Added context sensitive prompt for remote debugger. It now shows "> "...

src/d8-debug.cc

 // Copyright 2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 16 matching lines @@
 
 
 #include "d8.h"
 #include "d8-debug.h"
 #include "platform.h"
 #include "debug-agent.h"
 
 
 namespace v8 {
 
+static bool was_running = true;
+
+void PrintPrompt(bool is_running) {
+  const char* prompt = is_running? "> " : "dbg> ";
+  was_running = is_running;
+  printf("%s", prompt);
+  fflush(stdout);
+}
+
+
 void PrintPrompt() {
-  printf("dbg> ");
-  fflush(stdout);
+  PrintPrompt(was_running);
 }
 
 
 void HandleDebugEvent(DebugEvent event,
                       Handle<Object> exec_state,
                       Handle<Object> event_data,
                       Handle<Value> data) {
   HandleScope scope;
 
   // Check for handled event.
@@ skipping 34 matching lines @@
       Object::Cast(*fun->Call(exec_state, 0, NULL));
   if (try_catch.HasCaught()) {
     Shell::ReportException(&try_catch);
     return;
   }
 
   static const int kBufferSize = 256;
   bool running = false;
   while (!running) {
     char command[kBufferSize];
-    PrintPrompt();
+    PrintPrompt(running);
     char* str = fgets(command, kBufferSize, stdin);
     if (str == NULL) break;
 
     // Ignore empty commands.
     if (strlen(command) == 0) continue;
 
     TryCatch try_catch;
 
     // Convert the debugger command to a JSON debugger request.
     Handle<Value> request =
@@ skipping 172 matching lines @@
   String::Utf8Value str(details->Get(String::New("text")));
   if (str.length() == 0) {
     // Empty string is used to signal not to process this event.
     return;
   }
   if (*str != NULL) {
     printf("%s\n", *str);
   } else {
     printf("???\n");
   }
-  PrintPrompt();
+
+  bool is_running = details->Get(String::New("running"))->ToBoolean()->Value();
+  PrintPrompt(is_running);
 }
 
 
 void RemoteDebugger::HandleKeyboardCommand(char* command) {
   HandleScope scope;
 
   // Convert the debugger command to a JSON debugger request.
   TryCatch try_catch;
   Handle<Value> request =
       Shell::DebugCommandToJSONRequest(String::New(command));
@@ skipping 49 matching lines @@
     }
 
     // Pass the keyboard command to the main thread.
     remote_debugger_->KeyboardCommand(
         i::SmartPointer<char>(i::StrDup(command)));
   }
 }
 
 
 }  // namespace v8