def rewrite_classes_ifi(query_object, format, fieldname):
"""
Rewrite all patent classifications in query
expression ast from OPS format to IFI format
"""
def token_callback(token, *args, **kwargs):
if len(token) == 1:
try:
class_ifi = ifi_convert_class(token[0])
token[0] = format_expression(format, fieldname, class_ifi)
except:
pass
walk_token_results(query_object.tokens, token_callback=token_callback)
def normalize_patentnumbers(tokens):
"""
normalize patent numbers in query
>>> tokens = parse_cql('pn=EP666666')
>>> normalize_patentnumbers(tokens)
>>> tokens_to_cql(tokens)
u'pn=EP0666666'
"""
def action(token, index, binop, term):
term = term.replace('"', '')
# apply document number normalization to values of certain indexes only
if index.lower() in indexes_publication_number:
term = normalize_patent(term, fix_kindcode=True)
if term:
token[2] = term
walk_token_results(tokens, triple_callback=action)
def rewrite_classes_ops(query_object):
"""
Rewrite all patent classifications in query
expression ast from IFI format to OPS format
"""
if not query_object:
return
def triple_callback(token, index, binop, term):
if index in ['ic', 'cpc']:
try:
# Decode IPC or CPC class from format "G01F000184"
patent_class = IpcDecoder(term)
# Encode IPC or CPC class to format "G01F1/84"
# token[2] has a reference to "term"
token[2] = patent_class.formatOPS()
except:
pass
walk_token_results(query_object.tokens, triple_callback=triple_callback)
