====== StrReplace ======

<code autorun>
StrReplace(<str>, <oldstr> [, <newstr> [, <casesense>]])
StrReplace [/S] <VAR> <str> <oldstr> [<newstr>]
</code>

Returns a string in which the old substring has been replaced by the new substring.

**Parameters**
|< 100% 15% >|
|str|Source string.|
|oldstr|The substring to search.|
|newstr|The found string will be replaced with this string.|
|casesense|//Optional.// Case sensitive search (for feature), 0/1.|

**Switches**

|< 100% 15% >|
|/S|Case-sensitive search (for command).|

**Return value**

If successful, the function returns a string with substrings replaced. If the substring is not found, or if the string or substring is empty, the function returns the original string.