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Update NEWS for merge to master

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This removes the following "not yet implemented" changes, which are
therefore left for future work:

  * (internal) the positional arguments to define-external-format/variable
    width have been simplified and converted to keyword arguments
    - unit size / minimum read size / advance size
    - character read size
    - input size expression
    - ...
  * (internal) construct strict variants of CR and CRLF external formats:
    - CR: input of LF signals error, output of #\Return signals error
    - CRLF: input of LF signals error
  * bug fix: the character-decoding-error condition signalled by octet
    conversion routines now provides access to a copy of the subsequence
    that triggered the error.
  * enhancement: the character-decoding-error condition has readers for the
    the number of octets that will be skipped if the USE-VALUE restart is
    invoked.
  * enhancement: SB-EXT:MAKE-OCTETS-INPUT-STREAM,
    SB-EXT:WITH-INPUT-FROM-OCTETS, SB-EXT:MAKE-OCTETS-OUTPUT-STREAM and
    SB-EXT:WITH-OUTPUT-TO-OCTETS are now provided, with their behavior
    essentially analogous to the standard STRING equivalents.
  * enhancement: octet and string input and output streams can be bivalent if
    they are created with the :ELEMENT-TYPE :DEFAULT (non-standard) keyword
    argument.  If they are, their external format for conversions between
    characters and octets is provided by the :EXTERNAL-FORMAT keyword argument
    at their creation.
This commit is contained in:
Christophe Rhodes 2023-11-01 20:41:33 +00:00
parent 099944850d
commit 9aa9104ff5
1 changed files with 10 additions and 36 deletions
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46
NEWS
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@ -1,32 +1,6 @@
;;;; -*- coding: utf-8; fill-column: 78 -*-
changes not yet implemented in the external-format-line-endings branch:
* (internal) the positional arguments to define-external-format/variable
width have been simplified and converted to keyword arguments
- unit size / minimum read size / advance size
- character read size
- input size expression
- ...
* (internal) construct strict variants of CR and CRLF external formats:
- CR: input of LF signals error, output of #\Return signals error
- CRLF: input of LF signals error
* bug fix: the character-decoding-error condition signalled by octet
conversion routines now provides access to a copy of the subsequence
that triggered the error.
* enhancement: the character-decoding-error condition has readers for the
the number of octets that will be skipped if the USE-VALUE restart is
invoked.
* enhancement: SB-EXT:MAKE-OCTETS-INPUT-STREAM,
SB-EXT:WITH-INPUT-FROM-OCTETS, SB-EXT:MAKE-OCTETS-OUTPUT-STREAM and
SB-EXT:WITH-OUTPUT-TO-OCTETS are now provided, with their behavior
essentially analogous to the standard STRING equivalents.
* enhancement: octet and string input and output streams can be bivalent if
they are created with the :ELEMENT-TYPE :DEFAULT (non-standard) keyword
argument. If they are, their external format for conversions between
characters and octets is provided by the :EXTERNAL-FORMAT keyword argument
at their creation.
changes in the external-format-line-endings branch:
changes relative to sbcl-2.3.10:
* minor incompatible change: streams with an external-format specified with
:REPLACEMENT will use their replacement data once per stream unit that
causes a decoding error (rather than, in some cases, once for a sequence
@ -34,13 +8,20 @@ changes in the external-format-line-endings branch:
external-format).
* minor incompatible change: external-format designators with unsupported or
unrecognized options now signal an error when used.
* enhancement: external formats now support newline variants.
* enhancement: During generic function dispatch, for a generic function
using standard- or short-method-combination, if there are no applicable
primary methods the system will call the generic function
SB-PCL:NO-PRIMARY-METHOD, whose default behaviour is to signal an error.
Users may define methods on this generic function.
* enhancement: external formats for unibyte encodings and utf-8 now support
newline variants.
* enhancement: character decoding and encoding errors signalled by stream or
octet functions now provide a USE-VALUE restart for handlers to provide
replacement input or output.
* bug fix: OCTETS-TO-STRING using unibyte external formats with unallocated
codepoints (e.g. iso-8859-3) correctly signal or use replacements rather
than taking bits from NIL and converting them to characters.
than taking bits from the address of NIL and converting those bits to
a character.
* bug fix: FILE-STRING-LENGTH now returns NIL if the input datum is not
encodable in the stream's external format.
* bug fix: table-based multibyte external formats (EUC-JP, Shift-JIS, GBK)
@ -62,13 +43,6 @@ changes in the external-format-line-endings branch:
OCTETS-TO-STRING is a compile-time constant, the external format is
resolved at load time rather than on each call.
changes relative to sbcl-2.3.10:
* enhancement: During generic function dispatch, for a generic function
using standard- or short-method-combination, if there are no applicable
primary methods the system will call the generic function
SB-PCL:NO-PRIMARY-METHOD, whose default behaviour is to signal an error.
Users may define methods on this generic function.
changes in sbcl-2.3.10 relative to sbcl-2.3.9:
* enhancement: The compiler now allows stack allocating vectors of any size
on all safety levels, not just those which it can prove are of sub-page