-------- Original Message -------- Subject: Re: Compound datatypes: <length-range> Date: Thu, 04 Oct 2001 09:17:54 -0500 From: Paul Grosso <[EMAIL PROTECTED]> To: "Peter B. West" <[EMAIL PROTECTED]>, xsl-editors <[EMAIL PROTECTED]>
At 12:21 2001 09 28 -0400, Peter B. West wrote: >In 5.11 Property Datatypes, <length> and <percentage> are defined separately, >and <length-range> is specified as: >'A compound datatype, with components: minimum, optimum, maximum. >Each component is a <length>.' > >7.21.4 "leader-length" has: > >'Value: <length-range> | <percentage> | inherit >Initial: leader-length.minimum=0pt, .optimum=12.0pt, .maximum=100% >Applies to: fo:leader >Inherited: yes >Percentages: refer to width of content-rectangle of parent area >Media: visual > >Values have the following meanings: > ><length-range> >...' > >There is no discussion of the meaning of <percentage> corresponding to >the discussion of the meaning of <length-range>. We do already say: Percentages: refer to width of content-rectangle of parent area so I'm not sure what else needs to be discussed. (We are planning to reword this somewhat to be in terms of the inline-progression-dimension instead of width.) >Further on, the following example is given: > >leader-length.minimum="0pt" >leader-length.optimum="12pt" >leader-length.maximum="100%" > >In other words, the value of the leader-length property is not a ><length-range> or a <percentage>, it is a <length-range> whose components >are not simply <length>s, but <length>|<percentage>. 'inherit' is presumably >excluded by the constraint that compound datatypes may only be inherited as a >compound. If my understanding is correct, the actual specification of the >allowable value of leader-length is <length-percentage-range>|inherit, where >each component of <length-percentage-range> is <length>|<percentage>. Our data-typing is based on the refined values, not the specified values. >I assume from 7.21.4 that it is not intended to allow entries like >leader-length="20%". That is allowed; it means: leader-length.minimum="20%" leader-length.optimum="20%" leader-length.maximum="20%" and then the 20% gets refined into a value which is 20% of the inline-progression-dimension of the parent's content rectangle (which might be, say, the current column width). paul -- Peter B. West [EMAIL PROTECTED] http://powerup.com.au/~pbwest "Lord, to whom shall we go?" --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, email: [EMAIL PROTECTED]
