Andrew Tomazos

Folderscope

In 2008 I held a software concept competition to find an idea for a new software product. 1100 entries were received.

The winning entry of that competition was a description of a tool later named Folderscope. It is for analyzing, reorganizing and backing up large folders of files.

I have since implemented Folderscope, and it is available for download. For more information or to download Folderscope please come to the product web site at tomazos.com/folderscope. Folderscope 1.0 is made available for use free-of-charge.

Algorithms

Tomazos Binary Tree Traverse simulatenously walks a binary tree in preorder, inorder and postorder in O(n) time while using only O(1) space. In fact the iterator uses only 2 bits of space and a pointer to the current node.

Free Bits and Pieces

C++11 Variadic Templates Example a function (using variadic templates) that takes a string containing a number of placeholders and a corresponding number of other parameters (perhaps non-pod) and returns a string with the placeholders replaced with stringified versions of the parameters.

C++ Primitive Integer and Built-In Operator Type Coercion and Result: We look at a concrete implementation of the C++ primitive integer types and the resultant type and value of some of the unary and binary builtin operators. ie given a of type A and b of type B and the operator x, what is the type and value of (a x b).

remaster-ubuntu-9.10-server-amd.sh is a shell script that will download the Ubuntu 9.10 Karmic Server CD image and remaster it to install unattended

simplec 1.0 is a compiler/interpreter for a toy language. It demonstrates very basic compiler construction. simplec is built with bison (yacc) and flex (lex) in C and C++. The input file is parsed into a syntax tree and then walked to execute the statements.

gcc-stdinc 1.0 is a script that queries gcc (or g++) for it's system include directories and prints them out neatly one-per-line to standard output. Also included is a snippet showing how to do this from a VIM .vimrc file to set your VIM file search path.

Sliding Grid Puzzle is a web puzzle whereby you slide pieces in a grid to try to return them to their home positions (also called the N-puzzle or 15-puzzle). It demonstrates Javascript, XHTML, DOM, CSS and PHP.

jjrun 1.0d1 is a command-line harnass for the Java Compiler Compiler (JavaCC). It lets you run JavaCC with the semantics and ease of an interpretter. It uses bash/make to automagically regenerate a Makefile to do all the heavy-lifting. It is presently part of the development source tree of JavaCC which means it will be integrated into the next release.

Articles

In 2005 I wrote a series of articles about programming and the computing industry, as part of the now defunct "Internet Knowledge Base" project:

1.7 Segmail Email Authentication System

1.6 Sun and Java 5 Language Proper

1.5 File Type, Standards and Control

1.4 A Web Site as a Computer Program

1.3 Binary Data through to Source Code

1.2 Genetic Algorithms and Cake Baking

1.1 The Human Brain and Computer as Cascading Computation

There is more stuff in the Internet Knowledge Base Archive

Press

Commercial Projects and Employers