[racket] off-by-1 pixel error in 2htdp/image

2012-12-16 Thread D Herring
Hi all, First off, please forgive my coding style -- that is something to clean up after the functionality is working. Also, please let me know if there's a better way to attach code or screenshots. I was writing a bit of code to generate a diagram, and bumped into an off-by-one error. Not

Re: [racket] Saved continuations

2012-09-04 Thread D Herring
On 09/04/2012 09:11 PM, Harry Spier wrote: Is it possible in Racket to make a kind of copy of a saved continuation with its environment at the time it was saved, so that no mutation of variables between the time the copy of the saved continuation was made and the time the copy is invoked can poss

Re: [racket] newbie drracket usage questions

2012-07-31 Thread D Herring
On 07/31/2012 03:45 AM, Pierpaolo Bernardi wrote: I don't know about the return data structures part, but, if finding manually the definition of functions suffices you, you can "check syntax" and then right clicking on a symbol offers the "jump to definition" command. Thanks to everyone for th

Re: [racket] newbie drracket usage questions

2012-07-30 Thread D Herring
On 07/31/2012 01:15 AM, Richard Cleis wrote: On Jul 30, 2012, at 10:53 PM, D Herring wrote: Hi, How would one accomplish the following in DrRacket? "apropos" (CL/shell) or "lookfor" (Matlab) Given a search string, return a list of symbols with matching name or documen

[racket] newbie drracket usage questions

2012-07-30 Thread D Herring
Hi, How would one accomplish the following in DrRacket? "apropos" (CL/shell) or "lookfor" (Matlab) Given a search string, return a list of symbols with matching name or documentation. I found that XRepl has the ,apropos command; but I haven't figured out an easy way to invoke it in DrRacket.

Re: [racket] very general reliability of old stuff question

2011-05-20 Thread D Herring
On 05/20/2011 10:00 AM, Neil Van Dyke wrote: If someone came to you and said, "We're using PLT 4.2.5 with CGC and JIT, and we are wondering whether reliability would be improved by moving to Racket 5.x and/or moving to 3m and/or disabling 4.2.5's JIT," what would you say? Details... A big instal

Re: [racket] policy on providing version for ffi-lib

2011-05-04 Thread D Herring
On 05/02/2011 07:20 PM, Danny Yoo wrote: I notice that Sqlite's library is usually installed as 'libsqlite3.so.0' on a user's system, but the sqlite PLaneT package: ... appears to assume that the library is named libsqlite3.so. Some of the major linux distributions (e.g. RedHat/Centos) have b