[Delhi-pm] Need a help in a code

[Gora Mohanty]

Dear Ravi,

I think that you are taking entirely the wrong approach to the problem, and
it would help if you stated your requirements up-front rather than
presenting something that will very likely not work.

* Are you even able to run your regex pattern-matching against a string of
"around millions of character"? In any reasonable amount of time, and with
reasonable resources?

* Even assuming that the above would work, did you try searching Google for
a solution to your issue:

https://www.google.co.in/search?client=ubuntu&channel=fs&q=regex+pattern+matching+large+string&ie=utf-8&oe=utf-8&gfe_rd=cr&ei=YnPfVezgGqTv8wf0vaDYAg#channel=fs&q=perl+regex+iterate+over+number+of+matches
might be of help (I am actively restraining myself from a lmgtfy.com link).

Regards,
Gora


On 27 August 2015 at 16:32, RAVI KUMAR <ravi.kumar at btech2009.iitgn.ac.in>
wrote:

> Dear Admin,
> I would like to know in pattern matching when I am giving this to search
> in a big sequence file of "acgt"(around millions of character)
>
> *$dna =  gg+[actg]{1,7}gg+[agct]{1,7}gg+[agct]{1,7}gg+*
>
> *$longprotein1 =~ /(\w)*?$dna/g    .... ( for position for particular
> match)*
>
> So it is gonna give me all possible matches. Suppose I get like 100's of
> matches, I would like to know all those 100 matches. Eg. What is my 51st
> search and how many characters are there in it etc.
>
> Could you please help me through this? My research is related to genetic
> causes of cancer and I need this information very urgently. Lots of work is
> in abeyance due to this problem.
>
> Greatly appreciate your valuable time.
>
> Thank You
>
>
> warm Regards,
> Ravi Kumar,
>
> Ph. no. +917878317397
>
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> Delhi-pm at pm.org
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>
>
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