mirror of https://github.com/dirtbags/moth.git
72 lines
1.3 KiB
JavaScript
72 lines
1.3 KiB
JavaScript
function tx(element, text, bps) {
|
|
var drawTimer;
|
|
|
|
var sp = false;
|
|
function draw() {
|
|
c = text[0];
|
|
if ((c == " ") || (c == "\n")) {
|
|
sp = true;
|
|
c = " ";
|
|
} else if (sp) {
|
|
c = " " + c;
|
|
sp = false;
|
|
}
|
|
element.textContent += c;
|
|
text = text.substr(1);
|
|
if (text == "") {
|
|
clearInterval(drawTimer);
|
|
return;
|
|
}
|
|
}
|
|
|
|
// N81 uses 1 stop bit, and 1 parity bit.
|
|
// That works out to exactly 10 bits per byte.
|
|
msec = 10000 / bps;
|
|
|
|
drawTimer = setInterval(draw, msec);
|
|
draw();
|
|
}
|
|
|
|
function Terminal(target, bps) {
|
|
bps = bps || 1200;
|
|
|
|
var outq = [];
|
|
var outTimer;
|
|
|
|
function drawElement() {
|
|
var next = outq.shift();
|
|
var out = document.createElement(next[0]);
|
|
|
|
target.appendChild(out);
|
|
tx(out, next[1], bps);
|
|
|
|
if (outq.length == 0) {
|
|
clearInterval(outTimer);
|
|
}
|
|
}
|
|
|
|
this.enqueue = function(tag, txt) {
|
|
outq.push([tag, txt]);
|
|
if (! outTimer) {
|
|
outTimer = setInterval(drawElement, 150);
|
|
}
|
|
}
|
|
|
|
this.par = function(txt) {
|
|
this.enqueue("p", txt);
|
|
}
|
|
|
|
this.pre = function(txt) {
|
|
this.enqueue("pre", txt);
|
|
}
|
|
}
|
|
|
|
//
|
|
// Usage:
|
|
//
|
|
// var e = Terminal(document.getElementById("output"));
|
|
// e.output("This is a paragraph. It has sentences.");
|
|
// e.output("This is a second paragraph.");
|
|
//
|
|
|