From bfafa6fa3d698a5242c56a91ea499d6b7b9a39ad Mon Sep 17 00:00:00 2001
From: Adam <adelionek@gmail.com>
Date: Sun, 20 Dec 2020 11:04:30 +0100
Subject: [PATCH] E08 done2

---
 TaskE08/Makefile |  0
 TaskE08/run      |  2 ++
 TaskE08/run.py   | 71 ++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 73 insertions(+)
 create mode 100644 TaskE08/Makefile
 create mode 100644 TaskE08/run
 create mode 100644 TaskE08/run.py

diff --git a/TaskE08/Makefile b/TaskE08/Makefile
new file mode 100644
index 0000000..e69de29
diff --git a/TaskE08/run b/TaskE08/run
new file mode 100644
index 0000000..7174f9b
--- /dev/null
+++ b/TaskE08/run
@@ -0,0 +1,2 @@
+#!/bin/bash
+python TaskE08/run.py "$@"
\ No newline at end of file
diff --git a/TaskE08/run.py b/TaskE08/run.py
new file mode 100644
index 0000000..584ab73
--- /dev/null
+++ b/TaskE08/run.py
@@ -0,0 +1,71 @@
+import sys
+import os
+
+
+# filename = sys.argv[1]
+# path = os.path.join(os.getcwd(), filename)
+# path = os.path.join(os.getcwd(), 'test1.arg')
+# file = open(path, 'r').readlines()
+
+
+class FSA():
+    def __init__(self):
+        self.initial_state = '0'
+        self.current_letter = None
+        self.current_state = self.initial_state
+        self.acceptance_state = '0'
+        self.alphabet = set()
+        self.transition_function = [{'in': '0', 'letter': '0', 'out': '1'},
+                                    {'in': '1', 'letter': '1', 'out': '1'},
+                                    {'in': '1', 'letter': '0', 'out': '0'},
+                                    {'in': '0', 'letter': '1', 'out': '0'}]
+
+    def add_letter_to_alphabet(self, letter):
+        self.alphabet.add(letter)
+
+    def add_transition_to_transition_function(self, input_state, output_state, letter):
+        obj = {'in': input_state, 'letter': letter, 'out': output_state}
+        self.transition_function.append(obj)
+        # add letter to alphabet
+
+    def specify_end_state(self, end_state):
+        self.end_state = end_state
+
+    def check_text(self, text):
+        if text == '':
+            return 'YES'
+
+        output_text = ""
+
+        for letter in text:
+            if letter not in self.alphabet:
+                return 'NO'
+            
+            found_function = None
+
+            for func in self.transition_function:
+                if func['in'] == self.current_state and func['letter'] == letter:
+                    found_function = func
+
+            if not found_function:
+                self.current_state = '0'
+            else:
+                self.current_state = found_function['out']
+                output_text += found_function['letter']
+
+            # print('Input text:{} output text:{} current state:{}'.format(text, output_text, self.current_state))
+            if output_text == text and self.current_state == self.acceptance_state:
+                return 'YES'
+
+        return 'NO'
+
+
+FSA = FSA()
+FSA.alphabet.add('0')
+FSA.alphabet.add('1')
+# lines = ['10','', '0101']
+
+for line in sys.stdin:
+    line = line.rstrip('\n')
+    FSA.current_state = FSA.initial_state
+    print(FSA.check_text(line))