Warning: Escape sequence ' ' is not valid. See 'help sprintf' for valid escape sequences
4 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
Michael
le 20 Mar 2014
Commenté : Walter Roberson
le 25 Jan 2016
Im trying to create a function that changes the destination folder for some data put into a text file, trouble is that when I try to input an address such as J:\My_Documents\MATLAB into an inputdlg box, and then use sprintf on the answer so that it can be used in
filename = fullfile('Destination','Filename.txt');
sprintf thinks that the \'s in the destination name mean things like \n and \t so it gives me an error saying:
Warning: Escape sequence 'M' is not valid. See 'help sprintf' for valid escape sequences.
and sprintf itself only outputs 'J:' and not the whole destination name is there anyway I can I can change a written answer from an inputdlg box to a useful form for my purpose that doesn't try to do any unwanted formatting on it?
6 commentaires
David Young
le 16 Sep 2014
Star Strider: I don't understand what sprintf is doing here. Isn't it the case that for any string s, sprintf('%s', s) is equal to s? So wouldn't
s = char(Destination);
be simpler? Have I missed something?
Guillaume
le 16 Sep 2014
Yes, sprintf('%s', s) doesn't do anything. Usually if you use the %s it's to insert a string into another.
For that matter, the char(s) is also useless, since the values returned by inputdlg are already strings, so
s = Destination;
Would work just as well and you might as well use Destination directly.
Réponse acceptée
Image Analyst
le 16 Sep 2014
Just avoid the situation in the first place . Use forward slashes /. Windows understands them just fine - no problem whatsoever. Perhaps that's not widely known, but yes, Windows is perfectly happy to use /, at least in MATLAB and Windows Explorer. You don't need to use backslashes at all, so don't.
2 commentaires
Walter Roberson
le 25 Jan 2016
nik sharma, we will need to see your code.
Image Analyst is correct about / being accepted by MS Windows. See https://blogs.msdn.microsoft.com/larryosterman/2005/06/24/why-is-the-dos-path-character/
Plus de réponses (0)
Voir également
Catégories
En savoir plus sur Characters and Strings dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!