* bug#42588: 27.0.50; Emacs shell differs from a terminal in unexpected ways
@ 2020-07-28 20:44 Markus Triska
2020-08-01 7:59 ` bug#42588: This issue is resolved by a change in Scryer Prolog Markus Triska
0 siblings, 1 reply; 2+ messages in thread
From: Markus Triska @ 2020-07-28 20:44 UTC (permalink / raw)
To: 42588
To reproduce this issue, please install Scryer Prolog in one of the ways
indicated in its source repository:
https://github.com/mthom/scryer-prolog/
For example, use:
$ cargo install scryer-prolog
Then, start Emacs with:
$ emacs -Q
and start a shell with M-x shell RET. In the shell, invoke Scryer Prolog
and paste the following in the buffer:
writeq('\
'). % "\\\n"
Scryer Prolog will answer with:
caught: error(syntax_error(invalid_single_quoted_character),read_term/3)
?- caught: error(syntax_error(invalid_single_quoted_character),read_term/3)
?-
However, when I launch Scryer Prolog in any terminal application and
paste the exact same text, I get as response:
'' true.
So, the entire interaction reads, and is supposed to be:
?- writeq('\
'). % "\\\n"
'' true.
I expect the same result when posting this in the Emacs shell. However,
in the Emacs shell, the entire interaction is unexpectedly:
bash-3.2$ ~/scryer-prolog/target/release/scryer-prolog
?- writeq('\
'). % "\\\n"
caught: error(syntax_error(invalid_single_quoted_character),read_term/3)
?- caught: error(syntax_error(invalid_single_quoted_character),read_term/3)
?-
Could you please have a look, and if possible implement the behaviour of
the system terminal also in the Emacs shell?
Thank you a lot!
Markus
In GNU Emacs 27.0.50 (build 1, x86_64-apple-darwin18.0.0, X toolkit, Xaw scroll bars)
of 2018-11-15 built on mt-mac
Repository revision: b4eb908f858284a7962851fd99c94598f76afa6f
Windowing system distributor 'The X.Org Foundation', version 11.0.11804000
System Description: Mac OS X 10.14.2
^ permalink raw reply [flat|nested] 2+ messages in thread
* bug#42588: This issue is resolved by a change in Scryer Prolog
2020-07-28 20:44 bug#42588: 27.0.50; Emacs shell differs from a terminal in unexpected ways Markus Triska
@ 2020-08-01 7:59 ` Markus Triska
0 siblings, 0 replies; 2+ messages in thread
From: Markus Triska @ 2020-08-01 7:59 UTC (permalink / raw)
To: 42588-done
A change was installed in Scryer Prolog that resolves this:
https://github.com/mthom/scryer-prolog/issues/643
The system now works as expected in the Emacs shell.
Thank you a lot!
Markus
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2020-07-28 20:44 bug#42588: 27.0.50; Emacs shell differs from a terminal in unexpected ways Markus Triska
2020-08-01 7:59 ` bug#42588: This issue is resolved by a change in Scryer Prolog Markus Triska
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