Why does XMLREAD introduce extra whitespace into my .xml file?

Question

MathWorks Support Team 2012-4-6

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/94189-why-does-xmlread-introduce-extra-whitespace-into-my-xml-file

I read in and export .xml files using the XMLREAD and XMLWRITE functions. If I read in and export to the same file without making any changes, additional whitespace characters are introduced.

请先登录，再回答此问题。

Answer 1

MathWorks Support Team 2012-4-6

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/94189-why-does-xmlread-introduce-extra-whitespace-into-my-xml-file#answer_103541

The extra whitespace is introduced by the Saxon XML processor, which is the library that MATLAB uses for the XML processing.

To work around this issue, use the function below to automatically remove all extra new whitespaces and new lines in the XML file:

function xmlremoveextralines(filePath)
% Read file.
fId = fopen(filePath, 'r');
fileContents = fread(fId, '*char')';
fclose(fId);
% Write new file.
fId = fopen(filePath, 'w');
% Remove extra lines.
fwrite(fId, regexprep(fileContents, '\n\s*\n', '\n'));
fclose(fId);