Re: [code] [textadept][bug] Tab width in OSX is wrong

From: Mitchell <>
Date: Thu, 4 Sep 2014 10:04:08 -0400 (Eastern Daylight Time)

Hi Feng,

On Tue, 2 Sep 2014, Feng Li wrote:

> Hi Mitchell
> This happens with all fonts (I've tried a few different monospace fonts:
> Menlo, Monaco, DejaVu Sans Mono and they all have this same issue).
> I have verified it's all good on Windows and Linux, so this appears to be a
> Mac only problem.
> it looks to me like some rounding error adding up due to the way OSX
> renders glyphs.

I cannot reproduce the issue on my Mac OSX 10.6.2 installation. Here is
what I did to investigate:

1. Open a new buffer.
2. Use the command entry to enter "use_tabs=true"
3. Enter command "tab_width=4"
4. Enter command "view_ws=1"
5. [Optional] Type something similar to your original screenshot to verify
the characters are lining up correctly (worked for me).
6. Enter command "=buffer:text_width(32,'1234\t')"
7. Note the result (57 for me with Monaco font size 12).
8. Switch back to the previous buffer and enter command
9. Note the result (again, 57, verifying tabs are drawn correctly).
10. I'm guessing that your #7 and #9 results are different, thus the
offset error.

Can anyone else reproduce non-matching #7 and #9 on Mac OSX following the
steps above? Please report your version numbers too. Thanks.


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Received on Thu 04 Sep 2014 - 10:04:08 EDT

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