smart Unicode font for Latin and Cyrillic scripts
The goal for this product was to provide a single Unicode-based font
family that would contain a comprehensive inventory of glyphs needed
for almost any Roman- or Cyrillic-based writing system, whether used
for phonetic or orthographic needs. In addition, there is provision for
other characters and symbols useful to linguists. This font makes use
of state-of-the-art font technologies to support complex typographic
issues, such as the need to position arbitrary combinations of base
glyphs and diacritics optimally.
Doulos is very similar to Times/Times New Roman, but only has a single
face - regular. It is intended for use alongside other Times-like fonts
where a range of styles (italic, bold) are not needed.
The Doulos SIL font contains near-complete coverage of all the
characters defined in Unicode 4.1 for Latin and Cyrillic. In total,
over 2,400 glyphs are included, providing support for over 1,900
characters as well as a large number of ligated character sequences
(e.g., contour tone letters used in phonetic transcription of tonal
In addition, alternately-designed glyphs are also provided for a number
of characters for use in particular contexts. The glyphs are accessible
in applications that support advanced font technologies, specifically
the Graphite or OpenType technologies. These technologies are also
utilized to provide automatic positioning of diacritics relative to
base characters in arbitrary base+diacritic combinations (including
combinations involving multiple diacritics).
Some important issues with respect to Unicode need to be borne in mind.
Unicode is a character encoding and not a glyph encoding. Thus you
should endeavor to use the character that reflects your character needs
rather than finding a glyph that looks right and using its character
code. Thus, for example, there is only one code for CAPITAL ENG
(U+014A), although there are 4 different glyph shapes for this
character in use around the world. Therefore it is necessary to use
other means, such as user-selectable font features, to ensure that your
document displays the right glyph for the character that you are
anticipating. The advanced typographic capabilities mentioned above
provide this very capability.