58 lines
6.1 KiB
HTML
58 lines
6.1 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 ED</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_room.htm"><IMG WIDTH=40 HEIGHT=40 ALT="[Previous]" SRC="../Graphics/Prev.gif" ALIGN=Bottom></A><A REL=UP HREF="c_enviro.htm"><IMG WIDTH=40 HEIGHT=40 ALT="[Up]" SRC="../Graphics/Up.gif" ALIGN=Bottom></A><A REL=NEXT HREF="f_inspec.htm"><IMG WIDTH=40 HEIGHT=40 ALT="[Next]" SRC="../Graphics/Next.gif" ALIGN=Bottom></A></H1>
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<A NAME="ed"><I>Function</I> <B>ED</B></A> <P>
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<P><B>Syntax:</B><P>
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<P>
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<B>ed</B> <I><TT>&optional</TT> x</I> => <I><A REL=DEFINITION HREF="26_glo_i.htm#implementation-dependent"><I>implementation-dependent</I></A></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>x</I>---<A REL=DEFINITION HREF="a_nil.htm#nil"><B>nil</B></A>, 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_f.htm#function_name"><I>function name</I></A>. The default is <A REL=DEFINITION HREF="a_nil.htm#nil"><B>nil</B></A>. <P>
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<P><B>Description:</B><P>
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<P>
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<A REL=DEFINITION HREF="#ed"><B>ed</B></A> invokes the editor if the <A REL=DEFINITION HREF="26_glo_i.htm#implementation"><I>implementation</I></A> provides a resident editor. <P>
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If <I>x</I> is <A REL=DEFINITION HREF="a_nil.htm#nil"><B>nil</B></A>, the editor is entered. If the editor had been previously entered, its prior state is resumed, if possible. <P>
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If <I>x</I> is a <A REL=DEFINITION HREF="26_glo_p.htm#pathname"><I>pathname</I></A> or <A REL=DEFINITION HREF="26_glo_s.htm#string"><I>string</I></A>, it is taken as the <A REL=DEFINITION HREF="26_glo_p.htm#pathname_designator"><I>pathname designator</I></A> for a <A REL=DEFINITION HREF="26_glo_f.htm#file"><I>file</I></A> to be edited. <P>
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If <I>x</I> is a <A REL=DEFINITION HREF="26_glo_f.htm#function_name"><I>function name</I></A>, the text of its definition is edited. The means by which the function text is obtained is <A REL=DEFINITION HREF="26_glo_i.htm#implementation-defined"><I>implementation-defined</I></A>. <P>
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<P><B>Examples:</B> None.
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<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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The consequences are undefined if the <A REL=DEFINITION HREF="26_glo_i.htm#implementation"><I>implementation</I></A> does not provide a resident editor. <P>
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Might signal <A REL=DEFINITION HREF="e_tp_err.htm#type-error"><B>type-error</B></A> if its argument is supplied but is not a <A REL=DEFINITION HREF="26_glo_s.htm#symbol"><I>symbol</I></A>, a <A REL=DEFINITION HREF="26_glo_p.htm#pathname"><I>pathname</I></A>, or <A REL=DEFINITION HREF="a_nil.htm#nil"><B>nil</B></A>. <P>
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If a failure occurs when performing some operation on the <A REL=DEFINITION HREF="26_glo_f.htm#file_system"><I>file system</I></A> while attempting to edit a <A REL=DEFINITION HREF="26_glo_f.htm#file"><I>file</I></A>, an error of <A REL=DEFINITION HREF="26_glo_t.htm#type"><I>type</I></A> <A REL=DEFINITION HREF="e_file_e.htm#file-error"><B>file-error</B></A> is signaled. <P>
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An error of <A REL=DEFINITION HREF="26_glo_t.htm#type"><I>type</I></A> <A REL=DEFINITION HREF="e_file_e.htm#file-error"><B>file-error</B></A> might be signaled if <I>x</I> is a <A REL=DEFINITION HREF="26_glo_d.htm#designator"><I>designator</I></A> for a <A REL=DEFINITION HREF="26_glo_w.htm#wild"><I>wild</I></A> <A REL=DEFINITION HREF="26_glo_p.htm#pathname"><I>pathname</I></A>. <P>
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<A REL=DEFINITION HREF="26_glo_i.htm#implementation-dependent"><I>Implementation-dependent</I></A> additional conditions might be signaled as well. <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=DEFINITION HREF="f_cmp_fi.htm#compile-file"><B>compile-file</B></A>, <A REL=DEFINITION HREF="f_load.htm#load"><B>load</B></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> None.
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<P>
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<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/iss258.htm">PATHNAME-HOST-PARSING:RECOGNIZE-LOGICAL-HOST-NAMES</A><LI> <A REL=CHILD HREF="../Issues/iss259.htm">PATHNAME-LOGICAL:ADD</A><LI> <A REL=CHILD HREF="../Issues/iss157.htm">FILE-OPEN-ERROR:SIGNAL-FILE-ERROR</A><LI> <A REL=CHILD HREF="../Issues/iss174.htm">FUNCTION-NAME:LARGE</A><P></UL><HR>
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