Get shell somewhat working

apps/tshell.cpp

@@ -0,0 +1,111 @@
+#include "TessesFramework/TessesFramework.hpp"
+#include "TessesFramework/Platform/Process.hpp"
+using namespace Tesses::Framework;
+using namespace Tesses::Framework::Platform;
+using namespace Tesses::Framework::TextStreams;
+using namespace Tesses::Framework::Filesystem;
+
+void split_command(std::string cmd, std::vector<std::string>& args)
+{
+    bool inStr=false;
+    std::string cur={};
+    auto flush=[&]()->void {
+        if(cur.empty()) return;
+        args.push_back(cur);
+        cur={};
+    };
+    for(size_t i = 0; i < cmd.size(); i++)
+    {
+        if(inStr)
+        {
+            if(cmd[i] == '\"') inStr=false;
+            else if(cmd[i] == '\\') 
+            {
+                i++;
+                if(i < cmd.size())
+                {
+                    cmd.push_back(cmd[i]);
+                }
+            }
+            else cur.push_back(cmd[i]);
+        }
+        else 
+        {
+            if(cmd[i] == ' ') flush();
+            else if(cmd[i] == '\"') {
+                inStr=true;
+            }
+            else {
+                cur.push_back(cmd[i]);
+            }
+        }
+
+    }
+    flush();
+}
+
+int main(int argc,char** argv)
+{
+    TF_Init();
+
+    
+
+    while(true)
+    {
+        std::cout << VFSPath::GetAbsoluteCurrentDirectory().ToString()  << "$ ";
+
+
+        std::string text;
+        StdIn().ReadLine(text);
+        std::vector<std::string> args;
+        split_command(text,args);
+        if(args.empty()) continue;
+        if(args[0] == "exit") break;
+        else if(args[0] == "echo") { if(args.size() > 1) std::cout << args[1] << std::endl;}
+        else if(args[0] == "cd") {
+            if(args.size() < 2)
+            {
+                VFSPath::SetAbsoluteCurrentDirectory(Environment::SpecialFolders::GetHomeFolder());
+            }
+            else {
+                VFSPath::SetAbsoluteCurrentDirectory(args[1]);
+            }
+        }
+        else if(args[0] == "printargs")
+        {
+            for(size_t i = 1; i < args.size(); i++)
+            {
+                std::cout << "\"" << Http::HttpUtils::Replace(args[i],"\"","\\\"") << "\"" << std::endl;
+            }
+        }
+        else if(args[0] == "rstdi")
+        {
+            if(args.size()<3) continue;
+            std::vector<std::string> args2(args.begin()+2,args.end());
+            auto f = LocalFS.OpenFile(args[1],"rb");
+            if(f != nullptr)
+            {
+                auto path = Environment::GetRealExecutablePath(args2[0]);
+                Platform::Process p(path.ToString(),args2);
+                p.redirectStdIn=true;
+                if(p.Start())
+                {
+                    auto strm = p.GetStdinStream();
+                    f->CopyTo(strm);
+                    delete strm;
+                    p.CloseStdInNow();
+                    p.WaitForExit();
+                }
+                delete f;
+            }
+        }
+        else {
+            auto path = Environment::GetRealExecutablePath(args[0]);
+            Platform::Process p(path.ToString(),args);
+            p.Start();
+            p.WaitForExit();
+        }
+    }
+
+    TF_Quit();
+}