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/**
* @file tokens.hpp
* @brief Provides a way to iterate through tokens in a string.
*/
#ifndef TOKENS_HPP_
#define TOKENS_HPP_
#include <string>
/**
* @class tokens
* A class to provide the ability to iterate through parts of a string, with a
* given delimiting character.
*/
class tokens {
private:
/**
* A reference of the string to iterate through.
*/
const std::string& str;
/**
* The delimiting character, to split the string into tokens.
*/
char delim;
public:
/**
* @class iterator
* Provides a method of iterating through the tokens in the string.
*/
class iterator {
public:
/** The string to iterate through. */
const std::string& str;
/** The delimiting character. */
char delim;
/** The current index in the string. */
unsigned int index;
iterator(unsigned int i, const std::string& s = "", char d = 0)
: str(s), delim(d), index(i) {}
inline bool operator!=(const iterator& i) {
return index != i.index;
}
inline iterator& operator++(void) {
index++;
return *this;
}
std::string operator*(void) {
std::string token;
while (index < str.size()) {
if (str[index] == delim)
return token;
else
token += str[index++];
}
return token;
}
};
tokens(const std::string& s, char d)
: str(s), delim(d) {}
inline iterator begin(void) const {
return iterator(0, str, delim);
}
inline iterator end(void) const {
return iterator(str.size() + 1, str, delim);
}
};
#endif // TOKENS_HPP_
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