Some characters should be shifted vertically to fit the higher visual center of all-capital or lining text. By default, glyphs in a text face are designed to work with lowercase characters. A user inputs the P in Poetica, and is presented with a choice of the four standard capital forms, the eight swash capital forms, the initial capital form and the small capital form.įunction: Shifts various punctuation marks up to a position that works better with all-capital sequences or sets of lining figures also changes oldstyle figures to lining figures. Since many-to-one substitutions are not covered, ligatures would not appear in this table unless they were variant forms of another ligature. This serves several purposes: An application may not support the feature by which the desired glyph would normally be accessed the user may need a glyph outside the context supported by the normal substitution, or the user may not know what feature produces the desired glyph. Function: This feature makes all variations of a selected character accessible.
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