text: /*
   * Copyright 2012 Jacek Caban for CodeWeavers
   *
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Lesser General Public
   * License as published by the Free Software Foundation; either
   * version 2.1 of the License, or (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
   */
  
  #include "jscript.h"
  
  #include "wine/debug.h"
  
  const char *debugstr_jsstr(jsstr_t *str)
  {
      return debugstr_wn(str->str, jsstr_length(str));
  }
  
  jsstr_t *jsstr_alloc_buf(unsigned len)
  {
      jsstr_t *ret;
  
      if(len > JSSTR_MAX_LENGTH)
          return NULL;
  
      ret = heap_alloc(FIELD_OFFSET(jsstr_t, str[len+1]));
      if(!ret)
          return NULL;
  
      ret->length_flags = len << JSSTR_LENGTH_SHIFT;
      ret->ref = 1;
      ret->str[len] = 0;
      return ret;
  }
  
  jsstr_t *jsstr_alloc_len(const WCHAR *buf, unsigned len)
  {
      jsstr_t *ret;
  
      ret = jsstr_alloc_buf(len);
      if(ret)
          memcpy(ret->str, buf, len*sizeof(WCHAR));
  
      return ret;
  }
  
  int jsstr_cmp(jsstr_t *str1, jsstr_t *str2)
  {
      int len1 = jsstr_length(str1);
      int len2 = jsstr_length(str2);
      int ret;
  
      ret = memcmp(str1->str, str2->str, min(len1, len2)*sizeof(WCHAR));
      if(!ret)
          ret = len1 - len2;
  
      return ret;
  }
  
  static jsstr_t *empty_str, *nan_str;
  
  jsstr_t *jsstr_nan(void)
  {
      return jsstr_addref(nan_str);
  }
  
  jsstr_t *jsstr_empty(void)
  {
      return jsstr_addref(empty_str);
  }
  
  BOOL init_strings(void)
  {
      static const WCHAR NaNW[] = { 'N','a','N',0 };
  
      if(!(empty_str = jsstr_alloc_buf(0)))
          return FALSE;
      if(!(nan_str = jsstr_alloc(NaNW)))
          return FALSE;
      return TRUE;
  }
  
  void free_strings(void)
  {
      jsstr_release(empty_str);
      jsstr_release(nan_str);
  }
  