Glyph name limitations Editing Fonts A glyph name must not be longer than 31 characters. These guidelines unify recommendations by Adobe Systems and those by Fontlab Ltd. The following sections present a summary of the Adobe/FontLab glyph naming guidelines. The glyph name should be constructed accordingly and the glyph may have a PUA Unicode codepoint assigned. In such cases, again, the appropriate OpenType Layout features must be used to produce the glyphs. Another example is the glyph which is a ligature of f followed by f followed by k (U+0066 U+0066 U+006B). It is encoded as E, followed by dot below, followed by acute (U+0045 U+0323 U+0301). This character does not have its own codepoint in the Unicode Standard so it needs to be encoded as a series of characters. For example, the glyph represents an accented character LATIN CAPITAL LETTER E WITH ACUTE AND DOT BELOW (used in African languages such as Yoruba).
Another case is that one glyph represents several Unicode characters at a time. The designer should rather duplicate the glyphs, assigning no more than one Unicode index to each of them (note that one of the glyphs can refer to the other one as a component). Generally however, assigning multiple Unicode codepoints to one glyph is not recommended, in particular when creating OpenType PS fonts. In this case, the Unicode field in the Properties panel would have the entry 0061 0430. For example, the glyph with the glyph index 66 with the shape of the letter a could represent two characters: U+0061 (LATIN SMALL LETTER A) and U+0430 (CYRILLIC SMALL LETTER A).
In such case, the Unicode codepoints of all the represented characters are entered in the Unicode field of the Properties panel, separated by spaces. FontLab Studio 5 150 First, several characters can have identical appearance, so the same glyph could serve as the default representation of each of those characters.
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