I would like to create a package to enable users to toggle a "focus mode" feature like the one in the iA Writer app: http://www.iawriter.com/mac/.
Basically, the feature highlights the current sentence (the app is for writing prose, not code) by "dimming" all other text.
I know I'll need to use some method of regexp-ing around the cursor to find the last and previous stop characters that denote the end of a sentence (e.g !?.), although there may be some trickiness involved in cases such as:
"We left the U.S and went to St. Lucia."
where periods are used to abbreviate instead of delimit a sentence.
I have no idea how to change how Sublime displays a particular section of displayed text.
I have never written a Sublime package, but have plenty of development experience.
I love sublime and am excited to start contributing to the community.
Could people help point me in the right direction?
Any feedback/advice on how to go about doing this would be greatly appreciated.