create class Command, module SmallTalkt

add test.py

Command.py

@@ -0,0 +1,55 @@
+#   Abstract class Command
+#   Command                 - parent of all command classes
+#   command                 - object (class instance)
+#   Command.list            - list of all commands
+#   Command.find()          - recognize command from a string, return command object
+#   this                    - object (class instance) pointer
+#   abstract this.start()   - required method for all commands
+#   abstract this.confirm() - Return True/False (User responce)
+#   this.keywords           - dictionary of arrays keywords
+#       like {
+#           (int)weight  : ['word1', 'word2', 'word3'],
+#           (int)weight1 : ['word3', 'word4'],
+#           (int)weight2 : ['word5', 'word6', 'word7', 'word8', 'word9'],
+#       }
+#
+
+
+
+from abc import ABC, abstractmethod         #   for abstract class and methods
+
+class Command(ABC):
+    list = []                               #   list of all commands
+    def __init__(this, name, keywords):     #   initialisation of new command
+        this.name = name
+        this.keywords = keywords
+        Command.list.append(this)
+
+    def _get_kw(this, string):
+        for weight, array in this.keywords.items():
+            index = 0
+            for word in array:
+                if string == word:
+                    return (weight, index)
+                index += 1
+        return None
+
+    def remove_kw(this, string):
+        position = this._get_kw(string)
+        if(position):
+            del this.keywords[ position[0] ][ position[1] ]
+    def add_kw(this, weight, string):
+        if( this.keywords[weight] ):    this.keywords[weight].append(string)
+        else:                           this.keywords[weight] = [string]
+
+    #   static
+    @staticmethod
+    def find(string):
+        print('Find: '+string)
+    #   abstract
+    @abstractmethod
+    def start(this, string):                #   main method
+        pass
+    @abstractmethod
+    def confirm(this):                      #   optional method
+        pass