Colon operation for numerical string(s)/Print page selection

Parse numerical strings/string with delimiter to a concatenated numerical vector

Parse numerical strings cell array or string with delimiter to a concatenated numerical vector with equal space for each numerical range. What it does is basically the colon operation for strings with concatenation. It is useful for GUI design as per user input or converting data from text file input. All the COLON operation rules apply to this function.
Examples:
numstr2range('1-10') % The output is equivalent to 1:10
numstr2range('1-5,7,9-10') % The output is equivalent to [1:5,7,9:10]. Very much like the print page selection.
numstr2range('1-10','space',0.1) % The output is equivalent to 1:0.1:10
numstr2range('1-10,11-20','space',0.1) % The output is equivalent to [1:0.1:10 11:0.1:20]
numstr2range({'1-10','101-110','50-51,80'},'space',0.1); % The output is equivalent to [1:0.1:10 101:0.1:110 50:0.1:51 80];
numstr2range('1-10,8-12,15-16','space',0.1); % The output is equivalent to [1:0.1:10 8:0.1:12 15:0.1:16];
numstr2range('1-10,8-12,15-16','duplicated',false); % The output is equivalent to unique([1:10 8:12 15:16]);
numstr2range('2-5,1-4','sortoption','descend') % The output is equivalent to sort([2:5 1:4],'descend')