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- Synopsis:
- $finditem(<array> <string>)
- $ifinditem(<array> <string>)
- $ifindfirst(<array> <string>)
-
- Technical:
- These functions do a binary search on the items stored in the given
- array, looking for an exact match of the input string. It will only
- return the results of an exact match. Unlike other string handlers in
- the client, these are case-sensitive. They only operate on arrays
- created with the $setitem() function.
-
- These functions differ only in which exact match they will return. The
- $finditem() function returns the item number of the first match found;
- it does not check the array sequentially, so other exact matches with
- lower item numbers may not be returned. The $ifinditem() function is
- same, except it returns the index number of the first match found (also
- regardless of the actual indexing order). The $ifindfirst function is
- similar to $ifinditem(), except it returns the first exact match after
- the array has been sorted.
-
- Practical:
- These functions are useful when you want to see if a particular string is
- present in an array. Being sensitive to case, they are more precise than
- the general pattern-matching functions.
-
- Returns:
- -2 item not found in array
- -1 array does not exist
- > -1 item/index number that matches input
-
- Examples:
- /* contrived sample array */
- $setitem(booya 0 blah)
- $setitem(booya 1 foobar)
- $setitem(booya 2 blah)
-
- $finditem(booya blah) returns 0
- $ifinditem(booya blah) returns 1
- $ifindfirst(booya blah) returns 0
- $finditem(booya Blah) returns -1
- $finditem(foobar blah) returns -2
-
- See Also:
- Arrays(7); getitem(6); setitem(6)
-
-