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Diffstat (limited to 'luaotfload.dtx')
| -rw-r--r-- | luaotfload.dtx | 31 |
1 files changed, 16 insertions, 15 deletions
diff --git a/luaotfload.dtx b/luaotfload.dtx index d9504c2..4f83091 100644 --- a/luaotfload.dtx +++ b/luaotfload.dtx @@ -159,26 +159,27 @@ and the derived files % \subsection{Introduction} % % Font management and installation has always been painful with \TeX. -% A lot of files are needed for one font (tfm, pfb, -% map, fd, vf), and as \TeX\ is 8-bit each font is limited to 256 characters. -% But the font world has -% evolved since \TeX, and new standard types of fonts have appeared, most -% notably -% \textsf{TrueType} and \textsf{OpenType} fonts. These fonts can contain a lot -% of characters, and have some functionalities (ligatures, old-style numbers, -% small capitals, etc.). They are everywhere, as the system fonts and most -% modern text softwares fonts are of this type. Until now the only -% way to use them directly with one of the descendents of \TeX\ was to use +% A lot of files are needed for one font (tfm, pfb, map, fd, vf), and as +% \TeX\ is 8-bit each font is limited to 256 characters. +% But the font world has evolved since \TeX, and new font technologies have +% appeared, most notably the so called \emph{smart font} technologies like +% \textsf{OpenType} fonts. These fonts can contain a lot of characters, and +% additional functionalities like ligatures, old-style numbers, small capitals, +% etc., and support more complex writing systems like Arabic and Indic scripts. +% They are widely deployed and available for all modern operating systems and +% are becoming the de facto standard fonts for advanced text layout. +% Until now the only way to use them directly in the \TeX\ world was by using % them with \XeTeX. % -% Unlike \XeTeX , \LuaTeX\ does not provide facilities for these fonts by -% default, but it provides a way to hook Lua code in some points of the \TeX\ -% processing; for instance, we can improve the font loading system, and this -% is what we do in this package. +% Unlike \XeTeX, \LuaTeX\ does not provide direct support for using these fonts +% by default, but it provides a way to hook Lua code in some points of the +% \TeX\ processing; for instance, we can improve the font loading system, and +% text procession, which what this package is about. % % \subsection{Loading fonts} % -% \textsf{luaotfload} supports an extended font loading syntax, inspired by \XeTeX, which looks like: +% \textsf{luaotfload} supports an extended font loading syntax which looks +% like: % % \begin{center} % |\font\foo={|\meta{prefix}|:|\meta{font name}|:|\meta{font features}|}| \meta{\TeX\ font features} |