hunk.code_window:     addListenerWithNativeCallback('ExponentKernel.showQRReader', async event => {
         this.props.navigation.showModal('QRCode');
         return { success: true };
       });
       addListenerWithNativeCallback('ExponentKernel.addHistoryItem', async event => {
         let { manifestUrl, manifest, manifestString } = event;
         if (!manifest && manifestString) {
           manifest = JSON.parse(manifestString);
         }
         Store.dispatch(HistoryActions.addHistoryItem(manifestUrl, manifest));
       });
     }
     componentWillUnmount() {
       this._stopPollingForProjects();
  
hunk.labels: keep keep keep keep replace replace replace replace replace replace replace replace keep keep keep keep
hunk.file_path: home/screens/ProjectsScreen.js
hunk.type: replace
file: #ifndef _DATE_TIME_DATE_PARSING_HPP___
  #define _DATE_TIME_DATE_PARSING_HPP___
  
  /* Copyright (c) 2002,2003,2005 CrystalClear Software, Inc.
   * Use, modification and distribution is subject to the
   * Boost Software License, Version 1.0. (See accompanying
   * file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
   * Author: Jeff Garland, Bart Garst
   * $Date$
   */
  
  #include <string>
  #include <iterator>
  #include <algorithm>
  #include <boost/tokenizer.hpp>
  #include <boost/lexical_cast.hpp>
  #include <boost/date_time/compiler_config.hpp>
  #include <boost/date_time/parse_format_base.hpp>
  
  #if defined(BOOST_DATE_TIME_NO_LOCALE)
  #include <cctype> // ::tolower(int)
  #else
  #include <locale> // std::tolower(char, locale)
  #endif
  
  namespace boost {
  namespace date_time {
  
    //! A function to replace the std::transform( , , ,tolower) construct
    /*! This function simply takes a string, and changes all the characters
     * in that string to lowercase (according to the default system locale).
     * In the event that a compiler does not support locales, the old
     * C style tolower() is used.
     */
    inline
    std::string
    convert_to_lower(std::string inp)
    {
  #if !defined(BOOST_DATE_TIME_NO_LOCALE)
      const std::locale loc(std::locale::classic());
  #endif
      std::string::size_type i = 0, n = inp.length();
      for (; i < n; ++i) {
        inp[i] =
  #if defined(BOOST_DATE_TIME_NO_LOCALE)
          static_cast<char>(std::tolower(inp[i]));
  #else
          // tolower and others were brought in to std for borland >= v564
          // in compiler_config.hpp
          std::tolower(inp[i], loc);
  #endif
      }
      return inp;
    }
  
      //! Helper function for parse_date.
      /* Used by-value parameter because we change the string and may
       * want to preserve the original argument */
      template<class month_type>
      inline unsigned short
      month_str_to_ushort(std::string const& s) {
        if((s.at(0) >= '0') && (s.at(0) <= '9')) {
          return boost::lexical_cast<unsigned short>(s);
        }
        else {
          std::string str = convert_to_lower(s);
          typename month_type::month_map_ptr_type ptr = month_type::get_month_map_ptr();
          typename month_type::month_map_type::iterator iter = ptr->find(str);
          if(iter != ptr->end()) { // required for STLport
            return iter->second;
          }
        }
        return 13; // intentionally out of range - name not found
      }
   
      //! Find index of a string in either of 2 arrays
      /*! find_match searches both arrays for a match to 's'. Both arrays
       * must contain 'size' elements. The index of the match is returned.
       * If no match is found, 'size' is returned.
       * Ex. "Jan" returns 0, "Dec" returns 11, "Tue" returns 2.
       * 'size' can be sent in with: (greg_month::max)() (which 12),
       * (greg_weekday::max)() + 1 (which is 7) or date_time::NumSpecialValues */
      template<class charT>
      short find_match(const charT* const* short_names,
                       const charT* const* long_names,
                       short size,
                       const std::basic_string<charT>& s) {
        for(short i = 0; i < size; ++i){
          if(short_names[i] == s || long_names[i] == s){
            return i;
          }
        }
        return size; // not-found, return a value out of range
      }
  
