On 28/02/2014 01:07, Patrick Walton wrote:
Hi everyone,
In an effort to future-proof our code for bidi and vertical writing [1],
I'm wondering whether we should go through and rename our directions
used throughout Servo to correspond to the abstract dimensions used in
CSS3 writing modes,
I think we should.
and if so, what to name them.
I suppose we have the following options for "flow-relative directions":
1.
"block-start"/"block-end"/"inline-start"/"inline-end"/"extent"/"measure"
(spec option A);
2.
"block-start"/"block-end"/"inline-start"/"inline-end"/"logical-width"/"logical-height"
(spec option B);
In general I prefer using spec terminology, but in this specific case I
don’t really like either extent/measure (too foreign, not obvious which
is which) not logical-width/logical-height (too "physical-like").
Gecko (see layout/generic/WritingModes.h) uses inline-size and
block-size, which nicely preserves the pattern of
block-start/block-end/inline-start/inline-end. In APIs, it also
abbreviates inline-foo and block-foo to IFoo and BFoo, respectively.
3. "top"/bottom"/"left"/"right"/"width"/"height" (today);
4. Same as (3), but with "logical" added.
And for "line-relative directions":
1. "over"/"under"/"line-left"/"line-right" (spec);
2. "top"/"bottom"/"left"/"right" (today);
3. Same as (2), but with "logical" added.
Opinions?
--
Simon Sapin
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