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===PyonScript=== The PyonScript programming language is a Lisp-like language with a minimal syntax and a stack. It is an extension of the PostScript programming language and is implemented in PostScript. The PyonScript interpreter requires GPL Ghostscript to run. It has been tested on GPL Ghostscript 8.70 and 8.71 but may not work on earlier versions. GPL Ghostscript may be downloaded at http://www.ghostscript.com/ ==Build== On Unix-like systems, you may use the provided build script. To build, run the build.sh script: $ sh build.sh This assembles a "pyon.ps" file containing the source code for the PyonScript interpreter as well as a shell script named "pyon". To run the PyonScript interpreter on one or more PyonScript source files in sequence, specify the filenames of the programs as arguments: $ pyon file1.pyon [file2.pyon ...] To run PyonScript in interactive mode, simply run "pyon" without arguments: $ pyon ==Install== On Unix-like systems, you may install PyonScript by running the install.sh script: $ sudo sh install.sh This installs "pyon" and "pyon.ps" in the /usr/bin/ directory. ==Other Systems== It is possible to run PyonScript directly through Ghostscript without building and installing. This option may be best for non-Unix-like systems. To do so, concatenate all .ps files in the src/ directory into a single "pyon.ps" file, with "interpreter.ps" being the last. Then run Ghostscript on the command line with the following arguments for interactive mode: $ gs -q -dNODISPLAY -- pyon.ps If additional filenames are given on the command line, they will be sequentially interpreted as PyonScript source files. For Windows systems, there is a provided "pyon.bat" file. This runs PyonScript directly from the source files. It assumes that the Ghostscript executable is located at C:\Program Files\gs\gs8.71\bin\gswin32.exe If this is not the case, please replace this with the correct path. The filenames of PyonScript source files may be provided as additional arguments to "pyon.bat"; they will be executed in sequence. When called with no arguments, this loads the interactive shell.