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letters, lowercase letters, numerals, and punctuation are all characters. A glyph is actually
an image that represents a character, possibly in different forms. For example, a standard
numeral 1 is a character, whereas an old-style numeral 1 is a glyph. As another example,
an "f" and an "I" next to each other are characters, whereas an "fi" ligature is a glyph.
A one-to-one relationship does not always exist between characters and glyphs. In some
cases, three characters (such as a 1, a virgule, and a 4) make up a single fraction glyph. Or,
one character may be represented by three possible glyphs (three different ampersand
symbols, for example). You can select individual characters for formatting and editing,
regardless of the glyphs used.
Applying OpenType styles
You can apply an OpenType "style" to characters to display different, specially designed,
or repositioned glyphs within the current font. For example, you can apply Fractions to
access specific fraction glyphs instead of manually formatting fractions by resizing and
repositioning existing characters. Likewise, applying Standard Ligatures represents
characters according to ligatures available in the font. (See "Using ligatures" for more
information.) You can apply many styles in combination, although some, such as
Superscript and Subscript, are mutually exclusive.
To apply OpenType styles in the Character Attributes dialog box (Style > Character)
(Windows only), or the Character/Character Attributes tab of the Measurements palette,
and the Edit Character Attributes panes (Edit > Style Sheets) for setting up character
and paragraph style sheets, click the arrow next to OpenType to display the styles, and
then use the check boxes to apply styles. A check box that is unavailable or a drop-down
menu option in brackets indicates an OpenType style that the current font does not
support.
148 | A GUIDE TO QUARKXPRESS 10
TEXT AND TYPOGRAPHY