X font name fields.

Purdue Engineering Computer Network

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Most X fonts have a name consisting of 14 fields in the form:

 -foundry-family-weight-slant-setwidth-style-pixelSize-pointSize-\
  Xresolution-Yresolution-spacing-averageWidth-registry-encoding

The purpose of a name like this is to eliminate confusion among fonts. The 14 fields are as follows:

foundry

the name or identifier of the digital type foundry
that digitized and supplied the font data.

family

a string that identifies the basic typographic style
(e.g. "helvetica", "courier", etc.).

weight

a string that identifies the nominal blackness of the
font, according to the FOUNDRY's judgment (e.g. "medium",
"bold", etc.).

slant

a code string that indicates the overall posture of
the typeface design used in the font -- one of the
following:
R Roman upright design
I Italic italic design, slanted clockwise
O Oblique obliqued upright design, slanted clockwise

setwidth

a string that gives the nominal width per horizontal
unit of the font, according to the FOUNDRY's judgment
(e.g. "Normal", "Narrow", "Double Wide").

style

a string that identifies additional style information
not captured by other fields, but needed to uniquely
identify the font in the FOUNDRY's judgment (e.g.
"Serif", "Sans Serif").

pixelSize

an unsigned integer-string typographic metric in
device pixels which gives the body size of the font.

pointSize

an unsigned integer-string typographic metric in
device-independent units which gives the body size for
which the font was designed.

Xresolution

an unsigned integer-string in pixels/dots per inch
(dpi) which gives the horizontal resolution for which
the font was designed.

Yresolution

an unsigned integer-string in pixels/dots per inch
(dpi) which gives the vertical resolution for which
the font was designed.

spacing

a code-string that indicates the escapement class of
the font -- one of the following:
P Proportional proportional font
M Monospace a font whose logical character
widths are constant, but no
other restrictions apply
C CharCell a monospaced font in which the
glyphs can be modeled as boxes
of identical width and height
with no "ink" outside the box.

averageWidth

an unsigned integer-string value giving the unweighted
arithmetic mean width of all glyphs in the font,
measured in 1/10th pixels.

registry

a registered name that identifies the registration
authority (i.e. international standards body) that
owns the specified encoding.

encoding

a registered name that identifies the coded character
set as defined by the specified registry.