From 175721a63b426355274fa9e8063f762020ab8362 Mon Sep 17 00:00:00 2001 From: RossTheRoss Date: Thu, 30 Jan 2020 16:55:04 -0600 Subject: R E A R R A N G E --- OLD/csci1913/Python/project1_strap012.py | 134 +++++++++++++++++++++++++++++++ 1 file changed, 134 insertions(+) create mode 100644 OLD/csci1913/Python/project1_strap012.py (limited to 'OLD/csci1913/Python/project1_strap012.py') diff --git a/OLD/csci1913/Python/project1_strap012.py b/OLD/csci1913/Python/project1_strap012.py new file mode 100644 index 0000000..c825359 --- /dev/null +++ b/OLD/csci1913/Python/project1_strap012.py @@ -0,0 +1,134 @@ +class Random: + def __init__(self, seed): + self.sevenFive = 16807 + self.twoThirtyone = 2147483647 + self.newNum = seed + + def next(self): + self.newNum = self.sevenFive*self.newNum % self.twoThirtyone + return self.newNum + + def choose(self, limit): + return self.next()%limit + + + +class Rule: + def __init__(self, left, right): + self.left = left + self.right = right + self.count = 1 + + def __repr__(self): + string = str(self.count) + string += " " + string += str(self.left) + string += " -> " + for n in range (0, len(self.right)): + string += self.right[n] + string += " " + return string + + + +class Grammar: + def __init__(self, seed): + self.r = Random(seed) + self.dictionary = {} + + def rule(self, left, right): + if left not in self.dictionary: + self.dictionary[left] = (Rule(left,right),) + else: + self.dictionary[left] += (Rule(left, right),) + + def generate(self): + if 'Start' in self.dictionary: + return self.generating(('Start',)) + else: + raise RuntimeError + + def select(self, left): + rules = self.dictionary[left] + total = 0 + c = 0 + #Some of the loops are probably not needed + for m in range (0, len(rules)): + total += rules[m].count + index = self.r.choose(total) + for c in range (0, len(rules)): + index -= rules[c].count + if index <= 0: + break + chosen = rules[c] + for n in range (0, len(rules)): + if rules[n] is not chosen: + rules[n].count += 1 + return chosen.right + + def generating(self,strings): + result='' + for n in range (0, len(strings)): + if strings[n] not in self.dictionary: + result += strings[n] + result += " " + else: + result += self.generating(self.select(strings[n])) + return result + + + + +G = Grammar(101) +G.rule('Noun', ('cat',)) # 01 +G.rule('Noun', ('boy',)) # 02 +G.rule('Noun', ('dog',)) # 03 +G.rule('Noun', ('girl',)) # 04 +G.rule('Verb', ('bit',)) # 05 +G.rule('Verb', ('chased',)) # 06 +G.rule('Verb', ('kissed',)) # 07 +G.rule('Phrase', ('the', 'Noun', 'Verb', 'the', 'Noun')) # 08 +G.rule('Story', ('Phrase',)) # 09 +G.rule('Story', ('Phrase', 'and', 'Story')) # 10 +G.rule('Story', ('Phrase', 'but', 'Story')) # 11 +G.rule('Start', ('Story', '.')) # 12 +for _ in range (0, 5): + print(G.generate()) + +# the cat bit the boy . +# the cat kissed the dog and the boy chased the boy . +# the cat chased the dog and the girl bit the boy but the girl chased the cat . +# the girl chased the dog . +# the boy kissed the girl and the cat kissed the girl . + +print() +print() + +# +# + +J = Grammar(1453) +J.rule('Noun', ('sentence',)) +J.rule('Noun', ('walrus',)) +J.rule('Noun', ('sky',)) +J.rule('Noun', ('diamond',)) +J.rule('Noun', ('Ottoman Empire',)) +J.rule('Verb', ('is',)) +J.rule('Verb', ('fanned',)) +J.rule('Verb', ('generated',)) +J.rule('Verb', ('hit',)) +J.rule('Phrase', ('the', 'Noun', 'Verb', 'the', 'Noun')) # 08 +J.rule('Phrase', ('Noun', 'Verb', 'the', 'Noun')) +J.rule('Story', ('Phrase',)) # 09 +J.rule('Story', ('Phrase', 'and', 'Story')) # 10 +J.rule('Story', ('Phrase', 'but', 'Story')) # 11 +J.rule('Start', ('Story', '.')) # 12 + +for _ in range(0, 5): + print(J.generate()) + +# the walrus is the sentence and the diamond generated the walrus . +# the walrus generated the walrus and the walrus generated the sentence but diamond hit the sentence . +# sentence fanned the Ottoman Empire . +# the sky hit the diamond and sky is the sentence but the sky fanned the diamond . +# the walrus generated the diamond and the diamond generated the Ottoman Empire but the sky generated the sentence . -- cgit v1.2.3