Type Alias OptionalLengthList 

type OptionalLengthList<N> = Option<CommaSeparatedList<Length<N>, 1, 4096>>;

Type for the x/y/dx/dy attributes of the <text> and <tspan> elements

https://svgwg.org/svg2-draft/text.html#TSpanAttributes

Explanation of this type:

• Option - the attribute can be specified or not, so make it optional

CommaSeparatedList<Length<Horizontal>> - This type knows how to parse a list of values that are separated by commas and/or spaces; the values are eventually available as a Vec.

• 1 is the minimum number of elements in the list, so one can have x=“42” for example.

• 4096 is an arbitrary limit on the number of length values for each array, as a mitigation against malicious files which may want to have millions of elements to exhaust memory.

Aliased Type

enum OptionalLengthList<N> {
    None,
    Some(CommaSeparatedList<CssLength<N, Signed>, 1, 4096>),
}

Variants

None

No value.

Some(CommaSeparatedList<CssLength<N, Signed>, 1, 4096>)

Some value of type T.