Add a "read" extension to the shell programs. This global function...

samples/shell.cc

Index: samples/shell.cc
===================================================================
--- samples/shell.cc	(revision 1738)
+++ samples/shell.cc	(working copy)
@@ -38,6 +38,7 @@
                    bool print_result,
                    bool report_exceptions);
 v8::Handle<v8::Value> Print(const v8::Arguments& args);
+v8::Handle<v8::Value> Read(const v8::Arguments& args);
 v8::Handle<v8::Value> Load(const v8::Arguments& args);
 v8::Handle<v8::Value> Quit(const v8::Arguments& args);
 v8::Handle<v8::Value> Version(const v8::Arguments& args);
@@ -52,6 +53,8 @@
   v8::Handle<v8::ObjectTemplate> global = v8::ObjectTemplate::New();
   // Bind the global 'print' function to the C++ Print callback.
   global->Set(v8::String::New("print"), v8::FunctionTemplate::New(Print));
+  // Bind the global 'read' function to the C++ Read callback.
+  global->Set(v8::String::New("read"), v8::FunctionTemplate::New(Read));
   // Bind the global 'load' function to the C++ Load callback.
   global->Set(v8::String::New("load"), v8::FunctionTemplate::New(Load));
   // Bind the 'quit' function
@@ -135,6 +138,25 @@
 }
 
 
+// The callback that is invoked by v8 whenever the JavaScript 'read'
+// function is called.  This function loads the content of the file named in
+// the argument into a JavaScript string.
+v8::Handle<v8::Value> Read(const v8::Arguments& args) {
+  if (args.Length() != 1) {
+    return v8::ThrowException(v8::String::New("Bad parameters"));
+  }
+  v8::String::Utf8Value file(args[0]);
+  if (*file == NULL) {
+    return v8::ThrowException(v8::String::New("Error loading file"));
+  }
+  v8::Handle<v8::String> source = ReadFile(*file);
+  if (source.IsEmpty()) {
+    return v8::ThrowException(v8::String::New("Error loading file"));
+  }
+  return source;
+}
+
+
 // The callback that is invoked by v8 whenever the JavaScript 'load'
 // function is called.  Loads, compiles and executes its argument
 // JavaScript file.