LCOV - code coverage report
Current view: directory - parser/htmlparser/src - nsParserNode.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 112 40 35.7 %
Date: 2012-06-02 Functions: 28 9 32.1 %

       1                 : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2                 : /* ***** BEGIN LICENSE BLOCK *****
       3                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       4                 :  *
       5                 :  * The contents of this file are subject to the Mozilla Public License Version
       6                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       7                 :  * the License. You may obtain a copy of the License at
       8                 :  * http://www.mozilla.org/MPL/
       9                 :  *
      10                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      11                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      12                 :  * for the specific language governing rights and limitations under the
      13                 :  * License.
      14                 :  *
      15                 :  * The Original Code is mozilla.org code.
      16                 :  *
      17                 :  * The Initial Developer of the Original Code is
      18                 :  * Netscape Communications Corporation.
      19                 :  * Portions created by the Initial Developer are Copyright (C) 1998
      20                 :  * the Initial Developer. All Rights Reserved.
      21                 :  *
      22                 :  * Contributor(s):
      23                 :  *
      24                 :  * Alternatively, the contents of this file may be used under the terms of
      25                 :  * either of the GNU General Public License Version 2 or later (the "GPL"),
      26                 :  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      27                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      28                 :  * of those above. If you wish to allow use of your version of this file only
      29                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      30                 :  * use your version of this file under the terms of the MPL, indicate your
      31                 :  * decision by deleting the provisions above and replace them with the notice
      32                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      33                 :  * the provisions above, a recipient may use your version of this file under
      34                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      35                 :  *
      36                 :  * ***** END LICENSE BLOCK ***** */
      37                 : 
      38                 : 
      39                 : #include "nsIAtom.h"
      40                 : #include "nsParserNode.h" 
      41                 : #include <string.h>
      42                 : #include "nsHTMLTokens.h"
      43                 : #include "nsITokenizer.h"
      44                 : #include "nsDTDUtils.h"
      45                 : 
      46                 : 
      47                 : /**
      48                 :  *  Default Constructor
      49                 :  */
      50               0 : nsCParserNode::nsCParserNode()
      51                 :   : mRefCnt(0), mGenericState(false), mUseCount(0), mToken(nsnull),
      52               0 :     mTokenAllocator(nsnull)
      53                 : {
      54               0 :   MOZ_COUNT_CTOR(nsCParserNode);
      55                 : #ifdef HEAP_ALLOCATED_NODES
      56                 :   mNodeAllocator = nsnull;
      57                 : #endif
      58               0 : }
      59                 : 
      60                 : /**
      61                 :  *  Constructor
      62                 :  *  
      63                 :  *  @update  gess 3/25/98
      64                 :  *  @param   aToken -- token to init internal token
      65                 :  *  @return  
      66                 :  */
      67            1967 : nsCParserNode::nsCParserNode(CToken* aToken,
      68                 :                              nsTokenAllocator* aTokenAllocator,
      69                 :                              nsNodeAllocator* aNodeAllocator)
      70                 :   : mRefCnt(0), mGenericState(false), mUseCount(0), mToken(aToken),
      71            1967 :     mTokenAllocator(aTokenAllocator)
      72                 : {
      73            1967 :   MOZ_COUNT_CTOR(nsCParserNode);
      74                 : 
      75                 :   static int theNodeCount = 0;
      76            1967 :   ++theNodeCount;
      77            1967 :   if (mTokenAllocator) {
      78            1967 :     IF_HOLD(mToken);
      79                 :   } // Else a stack-based token
      80                 : 
      81                 : #ifdef HEAP_ALLOCATED_NODES
      82                 :   mNodeAllocator = aNodeAllocator;
      83                 : #endif
      84            1967 : }
      85                 : 
      86                 : /**
      87                 :  *  destructor
      88                 :  *  NOTE: We intentionally DON'T recycle mToken here.
