LineWrapper swallows line of text

In certain situations the LineWrapper.wrap method called by the text mixin swallows entire lines. I have not fully understood what happens, but it seems a single additional emitLine solves the issue. I think buffer is overwritten with word before its previous contents have been emitted, since the actual emitLine call happens afterwards.

See: https://github.com/jtillmann/pdfkit/commit/80868c23b946bc98775ee38c49eb741e68129ec8

I have a hard time reproducing this and since the one case I just solved it for is confidential I can’t share an example yet.

[igauravsehrawat]

@pbogdan03 Yes, you gotta use v0.8.0.

[AndreasZeiser]

I ran into this issue today and can confirm that the fix https://github.com/jtillmann/pdfkit/commit/80868c23b946bc98775ee38c49eb741e68129ec8 works.

Here is an example which shows the issue:

const text = 'hello line\nbreak';
const width = doc.widthOfString('hello line');
doc.text(text, { width: width - 1 });

Output of the code is:

line
break

Expected output:

hello
line
break