Find cases of vectors-patterns in an array

I have 4 cases of vectors inside an array that I want to index. All of them have trailing -1. I would like to index such patterns in my array.

Case 1

   0 -1 -1 -1...-1 0 % starts with 0 ends with 0

Case 2

   0 -1 -1 -1...-1 1 % starts with 0 ends with 1

Case 3

   1 -1 -1 -1...-1 1 % starts with 1 ends with 1

Case 4

   1 -1 -1 -1...-1 0 % starts with 1 ends with 0

An example of an array could be:

t=[0 0 0 0 0 *0 -1 1* 1 1 1 1 *1 -1 -1 -1 1* 0 0 0 0];

In this array case 2 and case 3 are observed in between the asterisks.

Thank you!

Answer 1

[Andrei Bobrov]

t=[0 0 0 0 0 0 -1 1 1 1 1 1 1 -1 -1 -1 1 0 0 0 0];

t1 = t(:).' == -1;
ii = [strfind(t1,[0 1]);strfind(t1,[1 0])+1].';
cases = [0 0;0 1;1 1;1 0];
[i1,i1] = ismember(t(ii),cases,'rows');
out = [i1, ii];

[Giorgos Papakonstantinou]

Thank you very much Andrei! Can you check also a similar question to indexing:

In a logical array index the area with the most TRUE values

Answer 2

[Giorgos Papakonstantinou]

I had also this in my mind as a backup

idx= [0; diff(t1'==-1)]==-1 | [diff(t1'==-1); 0]==1;

a=reshape(t1(idx),2,[])

Then the vector cases you said above in combination with ismember would provide what I wanted.