def factor(self):
self.dbg_msg( "factor" )
tok=self.peek()
if tok.kind == EzhilToken.LPAREN:
lparen_tok = self.dequeue()
val=self.expr()
if self.dequeue().kind!= EzhilToken.RPAREN:
raise SyntaxError("Missing Parens "+str(self.last_token()))
elif tok.kind == EzhilToken.NUMBER:
tok_num = self.dequeue()
[l, c] = tok_num.get_line_col()
val = Number( tok.val , l, c, self.debug )
elif tok.kind == EzhilToken.LOGICAL_NOT:
tok_not = self.dequeue()
[l, c] = tok_not.get_line_col()
val = UnaryExpr( self.expr(), tok_not , l, c, self.debug )
self.dbg_msg("completed parsing unary expression"+str(val))
elif tok.kind == EzhilToken.ID:
tok_id = self.dequeue()
[l, c] = tok_id.get_line_col()
val = Identifier( tok.val , l, c, self.debug )
ptok = self.peek()
self.dbg_msg("factor: "+str(ptok) + " / "+str(tok) )
if ( ptok.kind == EzhilToken.LPAREN ):
## function call
[l, c] = ptok.get_line_col()
vallist = self.valuelist()
val=ExprCall( val, vallist, l, c, self.debug )
elif ( ptok.kind == EzhilToken.LSQRBRACE ):
## indexing a array type variable or ID
val=None
raise ParseException("arrays not implemented"+str(ptok));
elif tok.kind == EzhilToken.STRING :
str_tok = self.dequeue()
[l,c] = str_tok.get_line_col()
val = String( tok.val , l, c, self.debug )
elif tok.kind in EzhilToken.ADDSUB:
unop = self.dequeue();
[l, c] = unop.get_line_col()
val=Expr(Number(0),unop,self.term(),l,c,self.debug);
elif tok.kind == EzhilToken.LSQRBRACE:
# creating a list/array expression
list_start = self.dequeue();
val = Array()
while( True ):
exprval = self.expr()
val.append( exprval )
if self.debug : print(self.peek().__class__,self.peek())
if ( self.peek().kind == EzhilToken.RSQRBRACE ):
break
else:
assert( self.peek().kind == EzhilToken.COMMA)
self.dequeue()
assert( self.peek().kind == EzhilToken.RSQRBRACE )
list_end = self.dequeue()
else:
raise ParseException("Expected Number, found something "+str(tok))
self.dbg_msg( "factor-returning: "+str(val) )
return val
def num(p):
value = 0
if (p[0].gettokentype() == 'SPECIAL'):
value = p[1].value / 10000
else:
value = p[0].value + p[2] / 10000
return Number(self.builder, self.module, value)
def printitem(p):
'''
p[0] = numero ou variavel
'''
if (p[0].gettokentype() == 'num'):
return Number(self.builder, self.module, int(p[0].value))
else:
return PrintItem(self.builder, self.module, p[0])
def parseSwitchStmt(self, exp):
## @ <ID/EXPR> SWITCH @( expr ) CASE {stmtlist} @( expr ) CASE {stmtlist} OTHERWISE {stmtlist} END
## implement as an if-elseif-else statement
self.dbg_msg("parsing SWITCH statement")
sw_tok = self.dequeue()
[l, c] = sw_tok.get_line_col()
self.inside_if = True
lhs = exp[0]
# enter this if-statement always
ifstmt = IfStmt(Number(1), None, None, l, c, self.debug)
self.if_stack.append(ifstmt)
self.dbg_msg("parsing SWITCH-body") #self.dbg_msg
ptok = self.peek()
equality_token = EzhilLexeme("=", EzhilToken.EQUALITY)
while (ptok.kind == EzhilToken.ATRATEOF
or ptok.kind == EzhilToken.OTHERWISE):
self.inside_if = True
[l, c] = ptok.get_line_col()
if (ptok.kind == EzhilToken.ATRATEOF):
# parse elseif branch
self.dbg_msg("parsing CASE")
self.match(EzhilToken.ATRATEOF)
exp = self.valuelist()
