add method
Add a new line to the scrollback buffer. This would normally happen when the user finishes typing/editing the line and taps the 'enter' key.
Implementation
void add(String buffer) {
// don't add blank line to scrollback history if !recordBlanks
if (buffer == '' && !recordBlanks) {
return;
}
lineList.add(buffer);
lineIndex = lineList.length;
currentLineBuffer = null;
}