Re: [clisp-list] Re: Making special variables no longer special?

[Raymond T. <ray...@er...>]

>>>>> "Sam" == Sam Steingold <sd...@gn...> writes:

    >> * Raymond Toy <enlzbaq.gbl@revpffba.pbz> [2005-11-08 09:37:03 -0500]:
    >> 
    >> Is it possible to make a special variable no longer special in clisp,
    >> via some internal function?  This happens a lot in maxima where maxima
    >> declares a symbol as special, and later on in the same file, maxima
    >> wants to make that symbol no longer special.  I guess the intent is
    >> that the variable is special only for the file, not for all of maxima.

    Sam> not really, although there is a work-around:
    Sam> <http://clisp.cons.org/impnotes/eval-comp.html#spec-decl>

That might work, and it should be portable too.  And couldn't you
preserve the symbol-plist and function definitions by reinstalling
them on the new symbol?

    Sam> what do other implementations do?
    Sam> (proclaim '((not special) variable)) ?

They all seem to use implementation-specific internals to remove the
specialness from the symbol.

Thanks,

Ray