RegexUtils.cpp

/* RegexUtils.cpp
 * Contains useful functions for dealing with string parsing.
 * Author: Adam Waggoner, Jaden Holladay, Logan Ropelato, Gray Marchese
 */

#include "RegexUtils.h"
#include <string>
#include <boost/regex.hpp>
#include <sstream>

using namespace std;

bool RegexUtils::RegexFind(const std::string val, const std::string pattern, boost::smatch & out)
{
  boost::regex expr(pattern);
  boost::smatch matches;
  if (boost::regex_search(val, matches, expr))
  {
    out = matches;
    return true;
  }
  return false;
}

// Validates that a file name is legal
bool RegexUtils::IsValidFilename(const std::string name)
{
  if(name.size() > 255)
    return false;

  boost::regex expr("^[\\w\\- ]+$");
  boost::smatch dummy;

  return boost::regex_search(name, dummy, expr);
}

// Returns true if string can be parsed as an integer.
bool RegexUtils::IsInt(std::string val)
{
  int dummyval;
  return sscanf(val.c_str(), "%d", &dummyval);
}

// Citation: Code from http://stackoverflow.com/questions/236129/split-a-string-in-c
std::vector<std::string> RegexUtils::Split(std::string inp, char delimiter)
{
  stringstream ss(inp);
  string item;
  vector<string> tokens;
  while (getline(ss, item, delimiter))
  {
    tokens.push_back(item);
  }
  return tokens;
}