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99 lines
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<TITLE>CLHS: Issue CHARACTER-LOOSE-ENDS Writeup</TITLE>
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<H1><A REV=MADE HREF="http://www.lispworks.com/"><IMG WIDTH=80 HEIGHT=65 ALT="[LISPWORKS]" SRC="../Graphics/LWSmall.gif" ALIGN=Bottom></A><A REL=TOP HREF="../Front/index.htm"><IMG WIDTH=237 HEIGHT=65 ALT="[Common Lisp HyperSpec (TM)]" SRC="../Graphics/CLHS_Sm.gif" ALIGN=Bottom></A> <A REL=PREV HREF="../Issues/iss024_w.htm"><IMG WIDTH=40 HEIGHT=40 ALT="[Previous]" SRC="../Graphics/Prev.gif" ALIGN=Bottom></A><A REL=UP HREF="../Issues/iss025.htm"><IMG WIDTH=40 HEIGHT=40 ALT="[Up]" SRC="../Graphics/Up.gif" ALIGN=Bottom></A><A REL=NEXT HREF="../Issues/iss026_w.htm"><IMG WIDTH=40 HEIGHT=40 ALT="[Next]" SRC="../Graphics/Next.gif" ALIGN=Bottom></A></H1>
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<H2>Issue CHARACTER-LOOSE-ENDS Writeup</H2>
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<PRE><B>Issue:</B> <A HREF="iss025.htm">CHARACTER-LOOSE-ENDS</A><P>
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<P>
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<B>References:</B> CLtL p.354, pp.51-2<P>
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<P>
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<B>Category:</B> CLARIFICATION<P>
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<P>
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<B>Edit history:</B> 29-Apr-90, Version 1 by Moon (for Steele)<P>
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<P>
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<B>Problem description:<P>
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</B><P>
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The issues passed on the character proposal did not explicitly address<P>
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the following, but they no longer make sense in light of the new<P>
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character scheme that has been adopted.<P>
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<P>
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The #nnn\x reader syntax creates a character with font attribute nnn,<P>
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but there is no longer a font attribute.<P>
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<P>
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<A REL=DEFINITION HREF="../Body/f_coerce.htm#coerce"><B>COERCE</B></A> coerces an integer to a character by calling INT-CHAR, but the<P>
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INT-CHAR function no longer exists.<P>
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<P>
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This is Symbolics issue #26.<P>
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<P>
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<B>Proposal (CHARACTER-LOOSE-ENDS:FIX):<P>
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</B><P>
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Remove the #nnn\x reader syntax; an implementation can define it as an<P>
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extension.<P>
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<P>
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Remove coercion from integer to character.<P>
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<P>
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<B>Rationale:<P>
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</B><P>
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Presumably the character subcommittee simply overlooked these points and<P>
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the above proposal would have passed with the other character proposals<P>
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if it had been proposed.<P>
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<P>
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<B>Current practice:<P>
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</B><P>
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I don't know.<P>
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<P>
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<B>Cost to Implementors:<P>
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</B><P>
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Easy.<P>
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<P>
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<B>Cost to Users:<P>
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</B><P>
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None.<P>
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<P>
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<B>Cost of non-adoption:<P>
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</B><P>
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These two features will still be in the language, but their specification<P>
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will not make any sense.<P>
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<P>
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<B>Performance impact:<P>
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</B><P>
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None.<P>
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<P>
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<B>Benefits:<P>
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</B><P>
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Consistent language.<P>
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<P>
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<B>Esthetics:<P>
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</B><P>
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Consistent language.<P>
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<P>
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<B>Discussion:<P>
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</B><P>
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None.<P>
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</PRE>
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