      89                 :  *        It may get cached for use elsewhere
      90                 :  *  @update  gess 3/25/98
      91                 :  *  @param   
      92                 :  *  @return  
      93                 :  */
      94            1967 : nsCParserNode::~nsCParserNode() {
      95            1967 :   MOZ_COUNT_DTOR(nsCParserNode);
      96            1967 :   ReleaseAll();
      97                 : #ifdef HEAP_ALLOCATED_NODES
      98                 :   if(mNodeAllocator) {
      99                 :     mNodeAllocator->Recycle(this);
     100                 :   }
     101                 :   mNodeAllocator = nsnull;
     102                 : #endif
     103            1967 :   mTokenAllocator = 0;
     104            1967 : }
     105                 : 
     106                 : 
     107                 : /**
     108                 :  *  Init
     109                 :  *  
     110                 :  *  @update  gess 3/25/98
     111                 :  *  @param   
     112                 :  *  @return  
     113                 :  */
     114                 : 
     115                 : nsresult
     116               0 : nsCParserNode::Init(CToken* aToken,
     117                 :                     nsTokenAllocator* aTokenAllocator,
     118                 :                     nsNodeAllocator* aNodeAllocator) 
     119                 : {
     120               0 :   mTokenAllocator = aTokenAllocator;
     121               0 :   mToken = aToken;
     122               0 :   if (mTokenAllocator) {
     123               0 :     IF_HOLD(mToken);
     124                 :   } // Else a stack-based token
     125               0 :   mGenericState = false;
     126               0 :   mUseCount=0;
     127                 : #ifdef HEAP_ALLOCATED_NODES
     128                 :   mNodeAllocator = aNodeAllocator;
     129                 : #endif
     130               0 :   return NS_OK;
     131                 : }
     132                 : 
     133                 : void
     134               0 : nsCParserNode::AddAttribute(CToken* aToken) 
     135                 : {
     136               0 : }
     137                 : 
     138                 : 
     139                 : /**
     140                 :  *  Gets the name of this node. Currently unused.
     141                 :  *  
     142                 :  *  @update  gess 3/25/98
     143                 :  *  @param   
     144                 :  *  @return  string ref containing node name
     145                 :  */
     146                 : const nsAString&
     147               0 : nsCParserNode::GetTagName() const {
     148               0 :   return EmptyString();
     149                 : }
     150                 : 
     151                 : 
     152                 : /**
     153                 :  *  Get text value of this node, which translates into 
     154                 :  *  getting the text value of the underlying token
     155                 :  *  
     156                 :  *  @update  gess 3/25/98
     157                 :  *  @param   
     158                 :  *  @return  string ref of text from internal token
     159                 :  */
     160                 : const nsAString& 
     161             306 : nsCParserNode::GetText() const 
     162                 : {
     163             306 :   if (mToken) {
     164             306 :     return mToken->GetStringValue();
     165                 :   }
     166               0 :   return EmptyString();
     167                 : }
     168                 : 
     169                 : /**
     170                 :  *  Get node type, meaning, get the tag type of the 
     171                 :  *  underlying token
     172                 :  *  
     173                 :  *  @update  gess 3/25/98
     174                 :  *  @param   
     175                 :  *  @return  int value that represents tag type
     176                 :  */
     177                 : PRInt32 
     178            4784 : nsCParserNode::GetNodeType(void) const
     179                 : {
     180            4784 :   return (mToken) ? mToken->GetTypeID() : 0;
     181                 : }
     182                 : 
     183                 : 
     184                 : /**
     185                 :  *  Gets the token type, which corresponds to a value from
     186                 :  *  eHTMLTokens_xxx.
     187                 :  *  
     188                 :  *  @update  gess 3/25/98
     189                 :  *  @param   
     190                 :  *  @return  
     191                 :  */
     192                 : PRInt32 
     193               0 : nsCParserNode::GetTokenType(void) const
     194                 : {
     195               0 :   return (mToken) ? mToken->GetTokenType() : 0;
     196                 : }
     197                 : 
     198                 : 
     199                 : /**
     200                 :  *  Retrieve the number of attributes on this node
     201                 :  *  
     202                 :  *  @update  gess 3/25/98
     203                 :  *  @param   
     204                 :  *  @return  int -- representing attribute count
     205                 :  */
     206                 : PRInt32 
     207               0 : nsCParserNode::GetAttributeCount(bool askToken) const
     208                 : {
     209               0 :   return 0;
     210                 : }
     211                 : 
     212                 : /**
     213                 :  *  Retrieve the string rep of the attribute key at the
     214                 :  *  given index.
