Developing fonts > Tools & SDKs > VOLT
VOLT and InDesign Tutorial
Step 5 - Add case-sensitive features
One of the more frequently overlooked details of fine typography is the adjustment of certain letter placements, based on their
context. The most common situation is with text set in ALL CAPS. When characters like square brackets and parentheses are used
with text set in all caps, they usually appear too low (since they are vertically aligned to work with lower case letters).
Though desktop typographers can often manually adjust character baselines when necessary, the task is somewhat daunting when
confronted with many of these situations (as might occur when setting the text of book). But, using a combination of the
OpenType layout feature <case> and InDesign's 'All Caps' menu option, these case-sensitive adjustments
can be done automatically. In this example, we'll create a <case> lookup to substitute vertically-adjusted
square brackets for normal square brackets when 'All Caps' is turned on.
Creating the <case> feature and associated lookup
In the main VOLT window, highlight the 'Default' language and click the 'Add Feature' button, then type in
<case> and hit ENTER. VOLT will label the new feature 'Case-Sensitive Forms'. Next, go to the 'Lookups' pane
to the right and click 'Add Substitution'. Give the new lookup a name like 'all_caps_brackets'. After finding and noting the
glyph names of the brackets to be replaced and the adjusted brackets (four glyphs total), enter in two substitution lines in
the edit window:
glyph_name_left_bracket -> glyph_name_left_bracket_adjusted
glyph_name_right_bracket -> glyph_name_right_bracket_adjusted
Once you've added these two lines to the lookup, go back to the main VOLT window and drag the 'all_caps_brackets' lookup to
the 'Case-Sensitive Forms' feature. You can, of course, add as many adjustments to your <case> lookup as
you'd like — parentheses and certain punctuation marks can often benefit from being vertically adjusted in all caps settings.
Next section: Step 6 - Compile and test your fontintro | start | ligatures | small caps | numerals | case | compiling | InDesign
Last updated 19 August 2000.
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