man clig_Usage (Conventions) - declare single line usage-string
NAME
::clig::Usage - declare single line usage-string
SYNOPSIS
package require clig namespace import ::clig::* setSpec db
Usage one-liner
DESCRIPTION
The Usage command specifies a one line description of the program's intent and function. The string one-liner is printed --- besides other sutff --- if the parser encounters an unknown option. Remember to enclose one-liner in braces. A (not so) typical example would be
Usage {program to delete your home directory}
In fact, the one-liner can be longer than one line. Best results are obtained, if one-liner is not put in braces but is surrounded by double quotes. The quoted string may than contain newlines. Clig automatically adds backslashes where necessary in the generated C-code so that the C-compiler does not go wild.
SEE ALSO
clig(1), clig_Commandline(7), clig_Description(7), clig_Double(7), clig_Flag(7), clig_Float(7), clig_Int(7), clig_Long(7), clig_Name(7), clig_Rest(7), clig_String(7), clig_Version(7), clig_parseCmdline(7)