Re: [NTG-context] problem with pdftex-1.40.1 and Gentium ligatures

1 Feb 2007


      Johan Sandblom wrote:
...
It took a lot of searching for a minimal case, apparently there are
many levels of interaction here. The file below has blanks for fi fl
ff when compiled with pdftex-1.40.1 but not with pdftex-1.30.5. Do you
need some parts of my tex/font setup as well?
Johan
\usetypescriptfile[type-sil-gentium]
\usetypescript[my][sil-gentium]
\setupbodyfont[sil-gentium, 10pt]
\definetypeface
  [chance]
  [cg]
  [calligraphy]
  [chancery]
  [default]
  [encoding=texnansi]
\def\ChCmd#1#2{%
  \switchtobodyfont[14pt]
  \setupinterlinespace[small]
  \framed[width=15cm, align=normal, frame=off]
         {\framed[frame=off, align=middle, offset=2mm, width=.8\textwidth]{#2}
          \hfilll\switchtobodyfont[chance,30pt]
          \framed[background=color, backgroundcolor=black, width=3cm,
align=right]{\white\bf#1}}}
\setuphead
  [chapter]
  [command=\ChCmd,
    header=empty,
    page=right]
\starttext
\chapter[meth]{Methods for studying human brain function}
fill significantly flog flash floozy flagellation
\stoptext
2007/2/1, Taco Hoekwater :
...
Hi Johan,
If the only change is the pdftex version, than it sounds like this
is a pdftex bug. Any chance you can create a small standalone testfile?
Best, Taco
Johan Sandblom wrote:
...
When I moved from pdftex-1.30.5-2.2 (from texlive-base-bin
2005.dfsg.2-10 on debian) to pdftex-1.40.1 suddenly ligatures in
gentium exhibited erratic behavior: they appeared correctly (or, more
accurately, the letters appeared, they did not look like a proper
ligature) on screen in xpdf and acroread but did not print (there were
just empty spaces). On windows, the fi, fl, and ff combinations made
blanks, just as on the printer. Reverting to pdftex-1.30.5-2.2
corrected the problem. Gentium is from ttf-gentium 1.02-2 on debian
and the typescript I use is below. Perhaps my poor typesetting
knowledge has lead me wrong and the lack of true ligatures is the
actual problem?
no, but it may be related to a bug in vf handling that has been resolved 
by now (new version of pdftex coming)

Hans

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