.Ulcharacter Statement--Set Underline Character
The .ulcharacter statement sets the underlining character to any single character when output is to a file or printer.
This statement has the following format:
.ulcharacter | .ulchar | .ulc 'c' | expression
The parameters for the .ulcharacter statement are as follows:
c
Any single character, subsequently used as the underlining character. The default underlining character is the underscore (_) for reports written to a file or printer, and none for reports written to the screen.
The character c must be a single character enclosed in quotes.
expression
A character expression that evaluates to any single character, subsequently used as the underlining character. Precede all variables that are part of the expression with a dollar sign ($). For more information, see the chapter "Report-Writer Expressions and Formats."