subj-group/subject')
return ' '.join(title.itertext())
def _get_article_abstract(tree):
"""
Given an ElementTree, returns article abstract.
"""
abstract = ElementTree(tree).find('front/article-meta/abstract')
if abstract is not None:
return ' '.join(abstract.itertext())
else:
return ''
def _get_article_license_url(tree):
"""
Given an ElementTree, returns article license URL.
"""
license = ElementTree(tree).find('front/article-meta/permissions/license')
try:
return license.attrib['{http://www.w3.org/1999/xlink}href']
except AttributeError: # license statement is missing
return ''
except KeyError: # license statement is in plain text
license_text = ' '.join(license.itertext()).encode('utf-8')
if license_text in license_url_equivalents:
return license_url_equivalents[license_text]
else:
# FIXME: revert this to an exception some time in the future
filename = '/tmp/pmc-' + md5(license_text).hexdigest()
with open(filename, 'w') as f:
f.write(license_text)
stderr.write("Unknown license statement:\n%s\n" % \
str(license_text))
