pjs/layout/html/tests/TestCSSScanner.cpp

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: NPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Netscape Public License
 * Version 1.1 (the "License"); you may not use this file except in
 * compliance with the License. You may obtain a copy of the License at
 * http://www.mozilla.org/NPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is mozilla.org code.
 *
 * The Initial Developer of the Original Code is 
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 1998
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Pierre Phaneuf <pp@ludusdesign.com>
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or 
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the NPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the NPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */
#include <stdio.h>
#include "nsCSSScanner.h"
#include "nsIURL.h"
#include "nsNetUtil.h"
#include "nsIIOService.h"
#include "nsIURL.h"
#include "nsIServiceManager.h"
static NS_DEFINE_CID(kIOServiceCID, NS_IOSERVICE_CID);
#include "nsIInputStream.h"
#include "nsIUnicharInputStream.h"
#include "nsString.h"

int main(int argc, char** argv)
{
  if (2 != argc) {
    printf("usage: TestCSSScanner url\n");
    return -1;
  }

  // Create url object
  char* urlName = argv[1];
  nsIURI* url;
  nsresult rv;
  nsCOMPtr<nsIIOService> service(do_GetService(kIOServiceCID, &rv));
  if (NS_FAILED(rv)) return -1;

  nsIURI *uri = nsnull;
  rv = service->NewURI(urlName, nsnull, &uri);
  if (NS_FAILED(rv)) return -1;

  rv = uri->QueryInterface(NS_GET_IID(nsIURI), (void**)&url);
  NS_RELEASE(uri);
  if (NS_OK != rv) {
    printf("invalid URL: '%s'\n", urlName);
    return -1;
  }

  // Get an input stream from the url
  nsIInputStream* in;
  rv = NS_OpenURI(&in, url);
  if (rv != NS_OK) {
    printf("open of url('%s') failed: error=%x\n", urlName, rv);
    return -1;
  }

  // Translate the input using the argument character set id into unicode
  nsIUnicharInputStream* uin;
  rv = NS_NewConverterStream(&uin, nsnull, in);
  if (NS_OK != rv) {
    printf("can't create converter input stream: %d\n", rv);
    return -1;
  }

  // Create scanner and set it up to process the input file
  nsCSSScanner* css = new nsCSSScanner();
  if (nsnull == css) {
    printf("Out of memory allocating nsCSSScanner\n");
    return -1;
  }

  css->Init(uin, url);
  

  // Scan the file and dump out the tokens
  nsCSSToken tok;
  PRInt32 ec;
  for (;;) {
    char buf[20];
    if (!css->Next(ec, tok)) {
      break;
    }
    printf("%02d: ", tok.mType);
    switch (tok.mType) {
    case eCSSToken_Ident:
    case eCSSToken_AtKeyword:
    case eCSSToken_String:
    case eCSSToken_Function:
    case eCSSToken_WhiteSpace:
    case eCSSToken_URL:
    case eCSSToken_InvalidURL:
    case eCSSToken_ID:
    case eCSSToken_HTMLComment:
      fputs(tok.mIdent, stdout);
      fputs("\n", stdout);
      break;

    case eCSSToken_Number:
      printf("%g\n", tok.mNumber);
      break;
    case eCSSToken_Percentage:
      printf("%g%%\n", tok.mNumber * 100.0f);
      break;
    case eCSSToken_Dimension:
      tok.mIdent.ToCString(buf, sizeof(buf));
      printf("%g%s\n", tok.mNumber, buf);
      break;
    case eCSSToken_Symbol:
      printf("%c (%x)\n", tok.mSymbol, tok.mSymbol);
      break;
    }
  }

  delete css;
  uin->Release();
  in->Release();
  url->Release();

  return 0;
}