def match(tokenizer: Tokenizer):
token_string = ''
word_start_pointer = tokenizer.pointer_at()
while not tokenizer.reached_end():
if not tokenizer.peek().isdigit():
break
token_string += tokenizer.consume()
return Integer(word_start_pointer,
int(token_string)) if token_string else False
def match_baseword(tokenizer: Tokenizer) -> Keywords:
token_word = ''
matched_word = ''
pointer = tokenizer.pointer_at()
auxiliary_keywords = Keywords.HACK_AUX + Keywords.DEL_AUX
all_keywords = (Keywords.HACK, Keywords.DEL) + auxiliary_keywords
while not tokenizer.reached_end():
one_matched = False
token_word += tokenizer.peek()
for word in all_keywords:
if word.startswith(token_word):
if not one_matched:
tokenizer.consume()
one_matched = True
if word == token_word:
if matched_word:
tokenizer.purge_snapshot()
tokenizer.take_snapshot()
matched_word = word
break
else:
if not one_matched and matched_word:
tokenizer.rollback_snapshot()
break
if not one_matched and not matched_word:
return False
else:
return False
if matched_word in auxiliary_keywords:
auxiliary_word = matched_word
matched_word = Keywords.HACK if matched_word in Keywords.HACK_AUX else Keywords.DEL
Warnings.add_warning(
HackersDelightMatcher.LazyPersonDetected(
pointer, auxiliary_word, matched_word))
return matched_word
def match_baseword(tokenizer: Tokenizer) -> Keywords:
token_word = ''
matched_word = ''
pointer = tokenizer.pointer_at()
auxiliary_keywords = Keywords.HACK_AUX + Keywords.DEL_AUX
all_keywords = (Keywords.HACK, Keywords.DEL) + auxiliary_keywords
while not tokenizer.reached_end():
one_matched = False
token_word += tokenizer.peek()
for word in all_keywords:
if word.startswith(token_word):
if not one_matched:
tokenizer.consume()
one_matched = True
if word == token_word:
if matched_word:
tokenizer.purge_snapshot()
tokenizer.take_snapshot()
matched_word = word
break
else:
if not one_matched and matched_word:
tokenizer.rollback_snapshot()
break
if not one_matched and not matched_word:
return False
else:
return False
if matched_word in auxiliary_keywords:
auxiliary_word = matched_word
matched_word = Keywords.HACK if matched_word in Keywords.HACK_AUX else Keywords.DEL
Warnings.add_warning(HackersDelightMatcher.LazyPersonDetected(pointer, auxiliary_word, matched_word))
return matched_word