VMS Help SCA, SCA Topics, TYPING *Conan The Librarian (sorry for the slow response - running on an old VAX) |
The TYPING function is a relationship function. It finds the type of some occurrence. Occurrences related in this manner have a TYPING relationship between them. For example, if INTEGER is typing variable X, then these two occurrences are in a TYPING relationship. In its most common form, the function format is as follows: TYPING( <typee>, <type>, DEPTH={<number> | ALL} ) In this format, <typee> and <type> can be any legal query expression, and <number> is a positive integer. A typical use of the function is to find the type of a variable. For example: FIND TYPING( X, *, DEPTH=1) This query finds the type of X, where X is some variable in the SCA database. The TYPING function also works on user-defined types. The defined type can have many levels, in which case the user can specify a depth as follows: FIND TYPING( user_defined_type, *, DEPTH=ALL) This query gives the full type tree for USER_DEFINED_TYPE. The TYPING function provides the power to return the exact type tree you want. The full format is as follows: TYPING( [ END=<typee> ], [ BEGIN=<type> ], [ DEPTH={<number> | ALL} ], [ RESULT=RESULT_KEYWORD ], [ TRACE=query_expression ] ) In the previous format, <typee> and <type> is any legal query expression, <number> is a positive integer, RESULT_KEYWORD can be STRUCTURE, NOSTRUCTURE, ANY_PATH, BEGIN, or END, and QUERY_ EXPRESSION is any legal query expression. For a full description of the TYPING relationship, see the on-line help file SCACOMMANDS.
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