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31 lines
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<TITLE>CLHS: Section 6.1.1.2</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="06_aaab.htm"><IMG WIDTH=40 HEIGHT=40 ALT="[Previous]" SRC="../Graphics/Prev.gif" ALIGN=Bottom></A><A REL=UP HREF="06_aa.htm"><IMG WIDTH=40 HEIGHT=40 ALT="[Up]" SRC="../Graphics/Up.gif" ALIGN=Bottom></A><A REL=NEXT HREF="06_aac.htm"><IMG WIDTH=40 HEIGHT=40 ALT="[Next]" SRC="../Graphics/Next.gif" ALIGN=Bottom></A></H1>
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6.1.1.2 Loop Keywords</H2> <P>
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<A REL=DEFINITION HREF="26_glo_l.htm#loop_keyword"><I>Loop keywords</I></A> are not true <A REL=DEFINITION HREF="26_glo_k.htm#keyword"><I>keywords</I></A>[1]; they are special <A REL=DEFINITION HREF="26_glo_s.htm#symbol"><I>symbols</I></A>, recognized by <A REL=DEFINITION HREF="26_glo_n.htm#name"><I>name</I></A> rather than <A REL=DEFINITION HREF="26_glo_o.htm#object"><I>object</I></A> identity, that are meaningful only to the <A REL=DEFINITION HREF="m_loop.htm#loop"><B>loop</B></A> facility. A <A REL=DEFINITION HREF="26_glo_l.htm#loop_keyword"><I>loop keyword</I></A> is a <A REL=DEFINITION HREF="26_glo_s.htm#symbol"><I>symbol</I></A> but is recognized by its <A REL=DEFINITION HREF="26_glo_n.htm#name"><I>name</I></A> (not its identity), regardless of the <A REL=DEFINITION HREF="26_glo_p.htm#package"><I>packages</I></A> in which it is <A REL=DEFINITION HREF="26_glo_a.htm#accessible"><I>accessible</I></A>. <P>
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In general, <A REL=DEFINITION HREF="26_glo_l.htm#loop_keyword"><I>loop keywords</I></A> are not <A REL=DEFINITION HREF="26_glo_e.htm#external_symbol"><I>external symbols</I></A> of the <TT>COMMON-LISP</TT> package, except in the coincidental situation that a <A REL=DEFINITION HREF="26_glo_s.htm#symbol"><I>symbol</I></A> with the same name as a <A REL=DEFINITION HREF="26_glo_l.htm#loop_keyword"><I>loop keyword</I></A> was needed for some other purpose in Common Lisp. For example, there is a <A REL=DEFINITION HREF="26_glo_s.htm#symbol"><I>symbol</I></A> in the <TT>COMMON-LISP</TT> package whose <A REL=DEFINITION HREF="26_glo_n.htm#name"><I>name</I></A> is <TT>"UNLESS"</TT> but not one whose <A REL=DEFINITION HREF="26_glo_n.htm#name"><I>name</I></A> is <TT>"UNTIL"</TT>. <P>
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If no <A REL=DEFINITION HREF="26_glo_l.htm#loop_keyword"><I>loop keywords</I></A> are supplied in a <A REL=DEFINITION HREF="m_loop.htm#loop"><B>loop</B></A> <A REL=DEFINITION HREF="26_glo_f.htm#form"><I>form</I></A>, the Loop Facility executes the loop body repeatedly; see <A REL=CHILD HREF="06_aaaa.htm">Section 6.1.1.1.1 (Simple Loop)</A>. <P>
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<P><HR>The following <A REL=META HREF="../Front/X3J13Iss.htm">X3J13 cleanup issue</A>, <I>not part of the specification</I>, applies to this section:<P><UL><LI> <A REL=CHILD HREF="../Issues/iss199.htm">JUN90-TRIVIAL-ISSUES:11</A><P></UL><HR>
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<A REL=NAVIGATOR HREF="../Front/StartPts.htm"><IMG WIDTH=80 HEIGHT=40 ALT="[Starting Points]" SRC="../Graphics/StartPts.gif" ALIGN=Bottom></A><A REL=TOC HREF="../Front/Contents.htm"><IMG WIDTH=80 HEIGHT=40 ALT="[Contents]" SRC="../Graphics/Contents.gif" ALIGN=Bottom></A><A REL=INDEX HREF="../Front/X_Master.htm"><IMG WIDTH=80 HEIGHT=40 ALT="[Index]" SRC="../Graphics/Index.gif" ALIGN=Bottom></A><A REL=INDEX HREF="../Front/X_Symbol.htm"><IMG WIDTH=80 HEIGHT=40 ALT="[Symbols]" SRC="../Graphics/Symbols.gif" ALIGN=Bottom></A><A REL=GLOSSARY HREF="../Body/26_a.htm"><IMG WIDTH=80 HEIGHT=40 ALT="[Glossary]" SRC="../Graphics/Glossary.gif" ALIGN=Bottom></A><A HREF="../Front/X3J13Iss.htm"><IMG WIDTH=80 HEIGHT=40 ALT="[Issues]" SRC="../Graphics/Issues.gif" ALIGN=Bottom></A><BR>
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<A REL=COPYRIGHT HREF="../Front/Help.htm#Legal"><I>Copyright 1996-2005, LispWorks Ltd. All rights reserved.</I></A><P>
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