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sr #110252: parameter expansion with escaped quotes inside here-documents

Submitter:  Trek <trek00>
Submitted:  Sun 28 Jun 2020 11:26:49 PM UTC
Category:  None Priority:  5 - Normal
Severity:  3 - Normal Status:  Done
Privacy:  Public Assigned to:  None
Open/Closed:  Open Operating System:  GNU/Linux
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Fri 10 Jul 2020 03:33:17 PM UTC, comment #1: 

Thanks for the report. This was fixed back in March, 2020, and the fix is in the devel branch and bash-5.1-alpha.

Chet Ramey <chet>
Group administrator
Sun 28 Jun 2020 11:26:49 PM UTC, original submission:  


parameter expansion with an expression containing escaped quotes behaves incorrectly inside here-documents, here a simple test:

  $ printf 'cat <<EOF\n${UNSET:-\\"test\\"}\nEOF\n' | bash

where it works fine on ksh, dash, busybox, mksh:

  $ printf 'cat <<EOF\n${UNSET:-\\"test\\"}\nEOF\n' | ksh

with bash it works fine outside here-documents:

  $ printf 'echo ${UNSET:-\\"test\\"}\n' | bash

i found that bug developing


Trek <trek00>


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    Follows 1 latest change.

    Date Changed by Updated Field Previous Value => Replaced by
    2020-07-10 chet StatusNone Done

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