69 lines
5.1 KiB
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69 lines
5.1 KiB
HTML
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<!-- Common Lisp HyperSpec (TM), version 7.0 generated by Kent M. Pitman on Mon, 11-Apr-2005 2:31am EDT -->
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<TITLE>CLHS: Function LOAD-LOGICAL-PATHNAME-TRANSLATIONS</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="f_pn_hos.htm"><IMG WIDTH=40 HEIGHT=40 ALT="[Previous]" SRC="../Graphics/Prev.gif" ALIGN=Bottom></A><A REL=UP HREF="c_filena.htm"><IMG WIDTH=40 HEIGHT=40 ALT="[Up]" SRC="../Graphics/Up.gif" ALIGN=Bottom></A><A REL=NEXT HREF="f_logica.htm"><IMG WIDTH=40 HEIGHT=40 ALT="[Next]" SRC="../Graphics/Next.gif" ALIGN=Bottom></A></H1>
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<A NAME="load-logical-pathname-translations"><I>Function</I> <B>LOAD-LOGICAL-PATHNAME-TRANSLATIONS</B></A> <P>
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<P>
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<P><B>Syntax:</B><P>
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<P>
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<B>load-logical-pathname-translations</B> <I>host</I> => <I>just-loaded</I><P>
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<P>
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<P><B>Arguments and Values:</B><P>
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<P>
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<I>host</I>---a <A REL=DEFINITION HREF="26_glo_s.htm#string"><I>string</I></A>. <P>
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<I>just-loaded</I>---a <A REL=DEFINITION HREF="26_glo_g.htm#generalized_boolean"><I>generalized boolean</I></A>. <P>
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<P><B>Description:</B><P>
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<P>
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Searches for and loads the definition of a <A REL=DEFINITION HREF="26_glo_l.htm#logical_host"><I>logical host</I></A> named <I>host</I>, if it is not already defined. The specific nature of the search is <A REL=DEFINITION HREF="26_glo_i.htm#implementation-defined"><I>implementation-defined</I></A>. <P>
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If the <I>host</I> is already defined, no attempt to find or load a definition is attempted, and <A REL=DEFINITION HREF="26_glo_f.htm#false"><I>false</I></A> is returned. If the <I>host</I> is not already defined, but a definition is successfully found and loaded, <A REL=DEFINITION HREF="26_glo_t.htm#true"><I>true</I></A> is returned. Otherwise, an error is signaled. <P>
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<P><B>Examples:</B><P>
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<P>
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<PRE>
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(translate-logical-pathname "hacks:weather;barometer.lisp.newest")
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>> Error: The logical host HACKS is not defined.
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(load-logical-pathname-translations "HACKS")
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>> ;; Loading SYS:SITE;HACKS.TRANSLATIONS
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>> ;; Loading done.
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=> <A REL=DEFINITION HREF="26_glo_t.htm#true">true</A>
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(translate-logical-pathname "hacks:weather;barometer.lisp.newest")
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=> #P"HELIUM:[SHARED.HACKS.WEATHER]BAROMETER.LSP;0"
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(load-logical-pathname-translations "HACKS")
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=> <A REL=DEFINITION HREF="26_glo_f.htm#false">false</A>
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</PRE>
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</TT> <P>
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<P><B>Affected By:</B> None.
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<P>
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<P><B>Exceptional Situations:</B><P>
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<P>
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If no definition is found, an error of <A REL=DEFINITION HREF="26_glo_t.htm#type"><I>type</I></A> <A REL=DEFINITION HREF="e_error.htm#error"><B>error</B></A> is signaled. <P>
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<P><B>See Also:</B><P>
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<P>
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<A REL=DEFINITION HREF="t_logica.htm#logical-pathname"><B>logical-pathname</B></A> <P>
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<P><B>Notes:</B><P>
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<P>
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<A REL=DEFINITION HREF="26_glo_l.htm#logical_pathname"><I>Logical pathname</I></A> definitions will be created not just by <I>implementors</I> but also by <A REL=DEFINITION HREF="26_glo_p.htm#programmer"><I>programmers</I></A>. As such, it is important that the search strategy be documented. For example, an <A REL=DEFINITION HREF="26_glo_i.htm#implementation"><I>implementation</I></A> might define that the definition of a <I>host</I> is to be found in a file called ``<I>host</I>.translations'' in some specifically named directory. <P>
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<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/iss259.htm">PATHNAME-LOGICAL:ADD</A><P></UL><HR>
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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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