self.dbg_msg("parsing CASE EXPR")
self.match(EzhilToken.CASE)
next_stmt = self.stmtlist()
expr = Expr(lhs, equality_token, exp[0], l, c, self.debug)
self.dbg_msg("building an Expr " + str(expr))
if not ifstmt.body:
ifstmt.expr = expr
ifstmt.body = next_stmt
else:
case_stmt = IfStmt(expr, next_stmt, None, l, c, self.debug)
ifstmt.append_stmt(case_stmt)
elif (ptok.kind == EzhilToken.OTHERWISE):
#parse else branch
self.dbg_msg("parsing OTHERWISE: ")
self.match(EzhilToken.OTHERWISE)
self.dbg_msg("parsing OTHERWISE-Body")
self.inside_if = False
body = self.stmtlist()
else_stmt = ElseStmt(body, l, c, self.debug)
if not ifstmt.body:
ifstmt.body = else_stmt
else:
ifstmt.append_stmt(else_stmt)
break
else:
self.inside_if = False
raise ParseError(
"SWITCH-CASE-OTHERWISE statement syntax is messed up")
ptok = self.peek()
self.dbg_msg("parsing SWITCH-CASE next bits " + str(ptok))
self.match(EzhilToken.END)
self.inside_if = False
self.dbg_msg("parsing -SWITCH-CASE- complete")
return ifstmt
def factor(self):
if self.current_token.type == NUM:
factor = Number(self.current_token.value)
self.consume(NUM)
elif self.current_token.type == LPAREN:
self.consume(LPAREN)
factor = self.expr()
self.consume(RPAREN)
else:
self.error()
return factor
def parseExpression(parser):
expression = None
if parser.matchTokensort(STRING): #data string
expression = Text(parser.currentToken[1], lineo=parser.currentToken[2])
parser.next()
elif parser.matchTokensort(NUMBER): #number stuff
expression = Number(parser.currentToken[1],
lineo=parser.currentToken[2])
parser.next()
elif parser.matchLexeme("["):
expression = parseList(parser)
elif parser.matchLexeme("{"):
expression = parseRecord(parser)
elif parser.matchTokensort(NAME):
#Variable
expression = Name(parser.currentToken[1])
#Check for Variable DOT Field expression
fields = []
while parser.peek(lexeme=".") and parser.peek(x=2, tokensort=NAME):
parser.next(lexeme=".") #skip.
parser.next(expected="NAME", tokensort=NAME)
fields.append(parser.currentToken[1])
if fields:
expression = Field(expression,
fields,
lineo=parser.currentToken[2])
parser.next()
#Check for expression PLUS expression
if parser.matchLexeme("+") and expression:
left = expression
parser.next() # skip +
right = parseExpression(parser)
expression = Cat(left, right, lineo=parser.currentToken[2])
#indentedLog(expression)
if not expression:
raise SyntaxError(
parser.currentToken,
expected=
"Expression: symbol, string, number, list, record, name.field")
return expression
def factor(self):
self.dbg_msg("factor")
tok = self.peek()
if tok.kind == Token.LPAREN:
lparen_tok = self.dequeue()
val = self.expr()
if self.dequeue().kind != Token.RPAREN:
raise SyntaxError("Missing Parens")
elif tok.kind == Token.NUMBER:
tok_num = self.dequeue()
[l, c] = tok_num.get_line_col()
val = Number(tok.val, l, c, self.debug)
elif tok.kind == Token.ID:
tok_id = self.dequeue()
[l, c] = tok_id.get_line_col()
val = Identifier(tok.val, l, c, self.debug)
ptok = self.peek()
self.dbg_msg("factor: " + str(ptok) + " / " + str(tok))
if (ptok.kind == Token.LPAREN):
## function call
[l, c] = ptok.get_line_col()
vallist = self.valuelist()
