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unposted: add notes to NEWS on (Z) parameter flag

This commit is contained in:
Peter Stephenson 2010-12-16 12:11:02 +00:00
parent 750ec0fe1b
commit 796501f440
2 changed files with 12 additions and 3 deletions
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4
ChangeLog
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@ -1,5 +1,7 @@
2010-12-16 Peter Stephenson <pws@csr.com>
* unposted: NEWS: add notes on (Z) parameter flag.
* unposted: README, Config/version.mk, Etc/FAQ.yo,
Completion/Debian/Command/.distfiles: update for 4.3.10-test-3.
@ -13968,5 +13970,5 @@
*****************************************************
* This is used by the shell to define $ZSH_PATCHLEVEL
* $Revision: 1.5153 $
* $Revision: 1.5154 $
*****************************************************

11
NEWS
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@ -26,6 +26,13 @@ The (D) flag in parameter expansion abbreviates directories in the
substituted value. The (q-) flag does minimal shell quotation of arguments
for maximum human readability of the result.
The (Z) flag in parameter expansion is an enhanced version of the (z)
flag that takes an argument indicating how the string to be split
is treated. (Z:c:) parses comments as strings; (Z:C:) parses comments
and strips them; (Z:n:) treats newlines as ordinary whitespace: (z)
has always treated unquoted newlines as shell delimiters and turned them
into semicolons, though this was not previously documented.
Numeric expansion with braces has been extended so that a step may be
given, as in {3..9..2}. The step may be negative as may the start and
end of the range (this is also new).
@ -91,8 +98,8 @@ The POSIX_JOBS option already referred to has various other
compatibility enchancements.
The new shell option POSIX_STRINGS makes a null character in $'...'
expansion terminate the string. This is not particularly useful
behaviour but may become a POSIX requirement.
expansion terminate the string, as is already the case in bash. This is
not particularly useful behaviour but may become a POSIX requirement.
The new shell option POSIX_TRAPS causes the EXIT trap to behave in the same
way as in other shells, i.e. it is only run when the shell exits.