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Re: segmentation fault displaying etc/HELLO on Windows


From: Juanma Barranquero
Subject: Re: segmentation fault displaying etc/HELLO on Windows
Date: Wed, 30 Jul 2008 16:03:33 +0200

On Wed, Jul 30, 2008 at 15:11, Jason Rumney <address@hidden> wrote:

> Indeed, that was the problem. I reduced the buffer size to 1, since
> characters that produce multiple glyphs can't be handled properly by
> uniscribe_encode_char, but passed in a size of 20 (a number I'd picked
> after I'd come across Indic characters that produce more than the 2
> glyphs I'd originally allowed for) to the system function.

I can confirm that it doesn't crash anymore.

And the performance improvement is really great; I've been able to
scroll down the whole etc/NEWS buffer with the redisplay keeping the
pace and not a single undesired recenter in sight...

BTW, one of those questions about weird font selection choices by the
font backend:

In etc/HELLO there are two instances of U+2200 (FOR ALL). The newest
release of DejaVu (2.26) added a glyph for that codepoint to DejaVu
Sans Mono, which I use as default font.

Now the weird thing is, the first FOR ALL in etc/HELLO is shown as

        character: ∀ (8704, #o21000, #x2200)
preferred charset: unicode (Unicode (ISO10646))
       code point: 0x2200
           syntax: .    which means: punctuation
         category: h:Korean j:Japanese
      buffer code: #xE2 #x88 #x80
        file code: ESC #x24 #x42 #x22 #x4F (encoded by coding system
iso-2022-7bit-dos)
          display: by this font (glyph code)
    uniscribe:-outline-DejaVu Sans
Mono-normal-normal-normal-mono-13-*-*-*-c-*-iso10646-1 (#x7A2)

while the second one is

        character: ∀ (8704, #o21000, #x2200)
preferred charset: unicode (Unicode (ISO10646))
       code point: 0x2200
           syntax: .    which means: punctuation
         category: h:Korean j:Japanese
      buffer code: #xE2 #x88 #x80
        file code: ESC #x24 #x42 #x22 #x4F (encoded by coding system
iso-2022-7bit-dos)
          display: by this font (glyph code)
    uniscribe:-outline-MS
Mincho-normal-normal-normal-mono-13-*-*-*-c-*-jisx0208*-* (#x421)

Shouldn't it use DejaVu Sans Mono for both?

  Juanma

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