Qualify use of 'line area' (#749). #750
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@palemieux see new clarification attempt; note also that only the last block area generated by a paragraph contains a last line area; it is not well-formed to say the last line of a |
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@skynavga Ok. This is much more precise. Why "the last block area" in "the last line area of the last block area"? Can a |
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@palemieux regarding
In the general XSL formatting model yes, but, at present in TTML, no, since TTML doesn't have the concept of a page break (or region break). However, in the future, we could have a paragraph flow into a series of connected regions, in which last block area is pertinent. Note also that the new language (here) matches the language already found in the note at the end of 10.2.39 tts:textAlign. |
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@nigelmegitt @skynavga This is not editorial, BTW |
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@palemieux there is definitely no impact on conformance, so I would have to disagree; making a change to normative text, for example, to do a better job of explaining something already implied, does not mean it is a substantive change |
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Build available at https://rawgit.com/w3c/ttml2/issue-0749-last-line-area-build/index.html |
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@palemieux I think this is an editorial clarification, but it is one that is significant enough to warrant care and time to get it right and to invite reviews. @skynavga it would be inappropriate to merge this early. |
| <p>Equivalent to <code>before</code> for all but the last affected line area; otherwise, equivalent to <code>after</code> | ||
| for the last affected line area.</p> | ||
| <p>Equivalent to <code>before</code> for all but the last line area of the last block area generated by | ||
| a <loc href="#content-vocabulary-p"><el>p</el></loc> element which contains annotated text; otherwise, equivalent to <code>after</code>.</p> |
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I see that <annotation-position> is only ever used as syntax for an attribute that applies to span elements. Should we be explicitly relating the p element mentioned here to the span on which the style attribute is applied?
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Why? A span can only be a descendant of a unique p.
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I mean to relate it to the particular p that the span is a descendant of, rather than any other p.
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But it cannot be interpreted as related to any other p, so what is the point in saying it. That would be like saying the impossible is impossible.
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I don't agree that it cannot be interpreted as related to any other p @skynavga, but I'm not motivated to argue this.
Closes #749.