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21790: initial attempt at documenting 4.3 release

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commit 3fd42c46580ec478c2bfd3ac5746c0a5129ad60b 1 parent dcc48ad
Peter Stephenson authored
Showing with 56 additions and 3 deletions.
  1. +5 −0 ChangeLog
  2. +21 −0 INSTALL
  3. +29 −2 NEWS
  4. +1 −1  README
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5 ChangeLog
@@ -1,3 +1,8 @@
+2005-10-03 Peter Stephenson <pws@csr.com>
+
+ * 21790: INSTALL, NEWS, README: add some documentation about
+ the 4.3 release.
+
2005-10-02 Peter Stephenson <pws@pwstephenson.fsnet.co.uk>
* 21802: Src/Zle/complist.c, Src/Zle/compmatch.c,
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21 INSTALL
@@ -235,6 +235,27 @@ as make can become confused by build files created in the source directories.
CONFIGURATION OPTIONS
=====================
+Multibyte Character Support
+---------------------------
+
+Support for multibyte character sets that extend ASCII, such as UTF-8, is
+under development but the code in the line editor is sufficiently stable to
+be turned on by default in environments that provide full ISO 10646 support
+including the preprocessor definition __STDC_ISO_10646__.
+
+The support can be explicitly enabled or disable with --enable-multibyte or
+--disable-multibyte. Reports of systems where multibyte support was not
+enabled by default but --enable-multibyte resulted in a usable shell would
+be appreciated. The developers are not aware of any need to use
+--disable-multibyte and this should be reported as a bug.
+
+The main shell is not yet aware of multibyte characters, so for example the
+length of a scalar parameter will return the number of bytes, not
+characters, and pattern tests likewise treat single bytes as if they were
+characters. This means that pattern tests such as ? and [[:alpha:]] do not
+work correctly with characters in multibyte character sets beyond the ASCII
+subset.
+
Memory Routines
---------------
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31 NEWS
@@ -2,8 +2,35 @@
CHANGES FROM PREVIOUS VERSIONS OF ZSH
-------------------------------------
-Changes since zsh version 4.2.0
--------------------------------
+Major changes between versions 4.2 and 4.3
+------------------------------------------
+
+- There is support for multibyte character sets in the line editor,
+ though not the main shell. See Multibyte Character Support in INSTALL.
+
+- New option PROMPT_SP, on by default, to work around the problem that the
+ line editor can overwrite output with no newline at the end.
+
+- New option HIST_SAVE_BY_COPY (on by default): history is saved by
+ copying and renaming instead of directly overwriting.
+
+- New redirection syntax e.g. {myfd}>file opens a new file descriptor
+ and stores the number in $myfd, so that >&$myfd will work. Chosen
+ not to break existing code.
+
+- New Posix-style zsh-specific tests [[:IDENT:]], [[:IFS:]],
+ [[:IFSSPACE:]], [[:WORD:]] test if character can appear in identifier,
+ is an IFS character, is an IFS whitespace character, or is considered
+ as part of a word (is alphanumeric or appears in $WORDCHARS). Note
+ the pattern code doesn't yet handle multibyte characters.
+
+- The idiom =(<<<...) is optimised so that the shell internally turns
+ the ... into the contents of a file whose name is then substituted.
+
+- As always, many enhancements to completion functions.
+
+Changes in 4.2 since version 4.2.0
+----------------------------------
- The autoload and related builtins take options -k and -z to indicate
ksh or zsh autoloading style for given functions, making it possible
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2  README
@@ -5,7 +5,7 @@ THE Z SHELL (ZSH)
Version
-------
-This is a version under development subsequent to zsh 4.2.3.
+This is development code before the release of version 4.3.1.
Installing Zsh
--------------
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