Re: [External] : Use of an associated list with completing-read

[Stefan Monnier]

> Originally I had the associated list made by

"alist" is an abbreviation for "association list" rather than "associated
list".

>     ;; First  Version
>     (setq-local tema-lugar
>                 (append tema--lugar (list (cons lnum strg))))

This is the classic recipe for poor scaling performance since the above
operation takes time proportional to the length of the list, so if you
execute this N times (in a loop), the loop builds a list of length N but
takes time N² to do it.  When N is small, noone notices, and as it gets
large the performance starts to suck.


        Stefan