At Fri, 19 Jun 2009 11:23:37 +0800, Chongkai Zhu wrote: > I am writing a scribble document and part of the source code is: > > @(define my-eval > (call-with-trusted-sandbox-configuration > (lambda () > (parameterize ((sandbox-output 'string) > (sandbox-error-output 'string)) > (make-evaluator 'scheme/base #:requires > (list (if gui? > 'scheme/gui/base > 'scheme/base))))))) > > @examples[#:eval my-eval > #|code that relies on scheme/gui/base|#] > > @(kill-evaluator my-eval) > > I put the scrbl file into a .plt file, and then install it inside > DrScheme (which I assume will make gui available). > But the generated doc suggests otherwise: > > The "@(define" part leaves nothing in the html file, which is right. > > The "@examples" part generates, after the input: > > reference to an identifier before its definition: > > image in module: 'program > > > in red, which I assume is caused because 'scheme/gui/base is not > required. Is this a bug, or did I do something wrong?
`scheme/gui/base' is not available when setup-plt runs. The "Quick" document works around that by having two modes controlled through an environment variable: one where images are rendered to PNGs (to be run when scheme/gui' is available), and another that just uses the PNGs (to be used by setup-plt). > More weirdly, after that the html file contains a line: > > #<void> > > It seems to be the result of "@(kill-evaluator", but shouldn't that not > be printed? The `scribble/doc' and `scribble/manual' languages do not currently ignore void results. Probably they should. Meanwhile, the `define' form didn't generate output because `defines' are specially lifted out of a document (i.e., it's not because `define' produces void). _________________________________________________ For list-related administrative tasks: http://list.cs.brown.edu/mailman/listinfo/plt-dev
