bracket coercion is too enthusiastic about racket-mode

[greghendershott]

Good point. I inherited this automatic matching closing-paren feature from Quack. In theory it ought to check for string literals, and comments, and so on.

Meanwhile, although you probably already know, a general-purpose work-around in Emacs for this sort of thing is to use C-q, e.g. C-q ].

[greghendershott]

Sorry this has been open so long. I have a change (it simply involves using in-string-p) such that your example behaves as you requested.

However after trying it for awhile today, I'm not sure it's a good idea for this to behave differently in strings. Using racket-mode you get accustomed to the idea you can simply hit ] to get the whichever of ], ), or } is correct. I'm accustomed to it happening inside strings, too, and more often than not it's desirable. To have it not happen only inside strings, was more confusing for me, not less.

Maybe your half-open interval example is relatively rare case? When it comes up, one can insert a literal ] using either C-q ] or C-u ].

TL;DR I'm thinking of closing this as "won't fix". Do you have any strong opinions about it, at this stage?

[greghendershott]

I'm weeding issues and noticed this is still open. I'm going to close it. However if you disagree please feel free to reopen it.