On Tue, Jul 19, 2011 at 12:03 PM, Guillaume Marceau <gmarc...@gmail.com> wrote: > > > On Tue, Jul 19, 2011 at 12:03 PM, Robby Findler > <ro...@eecs.northwestern.edu> wrote: >> >> I see that the teaching language error messages now have things like >> this in them (where the . is an image literal): >> >> Welcome to DrRacket, version 5.1.2.3--2011-07-19(4b77a0fc/d) [3m]. >> Language: Beginning Student; memory limit: 128 MB. >> > (+ 1 (list .)) >> +: expects a number as 2nd argument, given (cons an image empty) >> I see that this is being done via regexps on the error message >> strings. This seems bad. >> >> Can we at least get some delimiters on there so it doesn't look like a >> malformed use of 'cons'? > > My goal is to have the actual image displayed there instead. "an image" was > just a quick replacement for #(struct:object:cache-image-snip% ...), which > is incomprehensible to students, and intimidating. > > I've push a fix that makes it read (cons (image) empty) instead. That should > hold us up until we get a proper image there.
Okay. I'll push a change to the error messages that hopefully demonstrates a better technique for implementing things like this than regexp munging of the error strings. Robby _________________________________________________ For list-related administrative tasks: http://lists.racket-lang.org/listinfo/dev
