[Chicken-users] [ANN] Development snapshot 5.0.2 now available
Hi all! A new development snapshot (5.0.2) is now available: https://code.call-cc.org/dev-snapshots/2019/05/02/chicken-5.0.2.tar.gz This is the second snapshot in the 5.x release series. The most important change is that this version completes the previous change of how "qualified" symbols are read. Keywords were still encoded with a leading NUL byte, so if you tried to read or convert a string to a symbol which started with a NUL byte, it would be interned and seen as a keyword, even though it was a symbol. This caused problems when printing non-qualified symbols that contained NUL bytes. See https://bugs.call-cc.org/ticket/1576 for more information. Changing this representation is backwards-incompatible, which means that the git version of CHICKEN must now be built with a CHICKEN that's from this snapshot or newer. Related to this change is the fact that keywords (unlike "real" symbols) no longer have a plist. If you try to access a keyword's plist, it will raise a runtime error with condition types (exn type). Another backwards-incompatible change is that we reverted the change of how all "standard" continuations were allowed to accept multiple values for #1390. This caused a lot of trouble due to assumptions made throughout the compiler that standard continuations accept exactly one value, found out in #1601. This basically restores the behaviour to how it was in CHICKEN 4, so hopefully nobody has started to rely on this behaviour that was new to CHICKEN 5.0.0. An important bug fix is that the perm/* permission constants from the (chicken file posix) module have been fixed; they were all defined as the "usr" versions, even the "grp" and "oth" ones (#1602). There's a complete list of changes since the 5.0.1 release in the NEWS file: https://code.call-cc.org/dev-snapshots/2019/05/02/NEWS We would encourage all of our more adventurous users to try running their code under this snapshot. If you run into any problems with the new snapshot, please let us know. Regards, The CHICKEN Team signature.asc Description: PGP signature ___ Chicken-users mailing list Chicken-users@nongnu.org https://lists.nongnu.org/mailman/listinfo/chicken-users
Re: [Chicken-users] Anyone know why I can't split with an empty string in (chicken irregex)?
On Wed, May 01, 2019 at 11:18:31PM -0500, joshua wrote: > I can't seem to figure out how to split a string into individual characters. Hi Joshua, The canonical way to do that would be string->list. > I could swear this worked before, in Chicken 4. > I'm now using Chicken 5.0.0 running on Void Linux. > > #;1> (import (chicken irregex)) > ; loading /usr/lib/chicken/9/chicken.irregex.import.so ... > #;2> (irregex-split (irregex ",") "foo,bar,baz") > ("foo" "bar" "baz") > #;3> (irregex-split (irregex " ") "foo bar baz") > ("foo" "bar" "baz") > #;4> (irregex-split (irregex "") "foobarbaz") > () ; wat Hm, that is somewhat surprising. I checked irregex upstream, but as far as I can tell, this has never worked. In extremely old versions this would raise an internal error and in newer versions it returns the empty list. I can take a look but I'm not even sure what the correct behaviour is supposed to be. Cheers, Peter signature.asc Description: PGP signature ___ Chicken-users mailing list Chicken-users@nongnu.org https://lists.nongnu.org/mailman/listinfo/chicken-users
[Chicken-users] Anyone know why I can't split with an empty string in (chicken irregex)?
I can't seem to figure out how to split a string into individual characters. I could swear this worked before, in Chicken 4. I'm now using Chicken 5.0.0 running on Void Linux. #;1> (import (chicken irregex)) ; loading /usr/lib/chicken/9/chicken.irregex.import.so ... #;2> (irregex-split (irregex ",") "foo,bar,baz") ("foo" "bar" "baz") #;3> (irregex-split (irregex " ") "foo bar baz") ("foo" "bar" "baz") #;4> (irregex-split (irregex "") "foobarbaz") () ; wat #;5> (irregex-split (irregex "\\s*") "foobarbaz") () Any ideas? Thanks, joshua ___ Chicken-users mailing list Chicken-users@nongnu.org https://lists.nongnu.org/mailman/listinfo/chicken-users