TypeScripts

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Typescripts are the ConTeXt way of using fonts and defining font families.

Beware, the examples on this page work only with MkII / pdfTeX (i.e. neither XeTeX nor LuaTeX).

Basics

Sample typescript for the free text font Gentium. Installation instructions are at Installing a TrueType font, step by step. A typescript must live in your project folder or in another folder in your ConTeXt path (e.g., (texmf)/tex/context/user)

% type-sil-gentium.tex
% Typescript for serif family SIL Gentium

% load mapfile

\starttypescript [map] [gentium] [\defaultencoding]
    \loadmapfile [\defaultencoding-sil-gentium.map]
\stoptypescript

% mapping from PostScript name (or visible font name, if it's a TrueType font) to TFM file name
% The second argument means that these names are loaded with either the 'gentium'
% or 'gentium-alt' names.

\starttypescript [serif] [gentium,gentium-alt] [\defaultencoding] % mapping is used by two "name" typescripts
    \definefontsynonym [Gentium]           [\defaultencoding-genr101]  [encoding=\defaultencoding]
    \definefontsynonym [Gentium-Italic]    [\defaultencoding-geni101]  [encoding=\defaultencoding]
    \definefontsynonym [GentiumAlt]        [\defaultencoding-genar101] [encoding=\defaultencoding]
    \definefontsynonym [GentiumAlt-Italic] [\defaultencoding-genai101] [encoding=\defaultencoding]
\stoptypescript

% mapping from generic family name to PostScript name

\starttypescript [serif] [gentium] [name]
    \definefontsynonym [Serif]       [Gentium]
    \definefontsynonym [SerifItalic] [Gentium-Italic]
\stoptypescript

% additional mapping to alternate glyphs, not further used

\starttypescript [serif] [gentium-alt] [name]
    \definefontsynonym [Serif]       [GentiumAlt]
    \definefontsynonym [SerifItalic] [GentiumAlt-Italic]
\stoptypescript

% sample family definition
% here we define only the serif (rm) version.

\starttypescript [sil-gentium]
    \definetypeface [sil-gentium] [rm] [serif] [gentium] [default] [encoding=\defaultencoding]
%   \definetypeface [sil-gentium] [ss] [sans]  [default] [default] [encoding=\defaultencoding]
%   \definetypeface [sil-gentium] [tt] [mono]  [default] [default] [encoding=\defaultencoding]
%   \definetypeface [sil-gentium] [mm] [math]  [default] [default] [encoding=\defaultencoding]
\stoptypescript

The multiple mapping is not strictly needed, but increases flexibility.

To use your new typescript, write the following in your environment file (or single TeX file):

\setupencoding[default=ec] % defines \defaultencoding

\usetypescriptfile[type-sil-gentium]

\usetypescript[sil-gentium]
\setupbodyfont[sil-gentium,rm,12pt]

\setupbodyfontenvironment [default] [em=italic] % slanted is default emphasize in ConTeXt

The map file was written by texfont and lives in (texmf)/fonts/map/pdftex/context. It combines raw TFM (metrics), PostScript name, font file and encoding

% ec-sil-gentium.map
ec-raw-genai101 GentiumAlt-Italic 4 < genai101.pfb ec.enc
ec-raw-genar101 GentiumAlt 4 < genar101.pfb ec.enc
ec-raw-geni101 Gentium-Italic 4 < geni101.pfb ec.enc
ec-raw-genr101 Gentium 4 < genr101.pfb ec.enc

The next step: making it more generic

If you'd like to write a typescript that handles many more encodings, somewhat more generically, here is one model to build upon:

% type-sil-gentium.tex
% Typescript for serif family SIL Gentium

% This is the first change we need to make: we list all the encodings it can match,
% and then use that data within the typescript:

\starttypescript [map] [gentium] [ec,texnansi,8r,t5,t2a,t2b,qx]
    \loadmapfile [\typescriptthree-sil-gentium.map]
\stoptypescript

% We use the same technique. As the encoding variable shows up in the third
% argument, we use \typescriptthree.

\starttypescript [serif] [gentium] [ec,texnansi,8r,t5,t2a,t2b,qx]
    \definefontsynonym [Gentium]           [\typescriptthree-genr101] [encoding=\typescriptthree]
    \definefontsynonym [Gentium-Italic]    [\typescriptthree-geni101] [encoding=\typescriptthree]
    \definefontsynonym [GentiumAlt]        [\typescriptthree-genar101][encoding=\typescriptthree]
    \definefontsynonym [GentiumAlt-Italic] [\typescriptthree-genai101][encoding=\typescriptthree]
\stoptypescript

% Getting fancy: occasionally you want to access alternates from the main font:

\starttypescript [serif] [gentium] [name]
    \setups [font:fallback:serif] % We use the new (and fast loading) font fallbacks to cover bold markup.
    \definefontsynonym [Serif]               [Gentium]
    \definefontsynonym [SerifItalic]         [Gentium-Italic]
    % Gentium contains only two faces, so we map everything else on Italic
    \definefontsynonym [SerifSlanted]        [SerifItalic]
    \definefontsynonym [SerifBoldItalic]     [SerifItalic]
    \definefontsynonym [SerifCaps]           [SerifItalic]
    \definefontsynonym [SerifBoldCaps]       [SerifItalic]
    % markup of \Var[alt] results in a (subtle) font switch (Gentium's alternate glyphs change only some diacritics):
    \definefontvariant [Serif] [alt] [Alt]
    % unfortunately you need to define eight synonyms to handle the fallback cases:
    \definefontsynonym [SerifRegular]        [Serif]
    \definefontsynonym [SerifRegularAlt]     [GentiumAlt] % you must define "Regular" for every additional variant
    \definefontsynonym [SerifBoldAlt]        [GentiumAlt]
    \definefontsynonym [SerifCapsAlt]        [GentiumAlt]
    \definefontsynonym [SerifItalicAlt]      [GentiumAlt-Italic]
    \definefontsynonym [SerifSlantedAlt]     [GentiumAlt-Italic]
    \definefontsynonym [SerifBoldItalicAlt]  [GentiumAlt-Italic]
    \definefontsynonym [SerifBoldSlantedAlt] [GentiumAlt-Italic]
\stoptypescript

% sample family definition
% here we define only the serif (rm) version.

\starttypescript [sil-gentium] [ec,texnansi,8r,t5,t2a,t2b,qx]
    \definetypeface [sil-gentium] [rm] [serif] [gentium] [default] [encoding=\typescripttwo]
%   \definetypeface [sil-gentium] [ss] [sans]  [default] [default] [encoding=\typescripttwo]
%   \definetypeface [sil-gentium] [tt] [mono]  [default] [default] [encoding=\typescripttwo]
%   \definetypeface [sil-gentium] [mm] [math]  [default] [default] [encoding=\typescripttwo]
\stoptypescript

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