def tokenize(self):
"""Generate tokens from the source."""
if self.tokens is not None:
return
try:
self.tokens = list(tokenize.generate_tokens(self.source.readline))
except tokenize.TokenError as err:
raise PycodeError('tokenizing failed', err)
self.source.close()
def tokenize(self):
"""Generate tokens from the source."""
if self.tokens is not None:
return
try:
self.tokens = list(tokenize.generate_tokens(self.source.readline))
except tokenize.TokenError as err:
raise PycodeError('tokenizing failed', err)
self.source.close()
def __init__(self, filename, stream=None):
close_stream = None
if stream is None:
stream = open(filename)
close_stream = stream.close
self.filename = filename
self.stream = stream
self.generator = tokenize.generate_tokens(stream.readline)
self.gettoken() # Initialize lookahead
self.dfas, self.startsymbol = self.parse()
if close_stream is not None:
close_stream()
self.first = {} # map from symbol name to set of tokens
self.addfirstsets()
def parse_string(self, text, debug=False):
"""Parse a string and return the syntax tree."""
tokens = tokenize.generate_tokens(generate_lines(text).next)
return self.parse_tokens(tokens, debug)
def parse_stream_raw(self, stream, debug=False):
"""Parse a stream and return the syntax tree."""
tokens = tokenize.generate_tokens(stream.readline)
return self.parse_tokens(tokens, debug)
def tokenize(self):
"""Generate tokens from the source."""
if self.tokens is not None:
return
self.tokens = list(tokenize.generate_tokens(self.source.readline))
self.source.close()