Function handle_cmd

examples/js/repl.js:1290–1331

(expr)

    }

    function handle_cmd(expr) {
        var colorstate, cmd;

        if (expr === null) {
            expr = "";
            return;
        }
        if (expr === "?") {
            help();
            return;
        }
        cmd = extract_directive(expr);
        if (cmd.length > 0) {
            if (!handle_directive(cmd, expr))
                return;
            expr = expr.substring(cmd.length + 1);
        }
        if (expr === "")
            return;

        if (mexpr)
            expr = mexpr + '\n' + expr;
        colorstate = colorize_js(expr);
        pstate = colorstate[0];
        level = colorstate[1];
        if (pstate) {
            mexpr = expr;
            return;
        }
        mexpr = "";

        if (has_bignum) {
            BigFloatEnv.setPrec(eval_and_print.bind(null, expr),
                                prec, expBits);
        } else {
            eval_and_print(expr);
        }
        level = 0;

        /* run the garbage collector after each command */
        std.gc();
    }

    function colorize_js(str) {
        var i, c, start, n = str.length;