/irc-logs / w3c / #css / 2009-09-05 / end

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  1. # Session Start: Sat Sep 05 00:00:00 2009
  2. # Session Ident: #css
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  50. # [18:04] <TabAtkins> Is it okay to require a unit on a value, even if it's 0?
  51. # [18:04] <TabAtkins> I'm writing a parser for radial-gradient right now, and ran into a problem that applies equally to linear-gradient.
  52. # [18:05] <TabAtkins> Take, frex, the value "50px 0". Is that 0 supposed to be a length/percentage, in which case you have a two-token bg-position and an omitted angle? Or is is supposed to be an angle, in which case you have 1-token bg-position? The decision made has drastic effects on rendering.
  53. # [18:07] <TabAtkins> It doesn't even help if I make the bg-position and the angle comma-separated. Both are optional, so they (and their comma) can be omitted. Given "radial-gradient(0, circle contain, yellow, blue)", is that a default-position (centered), 0deg gradient? Or a (0,0)-centered gradient with default angle?
  54. # [18:07] <TabAtkins> If I specify that the angle *must* have a unit, all these problems disappear.
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  56. # [20:59] <fantasai> TabAtkins: you can drop the unit on lengths only
  57. # [20:59] <fantasai> TabAtkins: angles and percentages must have a unit
  58. # [21:00] <TabAtkins> Ah, perfect. I suppose I never looked into it closely enough. And in most cases where a percentage is allowed a length is too, so using a 0 is okay.
  59. # [21:00] <TabAtkins> Thanks, fantasai.
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The end :)