* C-u C-x = prints garbage for a text property with value '(string . ?")
@ 2016-03-08 22:08 Alan Mackenzie
2016-03-09 3:36 ` Eli Zaretskii
0 siblings, 1 reply; 2+ messages in thread
From: Alan Mackenzie @ 2016-03-08 22:08 UTC (permalink / raw)
To: emacs-devel
Hello, Emacs.
In master (probably in emacs-25, too), give a character a text property
with value (string . ?"). When `describe-property-list' (descr-text.el)
comes to print it, it decides that (string . ?") is a "widget" (whatever
that is), and instead of printing the actual value, it ignores the cdr
and prints the car as follows:
string (widget)Top
It decides that 'string is a "widget" because the symbol string has a
widget-type property.
This is crazy! If somebody does C-u C-x = to see the value of the text
properties, surely that is what she should see? Not some "look how
clever I am" DWIM attempt that only prints half of the value?
I don't see the logic in this handling, therefore don't feel qualified
to fix this bug. Would somebody help me out, please.
--
Alan Mackenzie (Nuremberg, Germany).
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: C-u C-x = prints garbage for a text property with value '(string . ?")
2016-03-08 22:08 C-u C-x = prints garbage for a text property with value '(string . ?") Alan Mackenzie
@ 2016-03-09 3:36 ` Eli Zaretskii
0 siblings, 0 replies; 2+ messages in thread
From: Eli Zaretskii @ 2016-03-09 3:36 UTC (permalink / raw)
To: Alan Mackenzie; +Cc: emacs-devel
> Date: Tue, 8 Mar 2016 22:08:57 +0000
> From: Alan Mackenzie <acm@muc.de>
>
> In master (probably in emacs-25, too), give a character a text property
> with value (string . ?"). When `describe-property-list' (descr-text.el)
> comes to print it, it decides that (string . ?") is a "widget" (whatever
> that is), and instead of printing the actual value, it ignores the cdr
> and prints the car as follows:
>
> string (widget)Top
>
> It decides that 'string is a "widget" because the symbol string has a
> widget-type property.
>
> This is crazy! If somebody does C-u C-x = to see the value of the text
> properties, surely that is what she should see? Not some "look how
> clever I am" DWIM attempt that only prints half of the value?
>
> I don't see the logic in this handling, therefore don't feel qualified
> to fix this bug. Would somebody help me out, please.
Please make a complete bug report with a recipe to reproduce it.
^ permalink raw reply [flat|nested] 2+ messages in thread
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2016-03-08 22:08 C-u C-x = prints garbage for a text property with value '(string . ?") Alan Mackenzie
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