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bug#3400: bug in add-text-properties
From: |
Werner LEMBERG |
Subject: |
bug#3400: bug in add-text-properties |
Date: |
Thu, 28 May 2009 23:48:33 +0200 (CEST) |
>> Hmm. If I have
>
>> 12345
>> ABCDE
>
>> and I make `12345' + the newline after the `5' invisible and
>> intangible, I see
>
>> ABCDE
>
>> in the buffer. If the blinking cursor stays on the `A', and you
>> press `C-x =', do you *really* expect to see the properties of
>> character `1' instead of `A'? This is completely counterintuitive
>> IMHO.
>
> If you hit `b', the `b' will be inserted right before "12345", and it
> will not be invisible.
So what? With `C-x =' I see `A' and get the data of `1', this is what
I consider a bug. Actually, there is no way to retrieve information
from `A' at all.
> BTW, why are you using `intangible'?
I've just copied some code -- I haven't checked whether I can omit it.
BTW, the problem is not restricted to the beginning of the buffer.
With this input
12345
ABCDE
abcde
and this lisp code
(defun make-second-line-invisible ()
(interactive)
(goto-line 2)
(setq start (line-beginning-position))
(setq end (1+ (line-end-position))) ; handle \n
(add-text-properties start
end
'(invisible t
intangible t)))
there is the same problem: After calling the function you get
12345
abcde
and `C-x =' (positioned on the `a') reports the info of the now
invisible character `A'. Similarly, C-a only moves to character `b'.
Werner
- bug#3400: bug in add-text-properties, Werner LEMBERG, 2009/05/27
- bug#3400: bug in add-text-properties, martin rudalics, 2009/05/28
- bug#3400: bug in add-text-properties, Werner LEMBERG, 2009/05/28
- bug#3400: bug in add-text-properties, martin rudalics, 2009/05/28
- bug#3400: bug in add-text-properties, Stefan Monnier, 2009/05/28
- bug#3400: bug in add-text-properties,
Werner LEMBERG <=
- bug#3400: bug in add-text-properties, Stefan Monnier, 2009/05/28
- bug#3400: bug in add-text-properties, Werner LEMBERG, 2009/05/29
- bug#3400: bug in add-text-properties, Lennart Borgman, 2009/05/29
- bug#3400: bug in add-text-properties, Drew Adams, 2009/05/29
- bug#3400: bug in add-text-properties, Stefan Monnier, 2009/05/29
- bug#3400: bug in add-text-properties, Werner LEMBERG, 2009/05/29
- bug#3400: bug in add-text-properties, Stefan Monnier, 2009/05/29
- bug#3400: bug in add-text-properties, martin rudalics, 2009/05/29
- bug#3400: bug in add-text-properties, Werner LEMBERG, 2009/05/30
- bug#3400: bug in add-text-properties, martin rudalics, 2009/05/30