ANSI artworks don't display correctly

[jcubic]

Steps to reproduce

try to display any of .ans files from fuel using:

iconv -f CP437 -t UTF-8 < file.ans

you can use this php script:

<?php
if (isset($_GET['file'])) {
    echo shell_exec(sprintf("iconv -f CP437 -t UTF-8 < %s", $_GET['file']));
}
?>

[jcubic]

I've used trick to handle \n\x1b[1A (found in some ANSI artwork) that is using enter and the move the cursor up so I've just removed this string entirely. moving cursor will not work for other cases.

[jcubic]

move forward was also simple just replace with N number of spaces.

[jcubic]

My code for handling [1A was actually wrong because the sequence was �[1A�[38C move up and right.

[jcubic]

Working ANSI artworks can be seen in this pen https://codepen.io/jcubic/pen/pxdxmN?editors=0010