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minor improvement to backward propagation code

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git-svn-id: svn://10.0.0.236/trunk@933 18797224-902f-48f8-a5cc-f745e15eee43
This commit is contained in:
rickg
1998-04-30 22:06:16 +00:00
parent b515fc55dd
commit 1beed254e9
4 changed files with 62 additions and 44 deletions
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44
mozilla/parser/htmlparser/src/nsHTMLParser.cpp
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@@ -1315,25 +1315,33 @@ PRBool nsHTMLParser::CreateContextStackFor(PRInt32 aChildTag){
cnt=theVector.Length()-1;
result=PRBool(mContextStack[mContextStackPos-1]==theVector[cnt]);
}
else if(PR_TRUE==mDTD->BackwardPropagate(theVector,theTop,aChildTag)) {
if(theTop!=eHTMLTag_html)
mDTD->BackwardPropagate(theVector,eHTMLTag_html,theTop);
else {
PRBool tempResult;
if(eHTMLTag_unknown!=theTop) {
tempResult=mDTD->BackwardPropagate(theVector,theTop,aChildTag);
if(eHTMLTag_html!=theTop)
mDTD->BackwardPropagate(theVector,eHTMLTag_html,theTop);
}
else tempResult=mDTD->BackwardPropagate(theVector,eHTMLTag_html,aChildTag);
//propagation worked, so pop unwanted containers, push new ones, then exit...
pos=0;
cnt=theVector.Length();
result=PR_TRUE;
while(pos<mContextStackPos) {
if(mContextStack[pos]==theVector[cnt-1-pos]) {
pos++;
}
else {
//if you're here, you have something on the stack
//that doesn't match your needed tags order.
result=CloseContainersTo(pos);
break;
}
} //while
if(PR_TRUE==tempResult) {
//propagation worked, so pop unwanted containers, push new ones, then exit...
pos=0;
cnt=theVector.Length();
result=PR_TRUE;
while(pos<mContextStackPos) {
if(mContextStack[pos]==theVector[cnt-1-pos]) {
pos++;
}
else {
//if you're here, you have something on the stack
//that doesn't match your needed tags order.
result=CloseContainersTo(pos);
break;
}
} //while
} //elseif
} //elseif
//now, build up the stack according to the tags