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
bobbyjo:: The best regular expression builder there is!Thu, 19 Feb 2015 11:48PM
::  Fri, 20 Feb 2015 02:06AM
:: could you plz tell me the step by step process that how to use txt2re?Fri, 20 Feb 2015 11:07AM
:: ddFri, 20 Feb 2015 12:31PM
:: lelFri, 20 Feb 2015 12:31PM
Андрей Викторович::  Sun, 22 Feb 2015 05:32PM
gkxhel:: ffChShZJjJMon, 23 Feb 2015 07:36AM
sanae:: A great toolMon, 23 Feb 2015 02:13PM
alert(/a/):: alert(/a/)Mon, 23 Feb 2015 02:14PM
::  Mon, 23 Feb 2015 02:15PM
::  Mon, 23 Feb 2015 02:15PM
::  Mon, 23 Feb 2015 06:53PM
tako:: I literally have no idea how the fuck to use your toolMon, 23 Feb 2015 08:02PM
silphium:: Verry cool!Tue, 24 Feb 2015 05:59AM
Raviraj:: NiceeeeeeeeeeeeeeeeeeTue, 24 Feb 2015 10:00AM
:: You deserve a medal!Wed, 25 Feb 2015 12:19PM
jared::  Wed, 25 Feb 2015 02:30PM
::  Wed, 25 Feb 2015 04:48PM
::  Wed, 25 Feb 2015 09:19PM
:: WTB setting for grep regex with or without -P and lookbehind + lookaheadThu, 26 Feb 2015 03:10PM
::  Thu, 26 Feb 2015 11:59PM
j2:: This is some good work, You must be a wiz or an insomniacThu, 26 Feb 2015 11:59PM
colin:: Thank you so much, worked perfectly!Fri, 27 Feb 2015 12:17AM
::  Fri, 27 Feb 2015 01:17AM
Add Experiment:: blah blah balghFri, 27 Feb 2015 07:56AM
::  Fri, 27 Feb 2015 03:30PM
pro:: thank you for this awesom serviceFri, 27 Feb 2015 06:08PM
Arun:: This is beyond awesome... Done my work in 2 mins...Fri, 27 Feb 2015 10:31PM
::  Sat, 28 Feb 2015 02:56AM
123:: 123Sat, 28 Feb 2015 10:40AM
::  Sun, 1 Mar 2015 03:41AM
:: NiceSun, 1 Mar 2015 08:17AM
::  Mon, 2 Mar 2015 07:44AM
::  Mon, 2 Mar 2015 08:46AM
::  Mon, 2 Mar 2015 01:00PM
:: How to work with conditional regular expressions?Mon, 2 Mar 2015 09:13PM
a:: aTue, 3 Mar 2015 08:31AM
pcul:: where ist your donate-button :)Tue, 3 Mar 2015 09:54AM
::  Tue, 3 Mar 2015 01:17PM
:: I literally have no idea how the fuck to use your toolTue, 3 Mar 2015 05:10PM
::  Wed, 4 Mar 2015 09:37AM
Emylee:: Thank you so much for this, it's great.Wed, 4 Mar 2015 03:09PM
::  Wed, 4 Mar 2015 08:52PM
::  Wed, 4 Mar 2015 09:38PM
 
  home     faq              ©2006 mark james ennis