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// Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
// Copyright (C) INRIA
//
// 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 M=%s_i_s(varargin)
//insertion of a matrix in an hypermatrix
[lhs,rhs]=argn(0)
M=varargin(rhs)
N=varargin(rhs-1)//inserted matrix
index=varargin(1) //
if rhs==3 then
//result will be a cell a struct
if type(index)==10 then //M.x=N or M.entries=N
M=struct()
M(index)=N
if index=="entries" then //M.entries=N
// change struct to cell
f=getfield(1,M);f(1)="ce"
setfield(1,f,M)
end
return
elseif type(index)==15 then
//M(i).x=N or M(i,j,..).x=N or M.x(i,j,..)or M(i,j..)
//check for a name in the index list
isstr=%f; for ii=index,if type(ii)==10 then isstr=%t,break,end,end
if isstr then
M=createstruct(index,N)
if type(index(1))<>10 & index(2)=="entries" then
// change struct to cell
f=getfield(1,M);f(1)="ce"
setfield(1,f,M)
end
else
M(index(:))=N
end
return
end
end
//X(i,j,k)=n hypermatrix
dims=matrix(size(M),-1,1)
v=M(:)
Ndims=rhs-2
nd=size(dims,"*")
if Ndims>nd then dims(nd+1:Ndims)=0;end
del=N==[];count=[]
dims1=[]
I=0;I1=0
iimp=0
for k=Ndims:-1:1
ik=varargin(k)//the kth subscript
if type(ik)==2 |type(ik)==129 then // size implicit subscript $...
ik=round(horner(ik,dims(k))) // explicit subscript
dims1(k,1)=max(max(ik),dims(k))
elseif type(ik)==4 then // boolean subscript
ik=find(ik)
dims1(k,1)=max(max(ik),dims(k))
elseif min(size(ik))<0 then // :
if dims(k)<>0 then
ik=1:dims(k)
else
iimp=iimp+1
if iimp<=size(size(N),"*") then
if iimp==1 then
single=%t
for kk=1:k-1
if size(varargin(kk),1)==-1|size(varargin(kk),"*")>1 then
single=%f
break
end
end
if single then
ik=1:size(N,"*"),
else
ik=1:size(N,size(size(N),"*")+1-iimp)
end
else
ik=1:size(N,size(size(N),"*")+1-iimp)
end
else
ik=1
end
end
dims1(k,1)=max(max(ik),dims(k))
if k==Ndims then
if k<nd then
ik=1:prod(dims(k:$))
dims1(k:nd,1)=dims(k:nd)
end
end
else //floating point subscript
ik=round(ik)
dims1(k,1)=max(max(ik),dims(k))
end
if size(ik,"*")>1 then
ik=ik(:)
if size(I,"*")>1 then
I=(dims1(k)*I).*.ones(ik)+ones(I).*.(ik-1)
else
I=dims1(k)*I+ik-1
end
else
I=dims1(k)*I+ik-1
end
if del then
if or(ik<>(1:dims1(k))') then
count=[count k]
nk=size(ik,"*")
end
end
end //end of the loop on subscripts
if ~del&or(dims1>dims) then
I1=0
for k=size(dims1,"*"):-1:1
ik1=(1:dims(k))'
if ik1<>[] then
if dims1(k)>1 then
if size(I1,"*")>1 then
I1=(dims1(k)*I1).*.ones(ik1)+ones(I1).*.(ik1-1)
else
I1=dims1(k)*I1+ik1-1
end
else
I1=dims1(k)*I1+ik1-1
end
end
end
v1=zeros(prod(dims1),1)
v1(I1+1)=v;v=v1
end
v(I+1)=matrix(N,-1,1)
if del then
if size(count,"*")>1 then
error(msprintf(_("%s: A null assignment can have only one non-colon index.\n"),"%s_i_s"));
end
dims1(count)=dims1(count)-nk
end
while dims1($)==1 then dims1($)=[],end
select size(dims1,"*")
case 0
M=v
case 1
M=v
case 2
M=matrix(v,dims1(1),dims1(2))
else
M=mlist(["hm","dims","entries"],int32(matrix(dims1,1,-1)),v)
end
endfunction
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