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Cleanup of ParseSelector() ; b=71100, r=peterl, sr=attinasi

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git-svn-id: svn://10.0.0.236/trunk@89008 18797224-902f-48f8-a5cc-f745e15eee43
This commit is contained in:
glazman%netscape.com
2001-03-08 23:27:39 +00:00
parent bada937712
commit a96dbca975
2 changed files with 786 additions and 554 deletions
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670
mozilla/content/html/style/src/nsCSSParser.cpp
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@@ -192,6 +192,19 @@ protected:
PRBool ParseFontFaceRule(PRInt32& aErrorCode);
PRBool ParsePageRule(PRInt32& aErrorCode);
void ParseIDSelector(PRInt32& aDataMask, nsCSSSelector& aSelector,
PRInt32& aParsingStatus, PRInt32& aErrorCode);
void ParseClassSelector(PRInt32& aDataMask, nsCSSSelector& aSelector,
PRInt32& aParsingStatus, PRInt32& aErrorCode);
void ParsePseudoSelector(PRInt32& aDataMask, nsCSSSelector& aSelector,
PRInt32& aParsingStatus, PRInt32& aErrorCode);
void ParseAttributeSelector(PRInt32& aDataMask, nsCSSSelector& aSelector,
PRInt32& aParsingStatus, PRInt32& aErrorCode);
void ParseTypeOrUniversalSelector(PRInt32& aDataMask,
nsCSSSelector& aSelector,
PRInt32& aParsingStatus, PRInt32& aErrorCode);
PRBool ParseSelectorList(PRInt32& aErrorCode, SelectorList*& aListHead);
PRBool ParseSelectorGroup(PRInt32& aErrorCode, SelectorList*& aListHead);
PRBool ParseSelector(PRInt32& aErrorCode, nsCSSSelector& aSelectorResult);
@@ -1502,31 +1515,69 @@ PRBool CSSParserImpl::ParseSelectorGroup(PRInt32& aErrorCode,
#define SEL_MASK_PCLASS 0x20
#define SEL_MASK_PELEM 0x40
/**
* This is the format for selectors:
* operator? [[namespace |]? element_name]? [ ID | class | attrib | pseudo ]*
*/
PRBool CSSParserImpl::ParseSelector(PRInt32& aErrorCode,
nsCSSSelector& aSelector)
{
PRInt32 dataMask = 0;
nsAutoString buffer;
#define SELECTOR_PARSING_ENDED_OK 1
#define SELECTOR_PARSING_STOPPED_OK 2
#define SELECTOR_PARSING_STOPPED_ERROR 3
if (! GetToken(aErrorCode, PR_TRUE)) {
REPORT_UNEXPECTED_EOF();
return PR_FALSE;
void CSSParserImpl::ParseIDSelector(PRInt32& aDataMask,
nsCSSSelector& aSelector,
PRInt32& aParsingStatus,
PRInt32& aErrorCode)
{
if (0 < mToken.mIdent.Length()) { // verify is legal ID
aDataMask |= SEL_MASK_ID;
aSelector.AddID(mToken.mIdent);
}
else {
REPORT_UNEXPECTED_TOKEN(NS_LITERAL_STRING(
"Expected non-empty name for ID selector, but found"));
UngetToken();
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
aParsingStatus = SELECTOR_PARSING_ENDED_OK;
}
void CSSParserImpl::ParseClassSelector(PRInt32& aDataMask,
nsCSSSelector& aSelector,
PRInt32& aParsingStatus,
PRInt32& aErrorCode)
{
if (! GetToken(aErrorCode, PR_FALSE)) { // get ident
REPORT_UNEXPECTED_EOF();
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
if (eCSSToken_Ident != mToken.mType) { // malformed selector
REPORT_UNEXPECTED_TOKEN(NS_LITERAL_STRING("Expected identifier for class selector but found"));
UngetToken();
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
aDataMask |= SEL_MASK_CLASS;
aSelector.AddClass(mToken.mIdent); // class always case sensitive
aParsingStatus = SELECTOR_PARSING_ENDED_OK;
}
void CSSParserImpl::ParseTypeOrUniversalSelector(PRInt32& aDataMask,
nsCSSSelector& aSelector,
PRInt32& aParsingStatus,
PRInt32& aErrorCode)
{
nsAutoString buffer;
if (mToken.IsSymbol('*')) { // universal element selector, or universal namespace
if (ExpectSymbol(aErrorCode, '|', PR_FALSE)) { // was namespace
dataMask |= SEL_MASK_NSPACE;
aDataMask |= SEL_MASK_NSPACE;
aSelector.SetNameSpace(kNameSpaceID_Unknown); // namespace wildcard
if (! GetToken(aErrorCode, PR_FALSE)) {
REPORT_UNEXPECTED_EOF();
return PR_FALSE;
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
if (eCSSToken_Ident == mToken.mType) { // element name
dataMask |= SEL_MASK_ELEM;
aDataMask |= SEL_MASK_ELEM;
if (mCaseSensitive) {
aSelector.SetTag(mToken.mIdent);
}
@@ -1536,14 +1587,15 @@ PRBool CSSParserImpl::ParseSelector(PRInt32& aErrorCode,
}
}
else if (mToken.IsSymbol('*')) { // universal selector
dataMask |= SEL_MASK_ELEM;
aDataMask |= SEL_MASK_ELEM;
// don't set tag
}
else {
REPORT_UNEXPECTED_TOKEN(
NS_LITERAL_STRING("Expected element name or '*' but found"));
UngetToken();
return PR_FALSE;
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
}
else { // was universal element selector
@@ -1558,18 +1610,19 @@ PRBool CSSParserImpl::ParseSelector(PRInt32& aErrorCode,
NS_RELEASE(defaultNameSpace);
}
}
dataMask |= SEL_MASK_ELEM;
aDataMask |= SEL_MASK_ELEM;
// don't set any tag in the selector
}
if (! GetToken(aErrorCode, PR_FALSE)) { // premature eof is ok (here!)
return PR_TRUE;
aParsingStatus = SELECTOR_PARSING_STOPPED_OK;
return;
}
}
else if (eCSSToken_Ident == mToken.mType) { // element name or namespace name
buffer = mToken.mIdent; // hang on to ident
if (ExpectSymbol(aErrorCode, '|', PR_FALSE)) { // was namespace
dataMask |= SEL_MASK_NSPACE;
aDataMask |= SEL_MASK_NSPACE;
PRInt32 nameSpaceID = kNameSpaceID_Unknown;
if (mNameSpace) {
nsIAtom* prefix;
@@ -1579,18 +1632,19 @@ PRBool CSSParserImpl::ParseSelector(PRInt32& aErrorCode,
NS_IF_RELEASE(prefix);
} // else, no delcared namespaces
if (kNameSpaceID_Unknown == nameSpaceID) { // unknown prefix, dump it
REPORT_UNEXPECTED_TOKEN(
NS_LITERAL_STRING("Unknown namespace prefix"));
return PR_FALSE;
REPORT_UNEXPECTED_TOKEN(NS_LITERAL_STRING("Unknown namespace prefix"));
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
aSelector.SetNameSpace(nameSpaceID);
if (! GetToken(aErrorCode, PR_FALSE)) {
REPORT_UNEXPECTED_EOF();
return PR_FALSE;
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
if (eCSSToken_Ident == mToken.mType) { // element name
dataMask |= SEL_MASK_ELEM;
aDataMask |= SEL_MASK_ELEM;
if (mCaseSensitive) {
aSelector.SetTag(mToken.mIdent);
}
@@ -1600,14 +1654,15 @@ PRBool CSSParserImpl::ParseSelector(PRInt32& aErrorCode,
}
}
else if (mToken.IsSymbol('*')) { // universal selector
dataMask |= SEL_MASK_ELEM;
aDataMask |= SEL_MASK_ELEM;
// don't set tag
}
else {
REPORT_UNEXPECTED_TOKEN(
NS_LITERAL_STRING("Expected element name or '*' but found"));
NS_LITERAL_STRING("Expected element name or '*' but found"));
UngetToken();
return PR_FALSE;
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
}
else { // was element name
@@ -1629,23 +1684,25 @@ PRBool CSSParserImpl::ParseSelector(PRInt32& aErrorCode,
buffer.ToLowerCase();
aSelector.SetTag(buffer);
}
dataMask |= SEL_MASK_ELEM;
aDataMask |= SEL_MASK_ELEM;
}
if (! GetToken(aErrorCode, PR_FALSE)) { // premature eof is ok (here!)
