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// Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
// Copyright (C) 2010 - INRIA - Serge Steer <serge.steer@inria.fr>
//
// This file must be used under the terms of the CeCILL.
// This source file is licensed as described in the file COPYING, which
// you should have received as part of this distribution. The terms
// are also available at
// http://www.cecill.info/licences/Licence_CeCILL_V2.1-en.txt
function out=%s_i_st(varargin)
// - Modified by Vincent COUVERT (16/08/2004) so that insertion of an empty matrix
// is understood as an element deletion
// Only one non-colon index can be used
// - Modified by Serge Steer INRIA (04/05/2010) to fix problems in element
// deletion part
if size(varargin)>=3 & isempty(varargin($-1)) & ..
and(type(varargin(1))<>[10 15]) then
// st(i,:)=[] or st(:,j)=[] or st(i)=[] or st(:,j,:,:)=[]
//remove the substruct
out=varargin($);
dims=double(out.dims);
// Make the dimensions and the indices fit
Ndims=size(dims,"*")
nindex=size(varargin)-2
if nindex>Ndims then
//index in excess must be equal to 1 or to :
for k=Ndims+1:nindex
i=varargin(k)
if size(i,"*")>1|(i<>1&i<>eye()) then
error(msprintf(_("%s: A null assignment can have only one non-colon index.\n"),"%s_i_st"));
end
end
nindex=Ndims
elseif nindex<Ndims then
//collapse dimensions in excess
dims=[dims(1:nindex-1) prod(dims(nindex:$))]
Ndims=nindex;
if size(dims,"*")==1 then dims=[dims 1],end
end
// Check the compatibility of the index (at most one index cannot span
// all the elements ot the associated struct dimension)
cj=[];
for k=1:nindex
ind=varargin(k)
if or(size(ind)<>[-1 -1]) then
if or(type(ind)==[2,129]) then // size implicit index ($ based)
ind=horner(ind,dims(k));
end
ind=floor(ind);
//check if index is valid
if ~isreal(ind)|or(ind<=0) then
error(21)
end
//remove indices that exceed the associated struct dimension
ind(ind>dims(k))=[];
//compute the complement with respect to the associated dimension of st
ind=setdiff(1:dims(k),ind)
if ind<>[]&cj==[] then
cj=ind
loc=k,
else
error(msprintf(_("%s: A null assignment can have only one non-colon index.\n"),"%s_i_st"));
end
end
end
// Generate the result
if cj==[] then //st(:,:)=[] --> empty struct
Fout=getfield(1,out)
Fout=Fout(3:$)
for f=Fout
out(f)=list()
end
out.dims=int32([0 0])
else
//replace st(:,j,:,:)=[] by st=st(:,cj,:,:) where cj is the
//complement of j with respect to the associated dimension of st
out.dims=int32(dims)
varargin(loc)=cj
out=out(varargin(1:Ndims))
end
elseif lstsize(varargin)==3 & type(varargin(1))==10 then // out.i=in
i=varargin(1);
in=varargin(2);
out=varargin(3);
out=generic_i_st(i,in,out)
else
error(msprintf(_("%s: Not yet implemented.\n"),"%s_i_st"));
end
endfunction
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