69 lines
6.3 KiB
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69 lines
6.3 KiB
HTML
<!-- 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 WILD-PATHNAME-P</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_pars_1.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_pn_mat.htm"><IMG WIDTH=40 HEIGHT=40 ALT="[Next]" SRC="../Graphics/Next.gif" ALIGN=Bottom></A></H1>
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<A NAME="wild-pathname-p"><I>Function</I> <B>WILD-PATHNAME-P</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>wild-pathname-p</B> <I>pathname <TT>&optional</TT> field-key</I> => <I>generalized-boolean</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>pathname</I>---a <A REL=DEFINITION HREF="26_glo_p.htm#pathname_designator"><I>pathname designator</I></A>. <P>
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<I>Field-key</I>---one of <TT>:host</TT>, <TT>:device</TT> <TT>:directory</TT>, <TT>:name</TT>, <TT>:type</TT>, <TT>:version</TT>, or <A REL=DEFINITION HREF="a_nil.htm#nil"><B>nil</B></A>. <P>
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<I>generalized-boolean</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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<A REL=DEFINITION HREF="#wild-pathname-p"><B>wild-pathname-p</B></A> tests <I>pathname</I> for the presence of wildcard components. <P>
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If <I>pathname</I> is a <A REL=DEFINITION HREF="26_glo_p.htm#pathname"><I>pathname</I></A> (as returned by <A REL=DEFINITION HREF="f_pn.htm#pathname"><B>pathname</B></A>) it represents the name used to open the file. This may be, but is not required to be, the actual name of the file. <P>
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If <I>field-key</I> is not supplied or <A REL=DEFINITION HREF="a_nil.htm#nil"><B>nil</B></A>, <A REL=DEFINITION HREF="#wild-pathname-p"><B>wild-pathname-p</B></A> returns true if <I>pathname</I> has any wildcard components, <A REL=DEFINITION HREF="a_nil.htm#nil"><B>nil</B></A> if <I>pathname</I> has none. If <I>field-key</I> is <A REL=DEFINITION HREF="26_glo_n.htm#non-nil"><I>non-nil</I></A>, <A REL=DEFINITION HREF="#wild-pathname-p"><B>wild-pathname-p</B></A> returns true if the indicated component of <I>pathname</I> is a wildcard, <A REL=DEFINITION HREF="a_nil.htm#nil"><B>nil</B></A> if the component is not a wildcard. <P>
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<P><B>Examples:</B><P>
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<PRE>
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;;;The following examples are not portable. They are written to run
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;;;with particular file systems and particular wildcard conventions.
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;;;Other implementations will behave differently. These examples are
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;;;intended to be illustrative, not to be prescriptive.
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(wild-pathname-p (make-pathname :name :wild)) => <A REL=DEFINITION HREF="26_glo_t.htm#true">true</A>
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(wild-pathname-p (make-pathname :name :wild) :name) => <A REL=DEFINITION HREF="26_glo_t.htm#true">true</A>
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(wild-pathname-p (make-pathname :name :wild) :type) => <A REL=DEFINITION HREF="26_glo_f.htm#false">false</A>
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(wild-pathname-p (pathname "s:>foo>**>")) => <A REL=DEFINITION HREF="26_glo_t.htm#true">true</A> ;Lispm
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(wild-pathname-p (pathname :name "F*O")) => <A REL=DEFINITION HREF="26_glo_t.htm#true">true</A> ;Most places
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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 <I>pathname</I> is not a <A REL=DEFINITION HREF="26_glo_p.htm#pathname"><I>pathname</I></A>, a <A REL=DEFINITION HREF="26_glo_s.htm#string"><I>string</I></A>, or a <A REL=DEFINITION HREF="26_glo_s.htm#stream_associated_with_a_file"><I>stream associated with a file</I></A> an error of <A REL=DEFINITION HREF="26_glo_t.htm#type"><I>type</I></A> <A REL=DEFINITION HREF="e_tp_err.htm#type-error"><B>type-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_pn.htm#pathname"><B>pathname</B></A>, <A REL=DEFINITION HREF="t_logica.htm#logical-pathname"><B>logical-pathname</B></A>, <A REL=CHILD HREF="20_a.htm">Section 20.1 (File System Concepts)</A>, <A REL=CHILD HREF="19_ab.htm">Section 19.1.2 (Pathnames as Filenames)</A> <P>
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<P><B>Notes:</B><P>
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<P>
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Not all implementations support wildcards in all fields. See <A REL=CHILD HREF="19_bbbb.htm">Section 19.2.2.2.2 (:WILD as a Component Value)</A> and <A REL=CHILD HREF="19_bbc.htm">Section 19.2.2.3 (Restrictions on Wildcard Pathnames)</A>. <P>
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<P><HR>The following <A REL=META HREF="../Front/X3J13Iss.htm">X3J13 cleanup issues</A>, <I>not part of the specification</I>, apply to this section:<P><UL><LI> <A REL=CHILD HREF="../Issues/iss157.htm">FILE-OPEN-ERROR:SIGNAL-FILE-ERROR</A><LI> <A REL=CHILD HREF="../Issues/iss259.htm">PATHNAME-LOGICAL:ADD</A><LI> <A REL=CHILD HREF="../Issues/iss261.htm">PATHNAME-STREAM</A><LI> <A REL=CHILD HREF="../Issues/iss267.htm">PATHNAME-WILD:NEW-FUNCTIONS</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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