      //! Generic function to parse a delimited date (eg: 2002-02-10)
      /*! Accepted formats are: "2003-02-10" or " 2003-Feb-10" or
       * "2003-Feburary-10"
       * The order in which the Month, Day, & Year appear in the argument
       * string can be accomodated by passing in the appropriate ymd_order_spec
       */
      template<class date_type>
      date_type
      parse_date(const std::string& s, int order_spec = ymd_order_iso) {
        std::string spec_str;
        if(order_spec == ymd_order_iso) {
          spec_str = "ymd";
        }
        else if(order_spec == ymd_order_dmy) {
          spec_str = "dmy";
        }
        else { // (order_spec == ymd_order_us)
          spec_str = "mdy";
        }
  
        typedef typename date_type::month_type month_type;
        unsigned pos = 0;
        unsigned short year(0), month(0), day(0);
        typedef typename std::basic_string<char>::traits_type traits_type;
        typedef boost::char_separator<char, traits_type> char_separator_type;
        typedef boost::tokenizer<char_separator_type,
                                 std::basic_string<char>::const_iterator,
                                 std::basic_string<char> > tokenizer;
        typedef boost::tokenizer<char_separator_type,
                                 std::basic_string<char>::const_iterator,
                                 std::basic_string<char> >::iterator tokenizer_iterator;
        // may need more delimiters, these work for the regression tests
        const char sep_char[] = {',','-','.',' ','/','\0'};
        char_separator_type sep(sep_char);
        tokenizer tok(s,sep);
        for(tokenizer_iterator beg=tok.begin();
            beg!=tok.end() && pos < spec_str.size();
            ++beg, ++pos) {
          switch(spec_str.at(pos)) {
            case 'y':
            {
              year = boost::lexical_cast<unsigned short>(*beg);
              break;
            }
            case 'm':
            {
              month = month_str_to_ushort<month_type>(*beg);
              break;
            }
            case 'd':
            {
              day = boost::lexical_cast<unsigned short>(*beg);
              break;
            }
            default: break;
          } //switch
        }
        return date_type(year, month, day);
      }
  
      //! Generic function to parse undelimited date (eg: 20020201)
      template<class date_type>
      date_type
      parse_undelimited_date(const std::string& s) {
        int offsets[] = {4,2,2};
        int pos = 0;
        //typename date_type::ymd_type ymd((year_type::min)(),1,1);
        unsigned short y = 0, m = 0, d = 0;
  
        /* The two bool arguments state that parsing will not wrap
         * (only the first 8 characters will be parsed) and partial
         * strings will not be parsed.
         * Ex:
         * "2005121" will parse 2005 & 12, but not the "1" */
        boost::offset_separator osf(offsets, offsets+3, false, false);
  
        typedef typename boost::tokenizer<boost::offset_separator,
                                          std::basic_string<char>::const_iterator,
                                          std::basic_string<char> > tokenizer_type;
        tokenizer_type tok(s, osf);
        for(typename tokenizer_type::iterator ti=tok.begin(); ti!=tok.end();++ti) {
          unsigned short i = boost::lexical_cast<unsigned short>(*ti);
          switch(pos) {
          case 0: y = i; break;
          case 1: m = i; break;
          case 2: d = i; break;
          default:       break;
          }
          pos++;
        }
        return date_type(y,m,d);
      }
  
      //! Helper function for 'date gregorian::from_stream()'
      /*! Creates a string from the iterators that reference the
       * begining & end of a char[] or string. All elements are
       * used in output string */
      template<class date_type, class iterator_type>
      inline
      date_type
      from_stream_type(iterator_type& beg,
                       iterator_type const& end,
                       char)
      {
        std::ostringstream ss;
        while(beg != end) {
          ss << *beg++;
        }
        return parse_date<date_type>(ss.str());
      }
  
      //! Helper function for 'date gregorian::from_stream()'
      /*! Returns the first string found in the stream referenced by the
       * begining & end iterators */
      template<class date_type, class iterator_type>
      inline
      date_type
      from_stream_type(iterator_type& beg,
                       iterator_type const& /* end */,
                       std::string const&)
      {
        return parse_date<date_type>(*beg);
      }
  
