ANSI-Escape.js

A Javascript library to render text with ANSI escape sequences using HTML and CSS.

To force a command to use escape sequences (even without an interactive shell) use, depending on your OS:

• script -q /dev/null ls -alG or

• script -qec "ls -alG" /dev/null

  (to save the output to a file: replace /dev/null with a filename)

Usage

/* 
 *  `parseInteractive` removes artifacts caused by the interactive
 *  rewriting of the terminal window by some applications.
 */
function ansiToHTML(input, parseInteractive=true){
    ....
    return parsedHTMLCode;
}


const cmdOutput = "... some text with escape sequences";
const parsedOutput = ansiToHTML(cmdOutput);
document.querySelector(".console > code > pre").innerHTML = parsedOutput;

Supported features

• color: 8/16 mode
• style: bold/underlined/dim/hidden
• corresponding reset codes

Not (yet) supported:

• color: 88/256 mode
• style: blink/reversed
• (unsupported codes are also logged to the console)

For detailed information see the ANSI_Styles object in ANSI-Escape.js.