val = ExprCall(val, vallist, l, c, self.debug)
elif (ptok.kind == Token.LSQRBRACE):
## array type
val = None
raise ParseException("arrays not implemented" + str(ptok))
elif tok.kind == Token.STRING:
str_tok = self.dequeue()
[l, c] = str_tok.get_line_col()
val = String(tok.val, l, c, self.debug)
else:
raise ParseException("Expected Number, found something " +
str(tok))
self.dbg_msg("factor-returning: " + str(val))
return val
def PRINTF(*args):
str_op = Interpreter.SPRINTF_worker(*args)
print(str_op)
return Number(len(str_op))
def INPUT(args):
op = (raw_input(args))
if (isinstance(op, int) or isinstance(op, float)):
return Number(0.0 + op)
return String(op)
def factor(self):
self.dbg_msg( "factor" )
tok=self.peek()
if tok.kind == EzhilToken.LPAREN:
lparen_tok = self.dequeue()
val=self.expr()
if self.dequeue().kind!= EzhilToken.RPAREN:
raise SyntaxError("Missing Parens "+unicode(self.last_token()))
elif tok.kind == EzhilToken.NUMBER:
tok_num = self.dequeue()
[l, c] = tok_num.get_line_col()
val = Number( tok.val , l, c, self.debug )
elif tok.kind == EzhilToken.LOGICAL_NOT:
tok_not = self.dequeue()
[l, c] = tok_not.get_line_col()
val = UnaryExpr( self.expr(), tok_not , l, c, self.debug )
self.dbg_msg("completed parsing unary expression"+unicode(val))
elif tok.kind == EzhilToken.ID:
tok_id = self.dequeue()
[l, c] = tok_id.get_line_col()
val = Identifier( tok.val , l, c, self.debug )
ptok = self.peek()
self.dbg_msg(u"factor: "+unicode(ptok) + u" / "+ unicode(tok) )
if ( ptok.kind == EzhilToken.LPAREN ):
## function call
[l, c] = ptok.get_line_col()
vallist = self.valuelist()
val=ExprCall( val, vallist, l, c, self.debug )
elif ( ptok.kind == EzhilToken.LSQRBRACE ):
## indexing a array type variable or ID
[l,c] = ptok.get_line_col()
## replace with a call to __getitem__
exp = self.factor();
if ( hasattr(exp,'__getitem__') ):
VL2 = ValueList([val,exp[0]],l,c,self.debug)
else:
# when exp is a expression
VL2 = ValueList([val,exp],l,c,self.debug)
val = ExprCall( Identifier("__getitem__",l,c), VL2,l,c,self.debug)
for itr in range(1,len(exp)):
VL2 = ValueList([val,exp[itr]],l,c,self.debug)
val = ExprCall( Identifier("__getitem__",l,c), VL2,l,c,self.debug)
#raise ParseException("array indexing implemented"+unicode(ptok));
elif ( ptok.kind == EzhilToken.LCURLBRACE ):
val=None
raise ParseException("dictionary indexing implemented"+unicode(ptok));
elif tok.kind == EzhilToken.STRING :
str_tok = self.dequeue()
[l,c] = str_tok.get_line_col()
val = String( tok.val , l, c, self.debug )
elif tok.kind in EzhilToken.ADDSUB:
unop = self.dequeue();
[l, c] = unop.get_line_col()
val=Expr(Number(0),unop,self.term(),l,c,self.debug);
elif tok.kind == EzhilToken.LCURLBRACE:
# creating a list/dictionary expression
dict_start = self.dequeue();
val = Dict()
while( True ):
if ( self.peek().kind == EzhilToken.RCURLBRACE ):
break;
exprkey = self.expr()
tok_colon = self.match(EzhilToken.COLON)
exprval = self.expr()
val.update( {exprkey : exprval} )
if self.debug : print(self.peek().__class__,self.peek())
if ( self.peek().kind == EzhilToken.RCURLBRACE ):
break
else:
assert( self.peek().kind == EzhilToken.COMMA)
self.dequeue()