      /* I believe the wchar stuff would be best elsewhere, perhaps in
       * parse_date<>()? In the mean time this gets us started... */
      //! Helper function for 'date gregorian::from_stream()'
      /*! Creates a string from the iterators that reference the
       * begining & end of a wstring. All elements are
       * used in output string */
      template<class date_type, class iterator_type>
      inline
      date_type from_stream_type(iterator_type& beg,
                                 iterator_type const& end,
                                 wchar_t)
      {
        std::ostringstream ss;
  #if !defined(BOOST_DATE_TIME_NO_LOCALE)
        std::locale loc;
        std::ctype<wchar_t> const& fac = std::use_facet<std::ctype<wchar_t> >(loc);
        while(beg != end) {
          ss << fac.narrow(*beg++, 'X'); // 'X' will cause exception to be thrown
        }
  #else
        while(beg != end) {
          char c = 'X'; // 'X' will cause exception to be thrown
          const wchar_t wc = *beg++;
          if (wc >= 0 && wc <= 127)
            c = static_cast< char >(wc);
          ss << c;
        }
  #endif
        return parse_date<date_type>(ss.str());
      }
  #ifndef BOOST_NO_STD_WSTRING
      //! Helper function for 'date gregorian::from_stream()'
      /*! Creates a string from the first wstring found in the stream
       * referenced by the begining & end iterators */
      template<class date_type, class iterator_type>
      inline
      date_type
      from_stream_type(iterator_type& beg,
                       iterator_type const& /* end */,
                       std::wstring const&) {
        std::wstring ws = *beg;
        std::ostringstream ss;
        std::wstring::iterator wsb = ws.begin(), wse = ws.end();
  #if !defined(BOOST_DATE_TIME_NO_LOCALE)
        std::locale loc;
        std::ctype<wchar_t> const& fac = std::use_facet<std::ctype<wchar_t> >(loc);
        while(wsb != wse) {
          ss << fac.narrow(*wsb++, 'X'); // 'X' will cause exception to be thrown
        }
  #else
        while(wsb != wse) {
          char c = 'X'; // 'X' will cause exception to be thrown
          const wchar_t wc = *wsb++;
          if (wc >= 0 && wc <= 127)
            c = static_cast< char >(wc);
          ss << c;
        }
  #endif
        return parse_date<date_type>(ss.str());
      }
  #endif // BOOST_NO_STD_WSTRING
  #if (defined(BOOST_MSVC) && (_MSC_VER < 1300))
      // This function cannot be compiled with MSVC 6.0 due to internal compiler shorcomings
  #else
      //! function called by wrapper functions: date_period_from_(w)string()
      template<class date_type, class charT>
      period<date_type, typename date_type::duration_type>
      from_simple_string_type(const std::basic_string<charT>& s){
        typedef typename std::basic_string<charT>::traits_type traits_type;
        typedef typename boost::char_separator<charT, traits_type> char_separator;
        typedef typename boost::tokenizer<char_separator,
                                          typename std::basic_string<charT>::const_iterator,
                                          std::basic_string<charT> > tokenizer;
        const charT sep_list[4] = {'[','/',']','\0'};
        char_separator sep(sep_list);
        tokenizer tokens(s, sep);
        typename tokenizer::iterator tok_it = tokens.begin();
        std::basic_string<charT> date_string = *tok_it;
        // get 2 string iterators and generate a date from them
        typename std::basic_string<charT>::iterator date_string_start = date_string.begin(),
                                                    date_string_end = date_string.end();
        typedef typename std::iterator_traits<typename std::basic_string<charT>::iterator>::value_type value_type;
        date_type d1 = from_stream_type<date_type>(date_string_start, date_string_end, value_type());
        date_string = *(++tok_it); // next token
        date_string_start = date_string.begin(), date_string_end = date_string.end();
        date_type d2 = from_stream_type<date_type>(date_string_start, date_string_end, value_type());
        return period<date_type, typename date_type::duration_type>(d1, d2);
      }
  #endif
  
  } } //namespace date_time
  
  
  
  
  #endif
  
  