function formatBufferUncolored()

in interface.js [197:256]

• 21 lines of code
• 10 McCabe index (conditional complexity)

function formatBufferUncolored(err, options) {
    // istanbul ignore else
    if (!hex) {
        return err.buffer.toString('hex');
    }

    options = options || {};

    var hasOffset = !(err.offset === undefined || err.offset === null);
    var hasEnd = !(err.endOffset === undefined || err.endOffset === null);
    var markStart = options.markStart || '>';
    var markEnd = options.markEnd || '<';
    var accum = 0;

    var opts = options.hexerOptions ? Object.create(options.hexerOptions) : {};
    if (hasOffset) {
        opts.groupSeparator = '';
        if (hasEnd) {
            opts.decorateHexen = decorateRangedError;
        } else {
            opts.decorateHexen = decorateError;
        }
    }
    return hex(err.buffer, opts);

    // TODO: suspected broken across lines, should either test and complete or
    // use some sort of alternate notation such as interstitial lines
    function decorateRangedError(totalOffset, screenOffset, hexen) {
        var s;
        if (totalOffset === err.offset) {
            accum = 1;
            s = markStart + hexen;
            if (totalOffset === err.endOffset-1) {
                s += markEnd;
                accum = 0;
            } else {
                s = ' ' + s;
            }
            return s;
        } else if (totalOffset === err.endOffset-1) {
            s = hexen + markEnd;
            while (accum-- > 0) s += ' ';
            accum = 0;
            return s;
        } else if (accum) {
            accum += 2;
            return hexen;
        } else {
            return ' ' + hexen + ' ';
        }
    }

    function decorateError(totalOffset, screenOffset, hexen) {
        if (totalOffset === err.offset) {
            return markStart + hexen + markEnd;
        } else {
            return ' ' + hexen + ' ';
        }
    }
}