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