Display Error UTF-8 to ASCII

[Archie1978]

Hello,
I use the version 5.1.0 and I try to write into terminal. I have the "é".I have the character that is displayed in 2 characters but I can't find where is my error.
It is my code:

var terminal=new Terminal({
role: "server",
shell: "linux",

        useStyle: true,
        convertEol: true,
        screenKeys: true,
        cursorBlink: true,
        visualBell: true,
    });

terminal.write(atob("w6k6IGNvbW1hbmQgbm90IGZvdW5k"));

Display: é command not foun

From my terminal:
$ echo "w6k6IGNvbW1hbmQgbm90IGZvdW5k"|base64 -d|od -x
0000000 a9c3 203a 6f63 6d6d 6e61 2064 6f6e 2074
0000020 6f66 6e75 0064
0000025

Can you help me ?

Browser: Frefox linux 112.0 (64 bit)
OS ubuntu
Env: fr-FR.utf8

[jerch]

atob creates a "bytestring", where every byte maps to a character in [0..255], thus multibyte chars of the original UTF-8 string are not fused into higher codepoints yet.

term.write supports as input:

• UTF-8 byte sequences given as Uint8Array, or
• JS unicode string (interpreted as UTF-16)

(See https://xtermjs.org/docs/guides/encoding/ for encoding details.)

Now putting this together - you gonna need to convert the bytestring into an Uint8Array instance first, then either write that directly to the terminal or create a proper JS unicode string before writing:

// convert to byte sequence
const sdata = atob("w6k6IGNvbW1hbmQgbm90IGZvdW5k");
const bytes = new Uint8Array(sdata.length);
for (let i = 0; i < bytes.length; ++i) {
  bytes[i] = sdata.charCodeAt(i);
}

// write bytes to terminal
term.write(bytes);

// write string to terminal
const td = new TextDecoder();
const s = td.decode(bytes);  // s is a normal JS string now
term.write(s);

[Archie1978]

ah, yes I have a little trouble with its binary in javascript.

Thanks you