[program-l] Re: Regular Expression Question
- From: "Travis Roth" <travis@xxxxxxxxxxxxxx>
- To: <program-l@xxxxxxxxxxxxx>
- Date: Sun, 7 Oct 2012 08:35:59 -0500
Hello Rick,
The current expression would match more than one period because the
expression is not ended, e.g., the $ sign is not used to say additional
matching is not allowed.
According to your specifications (only for upper case letters) this should
work.
^[A-Z][A-Z]*[\-\.]?[A-Z]*$
From: program-l-bounce@xxxxxxxxxxxxx [mailto:program-l-bounce@xxxxxxxxxxxxx]
On Behalf Of RicksPlace
Sent: Sunday, October 07, 2012 3:43 AM
To: program-l@xxxxxxxxxxxxx
Subject: [program-l] Re: Regular Expression Question
Hi Travis:
The slash was a mistake since this is a .net app.
What I am trying to do:
Ensure the first character is a letter (Case should not matter or I can
enforce upper case as i did in my test expression)
There may be no special characters in a ticker symbol like:
MSFT or KMI or PPG
Or there may be one period in a ticker symbol like:
MSFT.OB or PPG.XYZ
There can not be more than one period if there are any in the ticker.
This would be invalid MS.FT.OB as there are 2 periods as would be MS..FT or
MSFT.. two periods are not allowed only 0 or 1.
Finally there can be 0 to 1 dashes like:
MSFT-BB or even MSFT-BB.OB.
Again MS-FT-OB would be bad because of 2 dashes in the string.
No other characters are allowed in the string only letters, perhaps one
period and, or, perhaps one dash.
I couldnt get the filters to work yesterday so just checked the first
character to ensure it was a letter - that worked.
I think the [A-Z] also works but the \. allowed more than one period like:
MS..FT or MSFT..OB
Rick USA
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