* bug#16985: indent-for-tab-command error messages could mention line numbers
@ 2014-03-10 18:36 積丹尼 Dan Jacobson
2014-03-12 13:43 ` Stefan Monnier
` (2 more replies)
0 siblings, 3 replies; 6+ messages in thread
From: 積丹尼 Dan Jacobson @ 2014-03-10 18:36 UTC (permalink / raw
To: 16985
TAB (translated from <tab>) runs the command indent-for-tab-command,
Its messages,
forward-sexp: Scan error: "Unbalanced parentheses", 1970, 1
would be improved if they could also mention line numbers and not just
apparently byte numbers. E.g.,
Unbalanced parentheses at line 34 column 33.
^ permalink raw reply [flat|nested] 6+ messages in thread* bug#16985: indent-for-tab-command error messages could mention line numbers
2014-03-10 18:36 bug#16985: indent-for-tab-command error messages could mention line numbers 積丹尼 Dan Jacobson
@ 2014-03-12 13:43 ` Stefan Monnier
2014-03-12 18:25 ` 積丹尼 Dan Jacobson
2014-03-13 1:46 ` 積丹尼 Dan Jacobson
2 siblings, 0 replies; 6+ messages in thread
From: Stefan Monnier @ 2014-03-12 13:43 UTC (permalink / raw
To: 積丹尼 Dan Jacobson; +Cc: 16985
> TAB (translated from <tab>) runs the command indent-for-tab-command,
> Its messages,
> forward-sexp: Scan error: "Unbalanced parentheses", 1970, 1
> would be improved if they could also mention line numbers and not just
> apparently byte numbers. E.g.,
> Unbalanced parentheses at line 34 column 33.
Traditionally TAB does not signal an error for unbalanced parentheses.
It may indirectly signal such a problem by indenting to "a weird place".
IOW, please tell us in which case you got the above error, so we can
catch it and turn it into a non-error.
Stefan
^ permalink raw reply [flat|nested] 6+ messages in thread* bug#16985: indent-for-tab-command error messages could mention line numbers
2014-03-10 18:36 bug#16985: indent-for-tab-command error messages could mention line numbers 積丹尼 Dan Jacobson
2014-03-12 13:43 ` Stefan Monnier
@ 2014-03-12 18:25 ` 積丹尼 Dan Jacobson
2014-03-12 23:27 ` Stefan Monnier
2014-03-13 1:46 ` 積丹尼 Dan Jacobson
2 siblings, 1 reply; 6+ messages in thread
From: 積丹尼 Dan Jacobson @ 2014-03-12 18:25 UTC (permalink / raw
To: Stefan Monnier; +Cc: 16985
>>>>> "SM" == Stefan Monnier <monnier@iro.umontreal.ca> writes:
SM> IOW, please tell us in which case you got the above error, so we can
SM> catch it and turn it into a non-error.
I recall it was when I was editing a perl program, so try with perl
mode... But anyway I think it would be better to catch such errors.
^ permalink raw reply [flat|nested] 6+ messages in thread
* bug#16985: indent-for-tab-command error messages could mention line numbers
2014-03-12 18:25 ` 積丹尼 Dan Jacobson
@ 2014-03-12 23:27 ` Stefan Monnier
0 siblings, 0 replies; 6+ messages in thread
From: Stefan Monnier @ 2014-03-12 23:27 UTC (permalink / raw
To: 積丹尼 Dan Jacobson; +Cc: 16985
SM> IOW, please tell us in which case you got the above error, so we can
SM> catch it and turn it into a non-error.
> I recall it was when I was editing a perl program, so try with perl
> mode... But anyway I think it would be better to catch such errors.
Hmm... catch them and do what? Such a signal means that's a coding
error somewhere in the indentation code, so hiding the signal is not
a good idea.
