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 2
d2
day2
int42
_
c _
ws_
4
c 4
d4
3
c 3
d3
day3
int43
< 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&9999

#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[]="";	//  1
  strcat(re,re1);
  char re2[]=".*?";	// Non-greedy match on filler
  strcat(re,re2);
  char re3[]="(?:(?:[0-2]?\\d{1})|(?:[3][01]{1}))(?![\\d])";	// Uninteresting: day
  strcat(re,re3);
  char re4[]="((?:(?:[0-2]?\\d{1})|(?:[3][01]{1})))(?![\\d])";	// Day 1
  strcat(re,re4);
  char re5[]=".*?";	// Non-greedy match on filler
  strcat(re,re5);
  char re6[]="(\\d+)";	// Integer Number 1
  strcat(re,re6);

  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 1[1024];
      pcre_copy_substring(txt, ovector, rc,1,1, 1024);
      printf("(%s)",1);
      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
Kuntal:: You saved my Day thanks a lot!!!!!!!!!!!!!Fri, 20 Mar 2015 02:14PM
::  Fri, 20 Mar 2015 02:19PM
::  Fri, 20 Mar 2015 04:08PM
::  Fri, 20 Mar 2015 08:28PM
::  Sat, 21 Mar 2015 03:12AM
::  Sat, 21 Mar 2015 01:34PM
::  Sat, 21 Mar 2015 01:34PM
::  Sat, 21 Mar 2015 02:32PM
gzzibs:: bXOkEmMoEHAImzBrHNUSat, 21 Mar 2015 02:34PM
::  Sat, 21 Mar 2015 06:57PM
mkijhdpqffd:: FxuQzZLVbSun, 22 Mar 2015 05:09AM
::  Sun, 22 Mar 2015 07:59PM
::  Mon, 23 Mar 2015 03:27AM
::  Mon, 23 Mar 2015 06:51AM
:: Perfect!! alias Stefan S.Mon, 23 Mar 2015 10:23AM
someone:: Help me alot!Mon, 23 Mar 2015 10:36AM
regexer:: very cool very swag i liek itMon, 23 Mar 2015 03:08PM
Yolo:: $wagMon, 23 Mar 2015 05:04PM
daaaamn dude:: thank a lot broMon, 23 Mar 2015 08:16PM
::  Mon, 23 Mar 2015 10:56PM
::  Mon, 23 Mar 2015 10:56PM
::  Tue, 24 Mar 2015 05:05AM
::  Tue, 24 Mar 2015 07:48AM
::  Tue, 24 Mar 2015 12:40PM
sad:: asdasTue, 24 Mar 2015 12:40PM
asdf:: dsafasdfTue, 24 Mar 2015 12:40PM
sülüman:: Nabıyonuz gençlerTue, 24 Mar 2015 03:08PM
sülüman:: Nabıyonuz gençlerTue, 24 Mar 2015 03:09PM
::  Wed, 25 Mar 2015 06:31AM
:: Awesome!Wed, 25 Mar 2015 06:31AM
::  Wed, 25 Mar 2015 08:28AM
::  Wed, 25 Mar 2015 08:36AM
1337:: Awesome, would donate if a button would be there. Wed, 25 Mar 2015 02:27PM
::  Thu, 26 Mar 2015 06:02AM
::  Thu, 26 Mar 2015 09:02AM
::  Thu, 26 Mar 2015 09:12AM
:: uselessThu, 26 Mar 2015 09:13AM
111:: 22222222888888Fri, 27 Mar 2015 03:29AM
::  Fri, 27 Mar 2015 03:30AM
masterdingdong:: AwesomeFri, 27 Mar 2015 02:09PM
mightycpa:: it took me a little while... how do you do NOT?Sat, 28 Mar 2015 04:58AM
::  Sat, 28 Mar 2015 04:41PM
::  Sat, 28 Mar 2015 04:42PM
::  Sat, 28 Mar 2015 11:25PM
 
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