Some user contributed material that I haven't had a chance to encorporate is in siod-contrib.txt including string and character support plus hooks for an object system.
Free Compilers Entry. Free Databases Entry.
From: IN%"firstname.lastname@example.org" "Bob Bane" 17-APR-1997 16:08:45.16 The Regional Validation Center (RVC) project out of NASA Goddard Code 935 is a system for catching, processing, indexing, storing and retrieving satellite image data. Its pieces (OO database in C++, planner/scheduler in Lisp, data access clients in Tk) communicate by passing s-expressions via sockets. The parts that aren't in Lisp use SIOD to read and traverse s-expressions. In the near future I want to use SIOD as a scripting language in a non-Tk data access client. All I wrote to make SIOD work for this was a simple C API for walking lists; I also put a case-smashing hack in the symbol scanner (which you might want to add back into SIOD). The Tk people here are finally disgusted with handling S-expressions as tcl lists or strings, so we're giving them tcl access to the C API. RVC URL: http://code935.gsfc.nasa.gov/RVCPage/RVC5.htm I've also used SIOD in quick hacks on other NASA projects. I needed to write a program to translate the configuration files from a 20-year-old data server to the format of a newer data server. I compiled SIOD on Solaris/x86, wrote a simple recursive-descent parser, slurped the old files into list structure, then walked the list to emit the new files; it was finished in about the time it would have taken to write the lex/yacc infrastructure just to read the data. -- Robert Bane Global Science & Technology 6411 Ivy Lane, Suite 610 Greenbelt MD 20770 301-474-9696 FAX:301-474-5970
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