or, if the alpha must always be a capital, leave out the a-z
... or, if SYS can also be lowercase, you can make it:
^[sS][yY][sS]\d{4}$
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Question
Validate text formats with Regex
I need to know the formats to use with RegEx to validate the following text formats
Eg. Alpha followed by 4 numerics
A####
and specific prefixes for a format (The value SYS followed by 4 numerics)
SYS####
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Answers
Just use \d for a numeric. [0-9] is the same, but personally, \d (d=digit) is a bit less typing and hence I like it better ;)
Now, the alpha's need to be multiplied and that's the {4}, which must be placed after the part that you want to multiply:
^\d[a-zA-Z]{4}$
me
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by: abelPosted on 2009-03-23 at 09:54:22ID: 23959762
Like so:
> Eg. Alpha followed by 4 numerics
^[a-zA-Z]\d{4}$
>and
^SYS\d{4}$