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I know the title is a bit confusing, even I don't know how to summarize it. Here is the issue.

I have two strings, one is an Extended ASCII (can be represented using QLatin1String) and a Unicode String (can be represented by a QString).

I am combining them using QString::arg() method as below.

QLatin1String latinStr = "Adiós";
QString unicodeStr = "some Uniocode හාහාහා %1";

QString newStr = unicodeStr.arg(latinStr);

Now this newStr has my concatenated string. If I print newStr, it prints "?" for the extended ASCII. If I convert the newStr to a QLatin1String using QString::fromLatin1(), the unicode part shows in a weird way.

Is there any way to solve this?

Drew Dormann
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Praneeth Peiris
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  • That conversion to Latin1 breaks the Unicode string is clear. Don't see why newstr should be wrong though, assuming both Latin1str and UnicodeStr are correct. Are they both displayed correctly individually? – Frank Osterfeld Aug 14 '15 at 05:46
  • Yes, if I print them separately, they look fine. My concern is how to print the combined string. – Praneeth Peiris Aug 15 '15 at 10:10

1 Answers1

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You may be having issues with your locale and/or with fonts. Make sure your font supports Unicode. Since this is OS-dependent, I will list the options on an OS basis.

Windows

You absolutely will have Unicode support for QT, so it is likely a problem of the fonts available.

Linux

Your distribution would have already configured the locale. You may have changed it or are using a bare-bones distribution such as Arch Linux, in which case you should check their wiki or search online.

OS X

You will want to look here: https://stackoverflow.com/a/8161863/4147262

Community
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vadix
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  • The issue cannot be with the font or locale, since those two strings are represented perfectly when they were used individually. My concern is, how to display them properly *after* combining them. – Praneeth Peiris Aug 15 '15 at 10:13