Here’s a font called Noto Sans New Tai Lue from Googl

As a slightly more elaborate test, using <a href="https://fonts.google.com/noto/specim

.advanceWidth triggers RangeError: Offset is outside the bounds of the DataView about fontkit HOT 2 OPEN

iamakulov commented on July 2, 2024 1

.advanceWidth triggers RangeError: Offset is outside the bounds of the DataView

from fontkit.

Comments (2)

Pomax commented on July 2, 2024

As a slightly more elaborate test, using https://fonts.google.com/noto/specimen/Noto+Sans+New+Tai+Lue:

const fs = require("fs");
const fontkit = require("fontkit");
const font = fs.readFileSync("./NotoSansNewTaiLue-Regular.ttf");
const fontObject = fontkit.create(font);
const glyphs = fontObject.glyphsForString(" ");
console.log(glyphs[0]);
console.log(glyphs[0].advanceWidth);

yields:

<ref *1> $f680320fa07ef53d$export$2e2bcd8739ae039 {
  id: 440,
  codePoints: [ 32 ],
  _font: $0a8ef2660a6ce4b6$export$2e2bcd8739ae039 {
    type: 'TTF',
    defaultLanguage: null,
    stream: $8ae20583b93e4933$export$c18b354bac7948e9 {
      buffer: <Buffer 00 01 00 00 00 10 01 00 00 04 00 00 47 44 45 46 09 41 09 81 00 00 01 c8 00 00 00 54 47 50 4f 53 a6 ee 44 e4 00 00 25 00 00 00 1d 04 47 53 55 42 9a 2e ... 47330 more bytes>,
      view: [DataView],
      pos: 268,
      length: 47380
    },
    variationCoords: null,
    _directoryPos: 0,
    _tables: { cmap: [Object] },
    _glyphs: { '440': [Circular *1] },
    directory: {
      tag: '\x00\x01\x00\x00',
      numTables: 16,
      searchRange: 256,
      entrySelector: 4,
      rangeShift: 0,
      tables: [Object]
    }
  },
  isMark: false,
  isLigature: false,
  type: 'TTF'
}
d:\temp\node_modules\restructure\dist\main.cjs:91
        const ret = this.view[key](this.pos, false);
                                  ^

RangeError: Offset is outside the bounds of the DataView
    at DataView.getInt16 (<anonymous>)
    at $8ae20583b93e4933$export$c18b354bac7948e9.<computed> [as readInt16BE] (d:\temp\node_modules\restructure\dist\main.cjs:91:35)
    at $af65abf7bf65ac42$export$fffa67e515d04022.decode (d:\temp\node_modules\restructure\dist\main.cjs:268:40)
    at $aa8b66bae6abe658$export$eabc71f011df675a._parseFields (d:\temp\node_modules\restructure\dist\main.cjs:732:29)
    at $aa8b66bae6abe658$export$eabc71f011df675a.decode (d:\temp\node_modules\restructure\dist\main.cjs:703:14)
    at $f680320fa07ef53d$export$2e2bcd8739ae039._getCBox (d:\temp\node_modules\fontkit\dist\main.cjs:10906:54)
    at $f680320fa07ef53d$export$2e2bcd8739ae039._getMetrics (d:\temp\node_modules\fontkit\dist\main.cjs:11074:25)
    at get advanceWidth (d:\temp\node_modules\fontkit\dist\main.cjs:10764:21)
    at descriptor.get (d:\temp\node_modules\fontkit\dist\main.cjs:92:29)
    at Object.<anonymous> (d:\temp\test.js:7:23)

Node.js v18.14.1

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iamakulov commented on July 2, 2024

Yup, indeed! The exception happens only when you access .advanceWidth.

from fontkit.

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