Stefan
^ permalink raw reply [flat|nested] 6+ messages in thread
* bug#16985: indent-for-tab-command error messages could mention line numbers
2014-03-10 18:36 bug#16985: indent-for-tab-command error messages could mention line numbers 積丹尼 Dan Jacobson
2014-03-12 13:43 ` Stefan Monnier
2014-03-12 18:25 ` 積丹尼 Dan Jacobson
@ 2014-03-13 1:46 ` 積丹尼 Dan Jacobson
2014-04-02 19:49 ` Stefan Monnier
2 siblings, 1 reply; 6+ messages in thread
From: 積丹尼 Dan Jacobson @ 2014-03-13 1:46 UTC (permalink / raw
To: Stefan Monnier; +Cc: 16985
>>>>> "SM" == Stefan Monnier <monnier@iro.umontreal.ca> writes:
SM> IOW, please tell us in which case you got the above error, so we can
SM> catch it and turn it into a non-error.
>> I recall it was when I was editing a perl program, so try with perl
>> mode... But anyway I think it would be better to catch such errors.
SM> Hmm... catch them and do what? Such a signal means that's a coding
SM> error somewhere in the indentation code, so hiding the signal is not
SM> a good idea.
SM> Stefan
OK, this file.pl
{}}
}(
}
triggers the bug. Do C-x h TAB.
Also the message should say "Help report this bug in xxx.el!" else people
will think it is an error in their perl file.
^ permalink raw reply [flat|nested] 6+ messages in thread* bug#16985: indent-for-tab-command error messages could mention line numbers
2014-03-13 1:46 ` 積丹尼 Dan Jacobson
@ 2014-04-02 19:49 ` Stefan Monnier
0 siblings, 0 replies; 6+ messages in thread
From: Stefan Monnier @ 2014-04-02 19:49 UTC (permalink / raw
To: 積丹尼 Dan Jacobson; +Cc: 16985-done
>>>>> "積丹尼" == 積丹尼 Dan Jacobson <jidanni@jidanni.org> writes:
>>>>> "SM" == Stefan Monnier <monnier@iro.umontreal.ca> writes:
SM> IOW, please tell us in which case you got the above error, so we can
SM> catch it and turn it into a non-error.
>>> I recall it was when I was editing a perl program, so try with perl
>>> mode... But anyway I think it would be better to catch such errors.
SM> Hmm... catch them and do what? Such a signal means that's a coding
SM> error somewhere in the indentation code, so hiding the signal is not
SM> a good idea.
SM> Stefan
> OK, this file.pl
> {}}
> }(
> }
> triggers the bug. Do C-x h TAB.
> Also the message should say "Help report this bug in xxx.el!" else people
> will think it is an error in their perl file.
Thanks for the simple test case. I installed the patch below which
should fix those problems.
Stefan
=== modified file 'lisp/progmodes/perl-mode.el'
--- lisp/progmodes/perl-mode.el 2014-02-10 01:34:22 +0000
+++ lisp/progmodes/perl-mode.el 2014-04-02 19:46:36 +0000
@@ -854,11 +854,12 @@
(and (= (char-syntax (following-char)) ?\))
(save-excursion
(forward-char 1)
- (forward-sexp -1)
+ (when (condition-case nil (progn (forward-sexp -1) t)
+ (scan-error nil))
(perl-indent-new-calculate
;; Recalculate the parsing-start, since we may have jumped
;; dangerously close (typically in the case of nested functions).
- 'virtual nil (save-excursion (perl-beginning-of-function)))))
+ 'virtual nil (save-excursion (perl-beginning-of-function))))))
(and (and (= (following-char) ?{)
(save-excursion (forward-char) (perl-hanging-paren-p)))
(+ (or default (perl-calculate-indent parse-start))
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2014-04-02 19:49 UTC | newest]
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2014-03-10 18:36 bug#16985: indent-for-tab-command error messages could mention line numbers 積丹尼 Dan Jacobson
2014-03-12 13:43 ` Stefan Monnier
2014-03-12 18:25 ` 積丹尼 Dan Jacobson
2014-03-12 23:27 ` Stefan Monnier
2014-03-13 1:46 ` 積丹尼 Dan Jacobson
2014-04-02 19:49 ` Stefan Monnier
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