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Mozilla/mozilla/parser/htmlparser/src/nsHTMLToTXTSinkStream.cpp
akkana%netscape.com 2300ca567a - Add a prettyprint flag to the html-to-text sink (false by default). 
When prettyprinting is on, we will attempt to make the plaintext
  mimic the look of the html; when off (as for copy/paste), we just
  dump the text with no formatting information.


git-svn-id: svn://10.0.0.236/trunk@36966 18797224-902f-48f8-a5cc-f745e15eee43
1999-06-26 00:01:11 +00:00

963 lines
22 KiB
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (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 Communicator client code.
*
* The Initial Developer of the Original Code is Netscape Communications
* Corporation. Portions created by Netscape are Copyright (C) 1998
* Netscape Communications Corporation. All Rights Reserved.
*/
/**
* MODULE NOTES:
*
* This file declares the concrete TXT ContentSink class.
* This class is used during the parsing process as the
* primary interface between the parser and the content
* model.
*/
#include "nsHTMLToTXTSinkStream.h"
#include "nsHTMLTokens.h"
#include <iostream.h>
#include "nsString.h"
#include "nsIParser.h"
#include "nsHTMLEntities.h"
#include "nsXIFDTD.h"
#include "nsIUnicodeEncoder.h"
#include "nsICharsetAlias.h"
#include "nsIServiceManager.h"
#include "nsICharsetConverterManager.h"
#include "nsIOutputStream.h"
#include "nsFileStream.h"
static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
static NS_DEFINE_IID(kIContentSinkIID, NS_ICONTENT_SINK_IID);
static NS_DEFINE_IID(kIHTMLContentSinkIID, NS_IHTML_CONTENT_SINK_IID);
const int gTabSize=2;
static PRBool IsInline(eHTMLTags aTag);
static PRBool IsBlockLevel(eHTMLTags aTag);
/**
* Inits the encoder instance variable for the sink based on the charset
*
* @update gpk 4/21/99
* @param aCharset
* @return NS_xxx error result
*/
nsresult nsHTMLToTXTSinkStream::InitEncoder(const nsString& aCharset)
{
nsresult res = NS_OK;
// If the converter is ucs2, then do not use a converter
nsString ucs2("ucs2");
if (aCharset.Equals(ucs2))
{
NS_IF_RELEASE(mUnicodeEncoder);
return res;
}
nsICharsetAlias* calias = nsnull;
res = nsServiceManager::GetService(kCharsetAliasCID,
kICharsetAliasIID,
(nsISupports**)&calias);
NS_ASSERTION( nsnull != calias, "cannot find charset alias");
nsAutoString charsetName = aCharset;
if( NS_SUCCEEDED(res) && (nsnull != calias))
{
res = calias->GetPreferred(aCharset, charsetName);
nsServiceManager::ReleaseService(kCharsetAliasCID, calias);
if(NS_FAILED(res))
{
// failed - unknown alias , fallback to ISO-8859-1
charsetName = "ISO-8859-1";
}
nsICharsetConverterManager * ccm = nsnull;
res = nsServiceManager::GetService(kCharsetConverterManagerCID,
kICharsetConverterManagerIID,
(nsISupports**)&ccm);
if(NS_SUCCEEDED(res) && (nsnull != ccm))
{
nsIUnicodeEncoder * encoder = nsnull;
res = ccm->GetUnicodeEncoder(&charsetName, &encoder);
if(NS_SUCCEEDED(res) && (nsnull != encoder))
{
NS_IF_RELEASE(mUnicodeEncoder);
mUnicodeEncoder = encoder;
}
nsServiceManager::ReleaseService(kCharsetConverterManagerCID, ccm);
}
}
return res;
}
/**
* This method gets called as part of our COM-like interfaces.
* Its purpose is to create an interface to parser object
* of some type.
