bugGNU nano - Bugs: bug #56991, widening the terminal and then...


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bug #56991: widening the terminal and then closing a file can warn about "Badness"

Submitter:  Benno Schulenberg <bens>
Submitted:  Fri 04 Oct 2019 08:21:58 AM UTC
Severity:  2 - Minor Status:  Fixed
Assigned to:  bens Open/Closed:  Closed
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Wed 27 Nov 2019 10:50:58 AM UTC, comment #3: 

Fixed in git, commit 68c3aaf2.

Benno Schulenberg <bens>
Project Administrator
Wed 27 Nov 2019 10:48:13 AM UTC, comment #2: 

On a terminal of 35 rows and 72 columns, run:

  src/nano --ignore --softwrap --quick --atblanks +1 NEWS +88,44 doc/faq.html

Then resize the terminal to 90 columns, type ^X, see the warnings, then type <Alt+Down> three times, then <Alt+Up> once.  See how the row with "nano also reached..." is duplicated.  When you then with <Up> move the cursor to the second of those rows, and press <Ctrl+Left> a few times, you'll see that the cursor stops in the middle of words: nano thinks that a different text is there than what is actually displayed.  When you then type ^L, the duplicated row disappears.

The problem is that when we close the first buffer and switch to the second, 'firstcolumn' hasn't been updated to fit the width of the screen, so nano starts diplaying chunks from a wrong starting point.

Benno Schulenberg <bens>
Project Administrator
Sat 05 Oct 2019 10:49:10 AM UTC, comment #1: 

For the recipe to produce the said warnings, the terminal needs to have at least 34 rows.

Benno Schulenberg <bens>
Project Administrator
Fri 04 Oct 2019 08:21:58 AM UTC, original submission:  

To reproduce, make your terminal 72 columns wide and then run:

  src/nano --ignore --softwrap  +1 NEWS +88,44 doc/faq.html

Then resize the window horizontally to 90 columns.  Then type ^X.

Result: [ Badness: tried to display a chunk on row 31/32/33... ]

Benno Schulenberg <bens>
Project Administrator


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    Follow 5 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2019-11-30 bens Open/ClosedOpen Closed
    2019-11-27 bens Severity3 - Normal 2 - Minor
    2019-11-27 bens StatusIn Progress Fixed
    2019-11-26 bens StatusNone In Progress
        Assigned toNone bens

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