build/re2c/parser.h

   1 /* $Id: parser.h 854 2008-03-24 16:41:12Z helly $ */
   2 #ifndef _parser_h
   3 #define _parser_h
   4
   5 #include "scanner.h"
   6 #include "re.h"
   7 #include <iosfwd>
   8
   9 namespace re2c
  10 {
  11
  12 class Symbol
  13 {
  14 public:
  15
  16         RegExp*   re;
  17
  18         static Symbol *find(const SubStr&);
  19         static void ClearTable();
  20
  21         typedef std::map<std::string, Symbol*> SymbolTable;
  22
  23         const Str& GetName() const
  24         {
  25                 return name;
  26         }
  27
  28 protected:
  29
  30         Symbol(const SubStr& str)
  31                 : re(NULL)
  32                 , name(str)
  33         {
  34         }
  35
  36 private:
  37
  38         static SymbolTable symbol_table;
  39
  40         Str     name;
  41
  42 #if PEDANTIC
  43         Symbol(const Symbol& oth)
  44                 : re(oth.re)
  45                 , name(oth.name)
  46         {
  47         }
  48         Symbol& operator = (const Symbol& oth)
  49         {
  50                 new(this) Symbol(oth);
  51                 return *this;
  52         }
  53 #endif
  54 };
  55
  56 extern void parse(Scanner&, std::ostream&, std::ostream*);
  57 extern void parse_cleanup();
  58
  59 } // end namespace re2c
  60
  61 #endif