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= Getting access Using [[LuaTeX]] as the processing engine in ConTeXt allows one to directly use fonts installed on the user's system . Instead of converting all fonts =into the standard <code>.tfm</code> and <code>.vf</code> formats (as outlined in some [[This Way - My Way#MyWay|My Way]] documents<ref>[http://dl.contextgarden.net/websitesarchive/atl/tex/OpenType.pdf OpenType in ConTeXt] by Adam Lindsay</ref><ref>[http://dl.contextgarden.net/myway/expertfonts.pdf Installing Expert Fonts: Minion Pro] by Idris Samawi Hamid</ref>), LuaTeX creates these metric files automatically at run-time. This greatly simplifies font installation in ConTeXt.
= How LuaTeX can use non-TeX handles system fonts (in OpenType, TrueType or Type1 format) directly.=
The first time LuaTeX can use fonts in non-TeX format (e.g. OpenType, TrueType or Type1 format) directly. When ConTeXt processes a file that you runuses such non-traditional fonts, the actual fonts themselves are loaded in LuaTeX's embedded section of fontforge to extract their metric information. This removes the need for tfm and vf files on your disk, but it is also a somewhat lengthy and often memory-hungry process. Fortunately, the result of that internal preprocessing are also saved inside the texmf cache. Future runs using the same font (not just this file, but all files using that particular font) can then use the cached version of the metrics instead.
context myfile.tex on a file Mac OS users should note that uses such non-traditional fonts the current version of LuaTeX (which is probably always0.60), has severe problems dealing with the actual new TrueType collection fonts themselves have to be loaded in luatex's embedded section of fontforge to extract their metric informationSnow Leopard (Mac OS 10. This removes the need for tfm and vf files on your disk, but it is also a somewhat lengthy and often memory-hungry process6)That is why the results of that internal preprocessing are also saved inside the texmf cacheThe older Mac OS . Future runs using the same font (not just this file, but all files using that particular font) can then use the cached version of the metrics insteaddfont format works fine nowadays.
== Building the font database ==
You need to specify where the fonts should be looked for, by setting the <code>OSFONTDIR</code> environment variable. For instanceOn Windows,this might be achieved by running
set OSFONTDIR=c:/windows/fonts/
if the fonts should be found in <code>c:/windows/fonts/</code>; or. For Unix machines,
export OSFONTDIR="/usr/local/share/fonts;$HOME/.fonts"
if indicate that the fonts should be found in both <code>/usr/local/share/fonts</code> and <code>$HOME/.fonts</code>. The font database will then be automatically generated in the next run of <code>context</code>
The font database will then be automatically generated in the next run of <code>context</code>. You can also generate it manually by typing mtxrun --script font --reloador equally
mtxrun --script fonts --reload
MTXrun | fontnames: 3837 files read, 3342 normal and 49 extra entries added, 5 rejected, 3386 valid
If mtxrun has problem finding the mtx-fonts.lua file, it may be necessary to regenerate ConTeXt's file database: context --generate
== Querying the font database ==
The command
mtxrun --script fonts --list--all --pattern=*
will return the whole entries of the font database as a list, such as
You can query the database against a particular pattern. For instance,
mtxrun --script fonts --list --all --pattern=Delicious*
will return
deliciousbold Delicious-Bold /usr/local/share/fonts/d/delicious_bold.otf
You only have to do the reload manually when you have installed updates to already installed fonts that cause the font and/or file names to change.
This normally only happens for fonts that are still in development like [[TeX Gyre- Old Content]] and [[Latin Modern]].
You can rebuild the database manually, using the already-mentioned command
MTX_FONTS_AUTOLOAD
to "no".
 
== Get a warning if the glyph is missing ==
 
You need to add the command <code>\checkcharactersinfont</code> or
(better) <code>\enabletrackers[fonts.missing]</code> in the preamble
of your document.
 
In LMTX the command {{cmd|replacemissingcharacters}} will insert boxes where missing characters are expected. The boxes adhere to font style (italics, bold) and copying the box from PDF into the text editor will insert the missing glyph, so one can see the missing character without looking at the ''missing characters'' section of the log file.
 
