finding the word ends with search string

[jamesanderrson]

In main function, i get a source string and a search string. Then i want to check whether a word in source string ends with search string.I dont have a problem with main function, but i don't know how to check if there is a word ends with search string or not. Please, help me. I will be grateful. :)


Output should be like this:

Enter source string: Cars are fast
Enter search string: rs
index: 2 word: Cars

[SECMoG1T]

what do you have you done so far, post so that we can assist.

[jamesanderrson]

when i write "*" end of search string, i find all indexes. What i was asking is the situation happens when i write "." end of search string. I've handled "*" part. However, i can't create an algorithm for finding the word ends with search string which i called "operator_dot".

what i have done so far is,

#include <iostream>

#include <string>

using namespace std;

　

void operator_star(string source,string search)

{

	unsigned int index=source.find(search,0);

cout<<"index: "<<index<<endl;

	while(index!=string::npos)

{

index=source.find(search,index+1);

	if(index!=string::npos)

cout<<"index :"<<index<<endl;

}

}

void operator_dot(string source,string search)

{

}

int main ()

{

	string source;

	string search;

	do

{

cout<<"Enter source string: ";

getline(cin,source);

}while(source.rfind("END")==string::npos && source.rfind("end")==string::npos);

　

	do

{

cout<<"Enter search string: ";

getline(cin,search);

}while(search.find("*")==string::npos && search.find(".")==string::npos && search.find("+")==string::npos);

source=source.substr(0,source.length()-3);

	if(search.find("*")!=string::npos)

{

search=search.substr(0,search.length()-1);

operator_star(source,search);

}

	else if(search.find(".")!=string::npos)

{

search=search.substr(0,search.length()-1);

operator_dot(source,search);

}

cin.ignore();

cin.get();

	return 0;

}

[SECMoG1T]

what is the code supposed to do because its hard to read <format?>; here some code that accomplishes the requirement on the first post

#include <iostream>
#include <string>
#include <vector>
#include <utility>

using pos_string = std::pair<int,std::string>;

std::vector<pos_string> tokenize(const std::string& data,const std::string& delim = " "); //split words in a sentence
std::vector<pos_string> get_all_matches(const std::string& data,const std::string& phrase); //match all words that end with phrase
bool ends_with(const std::string& word,const std::string& phrase);///check if word ends with phrase


int main()
{
   std::string input{},phrase{};

   std::cout<<"Enter your string: ";
   std::getline(std::cin,input,'\n');

   std::cout<<"Enter your search string: ";
   std::cin>>phrase;

   std::cout<<"\n\n";

   auto vec(get_all_matches(input,phrase));

   for(auto ind_wrd : vec)
   {
       std::cout<<"Index: "<<ind_wrd.first<<" Word: "<<ind_wrd.second<<std::endl;
   }
}


std::vector<pos_string> tokenize(const std::string& data,const std::string& delim)
{
   std::vector<pos_string> result{};
   std::size_t delim_pos=0,index=0;

   while((delim_pos = data.find(delim,delim_pos)) != std::string::npos)
   {
      std::string temp(data.begin()+index,data.begin()+delim_pos);

      result.push_back(std::make_pair(index,temp));
      index = data.find_first_not_of(delim,delim_pos);
      delim_pos = index;
   }

   result.push_back(std::make_pair(index,std::string(data.begin()+index,data.end())));

   return result;
}



std::vector<pos_string> get_all_matches(const std::string& data,const std::string& phrase)
{
    std::vector<pos_string> _tokens(tokenize(data));
    std::vector<pos_string> result{};

    for(auto indx_word : _tokens)
    {
       if(ends_with(indx_word.second,phrase))
             result.push_back(indx_word);
    }

    return result;
}



bool ends_with(const std::string& word,const std::string& phrase)
{
    auto pos = word.rfind(phrase);

    if(pos != std::string::npos && (word.substr(pos,word.size()) == phrase))
            return true;

    return false;
}

Enter your string: art is fun, and being part of it is a nice start
Enter your search string: art


Index: 0 Word: art
Index: 22 Word: part
Index: 43 Word: start