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
d
2
c 2
d2
day
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-cpcre.php3?s=42%2043&2&3&8

#include <stdio.h>
#include <string.h>
#include <pcre.h>

int main(int argc, char **argv)
{
  const char *error;
  int erroffset;
  int ovector[186];
  char re[8192]="";
  char txt[]="42 43";

  char re1[]="(\\d)";	// Any Single Digit 1
  strcat(re,re1);
  char re2[]="((?:(?:[0-2]?\\d{1})|(?:[3][01]{1})))(?![\\d])";	// Day 1
  strcat(re,re2);
  char re3[]=".*?";	// Non-greedy match on filler
  strcat(re,re3);
  char re4[]="(\\d+)";	// Integer Number 1
  strcat(re,re4);

  pcre *r =  pcre_compile(re, PCRE_CASELESS|PCRE_DOTALL, &error, &erroffset, NULL);
  int rc = pcre_exec(r, NULL, txt, strlen(txt), 0, 0, ovector, 186);
  if (rc>0)
  {
      char d1[1024];
      pcre_copy_substring(txt, ovector, rc,1,d1, 1024);
      printf("(%s)",d1);
      char day1[1024];
      pcre_copy_substring(txt, ovector, rc,2,day1, 1024);
      printf("(%s)",day1);
      char int1[1024];
      pcre_copy_substring(txt, ovector, rc,3,int1, 1024);
      printf("(%s)",int1);
      puts("\n");
  }
}

//-----
// 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/
//
// Note that on Linux systems PCRE is often already installed in /usr/lib/libpcre* or /usr/local/lib/libpcre*. 
//
// Compile and on Unix using:
// # gcc -lpcre x.c
// # ./a.out
//
 
 
 
 
Feedback
::  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
:: alert('haha');Fri, 3 Jul 2015 06:23PM
::  alert("yeah")Fri, 3 Jul 2015 06:24PM
:: println("this rules thanks :)");Fri, 3 Jul 2015 06:24PM
 
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