How to read values from 'Parameters' in a .ssc file?

I am making a code where I would like to read from a component called 'source.ssc', the values that are included in the parameters section. The structure of the *.ssc file kind of looks like this:

component liquid_source

nodes

%%

%%

end

annotations

%

end

parameters

p = {0.01, 'Pa'};

T = {30, 'C' };

end

variables

%

%

end

branches

%

%

end

equations

$$

end

end

My system is called filler and I have tried to call the parameters from the block with get_param('filler/source','DialogParameters') which shows me all the data, but I would like only those in the parameters section. I have read that you can use readSSCfile but my Matlab does not recognize it. I have version 2022b update 5 with simulink and simscape.

[Stephen23]

@Paola Martin: please upload a sample data file by clicking the paperclip button.

[Paola Martin]

i uploaded the file, thanks for the suggestion and sorry for the delay.

Answer 1

[Mathieu NOE]

hello

maybe this can help you

the output is a structure (size depends of number of variables in your ssc file

here we get :

>> out(1) =

struct with fields:

name: 'p'

value: 0.0100

units: 'Pa'

>> out(2) =

struct with fields:

name: 'T'

value: 30

units: 'C'

code :

D=readlines('source.ssc');                                             % read as string array

ixP1=find(contains(D,'parameters'));                                       % find the start line
ixP2=find(contains(D,'end'));                                              % find the  stop line
ixP2=ixP2(ixP2>ixP1);
ixP2=ixP2(1);
lines = ixP1+1:ixP2-1;      % number lines

for ck=1:numel(lines)   
    tmp = D(lines(ck));
    out(ck).name = char(strtrim(extractBefore(tmp,'=')));
    out(ck).value = str2double(extractBetween(tmp,'{',','));
    out(ck).units = char(strtrim(extractBetween(tmp,'''','''')));
end

[Mathieu NOE]

This should work even with blank lines (at least it works on my side with and without blank lines)

attached both versions of the dummy ssc files

D=readlines('source.ssc');                                             % read as string array

ixP1=find(contains(D,'parameters'));                                       % find the start line
ixP2=find(contains(D,'end'));                                              % find the  stop line
ixP2=ixP2(ixP2>ixP1);
ixP2=ixP2(1);
lines = ixP1+1:ixP2-1;      % number lines
k = 0;

for ck=1:numel(lines)   
    tmp = char(D(lines(ck)));
    % check if line is empty or not
    if ~isempty(tmp)
        k = k+1;
        out(k).name = strtrim(extractBefore(tmp,'='));
        out(k).value = str2double(extractBetween(tmp,'{',','));
        out(k).units = strtrim(extractBetween(tmp,'''',''''));
    end
end

[Paola Martin]

It worked, thanks. What I didn't notice is that the file has two 'parameters' sections. Also is it possible to read the comments in the file or should I open another section to ask?

[Mathieu NOE]

hello

I can work on this without any extra charge :)

but maybe the file structure I used in the previous code is missing that second parameter section and also the comments section

how should the new *.ssc file look like then ?