str2num sending figures to printer, is there an alternative?
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While parsing a long text file using the STR2NUM command (to extract only numerical values from the file), matlab sent many empty FIGs to the printer for printing. It even used all the papers in the printer! Funny morning. I am aware of the option: Evaluation='restricted', yet it was unexpected.
What happened was that in the text file there was a line of text starting with the word PRINT.
example:
x = str2num('print "Termalization done." append info.txt')
Is there an alternative for simple parsing of text files?
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Hassaan
el 26 de Mzo. de 2024
Editada: Hassaan
el 26 de Mzo. de 2024
% Example text line that might be read from your file
textLine = 'The result is 42 and not 43.5 or any other number like -1.23e4';
% Regular expression to match numbers (including decimals and exponentials)
% This pattern matches:
% - Optional sign (+/-)
% - A digit sequence
% - Optional decimal part
% - Optional exponential part (e.g., e+10, e-10)
pattern = '[-+]?\d+\.?\d*(e[-+]?\d+)?';
% Extract matching strings (numbers in this case)
numbersAsStrings = regexp(textLine, pattern, 'match');
% Convert extracted strings to numbers
numbers = str2double(numbersAsStrings);
% Display the extracted numbers
format longG; % This sets the format to long with no trailing zeros
disp(numbers);
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