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30 lines
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<TITLE>CLHS: Section 19.2.2.1.2.2</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="19_bbaba.htm"><IMG WIDTH=40 HEIGHT=40 ALT="[Previous]" SRC="../Graphics/Prev.gif" ALIGN=Bottom></A><A REL=UP HREF="19_bbab.htm"><IMG WIDTH=40 HEIGHT=40 ALT="[Up]" SRC="../Graphics/Up.gif" ALIGN=Bottom></A><A REL=NEXT HREF="19_bbb.htm"><IMG WIDTH=40 HEIGHT=40 ALT="[Next]" SRC="../Graphics/Next.gif" ALIGN=Bottom></A></H1>
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19.2.2.1.2.2 Common Case in Pathname Components</H2> <P>
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For the functions in <A REL=DEFINITION HREF="19_bbab.htm#pathnamecasefuns">Figure 19-2</A>, a value of <TT>:common</TT> for the <TT>:case</TT> argument that these <A REL=DEFINITION HREF="26_glo_f.htm#function"><I>functions</I></A> should receive and yield <A REL=DEFINITION HREF="26_glo_s.htm#string"><I>strings</I></A> in component values according to the following conventions: <P>
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<P><DL><DT>* All <A REL=DEFINITION HREF="26_glo_u.htm#uppercase"><I>uppercase</I></A> means to use a file system's customary <A REL=DEFINITION HREF="26_glo_c.htm#case"><I>case</I></A>. <DD><DT>* All <A REL=DEFINITION HREF="26_glo_l.htm#lowercase"><I>lowercase</I></A> means to use the opposite of the customary <A REL=DEFINITION HREF="26_glo_c.htm#case"><I>case</I></A>. <DD><DT>* Mixed <A REL=DEFINITION HREF="26_glo_c.htm#case"><I>case</I></A> represents itself. <P><DD></DL>Note that these conventions have been chosen in such a way that translation from <TT>:local</TT> to <TT>:common</TT> and back to <TT>:local</TT> is information-preserving. <P>
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