return PR_TRUE;
aParsingStatus = SELECTOR_PARSING_STOPPED_OK;
return;
}
}
else if (mToken.IsSymbol('|')) { // No namespace
dataMask |= SEL_MASK_NSPACE;
aDataMask |= SEL_MASK_NSPACE;
aSelector.SetNameSpace(kNameSpaceID_None); // explicit NO namespace
// get mandatory tag
if (! GetToken(aErrorCode, PR_FALSE)) {
REPORT_UNEXPECTED_EOF();
return PR_FALSE;
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
if (eCSSToken_Ident == mToken.mType) { // element name
dataMask |= SEL_MASK_ELEM;
aDataMask |= SEL_MASK_ELEM;
if (mCaseSensitive) {
aSelector.SetTag(mToken.mIdent);
}
@@ -1655,274 +1712,333 @@ PRBool CSSParserImpl::ParseSelector(PRInt32& aErrorCode,
}
}
else if (mToken.IsSymbol('*')) { // universal selector
dataMask |= SEL_MASK_ELEM;
aDataMask |= SEL_MASK_ELEM;
// don't set tag
}
else {
REPORT_UNEXPECTED_TOKEN(
NS_LITERAL_STRING("Expected element name or '*' but found"));
UngetToken();
return PR_FALSE;
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
if (! GetToken(aErrorCode, PR_FALSE)) { // premature eof is ok (here!)
return PR_TRUE;
aParsingStatus = SELECTOR_PARSING_STOPPED_OK;
return;
}
}
for (;;) {
if (eCSSToken_ID == mToken.mType) { // #id
if (0 < mToken.mIdent.Length()) { // verify is legal ID
dataMask |= SEL_MASK_ID;
aSelector.AddID(mToken.mIdent);
aParsingStatus = SELECTOR_PARSING_ENDED_OK;
}
void CSSParserImpl::ParseAttributeSelector(PRInt32& aDataMask,
nsCSSSelector& aSelector,
PRInt32& aParsingStatus,
PRInt32& aErrorCode)
{
if (! GetToken(aErrorCode, PR_TRUE)) { // premature EOF
REPORT_UNEXPECTED_EOF();
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
PRInt32 nameSpaceID = kNameSpaceID_None;
nsAutoString attr;
if (mToken.IsSymbol('*')) { // wildcard namespace
nameSpaceID = kNameSpaceID_Unknown;
if (ExpectSymbol(aErrorCode, '|', PR_FALSE)) {
if (! GetToken(aErrorCode, PR_FALSE)) { // premature EOF
REPORT_UNEXPECTED_EOF();
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
if (eCSSToken_Ident == mToken.mType) { // attr name
attr = mToken.mIdent;
}
else {
REPORT_UNEXPECTED_TOKEN(NS_LITERAL_STRING(
"Expected non-empty name for ID selector, but found"));
REPORT_UNEXPECTED_TOKEN(NS_LITERAL_STRING("Expected identifier for attribute name but found"));
UngetToken();
return PR_FALSE;
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
}
else {
REPORT_UNEXPECTED_TOKEN(
NS_LITERAL_STRING("Expected '|' but found"));
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
}
else if (mToken.IsSymbol('|')) { // NO namespace
if (! GetToken(aErrorCode, PR_FALSE)) { // premature EOF
REPORT_UNEXPECTED_EOF();
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
if (eCSSToken_Ident == mToken.mType) { // attr name
attr = mToken.mIdent;
}
else {
REPORT_UNEXPECTED_TOKEN(NS_LITERAL_STRING("Expected identifier for attribute name but found"));
UngetToken();
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
}
else if (eCSSToken_Ident == mToken.mType) { // attr name or namespace
attr = mToken.mIdent; // hang on to it
if (ExpectSymbol(aErrorCode, '|', PR_FALSE)) { // was a namespace
nameSpaceID = kNameSpaceID_Unknown;
if (mNameSpace) {
nsIAtom* prefix;
attr.ToLowerCase(); // always case insensitive, since stays within CSS
prefix = NS_NewAtom(attr);
mNameSpace->FindNameSpaceID(prefix, nameSpaceID);
NS_IF_RELEASE(prefix);
} // else, no delcared namespaces
if (kNameSpaceID_Unknown == nameSpaceID) { // unknown prefix, dump it
REPORT_UNEXPECTED_TOKEN(
NS_LITERAL_STRING("Unknown namespace prefix"));
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
if (! GetToken(aErrorCode, PR_FALSE)) { // premature EOF
REPORT_UNEXPECTED_EOF();
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
if (eCSSToken_Ident == mToken.mType) { // attr name
attr = mToken.mIdent;
}
else {
REPORT_UNEXPECTED_TOKEN(NS_LITERAL_STRING("Expected identifier for attribute name but found"));
UngetToken();
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
}
}
else { // malformed
REPORT_UNEXPECTED_TOKEN(
NS_LITERAL_STRING("Expected attribute name or namespace but found"));
UngetToken();
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
if (! mCaseSensitive) {
attr.ToLowerCase();
}
if (! GetToken(aErrorCode, PR_TRUE)) { // premature EOF
REPORT_UNEXPECTED_EOF();
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
if ((eCSSToken_Symbol == mToken.mType) ||
(eCSSToken_Includes == mToken.mType) ||
(eCSSToken_Dashmatch == mToken.mType) ||
(eCSSToken_Beginsmatch == mToken.mType) ||
(eCSSToken_Endsmatch == mToken.mType) ||
(eCSSToken_Containsmatch == mToken.mType)) {
PRUint8 func;
if (eCSSToken_Includes == mToken.mType) {
func = NS_ATTR_FUNC_INCLUDES;
}
else if (eCSSToken_Dashmatch == mToken.mType) {
func = NS_ATTR_FUNC_DASHMATCH;
}
else if (eCSSToken_Beginsmatch == mToken.mType) {
func = NS_ATTR_FUNC_BEGINSMATCH;
}
else if (eCSSToken_Endsmatch == mToken.mType) {
func = NS_ATTR_FUNC_ENDSMATCH;
}
else if (eCSSToken_Containsmatch == mToken.mType) {
func = NS_ATTR_FUNC_CONTAINSMATCH;
}
else if (']' == mToken.mSymbol) {
aDataMask |= SEL_MASK_ATTRIB;
aSelector.AddAttribute(nameSpaceID, attr);
func = NS_ATTR_FUNC_SET;
}
else if ('=' == mToken.mSymbol) {
func = NS_ATTR_FUNC_EQUALS;
}
else {
REPORT_UNEXPECTED_TOKEN(
NS_LITERAL_STRING("Unexpected token in attribute selector: "));
UngetToken(); // bad function
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
if (NS_ATTR_FUNC_SET != func) { // get value
if (! GetToken(aErrorCode, PR_TRUE)) { // premature EOF
REPORT_UNEXPECTED_EOF();
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
if ((eCSSToken_Ident == mToken.mType) || (eCSSToken_String == mToken.mType)) {
nsAutoString value(mToken.mIdent);
if (! GetToken(aErrorCode, PR_TRUE)) { // premature EOF
REPORT_UNEXPECTED_EOF();
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
if (mToken.IsSymbol(']')) {
aDataMask |= SEL_MASK_ATTRIB;
aSelector.AddAttribute(nameSpaceID, attr, func, value, mCaseSensitive);
}
else {
REPORT_UNEXPECTED_TOKEN(NS_LITERAL_STRING("Expected ']' to terminate attribute selector but found"));
UngetToken();
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
}
else {
REPORT_UNEXPECTED_TOKEN(NS_LITERAL_STRING("Expected identifier or string for value in attribute selector but found"));
UngetToken();
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
}
}
else {
REPORT_UNEXPECTED_TOKEN(
NS_LITERAL_STRING("Unexpected token in attribute selector: "));
UngetToken(); // bad dog, no biscut!
