Initially designed in the 1970's as a "portable assembly" language to facilitate implementing Pascal compilers on the varying computer architectures of the day, P-Code is the progenator of all modern bytecode interpreters. The success of the UCSD Pasca
It can be posited that strings are the most important data type in computing. Without character strings, all we have is a calculator. It is strings which allow us to compose documents, read and send emails, program in anything higher level than binary,
Digital Search Trees are an interesting data structure. Often times they are used as a gentle introduction to bit-oriented data structures, such as PATRICIA tries. Having just covered some other bit focused data structures and algorithms in the previou
One of the most ubiqitous algorithms in data compression is Huffman Coding. Developed in 1951 by David Huffman while a student at MIT, Huffman Coding makes use of a special type of binary tree called a huffman coding trie. Every message or fil
The Lempel-Ziv family of algorithms were introduced by Abraham Lempel and Jacob Ziv in two papers over the course of 1977 & 1978. The algorithms detailed in those papers have come to be known as lz77 (lz1) and lz78(lz2), respectively. Since being i
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The visitor pattern: OOP takes on the Expression Problem
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Improving mgcLisp's define syntax
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Separating the Men from the Boys, Knuth Style
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Reducing rotations during deletion from AVL trees
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Parsing Lisp: From Data To Code
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Swiz Heaps: A deterministic modification of Randomized Meldable Heaps
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Let's talk Eval/Apply
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BST Deletion: Removal By Merge
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Dictionary Based Compression: The LZW Algorithm
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Taking Action: Compiling Procedures to P-Code