Datalogic AV7000 Reference Manual

E-GENIUS
109
4
Field Name
Action/Definition
The regular expression algorithms allow checking for conditional barcode
information based on specific expression functions (see below). A pattern matching
string is programmable for each barcode used in the system, and if the barcodes
read do not match the defined string, a No Read Event will be returned.
It is possible to define the matching string by inserting Regular Expressions,
including but not limited to the following:
. – (dot) Matches any character
* - (asterisk) Matches 0 or more of the preceding character.
+ - (plus) Matches 1 or more of the preceding character.
\d - Matches any single digit
\w - Matches any word character (alphanumeric & underscore).
[XYZ] - Matches any single character from the character class.
[XYZ]+ - Matches one or more of any of the characters in the set.
$ - Matches the end of the string.
[^a-z] - When inside of a character class, the ^ means NOT; in this case,
match anything that is NOT a lowercase letter.
Examples:
1. Match a code starting with 123 string and followed by any string of
characters:
 Match String = 123.*
 Example Code = 123aC53
2. Match a code ending with 123 string preceded by any string of
characters:
 Match String = .*123
 Example Code = 41pO123
3. Match a code having 123 string in any position: 0.
 Match String = .*123.*
 Example Code = 41pO123253
NOTE: For Codabar codes the start/stop
characters must be considered in the match
conditions.
For all codes which use check digits, if the

Datalogic AV7000 Specifications

General

Brand	Datalogic
Model	AV7000
Category	Digital Camera
Language	English