need regular expression for comma delimited list

[billsahiker]

I cannot get anything to validate a comma delimited list of stock
symbols, like "IBM, MSFT,INTC). symbols are alphanumeric with a maxium
length of 5. I want to block multiple, adjacent commas, and allow up
to two blank spaces between symbols.
The following did not work:
(\w{1,5}(, *)?)*

[noagbodjivictor]

>(\w{1,5}(, *)?)*

Maybe (\w{1,5}(,)?(\s +)?)* ?
You need a regular expression validator. I used to know one, but...

[-Lost]

no************* @gmail.com wrote:

>(\w{1,5}(, *)?)*

Maybe (\w{1,5}(,)?(\s +)?)* ?
You need a regular expression validator. I used to know one, but...

Regex Coach?

--
-Lost
Remove the extra words to reply by e-mail. Don't e-mail me. I am
kidding. No I am not.

[Duncan Booth]

bi*********@yah oo.com wrote:

I cannot get anything to validate a comma delimited list of stock
symbols, like "IBM, MSFT,INTC). symbols are alphanumeric with a maxium
length of 5. I want to block multiple, adjacent commas, and allow up
to two blank spaces between symbols.
The following did not work:
(\w{1,5}(, *)?)*

It generally helps if you post what you actually tried and say exactly how
it failed to work. For example if you did:

/(\w{1,5}(, *)?)*/.test(somestrin g)

that will always evaluate to true because your expression matches an empty
string: you need to anchor it to the beginning and end of the string to do
any useful validation (and probably also you should insist on at least one
symbol). So something like this may be what you want:

/^\w{1,5}(?:,\s* \w{1,5})*$/.test(somestrin g)

On the other hand, if your problem was that:

/(\w{1,5}(, *)?)*/.exec('IBM, MSFT,INTC')

only saves the last of the symbols in a group then that would be a
misunderstandin g of how groups work.

[Georgi Naumov]

Hi.
I hope this function will help you.
/**
* @author
* Georgi Naumov
*/
function testString(aVal ue)
{
/****
* This pattern will match
* only spaces between stock
* symbols and commas. If you
* use the \s shorthand
* character class this will
* be match "any white space".
*/
var re = /^\u0020*\w{1,5} \u0020*(?:,\u00 20*\w{1,5}\u002 0*)*$/;
return aValue.match(re ) != null;
}
Best regards.
On May 30, 10:48 am, Duncan Booth <duncan.bo...@i nvalid.invalid>
wrote:

billsahi...@yah oo.com wrote:

I cannot get anything to validate a comma delimited list of stock
symbols, like "IBM, MSFT,INTC). symbols are alphanumeric with a maxium
length of 5. I want to block multiple, adjacent commas, and allow up
to two blank spaces between symbols.
The following did not work:
(\w{1,5}(, *)?)*

It generally helps if you post what you actually tried and say exactly how
it failed to work. For example if you did:

/(\w{1,5}(, *)?)*/.test(somestrin g)

that will always evaluate to true because your expression matches an empty
string: you need to anchor it to the beginning and end of the string to do
any useful validation (and probably also you should insist on at least one
symbol). So something like this may be what you want:

/^\w{1,5}(?:,\s* \w{1,5})*$/.test(somestrin g)

On the other hand, if your problem was that:

/(\w{1,5}(, *)?)*/.exec('IBM, MSFT,INTC')

only saves the last of the symbols in a group then that would be a
misunderstandin g of how groups work.

[Georgi Naumov]

On May 30, 11:00 am, Georgi Naumov <gonau...@gmail .comwrote:

Hi.
I hope this function will help you.
/**
* @author
* Georgi Naumov
*/
function testString(aVal ue)
{
/****
* This pattern will match
* only spaces between stock
* symbols and commas. If you
* use the \s shorthand
* character class this will
* be match "any white space".
*/
var re = /^\u0020*\w{1,5} \u0020*(?:,\u00 20*\w{1,5}\u002 0*)*$/;
return aValue.match(re ) != null;}

Best regards.
On May 30, 10:48 am, Duncan Booth <duncan.bo...@i nvalid.invalid>
wrote:

billsahi...@yah oo.com wrote:

I cannot get anything to validate a comma delimited list of stock
symbols, like "IBM, MSFT,INTC). symbols are alphanumeric with a maxium
length of 5. I want to block multiple, adjacent commas, and allow up
to two blank spaces between symbols.
The following did not work:
(\w{1,5}(, *)?)*

It generally helps if you post what you actually tried and say exactly how
it failed to work. For example if you did:

/(\w{1,5}(, *)?)*/.test(somestrin g)

I fixed the pattern. Because my english is not very well
i was miss "and allow up
to two blank spaces between symbols".
^\u0020*\w{1,5} \u0020*(?:,\u00 20*\w{1,5}\u002 0*)*$
This pattern will match "between 0 and unlimited numbers
of spaces". This is correct pattern:

^(?:\u0020{1,2} )?\w{1,5}(?:\u0 020{1,2})?(?:,( ?:\u0020{1,2})? \w{1,5}(?:
\u0020{1,2})?)* $

>

that will always evaluate to true because your expression matches an empty
string: you need to anchor it to the beginning and end of the string to do
any useful validation (and probably also you should insist on at least one
symbol). So something like this may be what you want:

/^\w{1,5}(?:,\s* \w{1,5})*$/.test(somestrin g)

On the other hand, if your problem was that:

/(\w{1,5}(, *)?)*/.exec('IBM, MSFT,INTC')

only saves the last of the symbols in a group then that would be a
misunderstandin g of how groups work.

[billsahiker]

On May 30, 11:00 am, Georgi Naumov <gonau...@gmail .comwrote:
- Hide quoted text -
- Show quoted text -

Hi.
I hope this function will help you.
/**
* @author
* Georgi Naumov
*/
function testString(aVal ue)
{
/****
* This pattern will match
* only spaces between stock
* symbols and commas. If you
* use the \s shorthand
* character class this will
* be match "any white space".
*/
var re = /^\u0020*\w{1,5} \u0020*(?:,\u00 20*\w{1,5}\u002 0*)*$/;
return aValue.match(re ) != null;}

Best regards.
On May 30, 10:48 am, Duncan Booth <duncan.bo...@i nvalid.invalid>
wrote:

billsahi...@yah oo.com wrote:

I cannot get anything to validate a comma delimited list of stock
symbols, like "IBM, MSFT,INTC). symbols are alphanumeric with a maxium
length of 5. I want to block multiple, adjacent commas, and allow up
to two blank spaces between symbols.
The following did not work:
(\w{1,5}(, *)?)*

It generally helps if you post what you actually tried and say exactly how
it failed to work. For example if you did:

/(\w{1,5}(, *)?)*/.test(somestrin g)

Thank you. It works.

I fixed the pattern. Because my english is not very well
i was miss "and allow up
to two blank spaces between symbols".
^\u0020*\w{1,5} \u0020*(?:,\u00 20*\w{1,5}\u002 0*)*$
This pattern will match "between 0 and unlimited numbers
of spaces". This is correct pattern:

^(?:\u0020{1,2} )?\w{1,5}(?:\u0 020{1,2})?(?:,( ?:\u0020{1,2})? \w{1,5}
(?:
\u0020{1,2})?)* $