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
aParsingStatus = SELECTOR_PARSING_ENDED_OK;
}
void CSSParserImpl::ParsePseudoSelector(PRInt32& aDataMask,
nsCSSSelector& aSelector,
PRInt32& aParsingStatus,
PRInt32& aErrorCode)
{
nsAutoString buffer;
if (! GetToken(aErrorCode, PR_FALSE)) { // premature eof
REPORT_UNEXPECTED_EOF();
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
if (eCSSToken_Ident != mToken.mType) { // malformed selector
#ifdef INCLUDE_XUL
if (eCSSToken_Function != mToken.mType ||
!IsOutlinerPseudoElement(mToken.mIdent)) {
#endif
REPORT_UNEXPECTED_TOKEN(NS_LITERAL_STRING("Expected identifier for pseudo-class selector but found"));
UngetToken();
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
#ifdef INCLUDE_XUL
}
#endif
}
buffer.Truncate();
buffer.AppendWithConversion(':');
buffer.Append(mToken.mIdent);
buffer.ToLowerCase();
nsIAtom* pseudo = NS_NewAtom(buffer);
if (IsPseudoClass(pseudo)) {
// XXX parse lang pseudo class
aDataMask |= SEL_MASK_PCLASS;
aSelector.AddPseudoClass(pseudo);
NS_RELEASE(pseudo);
}
else {
if (0 == (aDataMask & SEL_MASK_PELEM)) {
aDataMask |= SEL_MASK_PELEM;
aSelector.AddPseudoClass(pseudo); // store it here, it gets pulled later
NS_RELEASE(pseudo);
#ifdef INCLUDE_XUL
if (eCSSToken_Function == mToken.mType &&
IsOutlinerPseudoElement(mToken.mIdent)) {
// We have encountered a pseudoelement of the form
// -moz-outliner-xxxx(a,b,c). We parse (a,b,c) and add each
// item in the list to the pseudoclass list. They will be pulled
// from the list later along with the pseudoelement.
if (!ParseOutlinerPseudoElement(aErrorCode, aSelector))
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
#endif
// ensure selector ends here, must be followed by EOF, space, '{' or ','
if (GetToken(aErrorCode, PR_FALSE)) { // premature eof is ok (here!)
if ((eCSSToken_WhiteSpace == mToken.mType) ||
(mToken.IsSymbol('{') || mToken.IsSymbol(','))) {
UngetToken();
aParsingStatus = SELECTOR_PARSING_STOPPED_OK;
return;
}
REPORT_UNEXPECTED_TOKEN(NS_LITERAL_STRING("Found trailing token after pseudo-element, which must be the last part of a selector: "));
UngetToken();
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
}
else { // multiple pseudo elements, not legal
REPORT_UNEXPECTED_TOKEN(NS_LITERAL_STRING("Extra pseudo-element"));
UngetToken();
NS_RELEASE(pseudo);
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
}
aParsingStatus = SELECTOR_PARSING_ENDED_OK;
}
/**
* This is the format for selectors:
* operator? [[namespace |]? element_name]? [ ID | class | attrib | pseudo ]*
*/
PRBool CSSParserImpl::ParseSelector(PRInt32& aErrorCode,
nsCSSSelector& aSelector)
{
PRInt32 dataMask = 0;
PRInt32 parsingStatus = SELECTOR_PARSING_ENDED_OK;
if (! GetToken(aErrorCode, PR_TRUE)) {
REPORT_UNEXPECTED_EOF();
return PR_FALSE;
}
ParseTypeOrUniversalSelector(dataMask, aSelector, parsingStatus, aErrorCode);
if (SELECTOR_PARSING_STOPPED_OK == parsingStatus) {
return PR_TRUE;
}
else if (SELECTOR_PARSING_STOPPED_ERROR == parsingStatus) {
return PR_FALSE;
}
for (;;) {
parsingStatus = SELECTOR_PARSING_ENDED_OK;
if (eCSSToken_ID == mToken.mType) { // #id
ParseIDSelector(dataMask, aSelector, parsingStatus, aErrorCode);
}
else if (mToken.IsSymbol('.')) { // .class
if (! GetToken(aErrorCode, PR_FALSE)) { // get ident
REPORT_UNEXPECTED_EOF();
return PR_FALSE;
}
if (eCSSToken_Ident != mToken.mType) { // malformed selector
REPORT_UNEXPECTED_TOKEN(NS_LITERAL_STRING("Expected identifier for class selector but found"));
UngetToken();
return PR_FALSE;
}
dataMask |= SEL_MASK_CLASS;
aSelector.AddClass(mToken.mIdent); // class always case sensitive
ParseClassSelector(dataMask, aSelector, parsingStatus, aErrorCode);
}
else if (mToken.IsSymbol(':')) { // :pseudo
if (! GetToken(aErrorCode, PR_FALSE)) { // premature eof
REPORT_UNEXPECTED_EOF();
return PR_FALSE;
}
if (eCSSToken_Ident != mToken.mType) { // malformed selector
#ifdef INCLUDE_XUL
if (eCSSToken_Function != mToken.mType ||
!IsOutlinerPseudoElement(mToken.mIdent)) {
#endif
REPORT_UNEXPECTED_TOKEN(NS_LITERAL_STRING("Expected identifier for pseudo-class selector but found"));
UngetToken();
return PR_FALSE;
#ifdef INCLUDE_XUL
}
#endif
}
buffer.Truncate();
buffer.AppendWithConversion(':');
buffer.Append(mToken.mIdent);
buffer.ToLowerCase();
nsIAtom* pseudo = NS_NewAtom(buffer);
if (IsPseudoClass(pseudo)) {
// XXX parse lang pseudo class
dataMask |= SEL_MASK_PCLASS;
aSelector.AddPseudoClass(pseudo);
NS_RELEASE(pseudo);
}
else {
if (0 == (dataMask & SEL_MASK_PELEM)) {
dataMask |= SEL_MASK_PELEM;
aSelector.AddPseudoClass(pseudo); // store it here, it gets pulled later
NS_RELEASE(pseudo);
#ifdef INCLUDE_XUL
if (eCSSToken_Function == mToken.mType &&
IsOutlinerPseudoElement(mToken.mIdent)) {
// We have encountered a pseudoelement of the form
// -moz-outliner-xxxx(a,b,c). We parse (a,b,c) and add each
// item in the list to the pseudoclass list. They will be pulled
// from the list later along with the pseudoelement.
