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Re: non-breaking hyphens
From: |
Eli Zaretskii |
Subject: |
Re: non-breaking hyphens |
Date: |
Mon, 17 Oct 2011 10:45:40 -0400 |
> From: Chong Yidong <address@hidden>
> Date: Mon, 17 Oct 2011 09:56:46 -0400
>
> >From the Text Display node in the Emacs manual:
>
> Some character sets define "no-break" versions of the space and
> hyphen characters, which are used where a line should not be broken.
> Emacs normally displays these characters with special faces
> (respectively, `nobreak-space' and `escape-glyph') to distinguish them
> from ordinary spaces and hyphens.
>
> Hmm---inserting #x2011 (NON-BREAKING HYPHEN) into the buffer does not
> show the character in the `escape-glyph' face. Does anyone know if
> #x2011 is indeed the character that manual is referring to? Is the
> manual description obsolete or is the Emacs behavior buggy?
The manual is referring to #xAD, see this fragment from
get_next_display_element (and the code thereafter which references
nbsp_or_shy):
if (! ASCII_CHAR_P (c) && ! NILP (Vnobreak_char_display))
nbsp_or_shy = (c == 0xA0 ? char_is_nbsp
: c == 0xAD ? char_is_soft_hyphen
: char_is_other);
Based on this, I'd say that the implementation is incomplete: it only
supports a subset of no-break characters defined by the Unicode
standard.
Note that the no-break characters should be displayed with the
`nobreak-space' face, not `escape-glyph' face. I think that the
manual should also mention the nobreak-char-display variable.
- non-breaking hyphens, Chong Yidong, 2011/10/17
- Re: non-breaking hyphens,
Eli Zaretskii <=
- Re: non-breaking hyphens, Chong Yidong, 2011/10/17
- Re: non-breaking hyphens, Eli Zaretskii, 2011/10/18
- Re: non-breaking hyphens, Chong Yidong, 2011/10/18
- Re: non-breaking hyphens, Stefan Monnier, 2011/10/18
- RE: non-breaking hyphens, Drew Adams, 2011/10/18
- Re: non-breaking hyphens, Juri Linkov, 2011/10/19
- RE: non-breaking hyphens, Drew Adams, 2011/10/19
- Re: non-breaking hyphens, Stefan Monnier, 2011/10/19
- Re: non-breaking hyphens, Eli Zaretskii, 2011/10/18
- Re: non-breaking hyphens, Juri Linkov, 2011/10/19