WebCore-7537.78.1/css/CSSCalculationValue.cpp

403 static ParseState checkDepthAndIndex(int* depth, unsigned index, CSSParserValueList* tokens)
408     if (index >= tokens->size())
415     PassRefPtr<CSSCalcExpressionNode> parseCalc(CSSParserValueList* tokens)
419         bool ok = parseValueExpression(tokens, 0, &index, &result);
420         ASSERT_WITH_SECURITY_IMPLICATION(index <= tokens->size());
421         if (!ok || index != tokens->size())
431     char operatorValue(CSSParserValueList* tokens, unsigned index)
433         if (index >= tokens->size())
435         CSSParserValue* value = tokens->valueAt(index);
442     bool parseValue(CSSParserValueList* tokens, unsigned* index, Value* result)
444         CSSParserValue* parserValue = tokens->valueAt(*index);
459     bool parseValueTerm(CSSParserValueList* tokens, int depth, unsigned* index, Value* result)
461         if (checkDepthAndIndex(&depth, *index, tokens) != OK)
464         if (operatorValue(tokens, *index) == '(') {
466             if (!parseValueExpression(tokens, depth, &currentIndex, result))
469             if (operatorValue(tokens, currentIndex) != ')')
475         return parseValue(tokens, index, result);
478     bool parseValueMultiplicativeExpression(CSSParserValueList* tokens, int depth, unsigned* index, Value* result)
480         if (checkDepthAndIndex(&depth, *index, tokens) != OK)
483         if (!parseValueTerm(tokens, depth, index, result))
486         while (*index < tokens->size() - 1) {
487             char operatorCharacter = operatorValue(tokens, *index);
493             if (!parseValueTerm(tokens, depth, index, &rhs))
501         ASSERT_WITH_SECURITY_IMPLICATION(*index <= tokens->size());
505     bool parseAdditiveValueExpression(CSSParserValueList* tokens, int depth, unsigned* index, Value* result)
507         if (checkDepthAndIndex(&depth, *index, tokens) != OK)
510         if (!parseValueMultiplicativeExpression(tokens, depth, index, result))
513         while (*index < tokens->size() - 1) {
514             char operatorCharacter = operatorValue(tokens, *index);
520             if (!parseValueMultiplicativeExpression(tokens, depth, index, &rhs))
528         ASSERT_WITH_SECURITY_IMPLICATION(*index <= tokens->size());
532     bool parseValueExpression(CSSParserValueList* tokens, int depth, unsigned* index, Value* result)
534         return parseAdditiveValueExpression(tokens, depth, index, result);