33 lines
4.4 KiB
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33 lines
4.4 KiB
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<TITLE>CLHS: Section 13.1.4.1</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="13_ad.htm"><IMG WIDTH=40 HEIGHT=40 ALT="[Previous]" SRC="../Graphics/Prev.gif" ALIGN=Bottom></A><A REL=UP HREF="13_ad.htm"><IMG WIDTH=40 HEIGHT=40 ALT="[Up]" SRC="../Graphics/Up.gif" ALIGN=Bottom></A><A REL=NEXT HREF="13_adb.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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13.1.4.1 Graphic Characters</H2> <P>
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<A REL=DEFINITION HREF="26_glo_c.htm#character"><I>Characters</I></A> that are classified as <A REL=DEFINITION HREF="26_glo_g.htm#graphic"><I>graphic</I></A>, or displayable, are each associated with a glyph, a visual representation of the <A REL=DEFINITION HREF="26_glo_c.htm#character"><I>character</I></A>. <P>
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A <A REL=DEFINITION HREF="26_glo_g.htm#graphic"><I>graphic</I></A> <A REL=DEFINITION HREF="26_glo_c.htm#character"><I>character</I></A> is one that has a standard textual representation as a single <A REL=DEFINITION HREF="26_glo_g.htm#glyph"><I>glyph</I></A>, such as <TT>A</TT> or <TT>*</TT> or <TT>=</TT>. <A REL=DEFINITION HREF="26_glo_s.htm#space"><I>Space</I></A>, which effectively has a blank <A REL=DEFINITION HREF="26_glo_g.htm#glyph"><I>glyph</I></A>, is defined to be a <A REL=DEFINITION HREF="26_glo_g.htm#graphic"><I>graphic</I></A>. <P>
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Of the <A REL=DEFINITION HREF="26_glo_s.htm#standard_character"><I>standard characters</I></A>, <A REL=DEFINITION HREF="26_glo_n.htm#newline"><I>newline</I></A> is <A REL=DEFINITION HREF="26_glo_n.htm#non-graphic"><I>non-graphic</I></A> and all others are <A REL=DEFINITION HREF="26_glo_g.htm#graphic"><I>graphic</I></A>; see <A REL=CHILD HREF="02_ac.htm">Section 2.1.3 (Standard Characters)</A>. <P>
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<A REL=DEFINITION HREF="26_glo_c.htm#character"><I>Characters</I></A> that are not <A REL=DEFINITION HREF="26_glo_g.htm#graphic"><I>graphic</I></A> are called <A REL=DEFINITION HREF="26_glo_n.htm#non-graphic"><I>non-graphic</I></A>. <A REL=DEFINITION HREF="26_glo_n.htm#non-graphic"><I>Non-graphic</I></A> <A REL=DEFINITION HREF="26_glo_c.htm#character"><I>characters</I></A> are sometimes informally called ``formatting characters'' or ``control characters.'' <P>
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<TT>#\Backspace</TT>, <TT>#\Tab</TT>, <TT>#\Rubout</TT>, <TT>#\Linefeed</TT>, <TT>#\Return</TT>, and <TT>#\Page</TT>, if they are supported by the <A REL=DEFINITION HREF="26_glo_i.htm#implementation"><I>implementation</I></A>, are <A REL=DEFINITION HREF="26_glo_n.htm#non-graphic"><I>non-graphic</I></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/iss027.htm">CHARACTER-PROPOSAL:2-1-1</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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