~~NOTOC~~
<=[[4rpl:start| Index]] \\
<=[[4rpl:start#strings| Strings]]


====== Substring ======
Substring (<-aString <-startAt <-length) ->aPiece

===== Description =====
Extracts a portion of a string into a new item on the stack.

The command has 3 arguments. First the string to be examined, second the starting position of the substring within the original string, starting from offset 0 (zero) and thirdly the length of the extracted string.

===== Examples =====
<code 4rpl>
Trace( Substring("Particle" 1 3)) # Prints "art"
</code>
<=[[4rpl:start| Index]]