.NET/Java PDF, Tiff, Barcode SDK Library

One of your first concerns is where the bot will get its data. The bot s data includes information about word substitutions to perform during preprocessing, as well as myriad keywords and phrases that the bot can use in its responses.

You ll keep the bot s data in a hash, somewhat like this:

You can choose from a range of predesigned custom layouts at www.beyondbulletpoints. com, or you can have a graphic designer create layouts for you, or you can design layouts yourself manually by following a few basic steps, as described next.

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By now, you re getting a feeling for what classes are or you may be getting impatient for me to tell you how to make the darn things. Before jumping into the technicalities, let s have a look at what a class is, and how it is different from (or similar to) a type.

bot_data = { :presubs => [ ["dont", "don't"], ["youre", "you're"], ["love", "like"] ], :responses => { :default => [ "I don't understand.", "What ", "Huh " :greeting :farewell 'hello' => => => ], ["Hi. I'm [name]. Want to chat "], ["Good bye!"], [ "How's it going ", "How do you do " ], [ "Why do you like * ", "Wow! I like * too!" ]

The main hash has two parent elements, :presubs and :responses. The :presubs element references an array of arrays that contain substitutions to be made to the user s input before the bot forms a response. In this instance, the bot will expand some contractions, and also change any reference of love to like. The reason for this becomes clear when you look at :responses.

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Note This data structure is deliberately lightly populated to save space for discussion of the practicalities. By the end of this chapter you ll have a more complete set of data to use with your bot. This style of data structure was also covered in 3.

:responses references another hash: one that has elements with the names :default, :greeting, :farewell, 'hello', and 'i like *'. This hash contains all the different phrases

Whether or not you think about it consciously, you probably accept fundamental assumptions about communication that literally shape your thinking in ways large and small. If you commonly talk about communication in terms of a sender who transmits a message to a receiver, you might assume that you can send information through an unobstructed channel, like a pipeline, and the audience will get it, fully intact, at the other end of the pipeline, as shown in Figure 2-3.

I ve been throwing around the word class a lot, using it more or less synonymously with words such as kind or type. In many ways that s exactly what a class is a kind of object. All objects belong to one class and are said to be instances of that class. So, for example, if you look outside your window and see a bird, that bird is an instance of the class birds. This is a very general (abstract) class that has several subclasses: your bird might belong to the subclass larches. You can think of the class birds as the set of all birds, while the class larches is just a subset of that. When the objects belonging to one class form a subset of the objects belonging to another class, the first is called a subclass of the second. Thus, larches is a subclass of birds. Conversely, birds is a superclass of larches.