lib-font/src/opentype/tables/simple/ttf/gasp.js

A JS based OpenType font inspector

import { SimpleTable } from "../../simple-table.js";
import lazy from "../../../../lazy.js";

/**
 * The OpenType `gasp` table.
 *
 * See https://docs.microsoft.com/en-us/typography/opentype/spec/gasp
 */
class gasp extends SimpleTable {
  constructor(dict, dataview) {
    const { p } = super(dict, dataview);

    this.version = p.uint16;
    this.numRanges = p.uint16;

    const getter = () =>
      [...new Array(this.numRanges)].map((_) => new GASPRange(p));
    lazy(this, `gaspRanges`, getter);
  }
}

/**
 * GASPRange record
 */
class GASPRange {
  constructor(p) {
    this.rangeMaxPPEM = p.uint16;
    this.rangeGaspBehavior = p.uint16;
  }
}

export { gasp };