Bug: ESC character is only half width (screws up editing)

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Bug: ESC character is only half width (screws up editing)

Postby pmk65 » Mon Jul 17, 2017 7:33 pm

I recently needed to add some colors to a batch file output. And for this you have to enter Virtual Terminal Sequences starting with ESC (ASCII 27) See: https://msdn.microsoft.com/en-us/library/windows/desktop/mt638032(v=vs.85).aspx

In WeBuilder this character shows up as a rectangle, but only half the width of the regular characters.
This screws up the cursor positions on the line with the ESC characters.

I ended up having to edit the file in UltraEdit as that displays the ESC in similar fashion, but the width is the same as regular characters. (It just have some extra space on the right side of the character)
There are 10 types of people in the world: Those who understand binary and those who don't.
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Re: Bug: ESC character is only half width (screws up editing

Postby Aivars » Tue Jul 18, 2017 2:20 pm

Can you send me some sample text file that contains a few of those characters? I would attach it to the bug report for easier diagnostics. Thanks!
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Re: Bug: ESC character is only half width (screws up editing

Postby pmk65 » Tue Jul 18, 2017 5:53 pm

I also tried switching font in WeBuilder to "Courier New" which was the font used in my UltraEdit. But the same problem occurs.

Since the font used is a fixed-width font, maybe you can force the width to always be equal to the width of the "W" character.

Attached is a small batch script illustrating the problems with the ESC character.
colortest.zip
Small batch script illustrating the problems with the ESC character.
(641 Bytes) Downloaded 5 times
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Re: Bug: ESC character is only half width (screws up editing

Postby Aivars » Tue Jul 18, 2017 6:51 pm

Thanks! I have no idea how easy or hard this problem is, we will need to do some researching first.
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