4

When the option altP is used for the fbb package the ligatures don't appear anymore. This code:

\documentclass{report}
\usepackage[altP]{fbb}
\begin{document}
P f ff fi ffi fj
\end{document}

produces

enter image description here

which has the desired open 'P' but none of the ligatures, (cf.

\documentclass{report}
\usepackage{fbb}
\begin{document}
P f ff fi ffi fj
\end{document}

produces

enter image description here

). My question is twofold: what in the implementation of the option 'altP' causes this, and how can one acheive the same open 'P' without affecting the ligatures?

GGsnail
  • 68

1 Answers1

4

With the altP option, the chosen font is fbbP-Regular-tlf-t1. Producing a table for it shows the expected ligatures

enter image description here

However, if I try tftopl fbbP-Regular-tlf-t1, I see no rule for the ff ligature. There is

(LABEL O 33)
(LIG C l O 37)
(LIG C i O 36)

which should produce the ffi and ffl ligatures, on the condition that ff is mapped to O 33 (octal 33), which it isn't. Indeed, the program for f has

(LABEL C f)
(LIG C j O 30)
(LIG C i O 34)
(LIG C l O 35)

and you see that 

(LIG C f O 33)

is unfortunately missing. It's impossible to fix it on the TeX side.

The same happens for the bold font. The italic fonts (medium and bold) have no P variant, so they're good.

Update

Version 1.13 of fbb, released on 2017-06-24, solves the issue:

\documentclass{report}
\usepackage[altP]{fbb}

\begin{document}

P f ff fi ffi fj

{\itshape P f ff fi ffi fj}

{\bfseries P f ff fi ffi fj}

{\bfseries\itshape P f ff fi ffi fj}

\end{document}

will produce

enter image description here

Thanks to Michael Sharpe for the quick fix.

egreg
  • 1,121,712
  • Thanks for that @egreg- do you know if it is possible to replicate the behaviour of the 'altP' option on the TEX side manually? – GGsnail Jun 24 '17 at 21:17
  • I mailed the package maintainer about the issue. – egreg Jun 24 '17 at 21:24
  • 1
    @GWM No, it is not possible. I think that Michael Sharpe will take care of the problem very soon, as usual of him. By the way, we should give him big thanks for his great work with fonts. – egreg Jun 24 '17 at 21:26
  • Indeed, his package comes out beatifully overall. – GGsnail Jun 24 '17 at 21:35