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this printed all the rows of the input<br />
thanks
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this printed all the rows of the input
thanks

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<div class="content wysiwyg-content">
<pre><code id="code-10-28136026-1">[9/13/2011 6:36:41 PM] person1: Bob, this is AJ, please add me.
[9/14/2011 4:51:59 PM] person1: Hello
[9/15/2011 2:44:13 AM] person2: 
[1/6/2012 10:57:09 AM] person1: Bob, you there
[1/6/2012 10:57:11 AM] person1: It is AJ
[1/6/2012 10:57:34 AM] person2: hi AJ
[1/6/2012 11:00:56 AM] person1: Happy New Year
[1/6/2012 11:00:58 AM] person1: How are you doing
[1/6/2012 11:01:09 AM] person2: happy new year to you too</code></pre>
<br />
this is a skype chat log<br />
can be <br />
$string <br />
or <br />
input.txt<br />
<br />
want <br />
datetime, <br />
name (person1, person2)<br />
message
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(CODE)

this is a skype chat log
can be 
$string 
or 
input.txt

want 
datetime, 
name (person1, person2)
message

regex to get get 3 elements from a $string

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A regular expression ("regex") is a sequence of characters that define a search pattern, mainly for use in pattern matching with strings, or string matching, i.e. "find and replace"-like operations. Regular expression processors are found in several search engines, search and replace dialogs of several word processors and text editors, and in the command lines of text processing utilities, such as sed and AWK. Many programming languages provide regular expression capabilities, some built-in, for example Perl, JavaScript, Ruby, AWK, and Tcl, and others via a standard library, for example .NET languages, Java, Python and C++ (since C++11). Most other languages offer regular expressions via a library.