*
* @update gpk02/03/99
* @param nsIID id of object to discover
* @param aInstancePtr ptr to newly discovered interface
* @return NS_xxx result code
*/
nsresult
nsHTMLToTXTSinkStream::QueryInterface(const nsIID& aIID, void** aInstancePtr)
{
if (NULL == aInstancePtr) {
return NS_ERROR_NULL_POINTER;
}
if(aIID.Equals(kISupportsIID)) {
*aInstancePtr = (nsIContentSink*)(this);
}
else if(aIID.Equals(kIContentSinkIID)) {
*aInstancePtr = (nsIContentSink*)(this);
}
else if(aIID.Equals(kIHTMLContentSinkIID)) {
*aInstancePtr = (nsIHTMLContentSink*)(this);
}
else {
*aInstancePtr=0;
return NS_NOINTERFACE;
}
NS_ADDREF_THIS();
return NS_OK;
}
NS_IMPL_ADDREF(nsHTMLToTXTSinkStream)
NS_IMPL_RELEASE(nsHTMLToTXTSinkStream)
/**
* This method creates a new sink, it sets the stream used
* for the sink to aStream
*
* @update gpk 04/30/99
*/
NS_HTMLPARS nsresult
NS_New_HTMLToTXT_SinkStream(nsIHTMLContentSink** aInstancePtrResult,
nsIOutputStream* aStream,
const nsString* aCharsetOverride,
PRBool aPrettyPrint)
{
NS_ASSERTION(aStream != nsnull, "a valid stream is required");
nsHTMLToTXTSinkStream* it = new nsHTMLToTXTSinkStream(aStream, nsnull);
if (nsnull == it) {
return NS_ERROR_OUT_OF_MEMORY;
}
it->DoPrettyPrint(aPrettyPrint);
if (aCharsetOverride != nsnull)
it->SetCharsetOverride(aCharsetOverride);
return it->QueryInterface(kIHTMLContentSinkIID, (void **)aInstancePtrResult);
}
/**
* This method creates a new sink, it sets the stream used
* for the sink to aStream
*
* @update gpk 04/30/99
*/
NS_HTMLPARS nsresult
NS_New_HTMLToTXT_SinkStream(nsIHTMLContentSink** aInstancePtrResult,
nsString* aString, PRBool aPrettyPrint)
{
NS_ASSERTION(aString != nsnull, "a valid stream is required");
nsHTMLToTXTSinkStream* it = new nsHTMLToTXTSinkStream(nsnull, aString);
if (nsnull == it) {
return NS_ERROR_OUT_OF_MEMORY;
}
it->DoPrettyPrint(aPrettyPrint);
nsString ucs2("ucs2");
it->SetCharsetOverride(&ucs2);
return it->QueryInterface(kIHTMLContentSinkIID, (void **)aInstancePtrResult);
}
/**
* Construct a content sink stream.
* @update gpk02/03/99
* @param
* @return
*/
nsHTMLToTXTSinkStream::nsHTMLToTXTSinkStream(nsIOutputStream* aStream,
nsString* aString)
{
NS_INIT_REFCNT();
mStream = aStream;
mColPos = 0;
mIndent = 0;
mDoOutput = PR_FALSE;
mBufferSize = 0;
mBufferLength = 0;
mBuffer = nsnull;
mUnicodeEncoder = nsnull;
mStream = aStream;
mString = aString;
mPrettyPrint = PR_FALSE;
mPreformatted = PR_FALSE;
mWrapColumn = 72; // XXX magic number, obviously needs to be settable
}
/**
*
* @update gpk02/03/99
* @param
* @return
*/
nsHTMLToTXTSinkStream::~nsHTMLToTXTSinkStream()
{
delete [] mBuffer;
NS_IF_RELEASE(mUnicodeEncoder);
}
NS_IMETHODIMP
nsHTMLToTXTSinkStream::DoPrettyPrint(PRBool aDoPrettyPrint)
{
mPrettyPrint = aDoPrettyPrint;
return NS_OK;
}
/**
*
* @update gpk04/30/99
* @param
* @return
*/
NS_IMETHODIMP
nsHTMLToTXTSinkStream::SetCharsetOverride(const nsString* aCharset)
{
if (aCharset)
{
mCharsetOverride = *aCharset;
InitEncoder(mCharsetOverride);
}
return NS_OK;
}
/**
* This method gets called by the parser when it encounters
* a title tag and wants to set the document title in the sink.
*
* @update gpk02/03/99
* @param nsString reference to new title value
* @return PR_TRUE if successful.
*/
NS_IMETHODIMP
nsHTMLToTXTSinkStream::SetTitle(const nsString& aValue){
return NS_OK;
}
/**
* This method is used to open the outer HTML container.