assert( self.peek().kind == EzhilToken.RCURLBRACE )
list_end = self.dequeue()
elif tok.kind == EzhilToken.LSQRBRACE:
# creating a list/array expression
list_start = self.dequeue();
val = Array()
while( True ):
if ( self.peek().kind == EzhilToken.RSQRBRACE ):
break;
exprval = self.expr()
val.append( exprval )
if self.debug : print(self.peek().__class__,self.peek())
if ( self.peek().kind == EzhilToken.RSQRBRACE ):
break
else:
assert( self.peek().kind == EzhilToken.COMMA)
self.dequeue()
assert( self.peek().kind == EzhilToken.RSQRBRACE )
list_end = self.dequeue()
else:
raise ParseException("Expected Number, found something "+unicode(tok))
self.dbg_msg( u"factor-returning: "+unicode(val) )
return val
def factor(self):
self.dbg_msg("factor")
tok = self.peek()
if tok.kind == EzhilToken.LPAREN:
lparen_tok = self.dequeue()
val = self.expr()
if self.dequeue().kind != EzhilToken.RPAREN:
raise SyntaxError("Missing Parens " + str(self.last_token()))
elif tok.kind == EzhilToken.NUMBER:
tok_num = self.dequeue()
[l, c] = tok_num.get_line_col()
val = Number(tok.val, l, c, self.debug)
elif tok.kind == EzhilToken.LOGICAL_NOT:
tok_not = self.dequeue()
[l, c] = tok_not.get_line_col()
val = UnaryExpr(self.expr(), tok_not, l, c, self.debug)
self.dbg_msg("completed parsing unary expression" + str(val))
elif tok.kind == EzhilToken.ID:
tok_id = self.dequeue()
[l, c] = tok_id.get_line_col()
val = Identifier(tok.val, l, c, self.debug)
ptok = self.peek()
self.dbg_msg("factor: " + str(ptok) + " / " + str(tok))
if (ptok.kind == EzhilToken.LPAREN):
## function call
[l, c] = ptok.get_line_col()
vallist = self.valuelist()
val = ExprCall(val, vallist, l, c, self.debug)
elif (ptok.kind == EzhilToken.LSQRBRACE):
## indexing a array type variable or ID
[l, c] = ptok.get_line_col()
## replace with a call to __getitem__
exp = self.factor()
if (hasattr(exp, '__getitem__')):
VL2 = ValueList([val, exp[0]], l, c, self.debug)
else:
# when exp is a expression
VL2 = ValueList([val, exp], l, c, self.debug)
val = ExprCall(Identifier("__getitem__", l, c), VL2, l, c,
self.debug)
for itr in range(1, len(exp)):
VL2 = ValueList([val, exp[itr]], l, c, self.debug)
val = ExprCall(Identifier("__getitem__", l, c), VL2, l, c,
self.debug)
#raise ParseException("array indexing implemented"+str(ptok));
elif (ptok.kind == EzhilToken.LCURLBRACE):
val = None
raise ParseException("dictionary indexing implemented" +
str(ptok))
elif tok.kind == EzhilToken.STRING:
str_tok = self.dequeue()
[l, c] = str_tok.get_line_col()
val = String(tok.val, l, c, self.debug)
elif tok.kind in EzhilToken.ADDSUB:
unop = self.dequeue()
[l, c] = unop.get_line_col()
val = Expr(Number(0), unop, self.term(), l, c, self.debug)
elif tok.kind == EzhilToken.LCURLBRACE:
# creating a list/dictionary expression
dict_start = self.dequeue()
val = Dict()
while (True):
if (self.peek().kind == EzhilToken.RCURLBRACE):
break
exprkey = self.expr()
tok_colon = self.match(EzhilToken.COLON)
exprval = self.expr()
val.update({exprkey: exprval})
if self.debug: print(self.peek().__class__, self.peek())
if (self.peek().kind == EzhilToken.RCURLBRACE):
break
else:
assert (self.peek().kind == EzhilToken.COMMA)
self.dequeue()
