Mercurial > jwe > qt-gui-with-push-parser

annotate parser.h @ 14:1e5a1e15fa56

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clean up header files, more small readline changes
author John W. Eaton <jwe@octave.org>
date Thu, 23 May 2019 18:41:04 -0400
parents d179b0bb85e4
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1 #if ! defined (calc_parse_h)
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2 #define calc_parse_h 1
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4 namespace calc
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5 {
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6 class interpreter;
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8 class parser
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9 {
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10 public:
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12 parser (interpreter&);
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14 parser (const parser&) = delete;
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16 parser& operator = (const parser&) = delete;
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18 ~parser (void);
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20 bool beg_of_stmt (void) const { return m_beg_of_stmt; }
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22 void beg_of_stmt (bool flag) { m_beg_of_stmt = flag; }
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24 int parse_and_execute (const std::string& line);
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26 void emit_error (const char *msg) const;
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28 void emit_result (double value) const;
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30 private:
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32 int lexer (double& token_value);
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34 interpreter& m_interpreter;
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36 void *m_parser_state;
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38 bool m_beg_of_stmt;
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40 // Auxiliary variables for lexing.
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41 size_t m_bufptr = 0;
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42 size_t m_chunk_size = 0;
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43 const char *m_buf;
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44 };
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45 }
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46
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47 #endif