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What would be easiest method to split a string using c++11?
I've seen the method used by this post, but I feel that there ought to be a less verbose way of doing it using the new standard.
Edit: I would like to have a vector<string> as a result and be able to delimitate on a single character.
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Splitting a string using strtok() in C In C, the strtok() function is used to split a string into a series of tokens based on a particular delimiter. A token is a substring extracted from the original string.
Use strtok() function to split strings delim: It is a character that is used to split a string. For example, comma (,), space ( ), hyphen (-), etc. Return: It returns a pointer that references the next character tokens.
Just use the string as if i would be a array. In a c++ 's std::string if example equals "Hello world!" then example[0] equals 'H' , example[1] equals 'e' and so on. Variable-length arrays are non-standard until C++17, and you don't need arr anyway since std::string overloads operator[] .
Use the Split method when the substrings you want are separated by a known delimiting character (or characters). Regular expressions are useful when the string conforms to a fixed pattern. Use the IndexOf and Substring methods in conjunction when you don't want to extract all of the substrings in a string.
How can I split a string into multiple strings separated by different delimiters in C? Use strtok () function in c and C++. while Python has split () function which tokenize the string based on delimiter. In Java there is a class StringTokenizer which also does the same thing.
In Java, split () is a method in String class. // expregexp is the delimiting regular expression; // limit is the number of returned strings public String [] split (String regexp, int limit); // We can call split () without limit also public String [] split (String regexp)
The C# language has several fun and interesting string methods, which are like functions for object-oriented languages. You can parse strings, replace text within a string, and a whole host of fun and useful tasks. But C was specifically mocked regarding its inability to split a string by using a tidy number of statements.
The first thing the split () function does is to obtain the length of the original string: If the split ( offset) is greater than the string’s length, the function returns 0, failure. (The function can “split” a string the same length as the original string, in which case you end up with a copy of the original string and an empty string.)
std::regex_token_iterator performs generic tokenization based on a regex. It may or may not be overkill for doing simple splitting on a single character, but it works and is not too verbose:
std::vector<std::string> split(const string& input, const string& regex) { // passing -1 as the submatch index parameter performs splitting std::regex re(regex); std::sregex_token_iterator first{input.begin(), input.end(), re, -1}, last; return {first, last}; } If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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