txt 2 re
knowing is obsolete :: regular expression generator (perl php python java javascript coldfusion c c++ ruby vb vbscript j# c# c++.net vb.net)
 
 
 
Enter the string that you want to use a regular expression on:
1
   
 
Select the elements that you want to extract to run regular expression generator:
2
4
c 4
d4
2
c 
d2
day2
int42
_
c _
ws
4
c 4
d4
3
c 3
d3
day3
int
< Source String
What to click?  extract any integer in this position
extract this integer (2006) in this position
 
3C++ regular expression program that extracts the selected elements from the entered string:
Perl PHP Python Java Javascript ColdFusion C [C++] Ruby VB VBScript J#.net C#.net C++.net VB.net 
 
// URL that generated this code:
// http://txt2re.com/index-c++.php3?s=42%2043&2&11&5

#include <stdlib.h>
#include <string>
#include <iostream>
#include <pme.h>

int main()
{
  std::string txt="42 43";

  std::string re1=".*?";	// Non-greedy match on filler
  std::string re2=".";	// Uninteresting: c
  std::string re3="(.)";	// Any Single Character 1
  std::string re4="(\\s+)";	// White Space 1
  std::string re5="(\\d+)";	// Integer Number 1

  PME re(re1+re2+re3+re4+re5,"gims");
  int n;
  if ((n=re.match(txt))>0)
  {
      std::string c1=re[1].c_str();
      std::string ws1=re[2].c_str();
      std::string int1=re[3].c_str();
      std::cout << "("<<c1<<")"<<"("<<ws1<<")"<<"("<<int1<<")"<< std::endl;
  }
}

//-----
// C++ does not provide a regular expression feature as standard.
//
// To run this code you will need to first download and install
// the PCRE library from http://www.pcre.org/ and 
// the PME library from ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/Contrib/
// 
// Note that on Linux systems PCRE is often already installed in /usr/lib/libpcre* or /usr/local/lib/libpcre*. 
//
// Compile and run on Unix using 
// # c++ x.cpp -lpme -lpcre 
// # ./a.out
// 
 
 
 
 
Feedback
comentario::  Wed, 24 Jun 2015 03:43PM
::  Wed, 24 Jun 2015 11:42PM
::  Thu, 25 Jun 2015 10:35AM
::  Thu, 25 Jun 2015 02:12PM
goganavt:: coolThu, 25 Jun 2015 02:12PM
:-/:: cool but how to use itThu, 25 Jun 2015 06:25PM
:: amazing. thanksThu, 25 Jun 2015 11:54PM
:D:: great, but a little unintuitiveFri, 26 Jun 2015 02:00AM
test:: alert('haha');Fri, 26 Jun 2015 07:49AM
1|2|3|4|5:: 12345Fri, 26 Jun 2015 08:39AM
Anonymous:: Amazing!! Saved me 2 hours of learning and coding.Fri, 26 Jun 2015 05:21PM
d::  Sat, 27 Jun 2015 03:51AM
:: \Sat, 27 Jun 2015 03:51AM
:: <Sat, 27 Jun 2015 03:52AM
:: <script>alert("yeah")<\script>Sat, 27 Jun 2015 03:53AM
::  Mon, 29 Jun 2015 09:09AM
::  Mon, 29 Jun 2015 10:40PM
:: alert("yeah")Mon, 29 Jun 2015 11:50PM
:: alert("yeah")Mon, 29 Jun 2015 11:50PM
:: function(){alert("yeah")}();Mon, 29 Jun 2015 11:51PM
:: function(){alert("yeah")}();Mon, 29 Jun 2015 11:51PM
::  Tue, 30 Jun 2015 10:58AM
::  Tue, 30 Jun 2015 10:58AM
::  Tue, 30 Jun 2015 11:09AM
::  Tue, 30 Jun 2015 01:13PM
::  Tue, 30 Jun 2015 03:55PM
::  Tue, 30 Jun 2015 04:59PM
:: sysout("yeah right");Tue, 30 Jun 2015 04:59PM
zakky:: println("this rules thanks :)");Tue, 30 Jun 2015 05:27PM
::  Tue, 30 Jun 2015 05:39PM
::  Wed, 1 Jul 2015 03:51AM
::  Wed, 1 Jul 2015 09:52AM
::  Thu, 2 Jul 2015 01:38AM
::  Thu, 2 Jul 2015 04:07AM
:: javaThu, 2 Jul 2015 05:02AM
::  Thu, 2 Jul 2015 10:21AM
vmp:: thats cool, big thx^^Thu, 2 Jul 2015 03:03PM
::  Fri, 3 Jul 2015 01:53AM
::  Fri, 3 Jul 2015 01:53AM
::  Fri, 3 Jul 2015 06:17AM
::  Fri, 3 Jul 2015 06:17AM
::  Fri, 3 Jul 2015 06:17AM
:: people trying to hack this page up in hereFri, 3 Jul 2015 07:31AM
:: GreatFri, 3 Jul 2015 12:09PM
 
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