Hello All,

Would like to know what is wrong with the code (below) that I wrote to extract group of lines that match a set of patterns (including the lines that match the pattern)

code is here: 

if ($_ =~ /^E/gi || $_ =~ /gmake.*/gi) {
 push (@errors, $_)
 }

[download]

and the lines from which I need to extract text is here:

I have updated since the lines do not start with that special character (carat) at the line beginning (as posted intially) 

E : abcdfcsds 1387382 43243
      ijigje jg445 3u4 (53545545)
E : abcdfcsds 1387382 43243
      ijigje jg445 3u4 (53545545)
E : abcdfcsds 1387382 43243
      ijigje jg445 3u4 (53545545)
E : abcdfcsds 1387382 43243
      ijigje jg445 3u4 (53545545)
E : abcdfcsds 1387382 43243
      ijigje jg445 3u4 (53545545)

gmake : **** build failed fdjgu43uffer Error 1

[download]

With this code, am able to extract the last line only (i.e. the one starts with ^E).

Could anyone tell me what is wrong with regular expression ?

thanks in advance

/Ram

Edited by planetscape - swapped out some p tags for some code tags

In reply to Extraction of set of lines using regular expression by ramthen

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.