assert (self.peek().kind == EzhilToken.RCURLBRACE)
list_end = self.dequeue()
elif tok.kind == EzhilToken.LSQRBRACE:
# creating a list/array expression
list_start = self.dequeue()
val = Array()
while (True):
if (self.peek().kind == EzhilToken.RSQRBRACE):
break
exprval = self.expr()
val.append(exprval)
if self.debug: print(self.peek().__class__, self.peek())
if (self.peek().kind == EzhilToken.RSQRBRACE):
break
else:
assert (self.peek().kind == EzhilToken.COMMA)
self.dequeue()
assert (self.peek().kind == EzhilToken.RSQRBRACE)
list_end = self.dequeue()
else:
raise ParseException("Expected Number, found something " +
str(tok))
self.dbg_msg("factor-returning: " + str(val))
return val
def factor_number(p):
return Number(self.builder, self.module, p[0].getstr())
def snum(p):
value = p[1].value
if (p[0].getstr() == '-'):
value = value * (-1)
return Number(self.builder, self.module, value)
def factor(self):
self.dbg_msg("factor")
tok = self.peek()
if tok.kind == EzhilToken.LPAREN:
lparen_tok = self.dequeue()
val = self.expr()
if self.dequeue().kind != EzhilToken.RPAREN:
raise SyntaxError("Missing Parens " + str(self.last_token()))
elif tok.kind == EzhilToken.NUMBER:
tok_num = self.dequeue()
[l, c] = tok_num.get_line_col()
val = Number(tok.val, l, c, self.debug)
elif tok.kind == EzhilToken.LOGICAL_NOT:
tok_not = self.dequeue()
[l, c] = tok_not.get_line_col()
val = UnaryExpr(self.expr(), tok_not, l, c, self.debug)
self.dbg_msg("completed parsing unary expression" + str(val))
elif tok.kind == EzhilToken.ID:
tok_id = self.dequeue()
[l, c] = tok_id.get_line_col()
val = Identifier(tok.val, l, c, self.debug)
ptok = self.peek()
self.dbg_msg("factor: " + str(ptok) + " / " + str(tok))
if (ptok.kind == EzhilToken.LPAREN):
## function call
[l, c] = ptok.get_line_col()
vallist = self.valuelist()
val = ExprCall(val, vallist, l, c, self.debug)
elif (ptok.kind == EzhilToken.LSQRBRACE):
## indexing a array type variable or ID
val = None
raise ParseException("arrays not implemented" + str(ptok))
elif tok.kind == EzhilToken.STRING:
str_tok = self.dequeue()
[l, c] = str_tok.get_line_col()
val = String(tok.val, l, c, self.debug)
elif tok.kind in EzhilToken.ADDSUB:
unop = self.dequeue()
[l, c] = unop.get_line_col()
val = Expr(Number(0), unop, self.term(), l, c, self.debug)
elif tok.kind == EzhilToken.LSQRBRACE:
# creating a list/array expression
list_start = self.dequeue()
val = Array()
while (True):
exprval = self.expr()
val.append(exprval)
if self.debug: print(self.peek().__class__, self.peek())
if (self.peek().kind == EzhilToken.RSQRBRACE):
break
else:
assert (self.peek().kind == EzhilToken.COMMA)
self.dequeue()
assert (self.peek().kind == EzhilToken.RSQRBRACE)
list_end = self.dequeue()
else:
raise ParseException("Expected Number, found something " +
str(tok))
self.dbg_msg("factor-returning: " + str(val))
return val
def stmt(self, pass_in_ATexpr=None):
""" try an assign, print, return, if or eval statement """
self.dbg_msg(" STMT ")
ptok = self.peek()
self.dbg_msg("stmt: peeking at " + str(ptok))
if (ptok.kind == EzhilToken.RETURN):
## return <expression>
self.dbg_msg('enter->return: <expression>')
ret_tok = self.dequeue()
