[racket] module-compiled-exports

The documentation for module-compiled-exports says, "beware ... that value bindings re-exported through a rename transformer are in the syntax list instead of the value list." Is it possible to identify which symbols in the syntax list represent value bindings that were re-exported through a renam

[racket] the Numbers grammar

I've been studying the numbers grammar in section 1.3.3 of the Racket reference and I think I've spotted a few mistakes: 1. allows the imaginary part of an exact complex number to be signed given that an exact rational may be signed: ::= [] ::= / ::=i The rule allows exact complex num

Re: [racket] problem with Port Events and make-limited-input-port

it repo, so it will be fixed in the next > nightly build. > > Thanks for the report and test case! > > At Fri, 17 Jun 2011 17:33:56 +0100, milo arvidsson wrote: >> (I'm using the latest build: mz-bin-i386-win32; version 5.1.1.6, >> updated Friday, June 17 2011, 03

[racket] problem with Port Events and make-limited-input-port

(I'm using the latest build: mz-bin-i386-win32; version 5.1.1.6, updated Friday, June 17 2011, 03:50 EDT) I've written versions of the following program using limited file, string, and pipe ports with read-bytes-line-evt, read-char-evt, read-line-evt, read-bytes-evt, read-string-evt, and regexp-ma

[racket] make-limited-input-port and Port Events

I'm getting contract violations when I use 'make-limited-input-port' with port events. For example, this program: #lang racket/base (require racket/port) (define in (open-input-string "12345\n")) (sync (read-line-evt (make-limited-input-port in 512))) fails like this: contract violation: expecte

[racket] regexp-match-evt and file-position

In the following program, (sync (regexp-match-evt #rx"^..." in)) returns '(#"123") but (file-position in) returns 0 instead of 3: #lang racket/base (require racket/port) (define-values (in out) (make-pipe)) (display "12345" out) (sync (regexp-match-evt #rx"^..." in)) (file-position in) Tha