Problem & Fix for tab character...

[AzzaAzza69]

As you manipulate the string via code in the check_tab function, the ability to undo (ctrl+z) is lost...can I suggest instead:

function check_tab(element, event) {
let code = element.value;
if(event.key == "Tab") {
/* Tab key pressed */
event.preventDefault(); // stop normal
document.execCommand('insertText', false, "\t");
update(element.value); // Update text to include indent
}
}

[WebCoder49]

Thank you for this; it look very useful.
I am afraid that I am very busy at the moment so it is unlikely I will be able to address this until Monday 27/03.

[mitchcapper]

for master removing

code-input/plugins/indent.js

Lines 29 to 37 in 8279834

	let before_selection = code.slice(0, input_element.selectionStart); // text before tab
	let after_selection = code.slice(input_element.selectionEnd, input_element.value.length); // text after tab
	let cursor_pos = input_element.selectionEnd + 1; // where cursor moves after tab - moving forward by 1 char to after tab
	input_element.value = before_selection + "\t" + after_selection; // add tab char
	// move cursor
	input_element.selectionStart = cursor_pos;
	input_element.selectionEnd = cursor_pos;

to
document.execCommand('insertText', false, "\t");
would seem to replicate @AzzaAzza69 fix.

[WebCoder49]

I have released this in version 1.2.4.