*
* @update 07/12/98 gpk
* @param nsIParserNode reference to parser node interface
* @return PR_TRUE if successful.
*/
NS_IMETHODIMP
nsHTMLToTXTSinkStream::OpenHTML(const nsIParserNode& aNode){
return NS_OK;
}
/**
* This method is used to close the outer HTML container.
*
* @update 07/12/98 gpk
* @param nsIParserNode reference to parser node interface
* @return PR_TRUE if successful.
*/
NS_IMETHODIMP
nsHTMLToTXTSinkStream::CloseHTML(const nsIParserNode& aNode){
return NS_OK;
}
/**
* This method is used to open the only HEAD container.
*
* @update 07/12/98 gpk
* @param nsIParserNode reference to parser node interface
* @return PR_TRUE if successful.
*/
NS_IMETHODIMP
nsHTMLToTXTSinkStream::OpenHead(const nsIParserNode& aNode){
return NS_OK;
}
/**
* This method is used to close the only HEAD container.
*
* @update 07/12/98 gpk
* @param nsIParserNode reference to parser node interface
* @return PR_TRUE if successful.
*/
NS_IMETHODIMP
nsHTMLToTXTSinkStream::CloseHead(const nsIParserNode& aNode){
return NS_OK;
}
/**
* This method is used to open the main BODY container.
*
* @update 07/12/98 gpk
* @param nsIParserNode reference to parser node interface
* @return PR_TRUE if successful.
*/
NS_IMETHODIMP
nsHTMLToTXTSinkStream::OpenBody(const nsIParserNode& aNode){
return NS_OK;
}
/**
* This method is used to close the main BODY container.
*
* @update 07/12/98 gpk
* @param nsIParserNode reference to parser node interface
* @return PR_TRUE if successful.
*/
NS_IMETHODIMP
nsHTMLToTXTSinkStream::CloseBody(const nsIParserNode& aNode){
return NS_OK;
}
/**
* This method is used to open a new FORM container.
*
* @update 07/12/98 gpk
* @param nsIParserNode reference to parser node interface
* @return PR_TRUE if successful.
*/
NS_IMETHODIMP
nsHTMLToTXTSinkStream::OpenForm(const nsIParserNode& aNode){
return NS_OK;
}
/**
* This method is used to close the outer FORM container.
*
* @update 07/12/98 gpk
* @param nsIParserNode reference to parser node interface
* @return PR_TRUE if successful.
*/
NS_IMETHODIMP
nsHTMLToTXTSinkStream::CloseForm(const nsIParserNode& aNode){
return NS_OK;
}
/**
* This method is used to open a new FORM container.
*
* @update 07/12/98 gpk
* @param nsIParserNode reference to parser node interface
* @return PR_TRUE if successful.
*/
NS_IMETHODIMP
nsHTMLToTXTSinkStream::OpenMap(const nsIParserNode& aNode){
return NS_OK;
}
/**
* This method is used to close the outer FORM container.
*
* @update 07/12/98 gpk
* @param nsIParserNode reference to parser node interface
* @return PR_TRUE if successful.
*/
NS_IMETHODIMP
nsHTMLToTXTSinkStream::CloseMap(const nsIParserNode& aNode){
return NS_OK;
}
/**
* This method is used to open the FRAMESET container.
*
* @update 07/12/98 gpk
* @param nsIParserNode reference to parser node interface
* @return PR_TRUE if successful.
*/
NS_IMETHODIMP
nsHTMLToTXTSinkStream::OpenFrameset(const nsIParserNode& aNode){
return NS_OK;
}
/**
* This method is used to close the FRAMESET container.
*
* @update 07/12/98 gpk
* @param nsIParserNode reference to parser node interface
* @return PR_TRUE if successful.
*/
NS_IMETHODIMP
nsHTMLToTXTSinkStream::CloseFrameset(const nsIParserNode& aNode){
return NS_OK;
}
NS_IMETHODIMP
nsHTMLToTXTSinkStream::DoFragment(PRBool aFlag)
{
if (aFlag)
mDoOutput = PR_TRUE;
return NS_OK;
}
/**
* This gets called when handling illegal contents, especially
* in dealing with tables. This method creates a new context.