if (!ParseOutlinerPseudoElement(aErrorCode, aSelector))
return PR_FALSE;
}
#endif
// ensure selector ends here, must be followed by EOF, space, '{' or ','
if (GetToken(aErrorCode, PR_FALSE)) { // premature eof is ok (here!)
if ((eCSSToken_WhiteSpace == mToken.mType) ||
(mToken.IsSymbol('{') || mToken.IsSymbol(','))) {
UngetToken();
return PR_TRUE;
}
REPORT_UNEXPECTED_TOKEN(NS_LITERAL_STRING("Found trailing token after pseudo-element, which must be the last part of a selector: "));
UngetToken();
return PR_FALSE;
}
}
else { // multiple pseudo elements, not legal
REPORT_UNEXPECTED_TOKEN(NS_LITERAL_STRING("Extra pseudo-element"));
UngetToken();
NS_RELEASE(pseudo);
return PR_FALSE;
}
}
ParsePseudoSelector(dataMask, aSelector, parsingStatus, aErrorCode);
}
else if (mToken.IsSymbol('[')) { // attribute
if (! GetToken(aErrorCode, PR_TRUE)) { // premature EOF
REPORT_UNEXPECTED_EOF();
return PR_FALSE;
}
PRInt32 nameSpaceID = kNameSpaceID_None;
nsAutoString attr;
if (mToken.IsSymbol('*')) { // wildcard namespace
nameSpaceID = kNameSpaceID_Unknown;
if (ExpectSymbol(aErrorCode, '|', PR_FALSE)) {
if (! GetToken(aErrorCode, PR_FALSE)) { // premature EOF
REPORT_UNEXPECTED_EOF();
return PR_FALSE;
}
if (eCSSToken_Ident == mToken.mType) { // attr name
attr = mToken.mIdent;
}
else {
REPORT_UNEXPECTED_TOKEN(NS_LITERAL_STRING("Expected identifier for attribute name but found"));
UngetToken();
return PR_FALSE;
}
}
else {
REPORT_UNEXPECTED_TOKEN(
NS_LITERAL_STRING("Expected '|' but found"));
return PR_FALSE;
}
}
else if (mToken.IsSymbol('|')) { // NO namespace
if (! GetToken(aErrorCode, PR_FALSE)) { // premature EOF
REPORT_UNEXPECTED_EOF();
return PR_FALSE;
}
if (eCSSToken_Ident == mToken.mType) { // attr name
attr = mToken.mIdent;
}
else {
REPORT_UNEXPECTED_TOKEN(NS_LITERAL_STRING("Expected identifier for attribute name but found"));
UngetToken();
return PR_FALSE;
}
}
else if (eCSSToken_Ident == mToken.mType) { // attr name or namespace
attr = mToken.mIdent; // hang on to it
if (ExpectSymbol(aErrorCode, '|', PR_FALSE)) { // was a namespace
nameSpaceID = kNameSpaceID_Unknown;
if (mNameSpace) {
nsIAtom* prefix;
attr.ToLowerCase(); // always case insensitive, since stays within CSS
prefix = NS_NewAtom(attr);
mNameSpace->FindNameSpaceID(prefix, nameSpaceID);
NS_IF_RELEASE(prefix);
} // else, no delcared namespaces
if (kNameSpaceID_Unknown == nameSpaceID) { // unknown prefix, dump it
REPORT_UNEXPECTED_TOKEN(
NS_LITERAL_STRING("Unknown namespace prefix"));
return PR_FALSE;
}
if (! GetToken(aErrorCode, PR_FALSE)) { // premature EOF
REPORT_UNEXPECTED_EOF();
return PR_FALSE;
}
if (eCSSToken_Ident == mToken.mType) { // attr name
attr = mToken.mIdent;
}
else {
REPORT_UNEXPECTED_TOKEN(NS_LITERAL_STRING("Expected identifier for attribute name but found"));
UngetToken();
return PR_FALSE;
}
}
}
else { // malformed
REPORT_UNEXPECTED_TOKEN(
NS_LITERAL_STRING("Expected attribute name or namespace but found"));
UngetToken();
return PR_FALSE;
}
if (! mCaseSensitive) {
attr.ToLowerCase();
}
if (! GetToken(aErrorCode, PR_TRUE)) { // premature EOF
REPORT_UNEXPECTED_EOF();
return PR_FALSE;
}
if ((eCSSToken_Symbol == mToken.mType) ||
(eCSSToken_Includes == mToken.mType) ||
(eCSSToken_Dashmatch == mToken.mType) ||
(eCSSToken_Beginsmatch == mToken.mType) ||
(eCSSToken_Endsmatch == mToken.mType) ||
(eCSSToken_Containsmatch == mToken.mType)) {
PRUint8 func;
if (eCSSToken_Includes == mToken.mType) {
func = NS_ATTR_FUNC_INCLUDES;
}
else if (eCSSToken_Dashmatch == mToken.mType) {
func = NS_ATTR_FUNC_DASHMATCH;
}
else if (eCSSToken_Beginsmatch == mToken.mType) {
func = NS_ATTR_FUNC_BEGINSMATCH;
}
else if (eCSSToken_Endsmatch == mToken.mType) {
func = NS_ATTR_FUNC_ENDSMATCH;
}
else if (eCSSToken_Containsmatch == mToken.mType) {
func = NS_ATTR_FUNC_CONTAINSMATCH;
}
else if (']' == mToken.mSymbol) {
dataMask |= SEL_MASK_ATTRIB;
aSelector.AddAttribute(nameSpaceID, attr);
func = NS_ATTR_FUNC_SET;
}
else if ('=' == mToken.mSymbol) {
func = NS_ATTR_FUNC_EQUALS;
}
else {
REPORT_UNEXPECTED_TOKEN(
NS_LITERAL_STRING("Unexpected token in attribute selector: "));
UngetToken(); // bad function
return PR_FALSE;
}
if (NS_ATTR_FUNC_SET != func) { // get value
if (! GetToken(aErrorCode, PR_TRUE)) { // premature EOF
REPORT_UNEXPECTED_EOF();
return PR_FALSE;
}
if ((eCSSToken_Ident == mToken.mType) || (eCSSToken_String == mToken.mType)) {
nsAutoString value(mToken.mIdent);
if (! GetToken(aErrorCode, PR_TRUE)) { // premature EOF
REPORT_UNEXPECTED_EOF();
return PR_FALSE;
}
if (mToken.IsSymbol(']')) {
dataMask |= SEL_MASK_ATTRIB;
aSelector.AddAttribute(nameSpaceID, attr, func, value, mCaseSensitive);
}
else {
REPORT_UNEXPECTED_TOKEN(NS_LITERAL_STRING("Expected ']' to terminate attribute selector but found"));
UngetToken();
return PR_FALSE;
}
}
else {
REPORT_UNEXPECTED_TOKEN(NS_LITERAL_STRING("Expected identifier or string for value in attribute selector but found"));
UngetToken();
return PR_FALSE;
}
}
}
else {
REPORT_UNEXPECTED_TOKEN(
NS_LITERAL_STRING("Unexpected token in attribute selector: "));
UngetToken(); // bad dog, no biscut!
return PR_FALSE;
}
ParseAttributeSelector(dataMask, aSelector, parsingStatus, aErrorCode);
}
else { // not a selector token, we're done
break;
}
if (SELECTOR_PARSING_STOPPED_OK == parsingStatus) {
return PR_TRUE;
}
else if (SELECTOR_PARSING_STOPPED_ERROR == parsingStatus) {
return PR_FALSE;
}
if (! GetToken(aErrorCode, PR_FALSE)) { // premature eof is ok (here!)
