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Regular Expression for Address field...

I know this is simple question, but I am really new to Regular expression...
I need a regular expression to validate my address field, the condns are...
1. Address field must not start with and empty space (also should not be empty)
2. Address field can contain any alpha numeric characters (Only Capital Letters) and any kind of symbols and it should start with one of the Alphanumeric charcters
3. It can contain any number of spaces in between the words (just like a sentence...)
4. It shud not exceed 200 char.

Thank You,
Steve
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steve_mick972
Asked:
steve_mick972
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1 Solution
 
Ravi SinghSenior Software EngineerCommented:
Hi, try the following regex:

^[A-Z0-9]{1}[^a-z]{1,199}$
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steve_mick972Author Commented:
That works!!! thanx,
I have one more question...  I have Zip4 field but that field can be either empty or if there is any data it should conform to US Zip4 format (like should not exceed 4 digits etc.,)
Can you please help me out  with that...

Thank You,
Steve
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SystemExpertCommented:
Hi

Use Numeric validation for ZIP

and use following javascript function 9inside call ValidateNumber [any  numeric validation and i hope you write this]

function ZIPNoValidate()
{
                  
var Result = true;
var lblZIPNo = document.getElementById('lblZIPNo');
var ZIPNo =  document.getElementById('txtZIPNo').value;
//Checking blank
Result = BlankValue(ZIPNo);
if(Result)//Not blank
{
                        
      Result= ValidateNumber(ZIPNo);
      if(Result)//true
      {
            //coloring
            lblZIPNo.className = "fields";
            Result= true;
      }
      else//false
      {
            //coloring
            lblZIPNo.className = "error";
            Result = false;
      }
}
else//blank
{
      //coloring
      lblZIPNo.className = "error";
      Result = false;
}
return  Result;
}

thanks
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Ravi SinghSenior Software EngineerCommented:
Hi, can you give example Zip4 codes? I don't live in the US and can't find anything concrete regarding their format.
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steve_mick972Author Commented:
US Zip4 codes should be only 4 digits which should be in 0-9 range...
the problem is, I can write simple Reg.Expr to achieve this... but my data is like that, it can have empty data in that field or it contain zip4 number, I have to validate the field such that it should accept the empty field and if there is anything in that field it should be valid zip4 number...

Some examples for US zip4s are: 2569, 0128, 0065, 7894

I hope you understand my problem...

Thank You,
Steve
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Ravi SinghSenior Software EngineerCommented:
Hi Steve, try the following to validate the zip code

^[0-9]{4}|\s*$

The zip code can either be 4 numeric digits or zero or more empty spaces.

You can either use the above regex or first test to see if the string is empty by using javascript (or whatever) and if it isnt, you can use the simple regex "^[0-9]{4}$" to check if its a valid zip code. Also, it might be a good idea to trim the input string in case the user inputs strings such as "   8871", if that happens and you use the above regex then it'll only match the preceding empty space and not the zip code.
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