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52759: ${ ... } trims one trailing newline; "${ ... }" preserves that newline.

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This commit is contained in:
Bart Schaefer 2024-03-17 14:28:28 -07:00
parent 45b0a838aa
commit 25182cc2e6
5 changed files with 61 additions and 17 deletions
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41
Test/D10nofork.ztst
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@ -86,9 +86,39 @@ F:setting option inside is too late for that substitution
?(eval):8: no matches found: f?*
purr ${| REPLY=$'trailing newlines remain\n\n' }
0:newline removal should not occur
0:newline removal should not occur, part 1
>trailing newlines remain
>
>
purr ${ echo $'one trailing newline\nremoved\n\n\n' }
0:newline removal in ${ ... }, zsh mode
>one trailing newline
>removed
>
>
>
() {
emulate -L ksh
purl ${ echo $'all trailing newlines\nremoved\n\n\n' }
purr "${ echo $'all trailing newlines\nremoved\n\n\n' }"
}
0:newline removal in ${ ... }, emulation mode, shwordsplit
>all
>trailing
>newlines
>removed
>all trailing newlines
>removed
purr "${ echo $'no trailing newlines\nremoved\n\n\n' }"
0:newline removal should not occur, part 2
>no trailing newlines
>removed
>
>
>
>
() {
@ -159,7 +189,7 @@ F:Why not use this error in the previous case as well?
1:unbalanced braces, part 4+
?(eval):1: closing brace expected
purr ${ purr STDOUT }
purr "${ purr STDOUT }"
0:capture stdout
>STDOUT
>
@ -322,7 +352,7 @@ F:Fiddly here to get EOF past the test syntax
0:here-string behavior
>in a here string
<<<${ purr $'stdout as a here string' }
<<<"${ purr $'stdout as a here string' }"
0:another capture stdout
>stdout as a here string
>
@ -331,7 +361,7 @@ F:Fiddly here to get EOF past the test syntax
wrap=${ purr "capture in environment assignment" } typeset -p wrap
0:assignment context
>typeset -g wrap='REPLY in environment assignment'
>typeset -g wrap=$'capture in environment assignment\n'
>typeset -g wrap='capture in environment assignment'
# Repeat return and exit tests with stdout capture
@ -410,7 +440,7 @@ F:must do this before evaluating the next test block
0:ignored braces, part 1
>buried}
purr ${ purr ${REPLY:-buried}}}
purr "${ purr ${REPLY:-buried}}}"
0:ignored braces, part 2
>buried
>}
@ -418,7 +448,6 @@ F:must do this before evaluating the next test block
purr ${ { echo nested ;} }
0:ignored braces, part 3
>nested
>
purr ${ { echo nested } } DONE
1:ignored braces, part 4