Parable is a small language, built over a compact byte coded virtual
       machine. The language uses a concatenative model with a strictly
       reverse polish notation, type awareness, and garbage collection.
       
       The syntax draws from earlier work on Toka and Retro, making extensive
       use of anonymous, nestable functions (called quotations) for function
       definition and control structures. The language also depends heavily
       on prefixes to help the compiler decide how to handle tokens. (These
       are a lot like colors in ColorForth, but are represented as single
       characters rather than color or stylistic elements).
       
       One other major difference from my earlier work is the memory model.
       Parable divides memory into distinct regions called slices. Memory
       accesses are done by referencing a slice and an offset. This differs
       from Retro and Toka which both used a single linear memory area for
       all code and data. The use of slices has allowed for some interesting
       things, including a garbage collector, and much simpler decompilation
       back to readable source code.
       
       The core language does not provide a specified I/O model. This is
       intentional; I now work with a variety of platforms and languages, and
       enforcing the existence of a traditional console environment has
       proven to be a limiting factor. Parable frees me to implement custom
       I/O functionality on a per-application basis, through the use of
       custom byte code additions. I have written numerous interfaces,
       including a simple script interpreter, an interactive full screen
       REPL, a browser based interface, and an implementation for iOS. There
       is also a console script interpreter with support for file I/O, basic
       output and command line argument support.
       
       Examples
       
         "Return a string containing 'hello world'"
         'hello world'
       
         "Average some values"
         [ 1 3 5 7 9 ] slice-length? [ 0 [ + ] reduce ] dip /
       
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       May 2018:
       
       The Parable project is inactive. I do not have the time needed to
       continue working on it at present.
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       forthworks.com:70 / atua / running on retro