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unposted: Add details about ${(*)...} expansion

This commit is contained in:
Bart Schaefer 2022-04-30 12:29:52 -07:00
parent 276020522e
commit fc1ae21fda
3 changed files with 10 additions and 1 deletions
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2
ChangeLog
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@ -1,5 +1,7 @@
2022-04-30 Bart Schaefer <schaefer@zsh.org>
* unposted: Doc/Zsh/expn.yo, Etc/NEWS: Details about ${(*)...}
* 50150: Src/Modules/stat.c: Filenames need unmetafy for printing
* 50149: Etc/BUGS, Src/builtin.c, Src/jobs.c: Remove all =(...)

3
Doc/Zsh/expn.yo
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@ -1498,8 +1498,9 @@ form using `tt(%%)' will remove the same matches as for `tt(##)' in reverse
order.
)
item(tt(*))(
pindex(EXTENDED_GLOB, enable)
Enable tt(EXTENDED_GLOB) for substitution via tt(${)...tt(/)...tt(}) or
tt(${)...tt(//)...tt(}).
tt(${)...tt(//)...tt(}). Note that `tt(**)' does not disable extendedglob.
)
item(tt(B))(
Include the index of the beginning of the match in the result.

6
NEWS
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@ -46,6 +46,12 @@ of CLOBBER for empty files only. It is disabled by default.
A (-) expansion flag was added. It works like (n) but correctly sorts
negative numbers.
The (*) expansion flag enables EXTENDED_GLOB for pattern matching.
For example, ${(*)sample/(#b)*(pat)*/${match[1]}} uses backreferences
even if EXTENDED_GLOB is not otherwise set. However, this does not
descend into nested exapansions, and doubling as (**) does not disable
EXTENDED_GLOB.
The compinit function learnt a -w option to explain why compdump runs.
When run without the -i or -u options and compaudit discovers security
issues, answering "y" to the "Ignore insecure ..." prompt removes the