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First character after the cursor is dropped for Unicode not in braille table #5077

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nvaccessAuto opened this issue May 5, 2015 · 6 comments
Closed

First character after the cursor is dropped for Unicode not in braille table #5077

nvaccessAuto opened this issue May 5, 2015 · 6 comments
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bug component/braille

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@nvaccessAuto
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Reported by dkager on 2015-05-05 14:54
This issue occurs when the cursor moves onto Unicode characters that aren't defined in a braille table (#499, #537). Probably a liblouis bug.

To reproduce, use NVDA with the default braille table (en-us-comp8.ctb) and default braille settings. Open Notepad and enter the following line:
French uses the letter é a lot.

In braille this is rendered as:
French uses the letter '\x00e9' a lot.

The problem:

  • If the cursor is to the left of the charcode everything looks fine.
  • If the cursor is on the charcode (i.e. on the first apostrophe) the character just after the charcode is removed.
  • If the cursor is to the right of the charcode everything looks fine again.

For example, if the cursor is on the charcode, the following space is removed:
French uses the letter '\x00e9'a lot.

This becomes a bigger problem when the charcode appears in the middle of a word.

Finally, while on this subject, has there been a final decision on whether or not to print an arbitrary indicator instead of the hex code? I'd prefer that, especially if it was a user setting.
@nvaccessAuto
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Comment 1 by dkager on 2015-05-06 09:10
Just verified this also happens with other tables (nl-NL-g1.ctb) and also in NVDA 2015.1, so not to blame on liblouis 2.6.2.

@nvaccessAuto
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Comment 2 by jteh on 2015-05-06 11:31
Do you have "Expand to computer braille for the word at the cursor" enabled? If so, try with it disabled. While it seems counter-intuitive that this should have any effect when using this table, I suspect it's a different code path, so that setting may well matter.

@nvaccessAuto
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Comment 3 by dkager (in reply to comment 2) on 2015-05-06 12:16
Replying to jteh:

Do you have "Expand to computer braille for the word at the cursor" enabled? If so, try with it disabled. While it seems counter-intuitive that this should have any effect when using this table, I suspect it's a different code path, so that setting may well matter.

Correct: with this setting disabled the problem goes away. With it enabled, one character is eaten.

@nvaccessAuto
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Comment 4 by dkager on 2015-05-09 15:32
Reported upstream.

@jcsteh jcsteh removed the Untriaged label Nov 13, 2015
@dkager dkager mentioned this issue Feb 21, 2017
Closed
dkager added a commit to dkager/liblouis that referenced this issue Mar 1, 2017
@dkager
Mark the compbrlAtCursor test as xfail.
33a56e8 
This tests an unfixed bug.
See: nvaccess/nvda#5077
dkager added a commit to dkager/liblouis that referenced this issue Mar 1, 2017
@dkager
Mark the compbrlAtCursor test as xfail.
2046902 
This tests an unfixed bug.
See: nvaccess/nvda#5077
dkager added a commit to dkager/liblouis that referenced this issue Mar 13, 2017
@dkager
Mark the compbrlAtCursor test as xfail.
f4e9c5e 
This tests an unfixed bug.
See: nvaccess/nvda#5077
@Adriani90
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@dkager the Liblouis issue seems fixed. Is this issue still present?
cc: @Andre9642

@Adriani90
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I am closing this issue since we don't have any updates since years on this and the Liblouis issue seems solved. If you are having this issue still, please feel free to comment on this one and we can reopen. Thanks.

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@jcsteh @nvaccessAuto @ehollig @Adriani90