69 lines
1.5 KiB
C++
69 lines
1.5 KiB
C++
#pragma once
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#ifndef TPARSER_INCLUDED
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#define TPARSER_INCLUDED
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#include <memory>
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#include "tcommon.h"
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#include "tgrammar.h"
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#undef DVAPI
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#undef DVVAR
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#ifdef TNZBASE_EXPORTS
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#define DVAPI DV_EXPORT_API
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#define DVVAR DV_EXPORT_VAR
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#else
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#define DVAPI DV_IMPORT_API
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#define DVVAR DV_IMPORT_VAR
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#endif
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namespace TSyntax {
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struct DVAPI SyntaxToken {
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int m_pos, m_length;
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TokenType m_type;
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};
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class DVAPI Parser {
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class Imp;
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std::unique_ptr<Imp> m_imp;
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public:
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Parser(const Grammar *grammar);
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~Parser();
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//! parse the input string and create the corresponding calculator
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//! (returns 0 if the text contains mistakes)
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Calculator *parse(std::string text);
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//! return true if the last parsed string was correct
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bool isValid() const;
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//! return the last parsed string
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std::string getText() const;
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//! return the last error code (if the last parsed string was correct then
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//! returns "")
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std::string getError() const;
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//! if getError() != "" returns the position of the last parsed token
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//! the pair contains the indices of the first and the last characters of the
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//! token
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std::pair<int, int> getErrorPos() const;
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enum SyntaxStatus { Correct, Incomplete, Error, ExtraIgnored };
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SyntaxStatus checkSyntax(std::vector<SyntaxToken> &tokens, std::string text);
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void getSuggestions(Grammar::Suggestions &suggestions, std::string text);
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std::string getCurrentPatternString(std::string text);
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private:
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// not implemented
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Parser(const Parser &);
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Parser &operator=(const Parser &);
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};
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} // namespace TSyntax
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#endif
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