TOM is name of two different programming languages.

=Objective C successor=

TOM is an object oriented programming language that can be considered as the ultimate incarnation of Objective C. The main purpose of TOM is to allow for unplanned reuse of code via a well-developed extension mechanism. This concept was introduced seemingly by accident in Objective C and later proved to be of wide use, and was applied with a vengeance in TOM.

The primary changes in TOM are the addition of multi-inheritance, tuples as a first-class part of the language, cleaner syntax, free of the C programming language requirements for header files and pre-compiler commands, and the ability to use categories (the re-use mechanism) to include anything.

It is this latter ability that represents the whole idea . Unlike Objective C s categories that allowed only new methods to be built onto existing classes, TOM allows you to add class and instance variables, new methods, even new superclasses. This results in the redefinition of class as a class is defined by its main definition and any extensions , these extensions have become a first-class citizen of the language (similarly to Ruby programming language).

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=Pattern matching language=

Tom is also programming language particularly well-suited for programming various transformations on trees/terms and XML based documents. Tom is language extension which adds a new matching primitives to C programming language and Java programming language as well as support for rewrite rules systems.

Tom is good for:

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