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| -rw-r--r-- | doc/luaotfload-main.tex | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/doc/luaotfload-main.tex b/doc/luaotfload-main.tex index 7099f3d..fdca3c0 100644 --- a/doc/luaotfload-main.tex +++ b/doc/luaotfload-main.tex @@ -807,6 +807,36 @@ Currently (2014) there are three of them: \endsection %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +\beginsection {Combining fonts} +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% + +Version 2.7 and later support combining characters from multiple fonts into a +single virtualized one. This requires that the affected fonts be loaded in +advance as well as a special \emphasis{request syntax}. Furthermore, this +allows to define \emphasis{fallback fonts} to supplement fonts that may lack +certain required glyphs. + +For example, the \identifier{Latin Modern} family of fonts does, as indicated +in the name, not provide Cyrillic glyphs. If Latin script dominates in the copy +with interspersed Cyrillic, a fallback can be created from a similiar looking +font like \identifier{Computer Modern Unicode}, taking advantage of the fact +that it too derives from Knuth’s original \identifier{Computer Modern} series: + +\beginlisting + \input luaotfload.sty + \font \lm = file:lmroman10-regular.otf:mode=base + \font \cmu = file:cmunrm.otf:mode=base + \font \lmu = "combo: 1->\fontid\lm; 2->\fontid\cmu,fallback" + \lmu Eh bien, mon prince. Gênes et Lueques ne sont plus que des + apanages, des поместья, de la famille Buonaparte. + \bye +\endlisting + +TODO + +\endsection + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% \beginsection {Font names database} %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% @@ -1779,3 +1809,4 @@ Distributions probably package it as \fileent \endinput +% vim:ft=tex:tw=79:et:sw=2 |