From 9b390d4388c669e0513ca27ace5eefcc2f123847 Mon Sep 17 00:00:00 2001
From: RossTheRoss <msattr@gmail.com>
Date: Sat, 19 Oct 2019 19:01:18 -0500
Subject: Start project (halp)
---
csci1913/Python/project1_strap012.py | 76 ++++++++++++++++++++++++++++++++++++
1 file changed, 76 insertions(+)
create mode 100644 csci1913/Python/project1_strap012.py
(limited to 'csci1913')
diff --git a/csci1913/Python/project1_strap012.py b/csci1913/Python/project1_strap012.py
new file mode 100644
index 0000000..af39315
--- /dev/null
+++ b/csci1913/Python/project1_strap012.py
@@ -0,0 +1,76 @@
+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 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
+
+def filter(D, E):
+ if len(D) is 0:
+ return False
+ elif D[1] is E:
+ return True
+ else:
+ return filter(D[1:],E)
+
+class Grammar:
+ def __init__(self, seed):
+ self.r = Random(seed)
+ self.dictionary = {}
+ def rule(self, left, right):
+ if left in self.dictionary:
+ self.dictionary[left]+=(Rule(left,right),)
+ else:
+ self.dictionary[left]=(Rule(left, right),)
+ def generate(self):
+ if 'Start' in self.dictionary:
+ self.generating(self.dictionary['Start'])
+ else:
+ raise RuntimeError
+ def generating(self,strings):
+ result=''
+ for n in range (0, len(strings)):
+ if strings[n] in self.dictionary:
+ result += select(strings[n])
+ else:
+ result += strings[n]
+ result += " "
+ return result
+ def select(self, left):
+ rules=self.dictionary[left]
+ index=self.r.choose(len(left))
+
+
+
+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
--
cgit v1.2.3