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Fix command substitutions run on the same line as a here-doc (#91)
When a command substitution is run on the same line as a here-document, a syntax error occurs due to a regression introduced in ksh93u+ 2011-04-15: true << EOF; true $(true) EOF syntax error at line 1: `<<EOF' here-document not contained within command substitution The regression is caused by an error check that was added to make the following script causes a syntax error (because the here-document isn't completed inside of the command substitution): $(true << EOF) EOF src/cmd/ksh93/sh/lex.c: - Only throw an error when a here-document in a command substitution isn't completed inside of the command substitution. src/cmd/ksh93/tests/heredoc.sh: - Add a regression test for running a command substitution on the same line as a here-document. - Add a missed regression test for using here-documents in command substitutions. This is the original bug that was fixed in ksh93u+ 2011-04-15 (it is why the error message was added), but a regression test for here-documents in command substitutions wasn't added in that version. This bugfix was backported from ksh93v- 2013-10-10-alpha.
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@ -3,6 +3,11 @@ For full details, see the git log at: https://github.com/ksh93/ksh
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Any uppercase BUG_* names are modernish shell bug IDs.
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2020-07-23:
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- A command substitution that is run on the same line as a here-document
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will no longer cause a syntax error.
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2020-07-22:
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- Fixed two race conditions when running external commands on
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