== References ==
[http://context.aanhet.net/svn/contextman/context-reference/en/co-fonts.pdf The new manual chapter on fonts]
= Using fonts =
Handling fonts in LuaTeX can be done* in a simple but limited way, using the <code>simplefonts<[http://pragma-ade.nl/code> module;* in the standard way, using [[TypeScripts]general/manuals/mfonts.pdf Old Fonts Manual by Hans Hagen]
== With the <code>simplefonts<[http:/code> module ==/pragma-ade.nl/general/manuals/fonts-mkiv.pdf New Fonts Manual by Hans Hagen]
<code>simplefonts</code> is a third-party module written by Wolfgang Schuster.
It simplifies the use of = Using fonts in LuaTeX by* freeing the user from writing or using [[TypeScripts]];* offering an interface similar to the [http://www.ctan.org/tex-archive/macros/xetex/latex/fontspec/ fontspec package for XeTeX]=
For instanceHandling fonts in LuaTeX can be done* in a simple but limited way, assuming using the [http://www.josbuivenga.demon.nl/delicious.html Delicious fonts] are properly installed and recognized by ConTeXt, you can simply write: [Simplefonts - Old Content|<texcodecode>\usemodule[simplefonts</code> module] % load ];* in the module\setmainfontstandard way, using [[DeliciousTypeScripts - Old Content]] % set Delicious as main (serif) font \starttext\rm\tf roman \it italic \bf bold \bi bolditalic \sc smallcaps\stoptext</texcode>
== The standard way: Typescripts ==
\usetypefile[xx]
where ConTeXt prepends <code>type-</code> when it loads the file; but
<{{cmd>|usetypescriptfile</cmd> }} is the preferred command because it takes care of the<{{cmd>|starttypescriptcollection</cmd>}}/<{{cmd>|stoptypescriptcollection</cmd> }} environments. === Very simple example of typescript === If you are new to typescript you might have a look at this [[Simple Typescript Example]] to get a first idea how to use it.
=== Where to find existing typescripts ===
Each of the typescripts below defines a keyword to use with <{{cmd>|setupbodyfont</cmd>}}. Usually this is the same as the name of the typescript, but there is one exception (<code>antykwa-torunska</code>)
* Latin Modern (typescript name: <code>modern</code>; this is the default font set)
* Latin Modern variant (ts name: <code>modernvariable</code>; LM variable typewriter for serif)
* Postscript (ts name: <code>postscript</code>; Termes for serif, Heros for sans, Cursor for mono)
* Antykwa Toruńska (ts name: <code>antykwa-torunska</code>; only serif; defines <tt>antykwa</tt> as keyword for <{{cmd>|setupbodyfont</cmd>}})
* Iwona (ts name: <code>iwona</code>; only sans serif)
* Iwona Light, Medium and Heavy (ts names: <code>iwona-light</code>, <code>iwona-medium</code>, <code>iwona-heavy</code>; only sans; the medium variant is a small bit heavier than a "regular" one)
* Termes (ts name: <code>times</code>; only serif, Heros for sans)
=== Usage example ===
<texcode>
The first line seems to order ConTeXt to "install" (for the current file) the given typescript (it accepts what I have earlier called a "typescript name"). The last one starts using it (you may omit the size if you are satisfied with the default).
=== Combining predefined fonts in your own typescripts ===
It is also possible to combine fonts from the TeX Gyre collection in your own typescripts. The example below combines Bonum (Bookman) roman, Adventor (AvantGarde) for sans serif, Cursor (Courier) for teletype, and Euler for math. The <code>rscale=...</code> option ensures that all fonts have the same x-height. (You can lookup the relative x-heigt of a font using fontforge.)
That's as simple as using a traditional ConTeXt typescript!
But ... how is it any different, then? Well, the difference is that in Mark IV, we can use an Opentype font directly, so that what is done here: when we want to use Palatino, the [[TeX Gyre- Old Content]] equivalent (“Pagella”) is called and we can use its Opentype “features”; read on.
==== Opentype features ====
</texcode>
 
= References =
<references/>
[[Category:Fonts]]
[[Category:International]]

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