util::coalesce (public)

 util::coalesce [ args... ]

Defined in packages/acs-tcl/tcl/utilities-procs.tcl

Return the first nonempty argument, or the empty string if no argument is nonempty. Only the empty string is skipped; zero, false and whitespace are returned unchanged. All arguments are evaluated before this procedure is called.

Returns:

The first nonempty value, or the empty string.

Partial Call Graph (max 5 caller/called nodes):

Testcases:

No testcase defined.

Source code:

    foreach value $args {
        if {$value ne ""} {
            return $value
        }
    }
    return ""

XQL Not present:

PostgreSQL, Oracle

Generic XQL file:

packages/acs-tcl/tcl/utilities-procs.xql