*
* @update 04/04/99 harishd
* @param aPosition - The position from where the new context begins.
*/
NS_IMETHODIMP
nsHTMLToTXTSinkStream::BeginContext(PRInt32 aPosition)
{
return NS_OK;
}
/**
* This method terminates any new context that got created by
* BeginContext and switches back to the main context.
*
* @update 04/04/99 harishd
* @param aPosition - Validates the end of a context.
*/
NS_IMETHODIMP
nsHTMLToTXTSinkStream::EndContext(PRInt32 aPosition)
{
return NS_OK;
}
void nsHTMLToTXTSinkStream::EnsureBufferSize(PRInt32 aNewSize)
{
if (mBufferSize < aNewSize)
{
delete [] mBuffer;
mBufferSize = 2*aNewSize+1; // make the twice as large
mBuffer = new char[mBufferSize];
if(mBuffer){
mBuffer[0] = 0;
mBufferLength = 0;
}
}
}
void nsHTMLToTXTSinkStream::EncodeToBuffer(const nsString& aSrc)
{
if (mUnicodeEncoder == nsnull)
{
NS_WARNING("The unicode encoder needs to be initialized");
char* str = aSrc.ToNewCString();
EnsureBufferSize(aSrc.Length()+1);
strcpy(mBuffer, str);
delete[] str;
return;
}
#define CH_NBSP 160
PRInt32 length = aSrc.Length();
nsresult result;
if (mUnicodeEncoder != nsnull && length > 0)
{
EnsureBufferSize(length);
mBufferLength = mBufferSize;
mUnicodeEncoder->Reset();
result = mUnicodeEncoder->Convert(aSrc.GetUnicode(), &length, mBuffer, &mBufferLength);
mBuffer[mBufferLength] = 0;
PRInt32 temp = mBufferLength;
if (NS_SUCCEEDED(result))
result = mUnicodeEncoder->Finish(mBuffer,&temp);
for (PRInt32 i = 0; i < mBufferLength; i++)
{
if (mBuffer[i] == char(CH_NBSP))
mBuffer[i] = ' ';
}
}
}
/**
* Write places the contents of aString into either the output stream
* or the output string.
* When going to the stream, all data is run through the encoder
*
* @updated gpk02/03/99
* @param
* @return
*/
void nsHTMLToTXTSinkStream::Write(const nsString& aString)
{
// If a encoder is being used then convert first convert the input string
if (mUnicodeEncoder != nsnull)
{
EncodeToBuffer(aString);
if (mStream != nsnull)
{
nsOutputStream out(mStream);
out.write(mBuffer,mBufferLength);
}
if (mString != nsnull)
{
mString->Append(mBuffer);
}
}
else
{
if (mStream != nsnull)
{
nsOutputStream out(mStream);
const PRUnichar* unicode = aString.GetUnicode();
PRUint32 length = aString.Length();
out.write(unicode,length);
}
else
{
mString->Append(aString);
}
}
}
/**
* This gets called by the parser when you want to add
* a PI node to the current container in the content
* model.
*
* @updated gpk02/03/99
* @param
* @return
*/
NS_IMETHODIMP
nsHTMLToTXTSinkStream::AddProcessingInstruction(const nsIParserNode& aNode){
return NS_OK;
}
/**
* This gets called by the parser when you want to add
* a comment node to the current container in the content
* model.
*
* @updated gpk02/03/99
* @param
* @return
*/
NS_IMETHODIMP
nsHTMLToTXTSinkStream::AddComment(const nsIParserNode& aNode)
{
// Skip comments in plaintext output
mDoOutput = PR_FALSE;
return NS_OK;
}
/**
* This method is used to a general container.
* This includes: OL,UL,DIR,SPAN,TABLE,H[1..6],etc.
*
* @update 07/12/98 gpk
* @param nsIParserNode reference to parser node interface
* @return PR_TRUE if successful.
