How to use gotoT method in avocado

Best Python code snippet using avocado_python

sbc.py

Source:sbc.py

1from contextfree import *2import copy3class Item(object):4	def __init__(self, rule, dot):5		self.rule = rule6		self.dot = dot7	def dotV(self):8		if self.dot == len(self.rule.rhs):9			return None10		else:11			return self.rule.rhs[self.dot]12	def __eq__(self, i2):13		return type(self) == type(i2) and self.rule == i2.rule and self.dot == i2.dot14	def __ne__(self, i2):15		return not self.__eq__(self,i2)16	def __cmp__(self, i2):17		if type(self) != type(i2):18			return cmp(type(self), type(i2))19		if self.rule != i2.rule:20			return cmp(self.rule, i2.rule)21		return cmp(self.dot, i2.dot)22	def __hash__(self):23		return hash(type(self))^hash(self.rule) ^ hash(self.dot)24	def __repr__(self):25		s = str(self.rule.lhs) + ' ::= '26		for i in range(len(self.rule.rhs)):27			if self.dot == i:28				s += '.'29			s += str(self.rule.rhs[i])30		if self.dot == len(self.rule.rhs):31			s += '.'32		return s33class SuffItem(Item):34	def __repr__(self):35		s = str(self.rule.lhs) + ' ::= ...'36		for i in range(len(self.rule.rhs)):37			if self.dot == i:38				s += '.'39			if i >= self.dot:40				s += str(self.rule.rhs[i])41		if self.dot == len(self.rule.rhs):42			s += '.'43		return s44def closure(I, G):45	Q = list(I)46	J = set(I)47	while len(Q) > 0:48		i = Q.pop(0)49		B = i.dotV()50		for r in G.rules:51			if r.lhs == B:52				j = Item(r,0)53				if j not in J:54					Q.append(j)55					J.add(j)56			elif isinstance(i, SuffItem) and B == None:57				A = i.rule.lhs58				for dot in range(len(r.rhs)):59					if A == r.rhs[dot]:60						j = SuffItem(r, dot+1)61						if j not in J:62							Q.append(j)63							J.add(j)64				65	return frozenset(J)66def goto(I, X, G):67	J = set()68	for i in I:69		if i.dotV() != X:70			continue71		j = copy.copy(i)72		j.dot += 173		J.add(j)74	return closure(J, G)75def items(G):76	inititems = set()77	for r in G.rules:78		for dot in range(len(r.rhs)):79			if r.rhs[dot] in G.T:80				inititems.add(SuffItem(r, dot))81	print inititems82	inititems = closure(inititems, G)83	print inititems84	acceptitems = closure(set([SuffItem(G.rules[0],3)]), G)85	C = set([inititems])86	Q = list(C)87	while len(Q) > 0:88		I = Q.pop(0)89		for X in G.V:90			J = goto(I, X, G)91			if J == set() or J in C:92				continue93			Q.append(J)94			C.add(J)95	return (inititems, acceptitems, C)96# this isn't working yet...problem, have to number item sets....97def tables(G):98	(Iinit,Iaccept,C) = items(G)99	action = {}100	gotot = {}101	for I in C:102		for i in I:103			if i.dotV() in G.T:104				a = i.dotV()105				J = goto(I,a,G)106				if J not in C:107					continue108				act = ('shift', J)109				if (I,a) in action and action[I,a] != act:110					print 'conflict: ' + str(I) + ' '+ str (a) + '\n' + str(act) + '\n' + str(action[I,a]) + '\n'111					return112				action[I,a] = act113			elif not isinstance(i, SuffItem) and i.dotV() == None: # A -> alpha . ugly, but meh114				for b in G.follow[i.rule.lhs]:115					act = ('reduce', i.rule)116					if (I,b) in action and action[I,b] != act:117						print I118						print 'conflict: ' + str(I) + ' ' + str(b) + '\n' + str(act) + '\n' + str(action[I,b]) + '\n'119						return120					action[I,b] = act121#		if iaccpet in I: # accept122#			print 'got accept'123#			eof = iaccpet.dotV()124#			act = ('accept', None)125#			if (I,eof) in action:126#				print 'conflict: \n' + str(act) + '\n' + str(action[I,eof]) + '\n'127#				return128#			action[I,eof] = act129		for A in G.NT:130			J = goto(I,A,G)131			if J not in C:132				continue133			gotot[I,A] = J134	return (Iinit, Iaccept, action, gotot)135def sbc(w, s0, f, actiont, gotot):136	xs=[]137	x = []138	e=[]139	S=[s0]140	pos = 0141	while True:142		if pos >= len(w):143			break144		a = w[pos]145		s = S[len(S)-1]146		if (s,a) not in actiont: # error147			e.append(pos)148			xs.append(x)149			x = []150			S.append(s0)151			pos +=1152			continue153		(act, arg) = actiont[s,a]154		if act == 'shift':155			S.append(arg)156			x.append(a)157			pos +=1158		elif act == 'reduce':159			x.append(arg)160			A = arg.lhs161			beta = arg.rhs162			del S[len(S)-len(beta):len(S)] # pop |beta| states163			s = S[len(S)-1]164			S.append(gotot[s,A])165	xs.append(x)166	return (xs,e)167def slr(w, s0, f, actiont, gotot):168	x = []169	S = [s0]170	pos = 0171	while True:172		if pos >= len(w):173			break;174		a = w[pos]175		ta = type(a)176		s = S[len(S)-1]177		if (s,ta) not in actiont: # error178			return False, None179		(act, arg) = actiont[s,ta]180		if act == 'shift':181			S.append(arg)182			x.append(a)183			pos += 1184		elif act == 'reduce': # A -> beta185			x.append(arg)186			A = arg.lhs187			beta = arg.rhs188			del S[len(S)-len(beta):len(S)] # pop |beta| states189			s = S[len(S)-1]190			S.append(gotot[s,A])191	if S[len(S)-1] == f:192		return True, x193	else:194		return False, None195class SBC(object):196	def __init__(self, G):197		self.G = G198		self.Grev = G.rev()199		(self.init, self.accept, self.action, self.goto) = tables(self.G)200		(self.rinit, self.raccept, self.raction, self.rgoto) = tables(self.Grev)201	def parse(self, w):202		xs=[]203		x = []204		e=[]205		S=[self.init]206		pos = 0207		while True:208			if pos >= len(w):209				break210			a = w[pos]211			ta = type(a)212			s = S[len(S)-1]213			if (s,ta) not in self.action: # error214				pos0 = self.pback(w, pos)215				e.append((pos0,pos))216				xs.append(x)217				x = []218				S.append(self.init)219				if pos0 == pos: # not sure if this is right...could be non-terminating220					pos += 1221				#pos +=1222				continue223			(act, arg) = self.action[s,ta]224			if act == 'shift':225				S.append(arg)226				x.append(a)227				pos +=1228			elif act == 'reduce':229				x.append(arg)230				A = arg.lhs231				beta = arg.rhs232				del S[len(S)-len(beta):len(S)] # pop |beta| states233				s = S[len(S)-1]234				S.append(self.goto[s,A])235		xs.append(x)236		return (xs,e)237	def pback(self, w, pos):238		S=[self.rinit]239		while True:240			if pos < 0:241				break242			a = w[pos]243			ta = type(a)244			s = S[len(S)-1]245			if (s,ta) not in self.raction: # error246				return pos247			(act, arg) = self.raction[s,ta]248			if act == 'shift':249				S.append(arg)250				pos -= 1251			elif act == 'reduce':252				A = arg.lhs253				beta = arg.rhs254				del S[len(S)-len(beta):len(S)] # pop |beta| states255				s = S[len(S)-1]256				S.append(self.rgoto[s,A])257		return pos258G = Grammar([259	Rule('S', ('bof', 'E', 'eof')),260	Rule('E', ('E', '+', 'T')),261	Rule('E', ('T',)),262	Rule('T', ('T', '*', 'F')),263	Rule('T', ('F',)),264	Rule('F', ('(', 'E', ')')),265	Rule('F', ('c',))...

