size ( ‘;’ LIST )*

Count the total number of elements in one or more lists

Summary

The size macro counts and returns the total number of elements across one or more comma-separated lists.

${size;<list>[;<list>...]}

Count elements in a list:

${size;a,b,c,d}
# Returns: 4

Count multiple lists:

${size;red,green;blue,yellow}
# Returns: 4

Count packages:

package.count=${size;${packages}}

Conditional on list size:

${if;${size;${exports}};has-exports;no-exports}