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| Pattern Constraints in TDS Message set |
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| kishoreleads |
 Posted: Fri Jun 06, 2008 7:21 am Post subject: Pattern Constraints in TDS Message set |
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Newbie
Joined: 07 Apr 2008
Posts: 5
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Hi,
I am having difficulty in understanding the pattern constraints of a particular field in IBM SWIFT message set.
Can someone help understand the pattern constraints.
*([a-zA-Z0-9/\-\?:\(\)\.,'\+\{\}]+ *)+
Also if you can share some documentation on this pattern constraints that would be very helpful.
Thanks,
Kishore
_________________
Thanks,
Kishore |
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| kishoreleads |
| Posted: Fri Jun 06, 2008 8:15 am Post subject: |
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Newbie
Joined: 07 Apr 2008
Posts: 5
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Hello,
Following is my understanding. Please correct me if I am wrong:
Let X = [a-zA-Z0-9/\-\?:\(\)\.,'\+\{\}]
Then X can be any Single character with the following values
a-z --> lower case characters
A-Z --> Upper case characters
0-9 --> Integers
/ --> Forward slash
\- --> Hyphen
\? --> question mark
: --> colon
\( --> Opening parentheses
\) --> Closing parentheses
\. --> Period
, --> comma
` --> Apostrophe
\+ --> Plus symbol
\{ --> Opening curly brace
\} --> Closing curly brace
let Y = [a-zA-Z0-9/\-\?:\(\)\.,'\+\{\}]+
which is equal to Y = [X]+ i.e. X repeats 1 or more times
Let Z = Y* --> Y can repeat for 0 or more times
(Z)+ --> Whole group (Z) can repeat for 1 or more times
_________________
Thanks,
Kishore |
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