Undefined is not an object (evaluationg 'cff.topDict')

[howedeng]

It was throw exception TypeError:Undefined is not an object (evaluationg 'cff.topDict') when i loaded Apple PingFang Font and called fontData.glyphForCodePoint(120)

code:

fontData = fontkit.create(toBuffer(fontBase64Str));
xheight = getFontXHeight(fontData);

function toBuffer(base64data) {
var buffer = new Buffer(base64data,'base64');
return buffer
}
function getFontXHeight(fontData) {
fontData = fontData.glyphForCodePoint(120);
if (0 != fontData.id) {
return fontData = fontData.bbox;
} else {
return fontData.maxY - fontData.minY;
}
}
it was word well when loaded other font

[keepitreal]

Adding some feedback here as I'm hitting the same error.

To reproduce, try fetching glyph data for latin/english alphabet characters using the PingFang font or the Hiragino font.

It would make sense that these fonts don't have glyphs for English characters as they are Cantonese (PingFang) and Japanese (Hiragino) fonts. However I feel that there should be some graceful degradation provided by this library.

I'm new to this using this library and also to my understanding of fonts, glyphs, etc so if there is a suggestion from the author for what a graceful degradation looks like, I'd be happy to assist with a PR though I may not be the most qualified.

[Pomax]

One thing to bear in mind before trying to fetch codepoints from any font is that it is important to first verify that the font has glyphs for those codepoints: does fontData.hasGlyphForCodePoint(120) correctly resolve, or does that also give you the cff.topDict resolution error?

(if that works correctly, then it's probably still bad that the glyphForCodePoint function throws, but a more specific problem)

[liborm85]

Font parsing fixed in PR #224