hi i had string which is the contents of a file and i need a regular expression to match and replace the following pattern.

string: 
OT;
some line
/*asas*/        ##here comments should be removed
/*asdas*/  #OT;.....RT;should be replaced with OT;.....DT;OT.......RT;
some line
RT;

some lines 
somlelines

OT;
some line
/*asas*/
/*asdas*/
some line
RT;

what i need is like 

OT;
some line1
some line2
DT;
OT;
some line1
some line2
RT;

some lines3 
somlelines4

OT;
some line5
some line6
DT:
OT;
some line5
some line6
RT;

if($string=$string=~ s/OT;(.*?)(/*(.*?)*/)*(.*?)RT;/OT;$1$4DT;\nOT;$1$
+4RT;/gsr)
{
           print "modified string".$string;
        }

[download]

please help me out

In reply to Need regular expression by praveenchappa

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.