enums.py

Source:enums.py

1from enum import Enum, auto2# For functions and variables3class Types(Enum):4    BOOL = "bool"5    FLOAT = "float"6    INT = "int"7    STRING = "string"8    VOID = "void"9    PTR = "ptr"10# For quadruples and VM's switch execution11class Operations(Enum):12    AND = "&&"13    ASSIGNOP = "="14    DIFF = "!="15    DIVIDES = "/"16    ENDSUB = "ENDSUB"17    EQ = "=="18    EQGT = ">="19    EQLT = "<="20    ERA = "ERA"21    GOSUB = "GOSUB"22    GOTO = "GOTO"23    GOTOF = "GOTOF"24    GOTOT = "GOTOT"25    GT = ">"26    LT = "<"27    MINUS = "-"28    OPT_ASSIGN = "OPT_ASSIGN"29    OPT_PARAM = "OPT_PARAM"30    OR = "||"31    PARAM = "PARAM"32    PLUS = "+"33    PRINT = "PRINT"34    READ = "READ"35    SAVEPTR = "SAVEPTR"36    TIMES = "*"37    VER = "VER"38# To check keywords and types of actions permitted39class ScopeTypes(Enum):40    CLASS = auto()41    CLASS_FUNCTION = auto()42    FUNCTION = auto()43    GENERIC = auto()44    GLOBAL = auto()45    LOOP = auto()46# For better readability in VM's output47class Segments(Enum):48    FUNCTIONS = "%%functions"49    GLOBAL_MEMORY = "%%global_memory"50    GLOBAL_RESOURCES = "%%global_resources"...

quadruple.py

Source:quadruple.py

1from dataclasses import dataclass2from enum import Enum3class Operator(Enum):4    """5    Operadores disponibles para la clase Cuadruple.6    """7    PLUS = '+'8    MINUS = '-'9    TIMES = '*'10    DIVIDE = '/'11    ASSIGN = '='12    AND = '&&'13    OR = '||'14    LESSTHAN = '<'15    GREATERTHAN = '>'16    LESSTHANOREQ = '<='17    GREATERTHANOREQ = '>='18    EQUAL = '=='19    NOTEQUAL = '!='20    READ = 'read'21    WRITE = 'write'22    GOTO = 'goto'23    GOTOF = 'gotof'24    GOTOT = 'gotot'25    GOSUB = 'gosub'26    PARAMETER = 'parameter'27    ENDFUN = 'endfun'28    ERA = 'era'29    VERIFY = 'verify'30    ASSIGNPTR = 'ASSIGNPTR'31@dataclass32class Quadruple:33    operator: Operator34    left_operand: any35    right_operand: any...

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