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| author | Kaz Kylheku <kaz@kylheku.com> | 2022-05-24 07:36:17 -0700 |
|---|---|---|
| committer | Kaz Kylheku <kaz@kylheku.com> | 2022-05-24 07:36:17 -0700 |
| commit | 3c42ed2d6753edbc52cff72d1524e5202f996d7d (patch) | |
| tree | edf427aeb0e9b955baf4310dc55bf01851c0dc39 /RELNOTES | |
| parent | 7b39d691a0fa1cffb2553237318c224d91bb9407 (diff) | |
| download | txr-3c42ed2d6753edbc52cff72d1524e5202f996d7d.tar.gz txr-3c42ed2d6753edbc52cff72d1524e5202f996d7d.tar.bz2 txr-3c42ed2d6753edbc52cff72d1524e5202f996d7d.zip | |
Version 276.txr-276
* RELNOTES: Updated.
* configure (txr_ver): Bumped version.
* stdlib/ver.tl (lib-version): Bumped.
* txr.1: Bumped version and date.
* txr.vim, tl.vim: Regenerated.
* protsym.c: Likewise.
Diffstat (limited to 'RELNOTES')
| -rw-r--r-- | RELNOTES | 84 |
1 files changed, 84 insertions, 0 deletions
@@ -1,3 +1,87 @@ + TXR 276 + 2022-05-24 + + + Features + + - Syntax: + - printer: now nicely prints (a . @b) rather than (a sys:var b) + and (a . @(e)) rather than (a sys:expr (e)). + + - Macros: + - Subtle new expansion rule allows for more thorough expansion + in situations when a macro and function are defined for the + same symbol: + - When a macro expands into the same-named function call, + and that function call's arguments undergo expansion, + the result is tried again as the original macro. + + - Command line: + - New command line option --compile allows compile-update-file + to be invoked more directly, without having to encode a Lisp + expression as a command argument. + - New command line option --in-package allows a package switch + to take place within the command line. This is used by the + compilation of stdlib, which takes place in the sys package. + - In relation to command line: the message during the handling + of an error exception encouraging the --backtrace option to + be used is removed. This was a nuisance, and appeared in + deployed programs that don't offer such an option. + + - Lib: + - split-str now has a count parameter, to limit how many + pieces are produced. When the split doesn't use the entire + string, the remainder appears as a piece. This improvement + was suggested by Paul. A. Patience in January 2022. + - The spl function as well as tok-str could use this too; + that is postponed to another release. + - New trim-path-seps function for removing trailing path + separators from a path. + + - FFI: + - 64 bit bitfields are now supported. this means integer types which + are 64 bits wide can now be be used as the basis of a bitfield, + which can therefore be specified as 0 to 64 bits wide. + - align operator now only increases alignment. + - New pack operator for packing. + - (pack (struct s ...)) syntax allows for all members of + a struct to be packed. + - The endian types like be-uint32 or le-uint16 can now be used as bit + fields. + - The layout takes place like on the machine of that endian; + e.g. be-uint32 bitfields are filled most-significant-bit + first. + - If a bitfield follows a member of opposite endian, it starts a + new storage cell in a fresh byte. + + Bugs + + - lambda-match: issue with variadic pattern. + - FFI: bug: all unions were marked as incomplete types. + - FFI: bug: empty structs/unions had an alignment of 0; should be 1. + - FFI: bug: null terminated strings didn't work as flexible arrays. + - copy-path-rec: didn't like trailing slash on source path. + - FFI: alignment bug: arrays without a dimension were all treated + as having pointer alignment, 4 or 8 byte, rather than inheriting + alignment from the element type. + - FFI: support for bitfields in the face of alignment and packing. + - FFI: bug in internal type cloning function, leaving the type + descriptor structure pointing to the original type as its "self", + manifesting itself as a wrong result from something like + (alignof foo.bar) when foo.bar has a cloned type (e.g. by + the align operator). + - UTF8: Incredibly, a bug was found: the UTF-8 decoder was silently + eating an incomplete character at the end of the input, instead + of treating the incomplete sequence as bad bytes, to be mapped + into the U+DCxx range. Thus there were binary strings which + were not preserved in the decode -> encode round trip. + - OOP: Fixed an out-of-bounds stack access in the struct type + initialization code which deals with suppressing redundant + initializations of repeated multiple-inheritance bases. + This more readily affects big-endian systems: showed upon PPC64. + + + TXR 275 2022-05-10 |