def p_for(p):
'''for : FOR IDENTIFIER EQ expr COMMA expr block
| FOR vdef EQ expr COMMA expr block
'''
p[0] = Node('FOR')
p[0].iter = p[2]
p[0].start = p[4]
p[0].step = 1
p[0].stop = p[6]
p[0].body = p[7].body
def p_range3(p):
"""range3 : expr COLON expr COLON expr"""
p[0] = Node("Range")
p[0].start = p[1]
p[0].step = p[3]
p[0].stop = p[5]
def p_colonlist(p):
'''list : LBRACKET expr RCOLON expr RCOLON expr RBRACKET'''
p[0]=Node('RangeList')
p[0].start = p[2]
p[0].step = p[4]
p[0].stop = p[6]
def p_rangelist(p):
'''list : LBRACKET expr RCOLON expr RBRACKET'''
p[0]=Node('Range')
p[0].start = p[2]
p[0].step = 1
p[0].stop = p[4]