txt2re: headache relief for programmers :: regular expression generator

txt

knowing is obsolete :: regular expression generator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:

Select the elements that you want to extract to run regular expression generator:

day

int

var

Jan

word

Jan

month

Jan

day

year

2019

int

2019

ddmmmyyyy

11:Jan:2019

var

This

word

This

var

word

var

word

var

Example

word

Example

string

"This_is_an_Example!"

< Source String

What to click?	extract any integer in this position
	extract this integer (2006) in this position

C++ regular expression program that extracts the selected elements from the entered string:

Perl

PHP

Python

Java

Javascript

ColdFusion

[C++]

Ruby

VBScript

J#.net

C#.net

C++.net

VB.net

 
// URL that generated this code:
// http://txt2re.com/index-c++.php3?s=11:Jan:2019%20%22This%20is%20an%20Example!%22&-51&-9999

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

int main()
{
  std::string txt="11:Jan:2019 \"This is an Example!\"";

  std::string re1="()";	//  1
  std::string re2=".*?";	// Non-greedy match on filler
  std::string re3="(!)";	// Any Single Character 1

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

home

faq