return PR_TRUE;
}

670
mozilla/layout/style/nsCSSParser.cpp
View File

@@ -192,6 +192,19 @@ protected:
PRBool ParseFontFaceRule(PRInt32& aErrorCode);
PRBool ParsePageRule(PRInt32& aErrorCode);
void ParseIDSelector(PRInt32& aDataMask, nsCSSSelector& aSelector,
PRInt32& aParsingStatus, PRInt32& aErrorCode);
void ParseClassSelector(PRInt32& aDataMask, nsCSSSelector& aSelector,
PRInt32& aParsingStatus, PRInt32& aErrorCode);
void ParsePseudoSelector(PRInt32& aDataMask, nsCSSSelector& aSelector,
PRInt32& aParsingStatus, PRInt32& aErrorCode);
void ParseAttributeSelector(PRInt32& aDataMask, nsCSSSelector& aSelector,
PRInt32& aParsingStatus, PRInt32& aErrorCode);
void ParseTypeOrUniversalSelector(PRInt32& aDataMask,
nsCSSSelector& aSelector,
PRInt32& aParsingStatus, PRInt32& aErrorCode);
PRBool ParseSelectorList(PRInt32& aErrorCode, SelectorList*& aListHead);
PRBool ParseSelectorGroup(PRInt32& aErrorCode, SelectorList*& aListHead);
PRBool ParseSelector(PRInt32& aErrorCode, nsCSSSelector& aSelectorResult);
@@ -1502,31 +1515,69 @@ PRBool CSSParserImpl::ParseSelectorGroup(PRInt32& aErrorCode,
#define SEL_MASK_PCLASS 0x20
#define SEL_MASK_PELEM 0x40
/**
* This is the format for selectors:
* operator? [[namespace |]? element_name]? [ ID | class | attrib | pseudo ]*
*/
PRBool CSSParserImpl::ParseSelector(PRInt32& aErrorCode,
nsCSSSelector& aSelector)
{
PRInt32 dataMask = 0;
nsAutoString buffer;
#define SELECTOR_PARSING_ENDED_OK 1
#define SELECTOR_PARSING_STOPPED_OK 2
#define SELECTOR_PARSING_STOPPED_ERROR 3
if (! GetToken(aErrorCode, PR_TRUE)) {
REPORT_UNEXPECTED_EOF();
return PR_FALSE;
void CSSParserImpl::ParseIDSelector(PRInt32& aDataMask,
nsCSSSelector& aSelector,
PRInt32& aParsingStatus,
PRInt32& aErrorCode)
{
if (0 < mToken.mIdent.Length()) { // verify is legal ID
aDataMask |= SEL_MASK_ID;
aSelector.AddID(mToken.mIdent);
}
else {
REPORT_UNEXPECTED_TOKEN(NS_LITERAL_STRING(
"Expected non-empty name for ID selector, but found"));
UngetToken();
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
aParsingStatus = SELECTOR_PARSING_ENDED_OK;
}
void CSSParserImpl::ParseClassSelector(PRInt32& aDataMask,
nsCSSSelector& aSelector,
PRInt32& aParsingStatus,
PRInt32& aErrorCode)
{
if (! GetToken(aErrorCode, PR_FALSE)) { // get ident
REPORT_UNEXPECTED_EOF();
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
if (eCSSToken_Ident != mToken.mType) { // malformed selector
REPORT_UNEXPECTED_TOKEN(NS_LITERAL_STRING("Expected identifier for class selector but found"));
UngetToken();
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
aDataMask |= SEL_MASK_CLASS;
aSelector.AddClass(mToken.mIdent); // class always case sensitive
aParsingStatus = SELECTOR_PARSING_ENDED_OK;
}
void CSSParserImpl::ParseTypeOrUniversalSelector(PRInt32& aDataMask,
nsCSSSelector& aSelector,
PRInt32& aParsingStatus,
PRInt32& aErrorCode)
{
nsAutoString buffer;
if (mToken.IsSymbol('*')) { // universal element selector, or universal namespace
if (ExpectSymbol(aErrorCode, '|', PR_FALSE)) { // was namespace
dataMask |= SEL_MASK_NSPACE;
aDataMask |= SEL_MASK_NSPACE;
aSelector.SetNameSpace(kNameSpaceID_Unknown); // namespace wildcard
if (! GetToken(aErrorCode, PR_FALSE)) {
REPORT_UNEXPECTED_EOF();
return PR_FALSE;
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
if (eCSSToken_Ident == mToken.mType) { // element name
dataMask |= SEL_MASK_ELEM;
aDataMask |= SEL_MASK_ELEM;
if (mCaseSensitive) {
aSelector.SetTag(mToken.mIdent);
}
@@ -1536,14 +1587,15 @@ PRBool CSSParserImpl::ParseSelector(PRInt32& aErrorCode,
}
}
else if (mToken.IsSymbol('*')) { // universal selector
dataMask |= SEL_MASK_ELEM;
aDataMask |= SEL_MASK_ELEM;
// don't set tag
}
else {
REPORT_UNEXPECTED_TOKEN(
NS_LITERAL_STRING("Expected element name or '*' but found"));
UngetToken();
return PR_FALSE;
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
}
else { // was universal element selector
@@ -1558,18 +1610,19 @@ PRBool CSSParserImpl::ParseSelector(PRInt32& aErrorCode,
NS_RELEASE(defaultNameSpace);
}
}
dataMask |= SEL_MASK_ELEM;
aDataMask |= SEL_MASK_ELEM;
// don't set any tag in the selector
}
if (! GetToken(aErrorCode, PR_FALSE)) { // premature eof is ok (here!)
return PR_TRUE;
aParsingStatus = SELECTOR_PARSING_STOPPED_OK;
return;
}
}
else if (eCSSToken_Ident == mToken.mType) { // element name or namespace name
buffer = mToken.mIdent; // hang on to ident
if (ExpectSymbol(aErrorCode, '|', PR_FALSE)) { // was namespace
dataMask |= SEL_MASK_NSPACE;
aDataMask |= SEL_MASK_NSPACE;
PRInt32 nameSpaceID = kNameSpaceID_Unknown;
if (mNameSpace) {
nsIAtom* prefix;
@@ -1579,18 +1632,19 @@ PRBool CSSParserImpl::ParseSelector(PRInt32& aErrorCode,
NS_IF_RELEASE(prefix);
} // else, no delcared namespaces
if (kNameSpaceID_Unknown == nameSpaceID) { // unknown prefix, dump it
REPORT_UNEXPECTED_TOKEN(
NS_LITERAL_STRING("Unknown namespace prefix"));
return PR_FALSE;
REPORT_UNEXPECTED_TOKEN(NS_LITERAL_STRING("Unknown namespace prefix"));
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
aSelector.SetNameSpace(nameSpaceID);
if (! GetToken(aErrorCode, PR_FALSE)) {
REPORT_UNEXPECTED_EOF();
return PR_FALSE;
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
if (eCSSToken_Ident == mToken.mType) { // element name
dataMask |= SEL_MASK_ELEM;
aDataMask |= SEL_MASK_ELEM;
if (mCaseSensitive) {
aSelector.SetTag(mToken.mIdent);
}
@@ -1600,14 +1654,15 @@ PRBool CSSParserImpl::ParseSelector(PRInt32& aErrorCode,
}
}
else if (mToken.IsSymbol('*')) { // universal selector
dataMask |= SEL_MASK_ELEM;
aDataMask |= SEL_MASK_ELEM;
// don't set tag
}
else {
REPORT_UNEXPECTED_TOKEN(
NS_LITERAL_STRING("Expected element name or '*' but found"));
NS_LITERAL_STRING("Expected element name or '*' but found"));
UngetToken();
return PR_FALSE;
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
}
else { // was element name
@@ -1629,23 +1684,25 @@ PRBool CSSParserImpl::ParseSelector(PRInt32& aErrorCode,
buffer.ToLowerCase();
aSelector.SetTag(buffer);
}
dataMask |= SEL_MASK_ELEM;
aDataMask |= SEL_MASK_ELEM;
}
if (! GetToken(aErrorCode, PR_FALSE)) { // premature eof is ok (here!)
