Finds the last instance of a pattern within a string.

```lua
string.findlast("str", "pattern", plain)
```

### Parameters ###

`str` is the string to be searched. `pattern` is the pattern to search for; it may use Lua's pattern matching syntax. If `plain` is true, no pattern matching will be performed (faster).


### Return Value ###

The matching pattern, if found, or nil if there were no matches.


### Availability ###

Premake 4.0 or later.