SemWare Tutorial: A Simple Compiler and Interpreter for Teeny Pascal Language

Note:
Tutorial's Text and Program's Code are writen by Mr. Sam Mitchel the Leader of SemWare Corporation.
Original Site: A Simple Compiler
All Materials in this Repo are represented with the written Permission of the Author.

The goal of this series of articles is to develop a simple compiler. Along the way, I'll show how easy it is to do so.

There are four major parts to a compiler: Lexical analysis, Parsing, Semantic analysis, and Code generation.

Briefly, Lexical analysis breaks the source code into its lexical units. Parsing combines those units into sentences, using the grammar (see below) to make sure the are allowable. Semantic analysis makes sure the sentences make sense, especially in areas that are not so easily specified via the grammar. Type checking is a good example. Code generation takes the output of the Parser (many times in the format of an Abstract Syntax Tree) and converts it to (virtual) machine code, assembly code, or perhaps even code in another programming language - C is a popular target.

Tutorial Chapter	Code Repositiry
• Part 1: Lexical Analysis	VS Project Teeny-1
• Part 2: Syntax Analysis	VS Project Teeny-2
• Part 3: More about Grammars	VS Project Teeny-3
• Part 4: Semantic Analysis and the Symbol Table	VS Project Teeny-4
• Part 5: Variables	VS Project Teeny-5
• Part 6: Control Statements	VS Project Teeny-6
• References

SemWare is a registered trademark of Sammy and Bobbi Mitchell.