[tex-live] xdvipdfmx: tounicode entries for ligatures missing in pdf

Jiang Jiang gzjjgod at gmail.com
Sun May 6 01:54:03 CEST 2018


Can you reproduce it with plain TeX documents?

On Fri, May 4, 2018 at 9:06 AM, Ulrike Fischer <news3 at nililand.de> wrote:
> on tex.sx there is a question about a failing search in pdf
> https://tex.stackexchange.com/questions/430054/failing-search-for-words-with-ligatures-after-update
>
> As I happened to have the font available I tested and can confirm
> that something changed between TL17 and TL18:
>
> \documentclass{book}
>
> \usepackage{fontspec}
> \setmainfont{FrutigerLTCom-Light.ttf}
> \begin{document}
> Prefix.
> \end{document}
>
> With xelatex in TL17 is works fine and one can search in the pdf for
> "Prefix", in TL18 it not longer works.
>
> The fonts are the same but in the newer pdf a mapping for the
> ligature is missing:
>
> 7 beginbfchar
> <0011> <002E>
> <0014> <0031>
> <0033> <0050>
> <0048> <0065>
> <0055> <0072>
> <005B> <0078>
> <011F> <FB01>  %<------- missing in TL18
> endbfchar
>
> Another (free) font with the same Problem is Roboto:
>
> \setmainfont{Roboto-Regular.ttf} leads to
>
> 7 beginbfchar
> <0012> <002E>
> <0015> <0031>
> <0034> <0050>
> <0049> <0065>
> <0056> <0072>
> <005C> <0078>
> <01A4> <FB01> %<--- missing in TL18
> endbfchar
>
> (But here the fonts are perhaps not identical as they are in the
> texmf trees).
>
> --
> Ulrike Fischer
> http://www.troubleshooting-tex.de/
>


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