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Re: [css3-writing-modes] "inline-axis" vs. "inline axis"

From: Tab Atkins Jr. <jackalmage@gmail.com>
Date: Tue, 18 Sep 2012 07:01:25 +0200
Message-ID: <CAAWBYDBH_Eyi2Fb1wzZK+f_vaizLBKdCZ9PAK1JNx9uLP0tCVQ@mail.gmail.com>
To: Daniel Holbert <dholbert@mozilla.com>
Cc: www-style list <www-style@w3.org>
On Tue, Sep 18, 2012 at 12:08 AM, Daniel Holbert <dholbert@mozilla.com> wrote:
> I believe the CSS3 writing-modes spec uses the terms "inline axis" and
> "inline-axis" to mean opposite things. (no-hyphen vs. with-hyphen)
> It'd be nice to clear that up.
>
> (For convenience, I'll assume we're dealing with a standard LTR
> English-text writing mode.)
>
> "inline axis" is Horizontal
> ===========================
> In section 4.1, the spec uses "inline axis" to indicate a horizontal
> line (the axis along which glyphs are aligned):
>   # A baseline is a line along the inline axis of a line box
>   # along which individual glyphs of text are aligned.
> http://dev.w3.org/csswg/css3-writing-modes/#intro-baselines
>
> "inline-axis" is Vertical
> =========================
> Section 6.1 defines "inline-axis" as being in the _block_ dimension:
>   # inline-axis
>   #    The axis in the block dimension, i.e. the
>   #    vertical axis in horizontal writing modes
>   #    and the horizontal axis in vertical writing
>   #    modes.
> and it defines "block dimension" as being vertical for english text:
>   # block dimension
>   #    The dimension perpendicular to the flow of
>   #    text with in a line, the vertical dimension
>   #    in horizontal writing modes
>
> The explicit "inline-axis" definition seems very counter-intuitive to me
> -- perhaps it's just backwards?  (Why would the inline-axis be in the
> _block_ dimension, and vice-versa?  Is the wording swapped there?)
>
> Or maybe I'm just misunderstanding the wording?

This appears to just be a typo in the 6.1 definition of "inline axis".
 It should be horizontal in horizontal modes, etc.

~TJ
Received on Tuesday, 18 September 2012 05:02:16 GMT

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