Hi all,
I posted a couple of weeks ago with what I thought was a problem with
the file system reading accented characters however, after debugging
line by line I have now found the true problem.
I am storing a list of files in an XML file as a sort of database.
Some of these filenames have accented characters (i.e. á é í ó ú
or ñ). However, upon writing the filename to the XML file, the
accented character is dropped. This causes a problem upon re-reading
the filenames because the program can not find the files because their
'saved' filename is now different. For example, the word "más" is
saved in the XML file as "ms".
Any ideas how I can work around this? I could strip out the accents
and replace them with their "normal" equivalent i.e. á becomes a. But
this is a sort of bodge fix as I will lose the link to the original
file. Also, I can see a scenario where a file may get overwritten
because the modified filename is the same as an existing file perhaps.
So, to put it blunty, I'm stuck! Help!
Thanks
Jan 9 '06
16  3430 
The code pages are not per country, but for greater regions or alphabets.
For example, western european languages use code page 1252 (ANSI Latin I) if
I remember correctly. So, if you are exchanging data from, say, France to
Spain, it will work. China or Russia would be a problem, though.
Also, if you know the code page that was used to create the file, you can
create your own encoding instead of using "Default":
new System.Text.Enc oding(codepage)
and pass it to your reader.
If you want to avoid the code page mess, then the writer and the reader
should use Unicode, which was invented to avoid this kind of problems.
--
Best regards,
Carlos J. Quintero
MZ-Tools: Productivity add-ins for Visual Studio 2005, Visual Studio .NET,
VB6, VB5 and VBA
You can code, design and document much faster in VB.NET, C#, C++ or VJ#
Free resources for add-in developers: http://www.mztools.com
"Hugh Janus" <my************ *@hotmail.com> escribió en el mensaje
news:11******** **************@ z14g2000cwz.goo glegroups.com.. .
Ah, well there is a problem. I am developing on a computer that is set
to Spanish regional settings but the app very possibly could be
installed on a computer with different regional settings. Is there a
universal one I could use?
> The code pages are not per country, but for greater regions or alphabets. For example, western european languages use code page 1252 (ANSI Latin I) if
I remember correctly. So, if you are exchanging data from, say, France to
Spain, it will work. China or Russia would be a problem, though.
Also, if you know the code page that was used to create the file, you can
create your own encoding instead of using "Default":
new System.Text.Enc oding(codepage)
and pass it to your reader.
If you want to avoid the code page mess, then the writer and the reader
should use Unicode, which was invented to avoid this kind of problems.
:-O Carlos, I am impressed! here, have another MVP!
I think my safest option is to use unicode as China is one of the
markets that might be targeted in the future.
This raises one other question. If unicode was invented to avoid all
this, then what is the benefit of NOT using unicode?
"Hugh Janus" <my************ *@hotmail.com> escribió en el mensaje
news:11******** *************@g 44g2000cwa.goog legroups.com... I think my safest option is to use unicode as China is one of the
markets that might be targeted in the future.
Yes, the safest is to use Unicode.
This raises one other question. If unicode was invented to avoid all
this, then what is the benefit of NOT using unicode?
Unicode has the drawback that it increases the size of file since it uses 2
bytes per character, compared to 1 byte per character when using code pages.
It is the price to pay to accommodate all the characters of all
alphabets.... So, NOT using unicode has the benefit of using smaller files.
--
Best regards,
Carlos J. Quintero
MZ-Tools: Productivity add-ins for Visual Studio 2005, Visual Studio .NET,
VB6, VB5 and VBA
You can code, design and document much faster in VB.NET, C#, C++ or VJ#
Free resources for add-in developers: http://www.mztools.com
You may also enjoy this article:
The Absolute Minimum Every Software Developer Absolutely, Positively Must
Know About Unicode and Character Sets (No Excuses!) http://www.joelonsoftware.com/articles/Unicode.html
--
Best regards,
Carlos J. Quintero
MZ-Tools: Productivity add-ins for Visual Studio 2005, Visual Studio .NET,
VB6, VB5 and VBA
You can code, design and document much faster in VB.NET, C#, C++ or VJ#
Free resources for add-in developers: http://www.mztools.com
> The Absolute Minimum Every Software Developer Absolutely, Positively Must
Know About Unicode and Character Sets (No Excuses!)
http://www.joelonsoftware.com/articles/Unicode.html
Carlos, this is superb. Thanks. However, when I read the filenames in
via StreamReader, I add them into a hashtable. Some of the filenames
are getting added to the hashtable as just
"?????????????? ??????????????? " which when written back via
StreamWriter become what looks like chinese characters.
Any ideas?
p.s. I have specified the same enconding for both writer and reader.
don't worry, i solved it. it was a typo.
One last thing: the 2 bytes per character for storage that I said is only
when you save as Unicode UTF-16, saving in UTF-8 consumes less space.
--
Best regards,
Carlos J. Quintero
MZ-Tools: Productivity add-ins for Visual Studio 2005, Visual Studio .NET,
VB6, VB5 and VBA
You can code, design and document much faster in VB.NET, C#, C++ or VJ#
Free resources for add-in developers: http://www.mztools.com
"Hugh Janus" <my************ *@hotmail.com> escribió en el mensaje
news:11******** **************@ o13g2000cwo.goo glegroups.com.. . don't worry, i solved it. it was a typo. This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
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