parseRcnlConstraintTermSet.m

% This function is part of the NMSM Pipeline, see file for full license.
%
% Parses XML settings for a RCNLCostTermSet, adding all fields included in 
% the xml block.  
%
% (struct) -> (struct)
% Parses settings from a RCNLCostTermSet.


function costTerms = parseRcnlConstraintTermSet(tree)
costTerms = cell(1, length(tree));
for term = 1:length(tree)
    if length(tree) == 1
        currentTerm = tree;
    else
        currentTerm = tree{term};
    end
    % Find general cost term elements
    costTerms{term}.type = getTextFromField(getFieldByNameOrError( ...
        currentTerm, 'type'));
    enabled = getTextFromField(getFieldByNameOrAlternate( ...
        currentTerm, 'is_enabled', 'false'));
    costTerms{term}.isEnabled = strcmpi(enabled, 'true');
    costTerms{term}.maxError = str2double(getTextFromField( ...
        getFieldByNameOrAlternate(currentTerm, 'max_error', '1')));
      costTerms{term}.minError = str2double(getTextFromField( ...
        getFieldByNameOrAlternate(currentTerm, 'min_error', '-1')));
    % Find other cost term elements
    termElements = fieldnames(currentTerm);
    for element = 1:length(termElements)
        if isempty(intersect(termElements{element}, ["type" ...
                "is_enabled" "max_error" "min_error"]))
            contents = getTextFromField(getFieldByNameOrError( ...
                currentTerm, termElements{element}));
            if strcmpi(contents, "true")
                contents = true;
            elseif strcmpi(contents, "false")
                contents = false;
            elseif ~isnan(str2double(contents))
                contents = str2double(contents);
            end
            costTerms{term}.(termElements{element}) = contents;
        end
    end 
end
end