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31 lines
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<TITLE>CLHS: Section 1.4.1.4.1</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="01_dad.htm"><IMG WIDTH=40 HEIGHT=40 ALT="[Previous]" SRC="../Graphics/Prev.gif" ALIGN=Bottom></A><A REL=UP HREF="01_dad.htm"><IMG WIDTH=40 HEIGHT=40 ALT="[Up]" SRC="../Graphics/Up.gif" ALIGN=Bottom></A><A REL=NEXT HREF="01_dadb.htm"><IMG WIDTH=40 HEIGHT=40 ALT="[Next]" SRC="../Graphics/Next.gif" ALIGN=Bottom></A></H1>
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<H2>
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1.4.1.4.1 Case in Symbols</H2> <P>
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While <A REL=DEFINITION HREF="26_glo_c.htm#case"><I>case</I></A> is significant in the process of <I>interning</I> a <A REL=DEFINITION HREF="26_glo_s.htm#symbol"><I>symbol</I></A>, the <A REL=DEFINITION HREF="26_glo_l.htm#lisp_reader"><I>Lisp reader</I></A>, by default, attempts to canonicalize the case of a <A REL=DEFINITION HREF="26_glo_s.htm#symbol"><I>symbol</I></A> prior to interning; see <A REL=CHILD HREF="23_ab.htm">Section 23.1.2 (Effect of Readtable Case on the Lisp Reader)</A>. As such, case in <A REL=DEFINITION HREF="26_glo_s.htm#symbol"><I>symbols</I></A> is not, by default, significant. Throughout this document, except as explicitly noted otherwise, the case in which a <A REL=DEFINITION HREF="26_glo_s.htm#symbol"><I>symbol</I></A> appears is not significant; that is, <TT>HELLO</TT>, <TT>Hello</TT>, <TT>hElLo</TT>, and <TT>hello</TT> are all equivalent ways to denote a symbol whose name is <TT>"HELLO"</TT>. <P>
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The characters <A REL=DEFINITION HREF="26_glo_b.htm#backslash"><I>backslash</I></A> and <A REL=DEFINITION HREF="26_glo_v.htm#vertical-bar"><I>vertical-bar</I></A> are used to explicitly quote the <A REL=DEFINITION HREF="26_glo_c.htm#case"><I>case</I></A> and other parsing-related aspects of characters. As such, the notations <TT></TT>|<TT>hello</TT>|<TT></TT> and <TT>\h\e\l\l\o</TT> are equivalent ways to refer to a symbol whose name is <TT>"hello"</TT>, and which is <A REL=DEFINITION HREF="26_glo_d.htm#distinct"><I>distinct</I></A> from any symbol whose name is <TT>"HELLO"</TT>. <P>
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The <A REL=DEFINITION HREF="26_glo_s.htm#symbol"><I>symbols</I></A> that correspond to Common Lisp <A REL=DEFINITION HREF="26_glo_d.htm#defined_name"><I>defined names</I></A> have <A REL=DEFINITION HREF="26_glo_u.htm#uppercase"><I>uppercase</I></A> names even though their names generally appear in <A REL=DEFINITION HREF="26_glo_l.htm#lowercase"><I>lowercase</I></A> in this document. <P>
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