Vector_lastIndexOf

 Homepage Containers

Searches for the last occurrence, starting with startIndex, for which the specified function returns the search value, and returns the index for this element.

foundAt := Vector_lastIndexOf(VectorObject, searchValue, startIndex = 0, useFunction = "getValue", CaseSensitive = false)

Parameters

VectorObject The Vector object to use for the current operation.
searchValue The search value to test against.
startIndex The index to start searching from. If omitted, the search starts with the last item.
useFunction

Function whose return is compared. The actual function called is %ClassName%_%useFunction%, with ClassName the class name for the current iteration's object.

If useFunction is the empty string, no function is called, and the object itself is compared.
CaseSensitive If omitted or false, the seach is not case sensitive (the method of insensitivity depends on StringCaseSense); otherwise, the case must match exactly.

Return Value

The index for the last matching element, starting with startIndex.

If there is no such element, the function returns 0.


The function's return can be used as a quasi-boolean value; the statement if Vector_lastIndexOf(...) would be true if an element is found, and false otherwise.

Remarks

If VectorObject is NULL (0 or blank), the empty string is returned, to indicate an error.

If an element is unset and useFunction is not the empty string, it will be skipped during the search.

By default, comparisons for equality are made using the case-insensitive equals (=). Either specify CaseSensitive to be true, or call Vector_SlastIndexOf omitting the CaseSensitive parameter to perform a case-sensitive comparasion (==).

Index values start at 1 and "wrap".

Related

Vector_indexOf, Vector_SlastIndexOf, Vector_regexLastIndexOf

Vector_findMatch, Vector_findLastMatch

Vector_findLastObject, Vector_lastUnset

Vector

Examples

;Creates a new Vector with the default parameters.
myVector := Vector_new()

;Creates some String objects
aString1 := String_new("Value1")
aString2 := String_new("Value2")
aString3 := String_new("Value1")

;Adds the Strings to myVector
Vector_add(myVector, aString1)
Vector_add(myVector, aString2)
Vector_add(myVector, aString3)

;Searches for "Value1" (uses the default function, "getValue").
searchValue := "Value1"

if foundAt := Vector_lastIndexOf(myVector, searchValue, 2)
{
    ;foundAt contains the index for the element.
    MsgBox, % """" . searchValue . """ is found at index " foundAt "."
}
else
{
    ;foundAt = 0 (i.e. not found)
    MsgBox, % "Search value was not found."
}

Homepage  |  Containers