add split string function

README.md

@@ -1 +1 @@
-![This is an image](./hack.png)
+![hack++'s logo](./hack.png)

bin/main.cpp

@@ -1,6 +1,11 @@
-#include "src/string/string.hpp"
+#include <iostream>
+
+#include "string/string.hpp"
 
 int main(int argc, char *argv[])
 {
-  return 0;
+  std::string str { "asdf,qwer,zxcv" };
+  hack::v_str v = hack::split_str(str, ',');
+
+  for (const auto& c : v) std::cout << c << std::endl;
 }

src/string/string.cpp

@@ -1,32 +1,23 @@
-#pragma once
+#include "string.hpp"
 
-#include <string>
+namespace hack
-
-#ifndef ERROR_EXCEPTION
-#define ERROR_EXCEPTION_1(in) { auto trace = std::string(LOGGER___TRACE_ON); \
-                                 throw tools::error::error_exception(in, in, "no internal system error", trace); }
-#define ERROR_EXCEPTION_2(in, out) { auto trace = std::string(LOGGER___TRACE_ON); \
-                                         throw tools::error::error_exception(in, out, "no internal system err", trace); }
-#define ERROR_EXCEPTION_3(in, out, err) { auto trace = std::string(LOGGER___TRACE_ON); \
-                                              throw tools::error::error_exception(in, out, err, trace); }
-#define GET_MACRO(_1,_2,_3,NAME, ...) NAME
-#define ERROR_EXCEPTION(...) GET_MACRO(__VA_ARGS__, ERROR_EXCEPTION_3, ERROR_EXCEPTION_2, ERROR_EXCEPTION_1)(__VA_ARGS__)
-#endif
-
-namespace tools::error
 {
-  // implementation error exception
+  v_str split_str(const std::string& str, char t)
-  // example: if (1 < 0) ERROR_EXCEPTION("it's very strange"); 
-  // try {} 
-  // catch(tools::error::error_exception& e) {}
-  struct error_exception : public std::exception
   {
-    error_exception(std::string in, std::string out, std::string error, std::string trace) : in { in }, out { out }, error { error }, trace { trace } {};
+    v_str v;
-    std::string in;
-    std::string out;
-    std::string error;
-    std::string trace;
-    const char* what () const throw () { return in.c_str(); }
-  };
-}
 
+    std::string::size_type begin = 0;
+    std::string::size_type end = str.find_first_of(t);
+    
+    while(end != std::string::npos)
+    {
+      v.emplace_back(str.substr(begin, end - begin));
+      begin = ++end;
+      end = str.find_first_of(t, begin);
+    }
+
+    v.emplace_back(str.substr(begin));
+
+    return v;
+  }
+}

src/string/string.hpp

@@ -1,7 +1,11 @@
 #pragma once
 
 #include <string>
+#include <vector>
 
 namespace hack
 {
+  using v_str = std::vector<std::string>;
+
+  v_str split_str(const std::string& str, char t);
 }

tests/split_str.cpp

@@ -4,10 +4,10 @@
 
 #include "string/string.hpp"
 
-using v_str = std::vector<std::string>;
 
-TEST(split_str, check__func)
+TEST(split_str, check)
 {
-  // v_str res {"asdf","qwer","zxcv"};
+  hack::v_str v { "asdf", "qwer", "zxcv" };
-  // ASSERT_EQ(tools::func::split_str("asdf,qwer,zxcv", ','), res);
+
+  ASSERT_EQ(hack::split_str("asdf,qwer,zxcv", ','), v);
 }