     215                 :  *  
     216                 :  *  @update  gess 3/25/98
     217                 :  *  @param   anIndex-- offset of attribute to retrieve
     218                 :  *  @return  string rep of given attribute text key
     219                 :  */
     220                 : const nsAString&
     221               0 : nsCParserNode::GetKeyAt(PRUint32 anIndex) const 
     222                 : {
     223               0 :   return EmptyString();
     224                 : }
     225                 : 
     226                 : 
     227                 : /**
     228                 :  *  Retrieve the string rep of the attribute at given offset
     229                 :  *  
     230                 :  *  @update  gess 3/25/98
     231                 :  *  @param   anIndex-- offset of attribute to retrieve
     232                 :  *  @return  string rep of given attribute text value
     233                 :  */
     234                 : const nsAString&
     235               0 : nsCParserNode::GetValueAt(PRUint32 anIndex) const 
     236                 : {
     237               0 :   return EmptyString();
     238                 : }
     239                 : 
     240                 : PRInt32 
     241               0 : nsCParserNode::TranslateToUnicodeStr(nsString& aString) const
     242                 : {
     243               0 :   if (eToken_entity == mToken->GetTokenType()) {
     244               0 :     return ((CEntityToken*)mToken)->TranslateToUnicodeStr(aString);
     245                 :   }
     246               0 :   return -1;
     247                 : }
     248                 : 
     249                 : /**
     250                 :  * This getter retrieves the line number from the input source where
     251                 :  * the token occurred. Lines are interpreted as occurring between \n characters.
     252                 :  * @update      gess7/24/98
     253                 :  * @return  int containing the line number the token was found on
     254                 :  */
     255                 : PRInt32
     256               0 : nsCParserNode::GetSourceLineNumber(void) const {
     257               0 :   return mToken ? mToken->GetLineNumber() : 0;
     258                 : }
     259                 : 
     260                 : /**
     261                 :  * This method pop the attribute token
     262                 :  * @update      harishd 03/25/99
     263                 :  * @return  token at anIndex
     264                 :  */
     265                 : 
     266                 : CToken* 
     267               0 : nsCParserNode::PopAttributeToken() {
     268               0 :   return 0;
     269                 : }
     270                 : 
     271                 : CToken* 
     272               0 : nsCParserNode::PopAttributeTokenFront() {
     273               0 :   return 0;
     274                 : }
     275                 : 
     276                 : /** Retrieve a string containing the tag and its attributes in "source" form
     277                 :  * @update      rickg 06June2000
     278                 :  * @return  void
     279                 :  */
     280                 : void 
     281               0 : nsCParserNode::GetSource(nsString& aString) const
     282                 : {
     283               0 :   eHTMLTags theTag = mToken ? (eHTMLTags)mToken->GetTypeID() : eHTMLTag_unknown;
     284               0 :   aString.Assign(PRUnichar('<'));
     285               0 :   const PRUnichar* theTagName = nsHTMLTags::GetStringValue(theTag);
     286               0 :   if(theTagName) {
     287               0 :     aString.Append(theTagName);
     288                 :   }
     289               0 :   aString.Append(PRUnichar('>'));
     290               0 : }
     291                 : 
     292                 : /** Release all the objects you're holding to.
