another symbol-printing fix

[Paul Jarc]

Squashing more bugs for weird symbol names.

        * print.c (scm_print_symbol_name): Handle #{`foo}#, #{,foo}#,
        and #{.}# specially.

This is still not complete, though.  There are still problem cases
like #{0.0}#, #{-i}#, etc.  Rather than trying to duplicate all the
number-detection logic from scm_lreadr, maybe it would be best to
handle just the few non-numeric special cases, and then try
scm_i_mem2number(); if that returns non-#f, treat the symbol name as
weird.  I'll work on a patch.


paul

print-symbol-special.patch
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