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termNodes.py
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termNodes.py
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import random
import solution
class persSet:
def __init__(self,parent):
"""
This constructor creates the node and sets it's parent
"""
self.down = []
self.parent = parent
self.name = ""
self.height = 0
self.depth = 0
if parent:
self.depth = self.parent.depth+1
self.take = []
self.give = [2]
self.settings = None
if parent:
self.settings = self.parent.settings
def evaluate(self,sets):
"""
This function evaluates the node and returns the resulting set\
"""
if self.name not in sets['pers']:
sets['pers'][self.name] = []
return sets['pers'][self.name]
def update(self,depth,sets,settings):
"""
This function updates the heights and depths and ensures
that the settings pointer is pointing to the right settings
object
"""
self.depth = depth
self.height = 0
if not sets['pers'].keys():
sets['pers']['A'] = []
opts = sets['pers'].keys()
self.name = random.choice(opts)
self.settings = settings
return self.height
def randomize(self,sets,settings):
"""
This function randomizes the parameters of the node if there are any
"""
if not sets['pers'].keys():
sets['pers']['A'] = []
opts = sets['pers'].keys()
self.name = random.choice(opts)
return
def fillTerms(self,sets,settings):
"""
After the bbsa places all of the non-terminal nodes, this funciton is called
to place the terminal nodes at the bottom of the parse tree
"""
return
def toString(self):
"""
This function is used to create a string representaion of the bbsa
"""
string = "["+self.name+"]"
return string
def toDict(self):
"""
This function is used to create a dictionary representaion of the bbsa
"""
return"["+self.name+"]"
def makeProg(self,numTab,var):
"""
This function generates the code for this node for the external verification
"""
tab = " "
indent = ""
for i in xrange(numTab):
indent+=tab
prog= "x"+var+ "= "+self.name+"\n"+indent
return prog
def count(self):
"""
This function calculates the number of nodes below it and including itself
"""
return 1
class lastSet:
def __init__(self,parent):
"""
This constructor creates the node and sets it's parent
"""
self.down = []
self.parent = parent
self.height = 0
self.depth = 0
if parent:
self.depth = self.parent.depth+1
self.take = []
self.give = [2]
self.settings = None
if parent:
self.settings = self.parent.settings
def evaluate(self,sets):
"""
This function evaluates the node and returns the resulting set\
"""
return sets['last']
def update(self,depth,sets,settings):
"""
This function updates the heights and depths and ensures
that the settings pointer is pointing to the right settings
object
"""
self.depth = depth
self.height = 0
self.settings = settings
return self.height
def randomize(self,sets,settings):
"""
This function randomizes the parameters of the node if there are any
"""
return
def fillTerms(self,sets,settings):
"""
After the bbsa places all of the non-terminal nodes, this funciton is called
to place the terminal nodes at the bottom of the parse tree
"""
return
def toString(self):
"""
This function is used to create a string representaion of the bbsa
"""
return "[Last]"
def toDict(self):
"""
This function is used to create a dictionary representaion of the bbsa
"""
return"[Last]"
def makeProg(self,numTab,var):
"""
This function generates the code for this node for the external verification
"""
tab = " "
indent = ""
for i in xrange(numTab):
indent+=tab
prog= "x"+var+ "= last\n"+indent
return prog
def count(self):
"""
This function calculates the number of nodes below it and including itself
"""
return 1
class emptySet:
def __init__(self,parent):
"""
This constructor creates the node and sets it's parent
"""
self.down = []
self.parent = parent
self.height = 0
self.depth = 0
if parent:
self.depth = self.parent.depth+1
self.take = []
self.give = [0]
self.settings = None
if parent:
self.settings = self.parent.settings
def evaluate(self,sets):
"""
This function evaluates the node and returns the resulting set\
"""
return []
def update(self,depth,sets,settings):
"""
This function updates the heights and depths and ensures
that the settings pointer is pointing to the right settings
object
"""
self.depth = depth
self.height = 0
self.settings = settings
return self.height
def randomize(self,sets,settings):
"""
This function randomizes the parameters of the node if there are any
"""
return
def fillTerms(self,sets,settings):
"""
After the bbsa places all of the non-terminal nodes, this funciton is called
to place the terminal nodes at the bottom of the parse tree
"""
return
def toString(self):
"""
This function is used to create a string representaion of the bbsa
"""
return "[ ]"
def toDict(self):
"""
This function is used to create a dictionary representaion of the bbsa
"""
return"[ ]"
def makeProg(self,numTab,var):
"""
This function generates the code for this node for the external verification
"""
tab = " "
indent = ""
for i in xrange(numTab):
indent+=tab
prog= "x"+var+ "= []\n"+indent
return prog
def count(self):
"""
This function calculates the number of nodes below it and including itself
"""
return 1
class genRandom:
def __init__(self,parent):
"""
This constructor creates the node and sets it's parent
"""
self.down = []
self.parent = parent
self.height = 0
self.depth = 0
if parent:
self.depth = self.parent.depth+1
self.settings = None
self.take = []
self.give = [1]
def evaluate(self,sets):
"""
This function evaluates the node and returns the resulting set\
"""
return [solution.solution(self.settings)]
def update(self,depth,sets,settings):
"""
This function updates the heights and depths and ensures
that the settings pointer is pointing to the right settings
object
"""
self.depth = depth
self.height = 0
return self.height
def randomize(self,sets,settings):
"""
This function randomizes the parameters of the node if there are any
"""
self.settings = settings
return
def fillTerms(self,sets,settings):
"""
After the bbsa places all of the non-terminal nodes, this funciton is called
to place the terminal nodes at the bottom of the parse tree
"""
self.settings = settings
return
def toString(self):
"""
This function is used to create a string representaion of the bbsa
"""
return "<generator>"
def toDict(self):
"""
This function is used to create a dictionary representaion of the bbsa
"""
return"<generator>"
def makeProg(self,numTab,var):
"""
This function generates the code for this node for the external verification
"""
tab = " "
indent = ""
for i in xrange(numTab):
indent+=tab
prog= "x"+var+ "= [solution.solution()]\n"+indent
return prog
def count(self):
"""
This function calculates the number of nodes below it and including itself
"""
return 1
termNodes = [persSet,lastSet]