Extended Ascii Codes in QTextEdit

mulfycrowh

Hi,

We find some threads about this topic.
I tried :

QTextCodec::setCodecForLocale(QTextCodec::codecForName("UTF-8"));

before sending the text to the QTextEdit but it doesn't display the extended ASCII codes.
Many thanks for any help.

kshegunov

Hi,
@mulfycrowh said in Extended Ascii Codes in QTextEdit:

the extended ASCII codes

What's this?

hskoglund

You mean ASCII codes > 127? you could do something like this:
ascii

mulfycrowh

Thank you. That's exactly what I meant !

mulfycrowh

Is it the only way to achieve this ?

hskoglund

Hmm you mean you don't like QChar? If you only want to use QString stuff, you could rewrite it (output looks the same) to:

    QString s;
    for (ushort u = 0; (u < 2048); ++u)
        s += QString::fromUtf16(&u,1);

    ui->textEdit->setText(s);

mulfycrowh

I tried this:

QString s;
s = "test ";
s += QChar(225);
ui.Test->setText(s);

It does display "test a", a with accent instead of "test ß".

kshegunov

Because the 225th char in the utf-16 table[1] is an á. QChar is a single character (2 bytes) in utf-16.
[1]: http://asecuritysite.com/coding/asc2

mulfycrowh

@kshegunov Thank you. So how can I manage it to get the character ß ?

kshegunov

You go to the wiki page and at the bottom you find what's the codepoint of said character in unicode. Then you google that and you get this nifty page. Finally you get the code for the character and insert in as an argument of QChar:

s += QChar(223);

mulfycrowh

I tried this:

		QString s;
		s = "test ";
		ushort u = 223;
		s += QString::fromUtf16(&u, 1);
		u = 147;
		s += QString::fromUtf16(&u, 1);
		ui.Test->setText(s);

ß is displayed but not the second one (").
Does it show that extended characters' display in QTextEdit is not possible ?

kshegunov

@mulfycrowh said in Extended Ascii Codes in QTextEdit:

Does it show that extended characters' display in QTextEdit is not possible ?

Firstly, there's no "extended characters", there are different encodings for representing text and Qt uses utf-16. Secondly, showing text in QTextEdit is possible and if the font you're using has a glyph for the character you're trying to display, then the character will be displayed. And finally, have you checked what is corresponding to the number 147 in the first utf-16 table I've posted as a link? I see no corresponding character for that code, so what are you expecting to see exactly? Where do you get 147?

mulfycrowh

I found this table:

alt text

and you get the characters with the matching decimal code

mulfycrowh

This post is deleted!

mulfycrowh

This post is deleted!

mulfycrowh

Explanation: I have a file with hex bytes equal to 93, 94, 96 ... and I would like to display the matching characters into a QTextEdit.

mulfycrowh

I found the solution in adding fromLatin1()

mulfycrowh

With fromLatin1(), it's better: I have no more losange with ? but, for example hex codes 93 and 94 are not displayed.

mulfycrowh

From Wikipedia, I copy and paste some text.
In this text I have the character (Hex 92) (') and the character (Hex E9) (é).
The second one is displayed. The first one is replaced by a chinese character.
Why ?

mulfycrowh

I think having found the perfect solution :)

I copied and pasted many articles from Wikipedia in French, English and German and it runs.
The solution is to use:

FromLocal8Bit()

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Extended Ascii Codes in QTextEdit