Dan Feltey

Other equality predicates in scc

1

The `scc` function seems to allow a user specified equality predicate to be passed in as an optional second argument: https://github.com/stchang/graph/blob/master/graph/graph-fns-basic.rkt#L414 ``` (define (scc G [=fn #f]) (define eq (or...

Binding forms parsing error

4

This language definition: ``` (define-language lc (e ::= (list e ...) x) (x ::= variable-not-otherwise-mentioned) #:binding-forms (list (list x ...) ...) #:exports nothing) ``` Produces the error: redex/redex-lib/redex/private/binding-forms-compiler.rkt:36:39: define-language: Same...

Panels/Frames do not respond to scrolling

5

The following program creates a top-level frame% instance containing a vertical panel. ``` #lang racket (require racket/gui) (define the-frame (new frame% [label "a frame"] [width 100] [height 200])) (define the-panel...

Add plt-title-background to slideshow

2

This pull request adds the plt-title-background slide to slideshow to avoid dependencies on unstable in slideshow presentations using the pict.