[l, c] = ret_tok.get_line_col()
rstmt = ReturnStmt(self.expr(), l, c, self.debug)
self.dbg_msg("return statement parsed")
return rstmt
elif (ptok.kind == EzhilToken.PRINT):
self.currently_parsing.append(ptok)
## print <expression>
print_tok = self.dequeue()
[l, c] = print_tok.get_line_col()
exprlist_val = self.exprlist()
self.currently_parsing.pop()
return PrintStmt(exprlist_val, l, c, self.debug)
elif (ptok.kind == EzhilToken.ATRATEOF or pass_in_ATexpr):
## @ <expression> {if | while | elseif}
if not pass_in_ATexpr:
at_tok = self.match(EzhilToken.ATRATEOF)
self.currently_parsing.append(at_tok)
exp = self.valuelist()
self.currently_parsing.pop()
else:
exp = pass_in_ATexpr
if (self.debug): print("return from valuelist ", str(exp))
ptok = self.peek()
if (ptok.kind == EzhilToken.IF):
return self.parseIfStmt(exp)
elif (ptok.kind == EzhilToken.WHILE):
## @ ( expr ) while { body } end
self.loop_stack.append(True)
self.dbg_msg("while-statement")
while_tok = self.dequeue()
self.currently_parsing.append(while_tok)
[l, c] = while_tok.get_line_col()
wexpr = exp[0]
body = self.stmtlist()
self.match(EzhilToken.END)
whilestmt = WhileStmt(wexpr, body, l, c, self.debug)
self.loop_stack.pop()
self.currently_parsing.pop()
return whilestmt
elif (ptok.kind == EzhilToken.SWITCH):
return self.parseSwitchStmt(exp)
elif (ptok.kind == EzhilToken.FOREACH):
foreach_tok = self.dequeue()
self.currently_parsing.append(foreach_tok)
[l, c] = foreach_tok.get_line_col()
if (self.debug): print("parsing FOREACH stmt")
self.loop_stack.append(True)
self.dbg_msg("foreach-statement")
# convert to a for statement - building Ezhil AST - transformations
if not isinstance(exp[1], Identifier):
raise ParseError(" FOR-EACH statement " + str(foreach_tok))
foreach_iter = exp[1]
iter = Identifier("__" + foreach_iter.id, l=0, c=-1)
eq_token = EzhilLexeme("=", EzhilToken.EQUALS)
plus_token = EzhilLexeme("+", EzhilToken.PLUS)
lt_token = EzhilLexeme("<", EzhilToken.LT)
if (self.debug): print("build init assign stmt")
init = AssignStmt(iter, eq_token, Number(0), l, c, self.debug)
if (self.debug): print("build cond expr")
VL1 = ValueList([exp[0]], l, c, self.debug)
cond = Expr(
iter, lt_token,
ExprCall(Identifier("len", l, c), VL1, l, c, self.debug),
l, c, self.debug)
if (self.debug): print("build plus1 stmt")
plus1_iter = Expr(iter, plus_token, Number(1), l, c,
self.debug)
if (self.debug): print("build equals stmt")
update = AssignStmt(iter, eq_token, plus1_iter, l, c,
self.debug)
body = self.stmtlist() #parse body
# and insert artifical update variable in body
VL2 = ValueList([exp[0], iter], l, c, self.debug)
extract_foreach_iter_from_list = ExprCall(
Identifier("__getitem__", l, c), VL2, l, c, self.debug)
foreach_iter_Assign = AssignStmt(
foreach_iter, eq_token, extract_foreach_iter_from_list, l,
c, self.debug)
body.List.insert(0, foreach_iter_Assign)
# complete FOREACH stmt
self.match(EzhilToken.END)
self.currently_parsing.pop()
foreach_stmt = ForStmt(init, cond, update, body, l, c,
self.debug)
self.loop_stack.pop()
if (self.debug):
print("completed parsing FOR-EACH loop", str(foreach_stmt))
return foreach_stmt
elif (ptok.kind == EzhilToken.FOR):
