calc and minus px values showing as invalid when they are not

[abursill]

I am surprised nobody else has reported this yet but the validator is showing calc(25% - 4px); and margin-left -4px; values as invalid css when I am assured it is not invalid and it is just the validator that has not been updated in ages. Almost everyone on the planet using a certified wordpress theme the latest ones will be having this problem.

[sapphonie]

Please fix this, I am also being affected by it.
Specifically, the validator fails to recognize that
calc(100% / 3)
is valid css. I get this error:
Value Error : width Parse Error calc(100% / 3)

[abursill]

So was this fixed or ignored and closed by admin

[ylafon]

Fixed, see above PR link.

[sapphonie]

It doesn't seem to be fixed, https://jigsaw.w3.org/css-validator/validator?uri=thesqrtminus1.com&profile=css3&usermedium=all&warning=1&vextwarning=&lang=en still gives me 3 errors, all related to calc()

[ylafon]

From https://www.w3.org/TR/2015/CR-css-values-3-20150611/#calc-type-checking
[[[
A math expression has a resolved type
, which is one of <length>, <frequency>, <angle>, <time>, <number>, or <integer>. The resolved type must be valid for where the expression is placed; otherwise, the expression is invalid. The resolved type of the expression is determined by the types of the values it contains. <number-token>s are of type <number> or <integer>. A <dimension-token>’s type is given by its unit (cm is <length>, deg is <angle>, etc.). An attr() expression’s type is given by its <type-or-unit> argument.

If percentages are accepted in the context in which the expression is placed, a <percentage-token> has the type of the value that percentages are relative to; otherwise, a math expression containing percentages is invalid.
]]]

I read this as resolved type "percentage" is not allowed, which is the error you see.