def parse(uri, start, followers, null):
k0 = time.time()
lexer = sparql_tokens.Lexer()
k1 = time.time()
ip = webAccess.urlopenForRDF(uri, None)
lexer.input(ip)
parser = Earley(start,followers, null)
print 'ready to parse\n\n'
k2 = time.time()
return (parser.parse(lexer.token)[-1].productions[start], k1 - k0, k1)
def parse(uri, start, followers, null):
k0 = time.time()
lexer = sparql_tokens.Lexer()
k1 = time.time()
ip = webAccess.urlopenForRDF(uri, None)
lexer.input(ip)
parser = Earley(start, followers, null)
print 'ready to parse\n\n'
k2 = time.time()
return (parser.parse(lexer.token)[-1].productions[start], k1 - k0, k1)
def main():
global already, agenda, errors
parseAs = None
grammarFile = None
parseFile = None
yaccFile = None
global verbose
global g
verbose = 0
lumped = 1
try:
opts, args = getopt.getopt(
sys.argv[1:], "ha:v:p:g:y:",
["help", "as=", "verbose=", "parse=", "grammar=", "yacc="])
except getopt.GetoptError:
usage()
sys.exit(2)
output = None
for o, a in opts:
if o in ("-h", "--help"):
usage()
sys.exit()
if o in ("-v", "--verbose"):
verbose = int(a)
diag.chatty_flag = int(a)
if o in ("-a", "--as"):
parseAs = uripath.join(uripath.base(), a)
if o in ("-p", "--parse"):
parseFile = uripath.join(uripath.base(), a)
if o in ("-g", "--grammar"):
grammarFile = uripath.join(uripath.base(), a)
if o in ("-y", "--yacc"):
yaccFile = uripath.join(uripath.base(), a)[5:] # strip off file:
# if testFiles == []: testFiles = [ "/dev/stdin" ]
if not parseAs:
usage()
sys.exit(2)
parseAs = uripath.join(uripath.base(), parseAs)
if not grammarFile:
grammarFile = parseAs.split("#")[0] # strip off fragid
else:
grammarFile = uripath.join(uripath.base(), grammarFile)
# The Grammar formula
progress("Loading " + grammarFile)
start = clock()
g = load(grammarFile)
taken = clock() - start + 1
progress("Loaded %i statements in %fs, ie %f/s." %
(len(g), taken, len(g) / taken))
document = g.newSymbol(parseAs)
already = []
agenda = []
errors = []
doProduction(document)
while agenda:
x = agenda[0]
agenda = agenda[1:]
already.append(x)
doProduction(x)
if errors != []:
progress("###### FAILED with %i errors." % len(errors))
for s in errors:
progress("\t%s" % s)
exit(-2)
else:
progress("Ok for predictive parsing")
#if parser.verb: progress "Branch table:", branchTable
if verbose:
progress("Literal terminals: %s" % literalTerminals.keys())
progress("Token regular expressions:")
for r in tokenRegexps:
progress("\t%s matches %s" % (r, tokenRegexps[r].pattern))
if yaccFile:
yacc = open(yaccFile, "w")
yaccConvert(yacc, document, tokenRegexps)
yacc.close()
if parseFile == None: exit(0)
ip = webAccess.urlopenForRDF(parseFile, None)
lexer = sparql_tokens.Lexer()
lexer.input(ip)
#str = ip.read().decode('utf_8')
sink = g.newFormula()
keywords = g.each(pred=BNF.keywords, subj=document)
keywords = [a.value() for a in keywords]
p = PredictiveParser(sink=sink,
top=document,
branchTable=branchTable,
tokenSet=tokenSet,
keywords=keywords)
p.verb = 1
start = clock()
#print lexer.token()
print p.parse(lexer.token)
taken = clock() - start + 1
# progress("Loaded %i chars in %fs, ie %f/s." %
# (len(str), taken, len(str)/taken))
progress("Parsed <%s> OK" % parseFile)
sys.exit(0) # didn't crash
