Test Unusual Line Terminators

[alexdima]

Test plan item for #96142

• anyOS @connor4312
• anyOS @sbatten

Complexity: 3

Create Issue

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There are some characters, like LS, PS or NEL, which are considered to be line terminators in certain languages, according to their spec:

char/seq	Unicode	JS	C#	HTML	Python	PHP	Java	YAML
CRLF	✅	✅	✅	✅	✅	✅	✅	✅
CR	✅	✅	✅	✅	✅	✅	✅	✅
LF	✅	✅	✅	✅	✅	✅	✅	✅
LS	✅	✅	✅					✅
PS	✅	✅	✅					✅
NEL	✅							✅
FF	✅
VT	✅

But VS Code only considers CRLF, CR or LF to be line terminators. This can become very problematic when VS Code attempts to communicate with a language server that uses a different set as line terminators (e.g. tsserver).

It would be very difficult to make VS Code have language based line terminators, so the current thinking is to try to get rid of these problematic characters, since, most likely, they were unintentional.

(There is a body of text below which contains such a character below).

Please check that:

• when pasting such text a prompt is shown
• when opening a file a prompt is shown
• in the prompt, it is explained (in short) what the problem is
• in the prompt, it is possible to ignore the problem
• in the prompt, it is possible to fix things
• there is a setting, editor.unusualLineTerminators, which can be configured to off to never do anything about these characters, to auto to remove them silently and to prompt (the default) which shows a confirmation prompt before doing anything.

var Input;
var lastInput;
var position =0;
var ftext = [
"Und", "dann", "eines"];
var opacityTitle=1;


document.addEventListener("keydown", function(event) {
 if (event.which >= 32 && event.which <= 122 && event.which != lastInput) {
    lastInput = event.which;
     advance();
 }
else if (event.which == 8) {
    lastInput = event.which;
    strikeOut();
}
});

document.addEventListener("keydown", function(event) {
    document.getElementById("fade").style.opacity = opacityTitle;
    opacityTitle -= 0.06;
   });

function advance(){
    document.getElementById("butt").innerHTML += "<p id=\"" + position + "\" class=\"word\">" + ftext[position] + "</p>";
   
    var nextWord = document.createElement("P");
    var textnode = document.createTextNode(ftext[position]);
    nextWord.appendChild(textnode);
    nextWord.classList.add("word");
    document.getElementById("butt").appendChild(nextWord);
    position++;
    var foo=3;
    var bar=4;

}

function strikeOut(){
    document.getElementById("butt").innerHTML = lastInput;

}