Comparing unicode chars
Hello together,
maybe this is a very simple thing, but I didn’t find any solution yet:
I want to compare char by char a QString – like this
- for (i = 0; i < message.length(); i++) {
- if (message[i] == 'ä')
- // do somthing
The point is: it doesn’t work. “ä” is a 16bit unicode char and I don’t know how to to the comparison right.
Can anybody help me? That would be very nice.
Best regards
3 replies
Are you aware that ‘ä’ can be encoded in different ways in unicode? Your simple comparison only detects one way to encode it!
You might want to normalize (see QString::normalized [doc.qt.nokia.com]) both strings before comparing them or be prepared to have strings that produce the same sequence of glyphs (the little drawings on the screen) be considered different.
Some normalization forms encode ‘ä’ in a sequence of unicode codepoints. In that case your character-by-character comparison will miss it.
You must log in to post a reply. Not a member yet? Register here!