*/
NS_IMETHODIMP
nsHTMLToTXTSinkStream::OpenContainer(const nsIParserNode& aNode)
{
eHTMLTags type = (eHTMLTags)aNode.GetNodeType();
const nsString& name = aNode.GetText();
if (name.Equals("XIF_DOC_INFO"))
{
PRInt32 count=aNode.GetAttributeCount();
for(PRInt32 i=0;i<count;i++)
{
const nsString& key=aNode.GetKeyAt(i);
const nsString& value=aNode.GetValueAt(i);
if (key.Equals("charset"))
{
if (mCharsetOverride.Length() == 0)
InitEncoder(value);
else
InitEncoder(mCharsetOverride);
}
}
}
if (type == eHTMLTag_body)
mDoOutput = PR_TRUE;
else if (mDoOutput && type == eHTMLTag_li)
{
nsString temp("*");
Write(temp);
mColPos++;
}
else if (type == eHTMLTag_pre)
{
mPreformatted = PR_TRUE;
nsString temp(NS_LINEBREAK);
Write(temp);
mColPos = 0;
}
else if (type == eHTMLTag_blockquote)
mIndent += gTabSize;
return NS_OK;
}
/**
* This method is used to close a generic container.
*
* @update 07/12/98 gpk
* @param nsIParserNode reference to parser node interface
* @return PR_TRUE if successful.
*/
NS_IMETHODIMP
nsHTMLToTXTSinkStream::CloseContainer(const nsIParserNode& aNode)
{
eHTMLTags type = (eHTMLTags)aNode.GetNodeType();
if (type == eHTMLTag_body)
mDoOutput = PR_FALSE;
else if (type == eHTMLTag_comment)
{
mDoOutput = PR_TRUE;
return NS_OK;
}
else if (type == eHTMLTag_pre)
mPreformatted = PR_FALSE;
else if (type == eHTMLTag_blockquote)
mIndent -= gTabSize;
if (IsBlockLevel(type))
{
if (mColPos != 0)
{
if (mPrettyPrint)
{
nsString temp(NS_LINEBREAK);
Write(temp);
mColPos = 0;
}
}
}
return NS_OK;
}
/**
* This method is used to add a leaf to the currently
* open container.
*
* @update 07/12/98 gpk
* @param nsIParserNode reference to parser node interface
* @return PR_TRUE if successful.
*/
NS_IMETHODIMP
nsHTMLToTXTSinkStream::AddLeaf(const nsIParserNode& aNode)
{
eHTMLTags type = (eHTMLTags)aNode.GetNodeType();
nsString text = aNode.GetText();
if (mDoOutput == PR_FALSE)
return NS_OK;
if (type == eHTMLTag_text)
{
if (mColPos > mIndent)
{
nsString temp(" ");
Write(temp);
mColPos++;
}
if (mPrettyPrint)
WriteWrapped(text);
else
{
Write(text);
mColPos += text.Length();
}
}
else if (type == eHTMLTag_entity)
{
text = aNode.GetText();
EncodeToBuffer(text);
PRUnichar entity = NS_EntityToUnicode(mBuffer);
nsString temp;
temp.Append(entity);
Write(temp);
mColPos++;
}
else if (type == eHTMLTag_br)
{
if (mPrettyPrint)
{
nsString temp (NS_LINEBREAK);
Write(temp);
mColPos = 0;
}
}
// The only time we want to pass along whitespace from the original
// html source is if we're prettyprinting and we're inside a <pre>.
// Otherwise, either we're collapsing to minimal text, or we're
// prettyprinting to mimic the html format, and in neither case
// does the formatting of the html source help us.
else if (mPrettyPrint && mPreformatted && type == eHTMLTag_whitespace)
{
if (mPrettyPrint)
{
text = aNode.GetText();
Write(text);
mColPos += text.Length();
}
}
else if (mPrettyPrint && mPreformatted && type == eHTMLTag_newline)
{
nsString temp(NS_LINEBREAK);
Write(temp);
mColPos = 0;
}
return NS_OK;
}
//
// Write a string, wrapping appropriately to mWrapColumn.
//
void
nsHTMLToTXTSinkStream::WriteWrapped(const nsString& aString)
{
int totLen = aString.Length();
int charsLeft = totLen;
while (charsLeft > 0) // Loop over lines
{
// Indent at the beginning of the line, if necessary
if (mColPos == 0 && mIndent > 0)
{
char* spaces = new char[mIndent+1];
for (int i=0; i<mIndent; ++i)
spaces[i] = ' ';
spaces[mIndent] = '\0';
nsString temp(spaces);
Write (temp);
mColPos += mIndent;
delete[] spaces;
}
// Write whatever chunk of the string we can fit:
int bol = totLen - charsLeft;
int eol = bol + mWrapColumn - mColPos;
if (eol > totLen)
eol = totLen;
else
{
// We need to wrap, so search backward to find last IsSpace char:
int lastSpace = eol;
while (lastSpace > bol && !nsString::IsSpace(aString[lastSpace]))
--lastSpace;
if (lastSpace == bol)
{
// If we reached the bol, it might just be because we were close
// to the end already and should have wrapped last time.