return PR_TRUE;
aParsingStatus = SELECTOR_PARSING_STOPPED_OK;
return;
}
}
else if (mToken.IsSymbol('|')) { // No namespace
dataMask |= SEL_MASK_NSPACE;
aDataMask |= SEL_MASK_NSPACE;
aSelector.SetNameSpace(kNameSpaceID_None); // explicit NO namespace
// get mandatory tag
if (! GetToken(aErrorCode, PR_FALSE)) {
REPORT_UNEXPECTED_EOF();
return PR_FALSE;
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
if (eCSSToken_Ident == mToken.mType) { // element name
dataMask |= SEL_MASK_ELEM;
aDataMask |= SEL_MASK_ELEM;
if (mCaseSensitive) {
aSelector.SetTag(mToken.mIdent);
}
@@ -1655,274 +1712,333 @@ PRBool CSSParserImpl::ParseSelector(PRInt32& aErrorCode,
}
}
else if (mToken.IsSymbol('*')) { // universal selector
dataMask |= SEL_MASK_ELEM;
aDataMask |= SEL_MASK_ELEM;
// don't set tag
}
else {
REPORT_UNEXPECTED_TOKEN(
NS_LITERAL_STRING("Expected element name or '*' but found"));
UngetToken();
return PR_FALSE;
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
if (! GetToken(aErrorCode, PR_FALSE)) { // premature eof is ok (here!)
return PR_TRUE;
aParsingStatus = SELECTOR_PARSING_STOPPED_OK;
return;
}
}
for (;;) {
if (eCSSToken_ID == mToken.mType) { // #id
if (0 < mToken.mIdent.Length()) { // verify is legal ID
dataMask |= SEL_MASK_ID;
aSelector.AddID(mToken.mIdent);
aParsingStatus = SELECTOR_PARSING_ENDED_OK;
}
void CSSParserImpl::ParseAttributeSelector(PRInt32& aDataMask,
nsCSSSelector& aSelector,
PRInt32& aParsingStatus,
PRInt32& aErrorCode)
{
if (! GetToken(aErrorCode, PR_TRUE)) { // premature EOF
REPORT_UNEXPECTED_EOF();
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
PRInt32 nameSpaceID = kNameSpaceID_None;
nsAutoString attr;
if (mToken.IsSymbol('*')) { // wildcard namespace
nameSpaceID = kNameSpaceID_Unknown;
if (ExpectSymbol(aErrorCode, '|', PR_FALSE)) {
if (! GetToken(aErrorCode, PR_FALSE)) { // premature EOF
REPORT_UNEXPECTED_EOF();
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
if (eCSSToken_Ident == mToken.mType) { // attr name
attr = mToken.mIdent;
}
else {
REPORT_UNEXPECTED_TOKEN(NS_LITERAL_STRING(
"Expected non-empty name for ID selector, but found"));
REPORT_UNEXPECTED_TOKEN(NS_LITERAL_STRING("Expected identifier for attribute name but found"));
UngetToken();
return PR_FALSE;
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
}
else {
REPORT_UNEXPECTED_TOKEN(
NS_LITERAL_STRING("Expected '|' but found"));
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
}
else if (mToken.IsSymbol('|')) { // NO namespace
if (! GetToken(aErrorCode, PR_FALSE)) { // premature EOF
REPORT_UNEXPECTED_EOF();
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
if (eCSSToken_Ident == mToken.mType) { // attr name
attr = mToken.mIdent;
}
else {
REPORT_UNEXPECTED_TOKEN(NS_LITERAL_STRING("Expected identifier for attribute name but found"));
UngetToken();
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
}
else if (eCSSToken_Ident == mToken.mType) { // attr name or namespace
attr = mToken.mIdent; // hang on to it
if (ExpectSymbol(aErrorCode, '|', PR_FALSE)) { // was a namespace
nameSpaceID = kNameSpaceID_Unknown;
if (mNameSpace) {
nsIAtom* prefix;
attr.ToLowerCase(); // always case insensitive, since stays within CSS
prefix = NS_NewAtom(attr);
mNameSpace->FindNameSpaceID(prefix, nameSpaceID);
NS_IF_RELEASE(prefix);
} // else, no delcared namespaces
if (kNameSpaceID_Unknown == nameSpaceID) { // unknown prefix, dump it
REPORT_UNEXPECTED_TOKEN(
NS_LITERAL_STRING("Unknown namespace prefix"));
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
if (! GetToken(aErrorCode, PR_FALSE)) { // premature EOF
REPORT_UNEXPECTED_EOF();
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
if (eCSSToken_Ident == mToken.mType) { // attr name
attr = mToken.mIdent;
}
else {
REPORT_UNEXPECTED_TOKEN(NS_LITERAL_STRING("Expected identifier for attribute name but found"));
UngetToken();
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
}
}
else { // malformed
REPORT_UNEXPECTED_TOKEN(
NS_LITERAL_STRING("Expected attribute name or namespace but found"));
UngetToken();
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
if (! mCaseSensitive) {
attr.ToLowerCase();
}
if (! GetToken(aErrorCode, PR_TRUE)) { // premature EOF
REPORT_UNEXPECTED_EOF();
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
if ((eCSSToken_Symbol == mToken.mType) ||
(eCSSToken_Includes == mToken.mType) ||
(eCSSToken_Dashmatch == mToken.mType) ||
(eCSSToken_Beginsmatch == mToken.mType) ||
(eCSSToken_Endsmatch == mToken.mType) ||
(eCSSToken_Containsmatch == mToken.mType)) {
PRUint8 func;
if (eCSSToken_Includes == mToken.mType) {
func = NS_ATTR_FUNC_INCLUDES;
}
else if (eCSSToken_Dashmatch == mToken.mType) {
func = NS_ATTR_FUNC_DASHMATCH;
}
else if (eCSSToken_Beginsmatch == mToken.mType) {
func = NS_ATTR_FUNC_BEGINSMATCH;
}
else if (eCSSToken_Endsmatch == mToken.mType) {
func = NS_ATTR_FUNC_ENDSMATCH;
}
else if (eCSSToken_Containsmatch == mToken.mType) {
func = NS_ATTR_FUNC_CONTAINSMATCH;
}
else if (']' == mToken.mSymbol) {
aDataMask |= SEL_MASK_ATTRIB;
aSelector.AddAttribute(nameSpaceID, attr);
func = NS_ATTR_FUNC_SET;
}
else if ('=' == mToken.mSymbol) {
func = NS_ATTR_FUNC_EQUALS;
}
else {
REPORT_UNEXPECTED_TOKEN(
NS_LITERAL_STRING("Unexpected token in attribute selector: "));
UngetToken(); // bad function
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
if (NS_ATTR_FUNC_SET != func) { // get value
if (! GetToken(aErrorCode, PR_TRUE)) { // premature EOF
REPORT_UNEXPECTED_EOF();
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
if ((eCSSToken_Ident == mToken.mType) || (eCSSToken_String == mToken.mType)) {
nsAutoString value(mToken.mIdent);
if (! GetToken(aErrorCode, PR_TRUE)) { // premature EOF
REPORT_UNEXPECTED_EOF();
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
if (mToken.IsSymbol(']')) {
aDataMask |= SEL_MASK_ATTRIB;
aSelector.AddAttribute(nameSpaceID, attr, func, value, mCaseSensitive);
}
else {
REPORT_UNEXPECTED_TOKEN(NS_LITERAL_STRING("Expected ']' to terminate attribute selector but found"));
UngetToken();
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
}
else {
REPORT_UNEXPECTED_TOKEN(NS_LITERAL_STRING("Expected identifier or string for value in attribute selector but found"));
UngetToken();
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
}
}
else {
REPORT_UNEXPECTED_TOKEN(
NS_LITERAL_STRING("Unexpected token in attribute selector: "));
UngetToken(); // bad dog, no biscut!
