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bug#40008: Backtraces can contain very long strings
From: |
tomas |
Subject: |
bug#40008: Backtraces can contain very long strings |
Date: |
Tue, 10 Mar 2020 12:47:11 +0100 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Tue, Mar 10, 2020 at 11:05:24AM +0100, Jan Synacek wrote:
> I have the following backtrace:
>
> Backtrace:
> In ice-9/boot-9.scm:
> 1736:10 9 (with-exception-handler _ _ #:unwind? _ # _)
> In unknown file:
> 8 (apply-smob/0 #<thunk 651b40>)
> In ice-9/boot-9.scm:
> 718:2 7 (call-with-prompt _ _ #<procedure default-prompt-handle…>)
> In ice-9/eval.scm:
> 619:8 6 (_ #(#(#<directory (guile-user) 74cf00>)))
> In ice-9/boot-9.scm:
> 2806:4 5 (save-module-excursion _)
> 4351:12 4 (_)
> In /home/jsynacek/./git.scm:
> 72:0 3 (_)
> 61:16 2 (change-spec _ _ "66.33" _ #<output: file 1>)
> 48:12 1 (change-release "# We ship a .pc file but don't want t…" …)
> In unknown file:
> 0 (make-regexp "^Release:(\\s*).*$" "# We ship a .pc fil…" …)
>
> ERROR: In procedure make-regexp:
> Wrong type (expecting exact integer): "
> <HERE COMES A LOOOONG STRING WHICH IS ABOUT 193000 CHARACTERS WIDE>
> "
>
> While this is probably not considered an error, I guess it might be better
> to ellipsize strings in errors such is mine that are over a certain length
> long. The important part of the backtrace was scrolled away and I got
> confused about the string, as I thought it was part of the output and
> started wondering why (display ...) keeps the escaped newlines in the
> string.
Some want it, some want it not. I remember a couple of discussions
in guile-user and guile-devel about this topic.
Have you tried setting debug options `width' and/or `depth' (cf. procedure
`debug-options')?
(my current defaults are 79 columns/20 rows, this is Guile 3.0).
> If this is not considered a bug, please, at least consider it an RFE.
I guess one could argue about the current defaults, but it'll be
difficult to find values making all people happy all the time.
Cheers
-- t
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