- such as AIX and Tru64 provide support for <EM>capname</EM> oper-
- ands. A few platforms such as FreeBSD and NetBSD recog-
- nize termcap names rather than terminfo capability names
- in their respective <STRONG>tput</STRONG> commands.
+ such as AIX and Tru64 provide support for <EM>capname</EM> oper-
+ ands.
+
+ A few platforms such as FreeBSD and NetBSD recognize term-
+ cap names rather than terminfo capability names in their
+ respective <STRONG>tput</STRONG> commands.
+
+ Most implementations which provide support for <EM>capname</EM> op-
+ erands use the <EM>tparm</EM> function to expand parameters in it.
+ That function expects a mixture of numeric and string
+ parameters, requiring <STRONG>tput</STRONG> to know which type to use.
+ This implementation uses a table to determine that for the
+ standard <EM>capname</EM> operands, and an internal library func-
+ tion to analyze nonstandard <EM>capname</EM> operands. Other
+ implementations may simply guess that an operand contain-
+ ing only digits is intended to be a number.