home *** CD-ROM | disk | FTP | other *** search
- array option arrayName ?arg arg ...?
- This command performs one of several operations on the
- variable given by arrayName. ArrayName must be the
- name of an existing array variable. The option
- argument determines what action is carried out by the
- command. The legal options (which may be abbreviated)
- are:
-
- array anymore arrayName searchId
- Returns 1 if there are any more elements left to
- be processed in an array search, 0 if all elements
- have already been returned. SearchId indicates
- which search on arrayName to check, and must have
- been the return value from a previous invocation
- of array startsearch. This option is particularly
- useful if an array has an element with an empty
- name, since the return value from array
- nextelement won't indicate whether the search has
- been completed.
-
- array donesearch arrayName searchId
- This command terminates an array search and
- destroys all the state associated with that
- search. SearchId indicates which search on
- arrayName to destroy, and must have been the
- return value from a previous invocation of array
- startsearch. Returns an empty string.
-
- array names arrayName
- Returns a list containing the names of all of the
- elements in the array. If there are no elements
- in the array then an empty string is returned.
-
- array nextelement arrayName searchId
- Returns the name of the next element in arrayName,
- or an empty string if all elements of arrayName
- have already been returned in this search. The
- searchId argument identifies the search, and must
- have been the return value of an array startsearch
- command. Warning: if elements are added to or
- deleted from the array, then all searches are
- automatically terminated just as if array
- donesearch had been invoked; this will cause array
- nextelement operations to fail for those searches.
-
- array size arrayName
- Returns a decimal string giving the number of
- elements in the array.
-
- array startsearch arrayName
- This command initializes an element-by-element
- search through the array given by arrayName, such
- that invocations of the array nextelement command
- will return the names of the individual elements
- in the array. When the search has been completed,
- the array donesearch command should be invoked.
- The return value is a search identifier that must
- be used in array nextelement and array donesearch
- commands; it allows multiple searches to be
- underway simultaneously for the same array.
-