Blush and Zebrackets: large- and small-scale typographical representation of nested associativity

Two systems are introduced that increase the information density of textual presentation by reconsidering text as pictures, expanding the range of written expression. Both schemes indicate nested associativity and both employ stripes, but in different styles: Blush uses large-scale vertical gutters, superimposed as reverse-fielding on indented outlines of computer programs; Zebrackets uses small-scale horizontal striations, superimposed on parenthetical delimiters. These systems are implemented as computer programs, active filters that represent textual information graphically