/**
* Scan an Ident token. This also handles Function and URL tokens,
* both of which begin indistinguishably from an identifier. It can
* produce a Symbol token when an apparent identifier actually led
* into an invalid escape sequence.
*/
bool
nsCSSScanner::ScanIdent(nsCSSToken& aToken)
{
if (MOZ_UNLIKELY(!GatherText(IS_IDCHAR, aToken.mIdent))) {
MOZ_ASSERT(Peek() == '\\',
"unexpected IsIdentStart character that did not begin an ident");
aToken.mSymbol = Peek();
Advance();
return true;
}
if (MOZ_LIKELY(Peek() != '(')) {
aToken.mType = eCSSToken_Ident;
return true;
}
Advance();
aToken.mType = eCSSToken_Function;
if (aToken.mIdent.LowerCaseEqualsLiteral("url")) {
NextURL(aToken);
} else if (aToken.mIdent.LowerCaseEqualsLiteral("var")) {
mSeenVariableReference = true;
}
return true;
}
PRBool
nsCSSScanner::ParseIdent(PRInt32 aChar, nsCSSToken& aToken)
{
nsString& ident = aToken.mIdent;
ident.SetLength(0);
if (!GatherIdent(aChar, ident)) {
return PR_FALSE;
}
nsCSSTokenType tokenType = eCSSToken_Ident;
// look for functions (ie: "ident(")
if (Peek() == PRUnichar('(')) {
Read();
tokenType = eCSSToken_Function;
if (ident.LowerCaseEqualsLiteral("url")) {
NextURL(aToken); // ignore return value, since *we* read something
return PR_TRUE;
}
}
aToken.mType = tokenType;
return PR_TRUE;
}
