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| author | Peter Stephenson <p.stephenson@samsung.com> | 2018-11-14 14:22:10 +0000 |
|---|---|---|
| committer | Peter Stephenson <p.stephenson@samsung.com> | 2018-11-14 14:22:10 +0000 |
| commit | 7292c063e8fe38c9212bfb47880934effc052ae1 (patch) | |
| tree | f2ed8df4e1b48255375273e398df32503db59014 | |
| parent | e25f890589dce079f595b4a53388fb6a0e3abb9e (diff) | |
| download | zsh-7292c063e8fe38c9212bfb47880934effc052ae1.tar.gz zsh-7292c063e8fe38c9212bfb47880934effc052ae1.tar.xz zsh-7292c063e8fe38c9212bfb47880934effc052ae1.zip | |
43620: More care documenting command substitution including $(<...)
| -rw-r--r-- | ChangeLog | 5 | ||||
| -rw-r--r-- | Doc/Zsh/expn.yo | 13 |
2 files changed, 15 insertions, 3 deletions
diff --git a/ChangeLog b/ChangeLog index 26068c16d..d07a9dff3 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,8 @@ +2018-11-14 Peter Stephenson <p.stephenson@samsung.com> + + * 43620: Doc/Zsh/expn.yo: more care documenting command + substituion including $(<...). + 2018-11-13 dana <dana@dana.is> * 43809: Completion/Unix/Command/_npm: Suppress npm update checks diff --git a/Doc/Zsh/expn.yo b/Doc/Zsh/expn.yo index c79109700..a212d742d 100644 --- a/Doc/Zsh/expn.yo +++ b/Doc/Zsh/expn.yo @@ -1683,10 +1683,17 @@ any trailing newlines deleted. If the substitution is not enclosed in double quotes, the output is broken into words using the tt(IFS) parameter. vindex(IFS, use of) + The substitution `tt($LPAR()cat) var(foo)tt(RPAR())' may be replaced -by the equivalent but faster `tt($LPAR()<)var(foo)tt(RPAR())'. -In either case, if the option tt(GLOB_SUBST) is set, -the output is eligible for filename generation. +by the faster `tt($LPAR()<)var(foo)tt(RPAR())'. In this case var(foo) +undergoes single word shell expansions (em(parameter expansion), +em(command substitution) and em(arithmetic expansion)), but not +filename generation. + +If the option tt(GLOB_SUBST) is set, the result of any unquoted command +substitution, including the special form just mentioned, is eligible for +filename generation. + texinode(Arithmetic Expansion)(Brace Expansion)(Command Substitution)(Expansion) sect(Arithmetic Expansion) cindex(arithmetic expansion) |