Validate proper CSS formatting of a unit — validateCssUnit
v1.9.0|Source:
R/tags.R
Description
Checks that the argument is valid for use as a CSS unit of length.
Arguments
- x
The unit to validate. Will be treated as a number of pixels if a unit is not specified.
Value
A properly formatted CSS unit of length, if possible. Otherwise, will throw an error.
Details
NULL
and NA
are returned unchanged.
Single element numeric vectors are returned as a character vector with the
number plus a suffix of "px"
.
Single element character vectors must be "auto"
, "fit-content"
or "inherit"
, a number, or a length calculated by the "calc"
CSS function. If the number has a suffix, it must be valid: px
,
\%
, ch
, em
, rem
, pt
, in
, cm
,
mm
, ex
, pc
, vh
, vw
, vmin
, or
vmax
.
If the number has no suffix, the suffix "px"
is appended.
Any other value will cause an error to be thrown.