// font-face-rule: '@font-face' '{' font-description '}'
// font-description: font-descriptor+
internal bool ParseFontFaceRule(RuleAppendFunc aAppendFunc, object aData)
{
if (!ExpectSymbol('{', true)) {
{ if (!mSuppressErrors) mReporter.ReportUnexpected("PEBadFontBlockStart", mToken); };
return false;
}
var rule = new nsCSSFontFaceRule();
for (;;) {
if (!GetToken(true)) {
{ if (!mSuppressErrors) mReporter.ReportUnexpected("PEFontFaceEOF"); };
break;
}
if (mToken.IsSymbol('}')) { // done!
UngetToken();
break;
}
// ignore extra semicolons
if (mToken.IsSymbol(';'))
continue;
if (!ParseFontDescriptor(rule)) {
{ if (!mSuppressErrors) mReporter.ReportUnexpected("PEDeclSkipped"); };
mReporter.OutputError();
if (!SkipDeclaration(true))
break;
}
}
if (!ExpectSymbol('}', true)) {
{ if (!mSuppressErrors) mReporter.ReportUnexpected("PEBadFontBlockEnd", mToken); };
return false;
}
aAppendFunc(rule, aData);
return true;
}
// font-descriptor: font-family-desc
// | font-style-desc
// | font-weight-desc
// | font-stretch-desc
// | font-src-desc
// | unicode-range-desc
//
// All font-*-desc productions follow the pattern
// IDENT ':' value ';'
//
// On entry to this function, mToken is the IDENT.
internal bool ParseFontDescriptor(nsCSSFontFaceRule aRule)
{
if (nsCSSTokenType.Ident != mToken.mType) {
{ if (!mSuppressErrors) mReporter.ReportUnexpected("PEFontDescExpected", mToken); };
return false;
}
string descName = mToken.mIdentStr;
if (!ExpectSymbol(':', true)) {
{ if (!mSuppressErrors) mReporter.ReportUnexpected("PEParseDeclarationNoColon", mToken); };
mReporter.OutputError();
return false;
}
nsCSSFontDesc descID = nsCSSProps.LookupFontDesc(descName);
var value = new nsCSSValue();
if (descID == nsCSSFontDesc.UNKNOWN) {
if (NonMozillaVendorIdentifier(descName)) {
// silently skip other vendors' extensions
SkipDeclaration(true);
return true;
} else {
{ if (!mSuppressErrors) mReporter.ReportUnexpected("PEUnknownFontDesc", descName); };
return false;
}
}
if (!ParseFontDescriptorValue(descID, ref value)) {
{ if (!mSuppressErrors) mReporter.ReportUnexpected("PEValueParsingError", descName); };
return false;
}
if (!ExpectEndProperty())
return false;
aRule.SetDesc(descID, value);
return true;
}