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A complete interpreter for a dialect of BASIC in one Java sourcefile http://journal.stuffwithstuff.com/201…
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About ----- Jasic is an exercise in simplicity and pedagogy. It is a complete standalone interpreter for a dialect of the original BASIC language that fits inside a single .java file. It handles tokenizing, parsing, interpreting, output, variables, expressions, and flow control, like a full-scale compiler or interpreter, just in miniature. I tried to keep the code simple and readable while still being terse. If you've ever wanted a gentle introduction to how programming languages work under the hood, Jasic is a good place to start. Getting Started --------------- You can build Jasic using your big IDE of choice, but the simplest way is just through the command line. Open a command prompt and navigate to the main Jasic directory (where this file is), then do: > javac com/stuffwithstuff/Jasic.java This compiles the code. To run it, enter: > java com.stuffwithstuff.Jasic <script> Where it says <script> fill in the path to some .jas file containing Jasic code. Here's one: > java com.stuffwithstuff.Jasic sample/mandel.jas More Info --------- The real information about Jasic, including the language syntax and how the interpreter works is all in with the code, so go ahead and read through Jasic.java. If you have any questions, feel free to get in touch. Cheers!