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Table of Contents
Pattern matching
TapeTrack has powerful pattern matching functionality that can be utilized globally in TapeMaster.
String Pattern Matching
To illustrate the effects of where and how the asterisk wildcard affects search results all examples will be performed against the following volume values.
100000L4, 100001L4, 100002L4, 100003L4, 100004L4, 100012L4, 100022L4, 200000L5, 200012L5, 200022L5
Asterisk (*)
The Asterisk is used as a wildcard to allow string matching in multiple positions and variable string lengths. image
- An Asterisk before a set of characters will show all items that end with those characters.
Using the filter *L4 will show all volume ID's ending in L4.
- An Asterisk after a set of characters will show all items that begin with those characters.
- If used on its own, the Asterisk will display all data in that column.
- Using two Asterisks, one on either side of a character or set of characters will show all items containing that character or set of characters at any character position.
The Asterisk does not need to be used when entering a full Object-ID or when searching for Flags in the Volume List.
Question Mark (?)
The Question Mark is used to indicate that any character can exist in a specific character position. image
Square Brackets ([ ])
Square Brackets can be used to provide parameters for a specific character position that are longer than one character. There are four different configurations:
Multiple Characters
When multiple characters are put in a Square Bracket, any of the characters listed will be displayed at the specified character position. image
Vertical Bar (|)
When two or more characters are placed between Square Brackets and separated by Vertical Bars, the Vertical Bar will act as the word “OR” displaying any of the characters. image
Hyphen (-)
When two characters are placed between Square Brackets and separated by a Hyphen, any character alphanumerically between the two characters will display. image
Exclamation Point (!)
When the Exclamation Point is placed immediately following the left Square Bracket in a set of Square Brackets, any character except for the characters listed after the Exclamation Point will display. This functionality also works with Multiple Characters, Vertical Bars, and Hyphens. image
Date Pattern Matching
TapeTrack Date Format
TapeTrack allows you to represent dates both as literal date values and date calculations.
Syntax
- YYYY-MM-DD: ISO Date format
- *: Today
- *[+-]x: Today + or - x days
- M: The first day of this month
- m: The last day of this month
- Y: The first day of the year
- y: The last day of the year
- M+-x: The first day of the month + or - x months
- M+-x+-y: The first day of the month + or - x months + or - y days
- Y+-x: The first day of the year + or - x months
- Y+-x+-y: The first day of the year + or - x years + or - y months
- Y+-x+-y+-z: The first day of the year + or - x years + or - y months + or - x days
Examples
| *-10 | 10 days ago |
| Y | the beginning of this year |
| M-0- | the last day of last month |
| y-1 | the last day of last year |
| Y-1+3-1 | the last day of February last year |