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defoma(1) defoma(1)
NAME
defoma - Debian Font Manager, a framework for automatic font configuration.
SYNOPSIS
defoma-font [options] command args..
defoma-app [options] command args..
defoma-subst [options] command args..
DESCRIPTION
Defoma stands for Debian Font Manager. It provides a framework for automatic font configu-
ration. This manpage introduces general Defoma concepts, please refer the manpage of
defoma-font, defoma-app, or defoma-subst for the detailed information of each command.
Fonts are used by numerous applications, but generally need to be configured separately
for each application. Defoma solves this problem by calling configuration scripts to
update the font configuration of applications whenever a font is installed or removed.
A Defoma-configuration script is a perl library that each application should install as
application-name.defoma under /usr/share/defoma/scripts and which configures a font for
that application. The following is an example of a script named foo.defoma.
@ACCEPT_CATEGORIES = qw(type1 truetype);
package foo;
sub type1 {
my $com = shift;
...
}
sub truetype {
my $com = shift;
...
}
1;
This example represents an application foo that wants to configure truetype and type1 cat-
egory fonts. A function by the same name as the relevant category is called by Defoma with
a command as the first argument, and then additional arguments depending on the command.
The following is a list of commands.
* register
* unregister
* do-install-real do-install-alias do-install-subst
* do-remove-real do-remove-alias do-remove-subst
* init
* term
* purge
do-install-* and do-remove-* commands are only called from Id cache. init and term are
called at the start and end (respectively) of the entire process.
Id cache is another feature of Defoma. A common problem during automatic configuration is
name space conflicts. Usually applications access fonts through logical font names (like
XLFDs and PostScript font names) rather than the fonts themselves (as font filenames).
Logical font names, called identifiers in Defoma, can easily conflict especially when font
aliases are permitted. Through the Id cache mechanism, only one font is actually installed
for each identifier even if it is provided by several fonts.
Id Substitution is an additional feature of Id cache. It selects a font to provide an id
specified by a rulefile. The rulefile describes rules giving required ids and their
hints. A rule is used to have more similar-looking fonts with the same characters substi-
tute for a required id. This feature can also be used for the purpose of grouping fonts
into different categories.
A category represents a type of font. Generally fonts that belong to the same category are
configured the same way.
Hints represent essential font information and typeface information about the font. They
consist of some HintTypes and their values. They can be specified from the command line
options of defoma-font, or through a hintfile.
Hintfile describes one or more fonts and their hints in a single file. It is supposed to
be put under /etc/defoma/hints as a conffile, so that users can modify the hints.
Below is an example hintfile. defoma-hints is a tool to help generating hints as well as
the hintfile, so you do not have to create one from scratch.
category type1
begin /usr/share/fonts/type1/foo.pfa
FontName = Helvetica
Charset = ISO8859-1
Family = Helvetica
Weight = Medium
Shape = Upright NoSerif
GeneralFamily = SansSerif
X-FontName = -urw-helvetica-medium-r-noraml--0-0-0-0-p-iso8859-1
end
begin /usr/share/fonts/type1/foob.pfa
FontName = Helvetica-Bold
Charset = ISO8859-1
Family = Helvetica
Weight = Bold
Shape = Upright NoSerif
GeneralFamily = SansSerif
X-FontName = -urw-helvetica-bold-r-noraml--0-0-0-0-p-iso8859-1
end
SEE ALSO
defoma-font(1). defoma-app(1). defoma-subst(1). defoma-hints(1). defoma-psfont-in-
staller(1). defoma-reconfigure(1). Defoma::Font(3pm). Defoma::Id(3pm). Defoma::Sub-
st(3pm). Defoma::Common(3pm). /usr/share/doc/defoma-doc/developers.html/index.html
/usr/share/doc/defoma-doc/defoma-script.html/index.html
March 4, 2001 defoma(1)
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On Apache
Under GNU General Public License
2012-05-25 20:22 @38.107.179.240 Crawled by CCBot/1.0 (+http://www.commoncrawl.org/bot.html)