## ranges.json

ranges.json provides information about the way glyphs are presented in discrete ranges in this specification. Here is an excerpt of this file:

    {
      ...
      "analytics": {
        "description": "Analytics",
        "glyphs": [
          "analyticsHauptstimme",
          "analyticsNebenstimme",
          "analyticsStartStimme",
          "analyticsEndStimme",
          "analyticsTheme",
          "analyticsThemeRetrograde",
          "analyticsThemeRetrogradeInversion",
          "analyticsThemeInversion",
          "analyticsTheme1",
          "analyticsInversion1"
        ],
        "range_end": "U+E86F",
        "range_start": "U+E860"
      }
      ...
    }

This file uses a unique identifier for each range as the primary key, and within each structure the “description” specifies the human-readable range name (as it appears in this specification), “glyphs” is an array listing the canonical names of the glyphs contained within the range, and the “range_start” and “range_end” key/value pairs specify the first and last code point allocated to this range respectively.

The current versions of glyphnames.json, classes.json and ranges.json are available for download at GitHub.

It is further recommended that SMuFL-compliant fonts also contain font-specific metadata JSON files, which are described below.