2020/16

lib/CMakeLists.txt

@@ -1,2 +1,2 @@
-add_library(aocpp src/Startup.cpp src/Coord.cpp)
+add_library(aocpp src/Startup.cpp src/Coord.cpp src/Parsing.cpp)
 target_include_directories(aocpp PUBLIC include)

lib/include/aocpp/Parsing.hpp

@@ -0,0 +1,13 @@
+#ifndef AOCPP_PARSING_HPP_
+#define AOCPP_PARSING_HPP_
+
+#include <string>
+#include <vector>
+
+namespace aocpp {
+
+auto SplitOn(std::string const& stuff, std::string const& sep) -> std::vector<std::string>;
+
+}
+
+#endif

lib/src/Parsing.cpp

@@ -0,0 +1,22 @@
+#include <aocpp/Parsing.hpp>
+
+namespace aocpp {
+
+auto SplitOn(std::string const& stuff, std::string const& sep) -> std::vector<std::string>
+{
+  std::vector<std::string> results;
+  std::size_t cursor = 0;
+  for (;;) {
+    auto i = stuff.find(sep, cursor);
+    if (i != std::string::npos) {
+      results.push_back(stuff.substr(cursor, i-cursor));
+      cursor = i + sep.size();
+    } else {
+      break;
+    }
+  }
+  results.push_back(stuff.substr(cursor));
+  return results;
+}
+
+} // namespace