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
aParsingStatus = SELECTOR_PARSING_ENDED_OK;
}
void CSSParserImpl::ParsePseudoSelector(PRInt32& aDataMask,
nsCSSSelector& aSelector,
PRInt32& aParsingStatus,
PRInt32& aErrorCode)
{
nsAutoString buffer;
if (! GetToken(aErrorCode, PR_FALSE)) { // premature eof
REPORT_UNEXPECTED_EOF();
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
if (eCSSToken_Ident != mToken.mType) { // malformed selector
#ifdef INCLUDE_XUL
if (eCSSToken_Function != mToken.mType ||
!IsOutlinerPseudoElement(mToken.mIdent)) {
#endif
REPORT_UNEXPECTED_TOKEN(NS_LITERAL_STRING("Expected identifier for pseudo-class selector but found"));
UngetToken();
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
#ifdef INCLUDE_XUL
}
#endif
}
buffer.Truncate();
buffer.AppendWithConversion(':');
buffer.Append(mToken.mIdent);
buffer.ToLowerCase();
nsIAtom* pseudo = NS_NewAtom(buffer);
if (IsPseudoClass(pseudo)) {
// XXX parse lang pseudo class
aDataMask |= SEL_MASK_PCLASS;
aSelector.AddPseudoClass(pseudo);
NS_RELEASE(pseudo);
}
else {
if (0 == (aDataMask & SEL_MASK_PELEM)) {
aDataMask |= SEL_MASK_PELEM;
aSelector.AddPseudoClass(pseudo); // store it here, it gets pulled later
NS_RELEASE(pseudo);
#ifdef INCLUDE_XUL
if (eCSSToken_Function == mToken.mType &&
IsOutlinerPseudoElement(mToken.mIdent)) {
// We have encountered a pseudoelement of the form
// -moz-outliner-xxxx(a,b,c). We parse (a,b,c) and add each
// item in the list to the pseudoclass list. They will be pulled
// from the list later along with the pseudoelement.
if (!ParseOutlinerPseudoElement(aErrorCode, aSelector))
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
#endif
// ensure selector ends here, must be followed by EOF, space, '{' or ','
if (GetToken(aErrorCode, PR_FALSE)) { // premature eof is ok (here!)
if ((eCSSToken_WhiteSpace == mToken.mType) ||
(mToken.IsSymbol('{') || mToken.IsSymbol(','))) {
UngetToken();
aParsingStatus = SELECTOR_PARSING_STOPPED_OK;
return;
}
REPORT_UNEXPECTED_TOKEN(NS_LITERAL_STRING("Found trailing token after pseudo-element, which must be the last part of a selector: "));
UngetToken();
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
}
else { // multiple pseudo elements, not legal
REPORT_UNEXPECTED_TOKEN(NS_LITERAL_STRING("Extra pseudo-element"));
UngetToken();
NS_RELEASE(pseudo);
aParsingStatus = SELECTOR_PARSING_STOPPED_ERROR;
return;
}
}
aParsingStatus = SELECTOR_PARSING_ENDED_OK;
}
/**
* This is the format for selectors:
* operator? [[namespace |]? element_name]? [ ID | class | attrib | pseudo ]*
*/
PRBool CSSParserImpl::ParseSelector(PRInt32& aErrorCode,
nsCSSSelector& aSelector)
{
PRInt32 dataMask = 0;
PRInt32 parsingStatus = SELECTOR_PARSING_ENDED_OK;
if (! GetToken(aErrorCode, PR_TRUE)) {
REPORT_UNEXPECTED_EOF();
return PR_FALSE;
}
ParseTypeOrUniversalSelector(dataMask, aSelector, parsingStatus, aErrorCode);
if (SELECTOR_PARSING_STOPPED_OK == parsingStatus) {
return PR_TRUE;
}
else if (SELECTOR_PARSING_STOPPED_ERROR == parsingStatus) {
return PR_FALSE;
}
for (;;) {
parsingStatus = SELECTOR_PARSING_ENDED_OK;
if (eCSSToken_ID == mToken.mType) { // #id
ParseIDSelector(dataMask, aSelector, parsingStatus, aErrorCode);
}
else if (mToken.IsSymbol('.')) { // .class
if (! GetToken(aErrorCode, PR_FALSE)) { // get ident
REPORT_UNEXPECTED_EOF();
return PR_FALSE;
}
if (eCSSToken_Ident != mToken.mType) { // malformed selector
REPORT_UNEXPECTED_TOKEN(NS_LITERAL_STRING("Expected identifier for class selector but found"));
UngetToken();
return PR_FALSE;
}
dataMask |= SEL_MASK_CLASS;
aSelector.AddClass(mToken.mIdent); // class always case sensitive
ParseClassSelector(dataMask, aSelector, parsingStatus, aErrorCode);
}
else if (mToken.IsSymbol(':')) { // :pseudo
if (! GetToken(aErrorCode, PR_FALSE)) { // premature eof
REPORT_UNEXPECTED_EOF();
return PR_FALSE;
}
if (eCSSToken_Ident != mToken.mType) { // malformed selector
#ifdef INCLUDE_XUL
if (eCSSToken_Function != mToken.mType ||
!IsOutlinerPseudoElement(mToken.mIdent)) {
#endif
REPORT_UNEXPECTED_TOKEN(NS_LITERAL_STRING("Expected identifier for pseudo-class selector but found"));
UngetToken();
return PR_FALSE;
#ifdef INCLUDE_XUL
}
#endif
}
buffer.Truncate();
buffer.AppendWithConversion(':');
buffer.Append(mToken.mIdent);
buffer.ToLowerCase();
nsIAtom* pseudo = NS_NewAtom(buffer);
if (IsPseudoClass(pseudo)) {
// XXX parse lang pseudo class
dataMask |= SEL_MASK_PCLASS;
aSelector.AddPseudoClass(pseudo);
NS_RELEASE(pseudo);
}
else {
if (0 == (dataMask & SEL_MASK_PELEM)) {
dataMask |= SEL_MASK_PELEM;
aSelector.AddPseudoClass(pseudo); // store it here, it gets pulled later
NS_RELEASE(pseudo);
#ifdef INCLUDE_XUL
if (eCSSToken_Function == mToken.mType &&
IsOutlinerPseudoElement(mToken.mIdent)) {
// We have encountered a pseudoelement of the form
// -moz-outliner-xxxx(a,b,c). We parse (a,b,c) and add each
// item in the list to the pseudoclass list. They will be pulled
// from the list later along with the pseudoelement.
