String generation from a regex in C++

The library is header only. Include the main header which brings in everything else:

#include "regen/regen.hpp"

To generate a random string from a regex, just call the generate function:

std::cout << regen::generate( "a{12}" ) << "\n"

aaaaaaaaaaaa

It is possible to customize the maximum number of repetitions for * and +:

std::cout << regen::generate( ".+", 20 ) << "\n"

dj1ofFSkUCiJqu

It is also possible to customize the minimum number of repetitions for * and +, note that + will still have at least 1 repetition:

std::cout << regen::generate( ".+", 42, 21 ) << "\n"

vA=N796t?hXwAJdTNQ!HE1_OLXmJ

Finally, it is possible to restrict the set of characters used in the generated string:

std::cout << regen::generate( ".+", 20, 0, "[A-Z]" ) << "\n"

LNUPLCHNHANDPR

Install the dependencies:

sudo apt install libboost-all-dev

Clone the repository:

git clone https://github.com/SebastienDebia/libRegen.git

Once that's finished, navigate to the root directory. In this case it should be libRegen:

cd libRegen

Then run g++:

g++ -std=c++14 main.cpp -o test_regen

If everything went right, you should have a new binary test_regen. It contains a few test regex.