| // 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_FMAST> 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>> ParseExpressionList(); |
| std::unique_ptr<CXFA_FMExpression> ParseFunction(); |
| std::unique_ptr<CXFA_FMExpression> ParseExpression(); |
| std::unique_ptr<CXFA_FMExpression> ParseDeclarationExpression(); |
| std::unique_ptr<CXFA_FMExpression> ParseExpExpression(); |
| 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> ParseLogicalOrExpression(); |
| std::unique_ptr<CXFA_FMSimpleExpression> ParseLogicalAndExpression(); |
| std::unique_ptr<CXFA_FMSimpleExpression> ParseEqualityExpression(); |
| std::unique_ptr<CXFA_FMSimpleExpression> ParseRelationalExpression(); |
| std::unique_ptr<CXFA_FMSimpleExpression> ParseAdditiveExpression(); |
| 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<std::vector<std::unique_ptr<CXFA_FMSimpleExpression>>> |
| ParseArgumentList(); |
| std::unique_ptr<CXFA_FMSimpleExpression> ParseIndexExpression(); |
| std::unique_ptr<CXFA_FMSimpleExpression> ParseLiteral(); |
| |
| std::unique_ptr<CXFA_FMLexer> m_lexer; |
| 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_ |