def main():
global already, agenda, errors
parseAs = None
grammarFile = None
parseFile = None
yaccFile = None
global verbose
global g
verbose = 0
lumped = 1
try:
opts, args = getopt.getopt(sys.argv[1:], "ha:v:p:g:y:",
["help", "as=", "verbose=", "parse=", "grammar=", "yacc="])
except getopt.GetoptError:
usage()
sys.exit(2)
output = None
for o, a in opts:
if o in ("-h", "--help"):
usage()
sys.exit()
if o in ("-v", "--verbose"):
verbose =int(a)
diag.chatty_flag = int(a)
if o in ("-a", "--as"):
parseAs = uripath.join(uripath.base(), a)
if o in ("-p", "--parse"):
parseFile = uripath.join(uripath.base(), a)
if o in ("-g", "--grammar"):
grammarFile = uripath.join(uripath.base(), a)
if o in ("-y", "--yacc"):
yaccFile = uripath.join(uripath.base(), a)[5:] # strip off file:
# if testFiles == []: testFiles = [ "/dev/stdin" ]
if not parseAs:
usage()
sys.exit(2)
parseAs = uripath.join(uripath.base(), parseAs)
if not grammarFile:
grammarFile = parseAs.split("#")[0] # strip off fragid
else:
grammarFile = uripath.join(uripath.base(), grammarFile)
# The Grammar formula
progress("Loading " + grammarFile)
start = clock()
g = load(grammarFile)
taken = clock() - start + 1
progress("Loaded %i statements in %fs, ie %f/s." %
(len(g), taken, len(g)/taken))
document = g.newSymbol(parseAs)
already = []
agenda = []
errors = []
doProduction(document)
while agenda:
x = agenda[0]
agenda = agenda[1:]
already.append(x)
doProduction(x)
if errors != []:
progress("###### FAILED with %i errors." % len(errors))
for s in errors: progress ("\t%s" % s)
exit(-2)
else:
progress( "Ok for predictive parsing")
#if parser.verb: progress "Branch table:", branchTable
if verbose:
progress( "Literal terminals: %s" % literalTerminals.keys())
progress("Token regular expressions:")
for r in tokenRegexps:
progress( "\t%s matches %s" %(r, tokenRegexps[r].pattern) )
if yaccFile:
yacc=open(yaccFile, "w")
yaccConvert(yacc, document, tokenRegexps)
yacc.close()
if parseFile == None: exit(0)
ip = webAccess.urlopenForRDF(parseFile, None)
str = ip.read().decode('utf_8')
sink = g.newFormula()
keywords = g.each(pred=BNF.keywords, subj=document)
keywords = [a.value() for a in keywords]
p = PredictiveParser(sink=sink, top=document, branchTable= branchTable,
tokenRegexps= tokenRegexps, keywords = keywords)
p.verb = verbose
start = clock()
p.parse(str)
taken = clock() - start + 1
progress("Loaded %i chars in %fs, ie %f/s." %
(len(str), taken, len(str)/taken))
progress("Parsed <%s> OK" % parseFile)
sys.exit(0) # didn't crash
print "No server root URL path given (--webroot)",
webroot = "/archive"
print "Assuming " + webroot
if (uri == None):
print "No URI given\n\n" + __doc__
sys.exit(2)
if (uri[:7] != 'http://' and uri[:7] != 'htts://'):
print "URI is not http[s]:// URI \n" + __doc__
sys.exit(2)
#try:
if filename != None:
datafile = open(filename, "r")
else:
datafile = urlopenForRDF(uri)
headers = datafile.headers
print "Headers: " + ` headers `
#except:
# print "Cannot access file \n" + filename + "\n"
# sys.exit(3);
data = datafile.read()
print "Data length: ", len(data)
if data.find("rdf") < 0:
print "File does not look like a data file:\n" + data[:100] + "\n"
sys.exit(3)
path = root + '/' + uri[7:]