     293                 :  * @update      harishd 08/02/00
     294                 :  * @return  void
     295                 :  */
     296                 : nsresult 
     297            1967 : nsCParserNode::ReleaseAll() 
     298                 : {
     299            1967 :   if(mTokenAllocator) {
     300            1967 :     IF_FREE(mToken,mTokenAllocator);
     301                 :   }
     302            1967 :   return NS_OK;
     303                 : }
     304                 : 
     305                 : nsresult 
     306               0 : nsCParserStartNode::Init(CToken* aToken,
     307                 :                          nsTokenAllocator* aTokenAllocator,
     308                 :                          nsNodeAllocator* aNodeAllocator) 
     309                 : {
     310               0 :   NS_ASSERTION(mAttributes.GetSize() == 0, "attributes not recycled!");
     311               0 :   return nsCParserNode::Init(aToken, aTokenAllocator, aNodeAllocator);
     312                 : }
     313                 : 
     314             732 : void nsCParserStartNode::AddAttribute(CToken* aToken) 
     315                 : {
     316             732 :   NS_ASSERTION(0 != aToken, "Error: Token shouldn't be null!");
     317             732 :   mAttributes.Push(aToken);
     318             732 : }
     319                 : 
     320                 : PRInt32 
     321             233 : nsCParserStartNode::GetAttributeCount(bool askToken) const
     322                 : {
     323             233 :   PRInt32 result = 0;
     324             233 :   if (askToken) {
     325               0 :     result = mToken ? mToken->GetAttributeCount() : 0;
     326                 :   }
     327                 :   else {
     328             233 :     result = mAttributes.GetSize();
     329                 :   }
     330             233 :   return result;
     331                 : }
     332                 : 
     333                 : const nsAString&
     334            1067 : nsCParserStartNode::GetKeyAt(PRUint32 anIndex) const 
     335                 : {
     336            1067 :   if ((PRInt32)anIndex < mAttributes.GetSize()) {
     337                 :     CAttributeToken* attr = 
     338            1067 :       static_cast<CAttributeToken*>(mAttributes.ObjectAt(anIndex));
     339            1067 :     if (attr) {
     340            1067 :       return attr->GetKey();
     341                 :     }
     342                 :   }
     343               0 :   return EmptyString();
     344                 : }
     345                 : 
     346                 : const nsAString&
     347             621 : nsCParserStartNode::GetValueAt(PRUint32 anIndex) const 
     348                 : {
     349             621 :   if (PRInt32(anIndex) < mAttributes.GetSize()) {
     350                 :     CAttributeToken* attr = 
     351             621 :       static_cast<CAttributeToken*>(mAttributes.ObjectAt(anIndex));
     352             621 :     if (attr) {
     353             621 :       return attr->GetValue();
     354                 :     }
     355                 :   }
     356               0 :   return EmptyString();
     357                 : }
     358                 : 
     359                 : CToken* 
     360               0 : nsCParserStartNode::PopAttributeToken() 
     361                 : {
     362               0 :   return static_cast<CToken*>(mAttributes.Pop());
     363                 : }
     364                 : 
     365                 : CToken* 
     366               0 : nsCParserStartNode::PopAttributeTokenFront() 
     367                 : {
     368               0 :   return static_cast<CToken*>(mAttributes.PopFront());
     369                 : }
     370                 : 
     371               0 : void nsCParserStartNode::GetSource(nsString& aString) const
     372                 : {
     373               0 :   aString.Assign(PRUnichar('<'));
     374                 :   const PRUnichar* theTagName = 
     375               0 :     nsHTMLTags::GetStringValue(nsHTMLTag(mToken->GetTypeID()));
     376               0 :   if (theTagName) {
     377               0 :     aString.Append(theTagName);
     378                 :   }
     379                 :   PRInt32 index;
     380               0 :   PRInt32 size = mAttributes.GetSize();
     381               0 :   for (index = 0 ; index < size; ++index) {
     382                 :     CAttributeToken *theToken = 
     383               0 :       static_cast<CAttributeToken*>(mAttributes.ObjectAt(index));
     384               0 :     if (theToken) {
     385               0 :       theToken->AppendSourceTo(aString);
     386               0 :       aString.Append(PRUnichar(' ')); //this will get removed...
     387                 :     }
     388                 :   }
     389               0 :   aString.Append(PRUnichar('>'));
     390               0 : }
     391                 : 
     392               0 : nsresult nsCParserStartNode::ReleaseAll() 
     393                 : {
     394               0 :   NS_ASSERTION(0!=mTokenAllocator, "Error: no token allocator");
     395                 :   CToken* theAttrToken;
     396               0 :   while ((theAttrToken = static_cast<CToken*>(mAttributes.Pop()))) {
     397               0 :     IF_FREE(theAttrToken, mTokenAllocator);
     398                 :   }
     399               0 :   nsCParserNode::ReleaseAll();
     400               0 :   return NS_OK; 
     401                 : }
     402                 : 

Generated by: LCOV version 1.7