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I have some text (meaningful text or arithmetical expression) and I want to split it into words.
If I had a single delimiter, I'd use:
std::stringstream stringStream(inputString); std::string word; while(std::getline(stringStream, word, delimiter)) { wordVector.push_back(word); } How can I break the string into tokens with several delimiters?
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split() method accepts two arguments. The first optional argument is separator , which specifies what kind of separator to use for splitting the string. If this argument is not provided, the default value is any whitespace, meaning the string will split whenever .
To convert a string in a list of words, you just need to split it on whitespace. You can use split() from the string class. The default delimiter for this method is whitespace, i.e., when called on a string, it'll split that string at whitespace characters.
Using the STUFF & FOR XML PATH function we can derive the input string lists into an XML format based on delimiter lists. And finally we can load the data into the temp table..
To split by different delimiters, we should just set all the characters in the pattern. We've defined a test string with names that should be split by characters in the pattern. The pattern itself contains a semicolon, a colon, and a hyphen.
Assuming one of the delimiters is newline, the following reads the line and further splits it by the delimiters. For this example I've chosen the delimiters space, apostrophe, and semi-colon.
std::stringstream stringStream(inputString); std::string line; while(std::getline(stringStream, line)) { std::size_t prev = 0, pos; while ((pos = line.find_first_of(" ';", prev)) != std::string::npos) { if (pos > prev) wordVector.push_back(line.substr(prev, pos-prev)); prev = pos+1; } if (prev < line.length()) wordVector.push_back(line.substr(prev, std::string::npos)); } 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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