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From: Mason Freed on 17 Jun 2010 17:46
Any updates on this question?? There MUST be some way to distinguish warnings from syntax errors using the mlint() function. The information is obviously there - the editor shows them in different colors.

Anybody?
From: Matt Fig on 17 Jun 2010 18:24
This seems to work, if I understand what you are after:

G = mlint('funcname')
strfind({G.message},'error') % Returns empties if no word 'error' is found'
From: Mason Freed on 17 Jun 2010 18:37
Thanks for the quick response Matt.

However, your suggestion unfortunately doesn't work. For example, if I write this function:

--------------------
function myFunc()

foo=2
for ii=1:10
disp(ii);
bar=foo+3;
--------------------

In the editor, line 4 (the un-ended for-loop) shows up as a red error. However, running mlint doesn't return the word "error" at all:

>> mlint('myFunc.m')
L 3 (C 4): Terminate statement with semicolon to suppress output (in functions).
L 4 (C 1-3): An END might be missing, possibly matching FOR.
L 6 (C 1-3): The value assigned to variable 'bar' might be unused.

From the m-lint output, there's no way to tell that the 2nd message is an error, while #1 and #3 are warnings.

Any other thoughts?

Thanks,
Mason
From: Matt Fig on 17 Jun 2010 19:10
Ah, I see. It seems to me that to do what you want would be tedious, but possible. Here is one way I can see through to do it. Open up the preferences and then look at mlint. Copy the string down for every error type that you want to check for, then in your function compare the results of the call to MLINT with a string database. For example, here is a brief sketch. Note that some of the string manipulation could be optimized, this is just for illustration as to how one could approach the problem:

function tf = any_errors(fname)
% Returns logical true if MLint detectable errors are found in FNAME.
tf = 0;
G = mlint(fname);

if any(~cellfun(@isempty,strfind({G.message},'error')))
return
end

DB = {'BREAK can only be used in';
'Apparently a quoted string';
'Apparently an END is missing'}; % Add as many as you want.

for ii = 1:length(DB)
if any(~cellfun(@isempty,strfind({G.message},DB{ii})))
tf = 1;
return
end
end
From: Steven Lord on 18 Jun 2010 09:59

"Mason Freed" <mfreedREMOVETHIS(a)mfreedREMOVETHIS.com> wrote in message
news:hve52s$1o9$1(a)fred.mathworks.com...
> Any updates on this question?? There MUST be some way to distinguish
> warnings from syntax errors using the mlint() function. The information is
> obviously there - the editor shows them in different colors.
>
> Anybody?

What do you intend to do with this information? Do you want simply to check
if the function _can_ run without actually running it? Or do you want to
get a list of errors so that you can tell someone specifically what
lines/sections to fix?

--
Steve Lord
slord(a)mathworks.com
comp.soft-sys.matlab (CSSM) FAQ: http://matlabwiki.mathworks.com/MATLAB_FAQ
To contact Technical Support use the Contact Us link on
http://www.mathworks.com


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