Add a safe API for creating ASCII-only strings

include/v8.h

 // Copyright 2012 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 1244 matching lines @@
    * Allocates a new string from either UTF-8 encoded or ASCII data.
    * The second parameter 'length' gives the buffer length.
    * If the data is UTF-8 encoded, the caller must
    * be careful to supply the length parameter.
    * If it is not given, the function calls
    * 'strlen' to determine the buffer length, it might be
    * wrong if 'data' contains a null character.
    */
   V8EXPORT static Local<String> New(const char* data, int length = -1);
 
+  /**
+   * Allocates a new string from ASCII data.
+   * Any non-ASCII characters will have the high bit stripped.
+   * The second parameter 'length' gives the buffer length.
+   */
+  V8EXPORT static Local<String> NewFromAscii(const char* data, int length = -1);
+
   /** Allocates a new string from 16-bit character codes.*/
   V8EXPORT static Local<String> New(const uint16_t* data, int length = -1);
 
   /** Creates a symbol. Returns one if it exists already.*/
   V8EXPORT static Local<String> NewSymbol(const char* data, int length = -1);
 
   /**
    * Creates a new string by concatenating the left and the right strings
    * passed in as parameters.
    */
@@ skipping 3594 matching lines @@
 
 
 }  // namespace v8
 
 
 #undef V8EXPORT
 #undef TYPE_CHECK
 
 
 #endif  // V8_H_