Additional units

[Crissov]

number.rb contains most absolute units found in CSS Values and Units level 4.

The CSS WG acknowledges the (prior) existence of other units in design and typography, but is unwilling to add more units unless there is proven current and future demand. Therefore, I'd like to add some units to preprocessors which, of course, would need to convert them to something CSS UAs understand. Would this be in scope of Sass?

• [css-values] Radians considered useless without π w3c/csswg-drafts#309
• [css-values] Traditional absolute length units w3c/csswg-drafts#315
• [css-syntax][css-values] Awkward Decimal Fractions and Non-Finite Values w3c/csswg-drafts#378
• [css-values] Adding new units: en, cap, bs/hs; m/dm/mu, dd/cc, thm/mdl, dot, yd/ft/hd, sx/tx/twip, ax/ay/bx/by/cx/cy; tip/tap/mark/pad/span/sole; moa/soa, pi, perm; min/h, now/mom, beat/blink, jif; bpm w3c/csswg-drafts#848

I would be willing to write the pull request myself, but I'd be grateful for pointers to files that would need to be changed as well.

[nex3]

We generally avoid adding syntax to Sass that might conflict with future CSS additions. New units fall squarely into that category, so I don't think this is something we can do.

[Crissov]

Yay, deadlock.