// Copyright 2014 PDFium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com #ifndef XFA_FXFA_FM2JS_CXFA_FMPARSER_H_ #define XFA_FXFA_FM2JS_CXFA_FMPARSER_H_ #include <memory> #include <vector> #include "xfa/fxfa/fm2js/cxfa_fmexpression.h" #include "xfa/fxfa/fm2js/cxfa_fmlexer.h" class CXFA_FMParser { public: explicit CXFA_FMParser(const WideStringView& wsFormcalc); ~CXFA_FMParser(); std::unique_ptr<CXFA_FMFunctionDefinition> Parse(); bool HasError() const; void SetMaxParseDepthForTest(unsigned long max_depth) { m_max_parse_depth = max_depth; } private: bool NextToken(); bool CheckThenNext(XFA_FM_TOKEN op); bool IncrementParseDepthAndCheck(); std::vector<std::unique_ptr<CXFA_FMExpression>> ParseTopExpression(); std::unique_ptr<CXFA_FMExpression> ParseFunction(); std::unique_ptr<CXFA_FMExpression> ParseExpression(); std::unique_ptr<CXFA_FMExpression> ParseVarExpression(); std::unique_ptr<CXFA_FMExpression> ParseExpExpression(); std::unique_ptr<CXFA_FMExpression> ParseBlockExpression(); std::unique_ptr<CXFA_FMExpression> ParseIfExpression(); std::unique_ptr<CXFA_FMExpression> ParseWhileExpression(); std::unique_ptr<CXFA_FMExpression> ParseForExpression(); std::unique_ptr<CXFA_FMExpression> ParseForeachExpression(); std::unique_ptr<CXFA_FMExpression> ParseDoExpression(); std::unique_ptr<CXFA_FMSimpleExpression> ParseParenExpression(); std::unique_ptr<CXFA_FMSimpleExpression> ParseSimpleExpression(); std::unique_ptr<CXFA_FMSimpleExpression> ParseSubassignmentInForExpression(); std::unique_ptr<CXFA_FMSimpleExpression> ParseLogicalOrExpression(); std::unique_ptr<CXFA_FMSimpleExpression> ParseLogicalAndExpression(); std::unique_ptr<CXFA_FMSimpleExpression> ParseEqualityExpression(); std::unique_ptr<CXFA_FMSimpleExpression> ParseRelationalExpression(); std::unique_ptr<CXFA_FMSimpleExpression> ParseAddtiveExpression(); std::unique_ptr<CXFA_FMSimpleExpression> ParseMultiplicativeExpression(); std::unique_ptr<CXFA_FMSimpleExpression> ParseUnaryExpression(); std::unique_ptr<CXFA_FMSimpleExpression> ParsePrimaryExpression(); std::unique_ptr<CXFA_FMSimpleExpression> ParsePostExpression( std::unique_ptr<CXFA_FMSimpleExpression> e); std::unique_ptr<CXFA_FMSimpleExpression> ParseIndexExpression(); std::unique_ptr<CXFA_FMLexer> m_lexer; std::unique_ptr<CXFA_FMToken> m_token; bool m_error; unsigned long m_parse_depth; unsigned long m_max_parse_depth; }; #endif // XFA_FXFA_FM2JS_CXFA_FMPARSER_H_