## Fixme : empty for loops not allowed.
""" For ( exp1 , exp2 , exp3 ) stmtlist end"""
if (self.debug): print("parsing FOR stmt")
self.loop_stack.append(True)
self.dbg_msg("for-statement")
for_tok = self.peek()
self.currently_parsing.append(for_tok)
if (self.debug): print("matching for STMT", str(self.peek()))
self.match(EzhilToken.FOR)
if (self.debug): print("matched for STMT", str(self.peek()))
[l, c] = for_tok.get_line_col()
init, cond, update = exp[0], exp[1], exp[2]
if (self.debug):
print("extract 3 parts", str(init), str(cond), str(update))
body = self.stmtlist()
self.match(EzhilToken.END)
self.currently_parsing.pop()
if (self.debug): print("body of loop", str(body))
forstmt = ForStmt(init, cond, update, body, l, c, self.debug)
self.loop_stack.pop()
if (self.debug):
print("completed parsing FOR loop", str(forstmt))
return forstmt
elif (ptok.kind == EzhilToken.DO):
if (self.debug): print("parsing DO-WHILE statement")
self.loop_stack.append(True)
do_tok = self.dequeue()
self.currently_parsing.append(do_tok)
[l, c] = do_tok.get_line_col()
body = self.stmtlist()
if (self.debug): print("parsed body")
self.match(EzhilToken.DOWHILE)
self.match(EzhilToken.ATRATEOF)
exp = self.valuelist()
if (self.debug): print("parsed EXP", exp[0])
doWhileStmt = DoWhileStmt(exp[0], body, l, c, self.debug)
self.loop_stack.pop()
self.currently_parsing.pop()
return doWhileStmt
elif (ptok.kind == EzhilToken.BREAK):
## break, must be in loop-environment
self.dbg_msg("break-statement")
break_tok = self.dequeue()
[l, c] = break_tok.get_line_col()
self.check_loop_stack()
##raises a parse error
brkstmt = BreakStmt(l, c, self.debug)
return brkstmt
elif (ptok.kind == EzhilToken.CONTINUE):
## continue, must be in loop-environment
self.dbg_msg("continue-statement")
cont_tok = self.dequeue()
[l, c] = cont_tok.get_line_col()
self.check_loop_stack()
##raises a parse error
cntstmt = ContinueStmt(l, c, self.debug)
return cntstmt
else:
## lval := rval
ptok = self.peek()
self.currently_parsing.append(ptok)
[l, c] = ptok.get_line_col()
lhs = self.expr()
self.dbg_msg("parsing expr: " + str(lhs))
ptok = self.peek()
if (ptok.kind in EzhilToken.ASSIGNOP):
assign_tok = self.dequeue()
rhs = self.expr()
[l, c] = assign_tok.get_line_col()
self.currently_parsing.pop()
return AssignStmt(lhs, assign_tok, rhs, l, c, self.debug)
self.currently_parsing.pop()
return EvalStmt(lhs, l, c, self.debug)
raise ParseException("parsing Statement, unkown operators" + str(ptok))
def number(p):
return Number(self.builder, self.module, p[0].value)
def ezhil_tamil_length(arg):
return Number(len(tamil.utf8.get_letters(arg)))
def expression_number(p):
# p is a list of the pieces matched by the right hand side of the
# rule
return Number(int(p[0].getstr()))
def p_atom(tokens):
token = tokens[0]
if (token.gettokentype() == 'NUMBER'):
return Number(int(token.getstr()))
elif (token.gettokentype() == 'NAME'):
return Ident(token.getstr())
def handleNumber(p):
return Number(p[0].value)
def number(p):
return Number(p[0].value)
def int_function(p):
result = 0
for i in range(len(p)):
result = result * 10 + p[i]
return Number(self.builder, self.module, result)