I am using the following to validate user input of a comma delimited
list of stock symbols, separated by a comma and one or two spaces:
^(?:\u0020{1,2} )?\w{1,5}(?:\u0 020{1,2})?(?:,( ?:\u0020{1,2})? \w{1,5}(?:
\u0020{1,2})?)* $
It works, but I need to allow stock indices, which begin with ^ (ascii
94). How can I do that?
sample input:
MSFT, INTC,^DJI,LU, SIRI
bill
2  1551 
I figured it out:
^(?:\u0020{1,2} )?\^?\w{1,5}(?: \u0020{1,2})?(? :,(?:\u0020{1,2 })?\^?
\w{1,5}(?:\u002 0{1,2})?)*$
but could someone explain what the colon represents? I found a regex
reference but the colon is not listed.
On Jun 14, 11:34 am, billsahi...@yah oo.com wrote:
I figured it out:
^(?:\u0020{1,2} )?\^?\w{1,5}(?: \u0020{1,2})?(? :,(?:\u0020{1,2 })?\^?
\w{1,5}(?:\u002 0{1,2})?)*$
but could someone explain what the colon represents? I found a regex
reference but the colon is not listed.
It seems that is should be possible to simplify the expression
substantially by removing the requirement for lookahead (?:), along
the lines of:
/^\^?\w{1,5}(,\s {0,2}\^?\w{1,5} )*$/
Note that the expression above allows for the case where there are no
spaces(tabs, etc.) following the ",", as per the example data that was
provided.
--
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