29 lines
1.8 KiB
HTML
29 lines
1.8 KiB
HTML
|
<HTML><HEAD><TITLE>Tcl Built-In Commands - lindex manual page</TITLE></HEAD><BODY>
|
||
|
|
<H3><A NAME="M2">NAME</A></H3>
|
||
|
|
lindex - Retrieve an element from a list
|
||
|
|
<H3><A NAME="M3">SYNOPSIS</A></H3>
|
||
|
|
<B>lindex </B><I>list index</I><BR>
|
||
|
|
<H3><A NAME="M4">DESCRIPTION</A></H3>
|
||
|
|
This command treats <I>list</I> as a Tcl list and returns the
|
||
|
|
<I>index</I>'th element from it (0 refers to the first element of the list).
|
||
|
|
In extracting the element, <I>lindex</I> observes the same rules
|
||
|
|
concerning braces and quotes and backslashes as the Tcl command
|
||
|
|
interpreter; however, variable
|
||
|
|
substitution and command substitution do not occur.
|
||
|
|
If <I>index</I> is negative or greater than or equal to the number
|
||
|
|
of elements in <I>value</I>, then an empty
|
||
|
|
string is returned.
|
||
|
|
If <I>index</I> has the value <B>end</B>, it refers to the last element
|
||
|
|
in the list, and <B>end-</B><I>integer</I> refers to the last element in
|
||
|
|
the list minus the specified integer offset.
|
||
|
|
|
||
|
|
<H3><A NAME="M5">SEE ALSO</A></H3>
|
||
|
|
<B><A HREF="../TkCmd/list.htm">list</A></B>, <B><A HREF="../TkCmd/lappend.htm">lappend</A></B>, <B><A HREF="../TkCmd/linsert.htm">linsert</A></B>, <B><A HREF="../TkCmd/llength.htm">llength</A></B>, <B><A HREF="../TkCmd/lsearch.htm">lsearch</A></B>, <B><A HREF="../TkCmd/lsort.htm">lsort</A></B>, <B><A HREF="../TkCmd/lrange.htm">lrange</A></B>, <B><A HREF="../TkCmd/lreplace.htm">lreplace</A></B>
|
||
|
|
<H3><A NAME="M6">KEYWORDS</A></H3>
|
||
|
|
<A href="../Keywords/E.htm#element">element</A>, <A href="../Keywords/I.htm#index">index</A>, <A href="../Keywords/L.htm#list">list</A>
|
||
|
|
<HR><PRE>
|
||
|
|
<A HREF="../copyright.htm">Copyright</A> © 1993 The Regents of the University of California.
|
||
|
|
<A HREF="../copyright.htm">Copyright</A> © 1994-1996 Sun Microsystems, Inc.
|
||
|
|
<A HREF="../copyright.htm">Copyright</A> © 1995-1997 Roger E. Critchlow Jr.</PRE>
|
||
|
|
</BODY></HTML>
|