numr — Numerators

numr (Numerators) replaces digits preceding a slash (U+002F) with numerator forms, and replaces the slash itself with the fraction slash (U+2044).

The specification’s Application interface says that, in recommended usage, this feature is applied automatically by the application as part of its implementation for frac (Fractions). Direct user control is not expected.

Example

Without numr

12

With numr

12

.fea source

Preview textfeature numr { sub [zero one two three four five six seven eight nine] by [zero.numr one.numr two.numr three.numr four.numr five.numr six.numr seven.numr eight.numr nine.numr]; } numr;

Compiling…

Writing it in a feature file

The rules are written with Lookup Type 1. The preview text has no slash, so this example only shows the digit substitution.

.fea sourcefeature numr { sub [zero one two three four five six seven eight nine] by [zero.numr one.numr two.numr three.numr four.numr five.numr six.numr seven.numr eight.numr nine.numr]; } numr;

Preview textWithout rules

12

With rules

12

Compiling…

Specifications

• Microsoft OpenType Specification, Registered features — Tag: ‘numr’