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    Changed all macros which ignore the numeric arg to warn if there is one. · 7fd629f8
    ram authored
    Changed all macros to use %READER-ERROR as appropriate.
    
    Changed #+/- to work correctly under *READ-SUPPRESS*.  These macros actually do
    the same thing as usual under read-suppress.  However, we have to make sure
    that *read-suppress* is nil when reading the feature expression.  Also,
    consider feature expressions with package errors to be absent.
    
    Fixed various macros to return NIL rather than the value of *read-suppress*
    when *read-suppress* is true.
    
    Fixed #: to use the new READ-EXTENDED-TOKEN return value to detect colons,
    rather than just searching (since they might be escaped.)
    
    When *read-suppress* is true and *read-eval* is false, don't signal an error
    on #.  When we do error for #., use the correct READER-ERROR.
    
    Changed #r to just bind *read-base* and call read, instead of doing all sorts
    of weird stuff to reinvent numeric reading.  Check for illegal radices.
    
    Deleted some dead code once used for #=/##.
    
    Made # a non-terminating read macro character (the only one in standard CL.)
    So you can have symbols like foo#3, or whatever.
    7fd629f8