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Bug 203391 InPlaceConvertLineEndings(class nsAString &)' defined but not used

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r=harishd sr=heikki


git-svn-id: svn://10.0.0.236/trunk@143122 18797224-902f-48f8-a5cc-f745e15eee43
This commit is contained in:
timeless%mozdev.org
2003-05-30 22:36:47 +00:00
parent c047406a4b
commit 8d5c2543d8
4 changed files with 152 additions and 154 deletions
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76
mozilla/parser/htmlparser/src/CNavDTD.cpp
View File

@@ -758,6 +758,82 @@ PRBool DoesRequireBody(CToken* aToken,nsITokenizer* aTokenizer) {
return result;
}
static void
InPlaceConvertLineEndings( nsAString& aString )
{
// go from '\r\n' or '\r' to '\n'
nsAString::iterator iter;
aString.BeginWriting(iter);
PRUnichar* S = iter.get();
size_t N = iter.size_forward();
// this fragment must be the entire string because
// (a) no multi-fragment string is writable, so only an illegal cast could give us one, and
// (b) else we would have to do more work (watching for |to| to fall off the end)
NS_ASSERTION(aString.Length() == N, "You cheated... multi-fragment strings are never writable!");
// we scan/convert in two phases (but only one pass over the string)
// until we have to skip a character, we only need to touch end-of-line chars
// after that, we'll have to start moving every character we want to keep
// use array indexing instead of pointers, because compilers optimize that better
// this first loop just converts line endings... no characters get moved
size_t i = 0;
PRBool just_saw_cr = PR_FALSE;
for ( ; i < N; ++i )
{
// if it's something we need to convert...
if ( S[i] == '\r' )
{
S[i] = '\n';
just_saw_cr = PR_TRUE;
}
else
{
// else, if it's something we need to skip...
// i.e., a '\n' immediately following a '\r',
// then we need to start moving any character we want to keep
// and we have a second loop for that, so get out of this one
if ( S[i] == '\n' && just_saw_cr )
break;
just_saw_cr = PR_FALSE;
}
}
// this second loop handles the rest of the buffer, moving characters down
// _and_ converting line-endings as it goes
// start the loop at |from = i| so that that |just_saw_cr| gets cleared automatically
size_t to = i;
for ( size_t from = i; from < N; ++from )
{
// if it's something we need to convert...
if ( S[from] == '\r' )
{
S[to++] = '\n';
just_saw_cr = PR_TRUE;
}
else
{
// else, if it's something we need to copy...
// i.e., NOT a '\n' immediately following a '\r'
if ( S[from] != '\n' || !just_saw_cr )
S[to++] = S[from];
just_saw_cr = PR_FALSE;
}
}
// if we chopped characters out of the string, we need to shorten it logically
if ( to < N )
aString.SetLength(to);
}
/**
* This big dispatch method is used to route token handler calls to the right place.
* What's wrong with it? This table, and the dispatch methods themselves need to be

77
mozilla/parser/htmlparser/src/nsDTDUtils.h
View File

@@ -654,81 +654,4 @@ inline PRBool HasOptionalEndTag(eHTMLTags aTag) {
eHTMLTag_userdefined,eHTMLTag_unknown};
return FindTagInSet(aTag,gHasOptionalEndTags,sizeof(gHasOptionalEndTags)/sizeof(eHTMLTag_body));
}
static void
InPlaceConvertLineEndings( nsAString& aString )
{
// go from '\r\n' or '\r' to '\n'
nsAString::iterator iter;
aString.BeginWriting(iter);
PRUnichar* S = iter.get();
size_t N = iter.size_forward();
// this fragment must be the entire string because
// (a) no multi-fragment string is writable, so only an illegal cast could give us one, and
// (b) else we would have to do more work (watching for |to| to fall off the end)
NS_ASSERTION(aString.Length() == N, "You cheated... multi-fragment strings are never writable!");
// we scan/convert in two phases (but only one pass over the string)
// until we have to skip a character, we only need to touch end-of-line chars
// after that, we'll have to start moving every character we want to keep
// use array indexing instead of pointers, because compilers optimize that better
// this first loop just converts line endings... no characters get moved
size_t i = 0;
PRBool just_saw_cr = PR_FALSE;
for ( ; i < N; ++i )
{
// if it's something we need to convert...
if ( S[i] == '\r' )
{
S[i] = '\n';
just_saw_cr = PR_TRUE;
}
else
{
// else, if it's something we need to skip...
// i.e., a '\n' immediately following a '\r',
// then we need to start moving any character we want to keep
// and we have a second loop for that, so get out of this one
if ( S[i] == '\n' && just_saw_cr )
break;
just_saw_cr = PR_FALSE;
}
}
// this second loop handles the rest of the buffer, moving characters down
// _and_ converting line-endings as it goes
// start the loop at |from = i| so that that |just_saw_cr| gets cleared automatically
size_t to = i;
for ( size_t from = i; from < N; ++from )
{
// if it's something we need to convert...
if ( S[from] == '\r' )
{
S[to++] = '\n';
just_saw_cr = PR_TRUE;
}
else
{
// else, if it's something we need to copy...
// i.e., NOT a '\n' immediately following a '\r'
if ( S[from] != '\n' || !just_saw_cr )
S[to++] = S[from];
just_saw_cr = PR_FALSE;
}
}
// if we chopped characters out of the string, we need to shorten it logically
if ( to < N )
aString.SetLength(to);
}
#endif