
452
|
Chapter 6: Font Formats, Glyph Sets, and Font Tools
prevent or preclude conversion to other formats, and there are plenty of fonts in the public
domain.
Admittedly and thankfully, the need to convert fonts from one format to another has
diminished over the years. Part of this is due to OpenType and the trend toward building
such fonts. My own font format conversion needs typically fall into the desire to convert a
font based on a legacy font format into an OpenType font.
Gaiji Handling
Gaiji,
*
sometimes referred to as external characters,
†
are best described as glyphs that the
user cannot enter. Gaiji is a Japanese word, written (gaiji), and like the Japanese
word sushi,
‡
it has become somewhat internationalized due to its broad and sweeping
implications. e prototypical gaiji is an ideograph, but a gaiji can be a generic symbol, a
corporate logo, or a new currency symbol. It may or may not be in Unicode. It may be in
a known glyph set. It may be in a font, but simply not accessible due to IME limitations or
because it is simply not encoded. What is key is that the desired glyph is not available in
an installed font (meaning that it is not in the selected font) or not available in its typeface
style.
In Appendix E we will explore the vendor-specic characters that are dened within vendor-
specic character sets. I state there that these characters do not convert ...