[Octave-bug-tracker] [bug #37961] textscan : whitespace specification doesn't work

[Ben Abbott]

Follow-up Comment #10, bug #37961 (project octave):

Looking again, I see the OP's syntax is clumsy/ugly.  If the whitespace
parameter is dropped then the statement below is in error.


A = textscan ('XQPCTick;Tag', '%s;%s');


The first "%s" will read the entire string.  The will be no semicolon
remaining to match the "literal" one and nothing remaining to be read by the
second "%s".

The OP's full syntax does work for me with MatlabR2012b


A = textscan ('XQPCTick;Tag', '%s;%s', 'whitespace', ';');
A{:}
ans =     'XQPCTick'
ans =     'Tag'


While I don't see it in Mathworks documentation, it does appear that the
format string is parsed while respecting the "whitespace" parameter.  However,
for the format string the characters " \t" are also respected. 

I agree we shouldn't try to copy this "feature", as it leads to confusing
syntax (like the OP's).

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