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Compress output of 'm2json' #501

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Merged
merged 1 commit into from
Aug 4, 2024
Merged

Compress output of 'm2json' #501

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51 changes: 31 additions & 20 deletions plotly/plotly_aux/m2json.m
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Original file line number Diff line number Diff line change
Expand Up @@ -3,49 +3,60 @@
valstr = struct2json(val);
elseif iscell(val)
valstr = cell2json(val);
elseif isa(val, 'numeric')
elseif isa(val, "numeric")
sz = size(val);
if isa(val,"single")
precision = "7";
else
precision = "15";
end
fmt = "%." + precision + "g,";
if length(find(sz>1))>1 % 2D or higher array
valstr = '';
valstr = "";
for i = 1:sz(1)
valsubstr = [sprintf('%.15g, ', val(i,:))];
valsubstr = valsubstr(1:(end-2));
valstr = [valstr ', [' valsubstr ']'];
valsubstr = sprintf(fmt, val(i,:));
valsubstr = valsubstr(1:(end-1));
valstr = valstr + ", [" + valsubstr + "]";
end
valstr = valstr(3:end); % trail leading commas
else
valstr = [sprintf('%.15g, ', val)];
valstr = valstr(1:(end-2));
valstr = [sprintf(fmt, val)];
valstr = valstr(1:(end-1));
end
if length(val)>1
valstr = ['[' valstr ']'];
elseif length(val) == 0
valstr = '[]';
valstr = "[" + valstr + "]";
elseif isempty(val)
valstr = "[]";
end
valstr = strrep(valstr,'-Inf', 'null');
valstr = strrep(valstr, 'Inf', 'null');
valstr = strrep(valstr, 'NaN', 'null');
valstr = strrep(valstr,"-Inf", "null");
valstr = strrep(valstr, "Inf", "null");
valstr = strrep(valstr, "NaN", "null");
elseif ischar(val)
[r, ~] = size(val);
% We can't use checkescape() if we have ['abc'; 'xyz']
if r > 1
valstr = cell2json(cellstr(val));
else
val = checkescape(val); %add escape characters
valstr = ['"' val '"'];
val = checkescape(val); % add escape characters
valstr = sprintf('"%s"', val);
end
elseif islogical(val)
if val
valstr = 'true';
valstr = "true";
else
valstr = 'false';
valstr = "false";
end
elseif isdatetime(val)
valstr = m2json(convertDate(val));
elseif isstring(val)
fh = ifel(isscalar(val),@char,@cellstr);
if isscalar(val)
fh = @char;
else
fh = @cellstr;
end
valstr = m2json(fh(val));
else
valstr = ''; % wtf is it?
warning("Failed to m2json encode class of type: %s",class(val));
valstr = "";
warning("Failed to m2json encode class of type: %s", class(val));
end
end