case t::SPACE_NARROW:
/* Half-space?
- * Unicode doc http://www.unicode.org/charts/PDF/U2000.pdf says ~1/4 or 1/5 of EM.
+ * Unicode doc https://unicode.org/charts/PDF/U2000.pdf says ~1/4 or 1/5 of EM.
* However, in my testing, many fonts have their regular space being about that
* size. To me, a percentage of the space width makes more sense. Half is as
* good as any. */