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Re: emacs could not show this symbol.

From: Peter Dyballa
Subject: Re: emacs could not show this symbol.
Date: Thu, 28 Feb 2008 16:01:59 +0100

Am 28.02.2008 um 13:47 schrieb anhnmncb:

Now I have resolved the problem though don't know why :)
I use this configuration in .Xdefaults:
--------------------------x---------------------------- x--------------------------------
  Emacs.Fontset-0: \
  -misc-dejavu Sans Mono-medium-r-*-*-12-*-*-*-m-*-fontset-dejavu,\
chinese-gb2312:-microsoft-Microsoft YaHei-medium-r-*-*-*-*-*-*-p- *-iso10646-1,\ chinese-gbk:-microsoft-Microsoft YaHei-medium-r-*-*-*-*-*-*-p-*- iso10646-1,\ gb18030:-microsoft-Microsoft YaHei-medium-r-*-*-*-*-*-*-*-*- iso10646-1,\
mule-unicode-0100-24ff:-monotype-courier-medium-r-*-*-*-*-*-*-m-*- iso10646-1

I admit that I am not the font or fontset expert, I would have used here a gb2312.1980-0 encoded for the chinese-gb2312 encoding, a gb18030.2000-0 encoding for the gb18030 encoding, and a tis620-2 encoded font for the thai-tis620 encoding. For mule-unicode-0100-24ff encoding I would use a font that has more to offer than Monotype Courier, Lucida Sans Typewriter or DejaVu Sans Mono or Free Mono. Well, anyway, I should improve my own settings, too, and learn from this a bit.

And this in .emacs:
--------------------------x---------------------------- x--------------------------------
  "-misc-dejavu Sans Mono-medium-r-*-*-12-*-*-*-m-*-fontset-dejavu,"
"chinese-gb2312:-microsoft-Microsoft YaHei-medium-r-*-*-*-*-*-*-p- *-iso10646-1," "chinese-gbk:-microsoft-Microsoft YaHei-medium-r-*-*-*-*-*-*-p-*- iso10646-1," "gb18030:-microsoft-Microsoft YaHei-medium-r-*-*-*-*-*-*-*-*- iso10646-1,"
"mule-unicode-0100-24ff:-monotype-courier-medium-r-*-*-*-*-*-*-m- *-iso10646-1"))

Here above I would also check whether the font encodings match the GNU Emacs encodings.

  (set-fontset-font "fontset-default"
                    'thai "-misc-fixed-medium-r-*-*-*-*-*-*-*-*-iso10646-1")
(set-default-font "fontset-dejavu")
(add-to-list 'default-frame-alist '(font . "fontset-dejavu"))

You were constructing a "fontset-default" and then you're setting a "fontset-dejavu" to be used as default? I admit, documentation (particularly examples) of fontsets can be improved.

Another question, maybe emacs.font-backend is enabled by default?

You can check this easily by choosing "Send Bug Report..." from the Help menu. It will show the configure options used. And ldd (on GNU/ Linux) could tell you which to libraries GNU Emacs is linked. This can give you a hint of what it's able to use.

I comment it and find that xft is going on well. Don't know what's the
most correct way to configure fontset for xft emacs, although I tell
emacs to use fontset-dejavu, I find that emacs doesn't use this fontset

See my comment above!

And many times emacs could not align a line correctly,

Because you are using monospaced and proportionally spaced fonts in your fontsets:




Mac OS X is like a wigwam: no fences, no gates, but an apache inside.

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