// In that case, write a linebreak and come around again.
if (mColPos > mIndent)
{
nsAutoString linebreak(NS_LINEBREAK);
Write(linebreak);
mColPos = 0;
continue;
}
// Else apparently we really can't break this line at whitespace --
// so scan forward to the next space (if any) and dump a long line:
while (eol > totLen && !nsString::IsSpace(aString[lastSpace]))
++eol;
}
else if (lastSpace > bol && lastSpace < eol)
eol = lastSpace+1;
#ifdef DEBUG_akkana
else
printf("Wrapping: bol = %d, eol = %d, lastSpace = %d, totLen = %d\n",
bol, eol, lastSpace, totLen);
#endif
}
nsAutoString lineStr;
aString.Mid(lineStr, bol, eol-bol);
if (eol != totLen) // we're wrapping
{
lineStr.Append(NS_LINEBREAK);
mColPos = 0;
}
else
mColPos += lineStr.Length();
Write(lineStr);
charsLeft = totLen - eol;
}
}
/**
* This method gets called when the parser begins the process
* of building the content model via the content sink.
*
* @update gpk02/03/99
*/
NS_IMETHODIMP
nsHTMLToTXTSinkStream::WillBuildModel(void){
return NS_OK;
}
/**
* This method gets called when the parser concludes the process
* of building the content model via the content sink.
*
* @param aQualityLevel describes how well formed the doc was.
* 0=GOOD; 1=FAIR; 2=POOR;
* @update gpk02/03/99
*/
NS_IMETHODIMP
nsHTMLToTXTSinkStream::DidBuildModel(PRInt32 aQualityLevel) {
return NS_OK;
}
/**
* This method gets called when the parser gets i/o blocked,
* and wants to notify the sink that it may be a while before
* more data is available.
*
* @update gpk02/03/99
*/
NS_IMETHODIMP
nsHTMLToTXTSinkStream::WillInterrupt(void) {
return NS_OK;
}
/**
* This method gets called when the parser i/o gets unblocked,
* and we're about to start dumping content again to the sink.
*
* @update gpk02/03/99
*/
NS_IMETHODIMP
nsHTMLToTXTSinkStream::WillResume(void) {
return NS_OK;
}
NS_IMETHODIMP
nsHTMLToTXTSinkStream::SetParser(nsIParser* aParser) {
return NS_OK;
}
NS_IMETHODIMP
nsHTMLToTXTSinkStream::NotifyError(const nsParserError* aError)
{
return NS_OK;
}
PRBool IsInline(eHTMLTags aTag)
{
PRBool result = PR_FALSE;
switch (aTag)
{
case eHTMLTag_a:
case eHTMLTag_address:
case eHTMLTag_big:
case eHTMLTag_blink:
case eHTMLTag_b:
case eHTMLTag_br:
case eHTMLTag_cite:
case eHTMLTag_code:
case eHTMLTag_dfn:
case eHTMLTag_em:
case eHTMLTag_font:
case eHTMLTag_img:
case eHTMLTag_i:
case eHTMLTag_kbd:
case eHTMLTag_keygen:
case eHTMLTag_nobr:
case eHTMLTag_samp:
case eHTMLTag_small:
case eHTMLTag_spacer:
case eHTMLTag_span:
case eHTMLTag_strike:
case eHTMLTag_strong:
case eHTMLTag_sub:
case eHTMLTag_sup:
case eHTMLTag_td:
case eHTMLTag_textarea:
case eHTMLTag_tt:
case eHTMLTag_u:
case eHTMLTag_var:
case eHTMLTag_wbr:
result = PR_TRUE;
break;
default:
break;
}
return result;
}
PRBool IsBlockLevel(eHTMLTags aTag)
{
return !IsInline(aTag);
}
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