Thanks for that, Matthew. Unfortunately, when I try that, I get a new error:
namespace-attach-module: a different instance of the same module is already in the destination namespace module name: "/usr/share/racket/collects/racket/stxparam-exptime.rkt" On Tue, Jan 27, 2015 at 2:03 PM, Matthew Flatt <[email protected]> wrote: > The `#:requires` option of `make-evaluator` requires the named modules > in the sandbox's namespace, but the module instances are distinct from > any instances in the original namespace. > > To attach the original namespace's instances to the sandbox's > namespace, use the `sandbox-namespace-specs` parameter: > > (define safe-eval > (parameterize ([sandbox-namespace-specs > (append (sandbox-namespace-specs) > '(scribble/manual scribble/racket))]) > (make-evaluator 'racket/base > #:requires '(scribble/manual scribble/racket)))) > > At Tue, 27 Jan 2015 13:22:01 -0700, Lucas Paul wrote: >> Hi. >> >> I want to evaluate some scribble things (in a sandbox) and then >> combine them with other scribble things I already have lying around. >> But I'm running into a problem. >> >> If I, for example, make a nicely formatted (racket) code block in a >> sandbox, and then put it in a (para) outside of that sandbox, the >> world explodes. Here is a minimal example: >> >> #lang racket >> >> (require racket/sandbox >> scribble/manual) >> >> (define safe-eval >> (make-evaluator 'racket/base #:requires '(scribble/manual >> scribble/racket))) >> >> (pretty-print (racket foo)) ; Gives one output >> (pretty-print (safe-eval '(racket foo))) ; Gives a slightly DIFFERENT output >> >> (para (racket foo)) ; Finishes happily >> (para (safe-eval '(racket foo))) ; Error >> >> ; end >> >> This is the error I get: >> >> para: contract violation >> expected: pre-content? >> given: (cached-element (style "RktSym" (list 'tt-chars (css-addition >> '(collects #"scribble" #"racket.css")) (tex-addition '(collects >> #"scribble" #"racket.tex")))) "foo" (vector (style "RktSym" (list >> 'tt-chars (css-addition '(collects #"scribble" #"racket... >> in: an element of >> the rest argument of >> (->* >> () >> (#:style (or/c style? string? symbol? #f)) >> #:rest >> (listof pre-content?) >> paragraph?) >> contract from: >> <pkgs>/scribble-lib/scribble/base.rkt >> blaming: anonymous-module >> (assuming the contract is correct) >> at: <pkgs>/scribble-lib/scribble/base.rkt:337.2 >> >> What is going on? Why does the same piece of code have two different >> results depending on where it's executing? And most importantly, is >> there a way for me to get this to work the way I /want/? >> >> - Lucas Paul >> ____________________ >> Racket Users list: >> http://lists.racket-lang.org/users ____________________ Racket Users list: http://lists.racket-lang.org/users
