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86 lines
2.3 KiB
Plaintext
86 lines
2.3 KiB
Plaintext
NAME
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insert - insert one or more elements into a list at a given position
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SYNOPSIS
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insert(x, y, z_0, z_1, ...)
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TYPES
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x lvalue whose value is a list
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y int
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z_0, ... any
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return null value
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DESCRIPTION
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If after evaluation of z_0, z_1, ..., x is a list with contents
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(x_0, x_1, ..., x_y-1, x_y, ..., x_n-1), then after insert(),
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x has contents (x_0, x_1, ..., x_y-1, z_0, z_1, ..., x_y, ..., x_n-1),
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i.e. z_0, z_1, ... are inserted in order immediately before the
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element with index y (so that z_0 is now x[[y]]), or if y = n,
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after the last element x_n-1. An error occurs if y > n.
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EXAMPLE
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; A = list(2,3,4)
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; print A
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list (3 elements, 3 nonzero):
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[[0]] = 2
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[[1]] = 3
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[[2]] = 4
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; insert(A, 1, 5, 6)
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; print A
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list (5 elements, 5 nonzero):
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[[0]] = 1
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[[1]] = 5
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[[2]] = 6
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[[3]] = 3
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[[4]] = 4
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; insert(A, 2, remove(A))
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; print A
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list (5 elements, 5 nonzero):
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[[0]] = 1
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[[1]] = 5
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[[2]] = 4
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[[3]] = 6
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[[4]] = 3
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LIMITS
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insert() can have at most 100 arguments
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o <= y <= size(x)
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LINK LIBRARY
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none
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SEE ALSO
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append, delete, islist, list, pop, push, remove, rsearch, search, size
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## Copyright (C) 1999 Landon Curt Noll
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##
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## Calc is open software; you can redistribute it and/or modify it under
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## the terms of the version 2.1 of the GNU Lesser General Public License
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## as published by the Free Software Foundation.
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##
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## Calc is distributed in the hope that it will be useful, but WITHOUT
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## ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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## or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
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## Public License for more details.
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##
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## A copy of version 2.1 of the GNU Lesser General Public License is
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## distributed with calc under the filename COPYING-LGPL. You should have
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## received a copy with calc; if not, write to Free Software Foundation, Inc.
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## 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
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##
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## @(#) $Revision: 29.3 $
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## @(#) $Id: insert,v 29.3 2006/05/07 07:25:46 chongo Exp $
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## @(#) $Source: /usr/local/src/cmd/calc/help/RCS/insert,v $
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##
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## Under source code control: 1994/03/19 03:13:18
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## File existed as early as: 1994
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##
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## chongo <was here> /\oo/\ http://www.isthe.com/chongo/
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## Share and enjoy! :-) http://www.isthe.com/chongo/tech/comp/calc/
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