Omron V460-H User Manual page 137

4 WebLink Configuration
HH
*TEST looks for the text "TEST" in barcode data with any number of characters before it, but "TEST" at
the end.
TEST* looks for the text "TEST" at the beginning of the barcode data, with any number of characters after
it.
If you had a barcode with data 1234567 and tried to match to the entire data string using 123*, you would
have a successful match.
If you tried to match that same barcode data using *123, you would be unsuccessful, because 123
appears at the beginning of the barcode and this data string matches with 123 at the end of the barcode.
It's important to remember that the wildcard character
characters.
Now try to match a portion of the barcode you're scanning by using *YOURTEXT*. If the text
"YOURTEXT" appears somewhere in the middle of the barcode, the match will be successful.
A placeholder represents one character of any type. For example, ???TEST tries to match a barcode
that contains three characters of any type followed by the text "TEST". ???TE?T attempts to match a
barcode that contains an unknown character where the 'S' previously appeared.
Placeholders and wildcards can also be used together in the Match String Database input fields. The
concepts of both are still the same: a wildcard represents zero or more unknown characters, and a
placeholder represents exactly one unknown character.
An example of a complex match using wildcards is shown below. Recall that wildcards and placeholders
*
?
are and by default, but they can be redefined.
The barcode data the example above was attempting to match was EN-1234_AreYouReadingThis
en_US 1234.
The logic of this match is diagrammed below.
[ANY AMOUNT OF CHARACTERS][ARE][ANY AMOUNT OF CHARACTERS][THIS][ANY AMOUNT
OF CHARACTERS][US][5 CHARACTERS]
*
= Any amount of characters (EN-1234_ in this case)
Are
*
= Any amount of characters (YouReading in this case)
This
4-54
*
always stands for zero or more unknown
V460-H Industrial Handheld DPM Reader User Manual