Searching

Now that we can prompt the user for input, and we can apply highlight to the text, we could give our editor the capability to search for words in the file.

To be able to do this, we'll need several changes. We defined the incsearch highlight, so we don't need to do that.

Instead, we must change how promptForInput() works. Until now, it only prompted a string from the user and returned it, without doing anything in between.

Now instead we want that every time the user types a character, the currently typed pattern will be searched, and if found it will be given a highlight on the screen.