Range Strings
Range strings are used to briefly describe a range of values.
Range String Syntax
( or [ + Number + , + Number + ) or ]
Where supported, you can use variables in place of numbers.
Examples
| Example | Description |
|---|---|
[1,3] |
Square brackets are inclusive. This matches 1, 2 and 3. |
(1,3] |
Parentheses are exclusive. This matches 2 and 3. |
[1,3) |
Matches 1 and 2
|
(1,3) |
Matches 2 (This is functionally equivalent to 2) |
[1,$last_attempt) |
Matches from 1 to the value of $last_attempt
|