I think the problem is with the Matrix snip class, which has only a GUI-compatible implementation and not a non-GUI implementation.
To fix this pronlem, the Matrix snip class should be changed to set a different snip-class name to support non-GUI mode. In addition, to support old files, the old snip-class name #"(lib \"matrix.ss\" \"htdp\")" could be hardwired into the "wxme" collection, which handles snip reading in non-GUI mode. At Fri, 20 May 2011 11:45:53 -0400, Danny Yoo wrote: > I'm using syntax/modcode, and am running across an error that I don't > understand yet. Here's test code to demonstrate: > > ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; > #lang racket > > (require syntax/modcode) > > (define collects-dir > (normalize-path > (let ([p (find-system-path 'collects-dir)]) > (cond > [(relative-path? p) > (find-executable-path (find-system-path 'exec-file) > (find-system-path 'collects-dir))] > [else > p])))) > > (void > (parameterize ([current-namespace (make-base-namespace)]) > (get-module-code (build-path collects-dir "htdp" "tests" > "matrix-client.rkt")))) > ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; > > > I see the following error: > > ########################################################################## > read-syntax: cannot load snip-class reader: #"(lib \"matrix.ss\" \"htdp\")" > > === context === > /research/plt/software/racket/5.1.1/std/collects/wxme/wxme.rkt:382:2: > find-class > /research/plt/software/racket/5.1.1/std/collects/wxme/wxme.rkt:208:2: > read-snip > /research/plt/software/racket/5.1.1/std/collects/wxme/wxme.rkt:617:4: > read-proc > /research/plt/software/racket/5.1.1/std/collects/mzlib/port.rkt:167:4: > do-read-it > /research/plt/software/racket/5.1.1/std/collects/lang/htdp-reader.rkt:13:4: > loop > /research/plt/software/racket/5.1.1/std/collects/lang/htdp-reader.rkt:13:4: > loop > /research/plt/software/racket/5.1.1/std/collects/wxme/wxme.rkt:695:2: > wxme-read-syntax > /research/plt/software/racket/5.1.1/std/collects/syntax/modcode.rkt:47:8 > /research/plt/software/racket/5.1.1/std/collects/syntax/modcode.rkt:79:2: core > ########################################################################## > > > Am I misusing it? > _________________________________________________ > For list-related administrative tasks: > http://lists.racket-lang.org/listinfo/users _________________________________________________ For list-related administrative tasks: http://lists.racket-lang.org/listinfo/users
