Re: EOF while in parse_matched_pair closes interactive shell

[Chet Ramey]

On 2/21/23 3:56 AM, Eduardo A. Bustamante López wrote:

> Bash Version: 5.2
> Patch Level: 15
> Release Status: release
>
> Description:
>
>         The handling of EOF while parsing an (unmatched) quoted string changes
>      between 5.1 and 5.2.  In 5.1, typing [Ctrl-d] alone while in the context of
>      a quoted string in an interactive shell will report a syntax error, and
>      prompt for a new command.  In 5.2, the same action does not report a syntax
>      error, and instead the shell exits.

The shell should exit on EOF. Previous versions relied on undocumented
bison behavior, which resulted in a token that wasn't handled by the
grammar.

If there's a bug here, it's that interactive shells need to handle
IGNOREEOF in this case.

--
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU    chet@case.edu    http://tiswww.cwru.edu/~chet/