Created
January 23, 2023 14:19
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Split strings based on any number of delimiters. Standard C++
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// StringSplitter.cpp | |
#include <iostream> // std::cout | |
#include <vector> // std::vector | |
#include <fstream> | |
std::vector<std::string> Split(const std::string str, const std::vector<std::string> delims) | |
{ | |
const std::string fixedDelim = ","; | |
std::vector<std::string> split; | |
size_t t = 0; | |
// Make a copy of the string | |
std::string tmp = str; | |
// First, replace all delimeters with a common delimeter | |
for (const auto& delim : delims) | |
{ | |
t = 0; | |
while (( t = tmp.find(delim, t)) != std::string::npos) | |
{ | |
tmp = tmp.replace(t, delim.size(), fixedDelim); | |
t += delim.size(); | |
} | |
} | |
t = 0; | |
int start = 0; | |
// Extract all delimited values | |
while ((t = tmp.find(fixedDelim, t)) != std::string::npos) | |
{ | |
split.push_back(tmp.substr(start, t - start)); | |
start = t + 1; | |
t += fixedDelim.size() + 1; | |
} | |
return split; | |
} | |
int main() | |
{ | |
std::string input = "123,456->789,654->843*579-1289"; | |
std::cout << "String to parse:\n" << input << "\n"; | |
auto val = Split(input, { ",", "->", "*", "-"}); | |
std::cout << "Split returned:\n"; | |
for (auto str : val) | |
std::cout << str << '\n'; | |
return 0; | |
} |
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