Add Keyboard input and enter support for text editor.

src/core/StringUtils.cpp

@@ -20,6 +20,17 @@ bool StringUtils::IsSpace(char c)
     return std::isspace(c, loc);
 }
 
+std::vector<std::string> StringUtils::toLines(const std::string& input)
+{
+    auto result = std::vector<std::string>{};
+    auto ss = std::stringstream{input};
+    for (std::string line; std::getline(ss, line, '\n');)
+    {
+        result.push_back(line);
+    }
+    return result;
+}
+
 std::string StringUtils::strip(const std::string& input)
 {
     if (input.empty())

src/core/StringUtils.h

@@ -23,5 +23,8 @@ public:
     static std::string ToPaddedString(unsigned numBytes, unsigned entry);
     static std::vector<std::string> split(const std::string& input);
     static std::string strip(const std::string& input);
+
+    static std::vector<std::string> toLines(const std::string& input);
+
     static std::string stripQuotes(const std::string& input);
 };