if (!ParseOutlinerPseudoElement(aErrorCode, aSelector))
return PR_FALSE;
}
#endif
// ensure selector ends here, must be followed by EOF, space, '{' or ','
if (GetToken(aErrorCode, PR_FALSE)) { // premature eof is ok (here!)
if ((eCSSToken_WhiteSpace == mToken.mType) ||
(mToken.IsSymbol('{') || mToken.IsSymbol(','))) {
UngetToken();
return PR_TRUE;
}
REPORT_UNEXPECTED_TOKEN(NS_LITERAL_STRING("Found trailing token after pseudo-element, which must be the last part of a selector: "));
UngetToken();
return PR_FALSE;
}
}
else { // multiple pseudo elements, not legal
REPORT_UNEXPECTED_TOKEN(NS_LITERAL_STRING("Extra pseudo-element"));
UngetToken();
NS_RELEASE(pseudo);
return PR_FALSE;
}
}
ParsePseudoSelector(dataMask, aSelector, parsingStatus, aErrorCode);
}
else if (mToken.IsSymbol('[')) { // attribute
if (! GetToken(aErrorCode, PR_TRUE)) { // premature EOF
REPORT_UNEXPECTED_EOF();
return PR_FALSE;
}
PRInt32 nameSpaceID = kNameSpaceID_None;
nsAutoString attr;
if (mToken.IsSymbol('*')) { // wildcard namespace
nameSpaceID = kNameSpaceID_Unknown;
if (ExpectSymbol(aErrorCode, '|', PR_FALSE)) {
if (! GetToken(aErrorCode, PR_FALSE)) { // premature EOF
REPORT_UNEXPECTED_EOF();
return PR_FALSE;
}
if (eCSSToken_Ident == mToken.mType) { // attr name
attr = mToken.mIdent;
}
else {
REPORT_UNEXPECTED_TOKEN(NS_LITERAL_STRING("Expected identifier for attribute name but found"));
UngetToken();
return PR_FALSE;
}
}
else {
REPORT_UNEXPECTED_TOKEN(
NS_LITERAL_STRING("Expected '|' but found"));
return PR_FALSE;
}
}
else if (mToken.IsSymbol('|')) { // NO namespace
if (! GetToken(aErrorCode, PR_FALSE)) { // premature EOF
REPORT_UNEXPECTED_EOF();
return PR_FALSE;
}
if (eCSSToken_Ident == mToken.mType) { // attr name
attr = mToken.mIdent;
}
else {
REPORT_UNEXPECTED_TOKEN(NS_LITERAL_STRING("Expected identifier for attribute name but found"));
UngetToken();
return PR_FALSE;
}
}
else if (eCSSToken_Ident == mToken.mType) { // attr name or namespace
attr = mToken.mIdent; // hang on to it
if (ExpectSymbol(aErrorCode, '|', PR_FALSE)) { // was a namespace
nameSpaceID = kNameSpaceID_Unknown;
if (mNameSpace) {
nsIAtom* prefix;
attr.ToLowerCase(); // always case insensitive, since stays within CSS
prefix = NS_NewAtom(attr);
mNameSpace->FindNameSpaceID(prefix, nameSpaceID);
NS_IF_RELEASE(prefix);
} // else, no delcared namespaces
if (kNameSpaceID_Unknown == nameSpaceID) { // unknown prefix, dump it
REPORT_UNEXPECTED_TOKEN(
NS_LITERAL_STRING("Unknown namespace prefix"));
return PR_FALSE;
}
if (! GetToken(aErrorCode, PR_FALSE)) { // premature EOF
REPORT_UNEXPECTED_EOF();
return PR_FALSE;
}
if (eCSSToken_Ident == mToken.mType) { // attr name
attr = mToken.mIdent;
}
else {
REPORT_UNEXPECTED_TOKEN(NS_LITERAL_STRING("Expected identifier for attribute name but found"));
UngetToken();
return PR_FALSE;
}
}
}
else { // malformed
REPORT_UNEXPECTED_TOKEN(
NS_LITERAL_STRING("Expected attribute name or namespace but found"));
UngetToken();
return PR_FALSE;
}
if (! mCaseSensitive) {
attr.ToLowerCase();
}
if (! GetToken(aErrorCode, PR_TRUE)) { // premature EOF
REPORT_UNEXPECTED_EOF();
return PR_FALSE;
}
if ((eCSSToken_Symbol == mToken.mType) ||
(eCSSToken_Includes == mToken.mType) ||
(eCSSToken_Dashmatch == mToken.mType) ||
(eCSSToken_Beginsmatch == mToken.mType) ||
(eCSSToken_Endsmatch == mToken.mType) ||
(eCSSToken_Containsmatch == mToken.mType)) {
PRUint8 func;
if (eCSSToken_Includes == mToken.mType) {
func = NS_ATTR_FUNC_INCLUDES;
}
else if (eCSSToken_Dashmatch == mToken.mType) {
func = NS_ATTR_FUNC_DASHMATCH;
}
else if (eCSSToken_Beginsmatch == mToken.mType) {
func = NS_ATTR_FUNC_BEGINSMATCH;
}
else if (eCSSToken_Endsmatch == mToken.mType) {
func = NS_ATTR_FUNC_ENDSMATCH;
}
else if (eCSSToken_Containsmatch == mToken.mType) {
func = NS_ATTR_FUNC_CONTAINSMATCH;
}
else if (']' == mToken.mSymbol) {
dataMask |= SEL_MASK_ATTRIB;
aSelector.AddAttribute(nameSpaceID, attr);
func = NS_ATTR_FUNC_SET;
}
else if ('=' == mToken.mSymbol) {
func = NS_ATTR_FUNC_EQUALS;
}
else {
REPORT_UNEXPECTED_TOKEN(
NS_LITERAL_STRING("Unexpected token in attribute selector: "));
UngetToken(); // bad function
return PR_FALSE;
}
if (NS_ATTR_FUNC_SET != func) { // get value
if (! GetToken(aErrorCode, PR_TRUE)) { // premature EOF
REPORT_UNEXPECTED_EOF();
return PR_FALSE;
}
if ((eCSSToken_Ident == mToken.mType) || (eCSSToken_String == mToken.mType)) {
nsAutoString value(mToken.mIdent);
if (! GetToken(aErrorCode, PR_TRUE)) { // premature EOF
REPORT_UNEXPECTED_EOF();
return PR_FALSE;
}
if (mToken.IsSymbol(']')) {
dataMask |= SEL_MASK_ATTRIB;
aSelector.AddAttribute(nameSpaceID, attr, func, value, mCaseSensitive);
}
else {
REPORT_UNEXPECTED_TOKEN(NS_LITERAL_STRING("Expected ']' to terminate attribute selector but found"));
UngetToken();
return PR_FALSE;
}
}
else {
REPORT_UNEXPECTED_TOKEN(NS_LITERAL_STRING("Expected identifier or string for value in attribute selector but found"));
UngetToken();
return PR_FALSE;
}
}
}
else {
REPORT_UNEXPECTED_TOKEN(
NS_LITERAL_STRING("Unexpected token in attribute selector: "));
UngetToken(); // bad dog, no biscut!
return PR_FALSE;
}
ParseAttributeSelector(dataMask, aSelector, parsingStatus, aErrorCode);
}
else { // not a selector token, we're done
break;
}
if (SELECTOR_PARSING_STOPPED_OK == parsingStatus) {
return PR_TRUE;
}
else if (SELECTOR_PARSING_STOPPED_ERROR == parsingStatus) {
return PR_FALSE;
}
if (! GetToken(aErrorCode, PR_FALSE)) { // premature eof is ok (here!)
return PR_TRUE;
}