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Diffstat (limited to 'TAO/orbsvcs/orbsvcs/ETCL/ETCL_Interpreter.h')
-rw-r--r-- | TAO/orbsvcs/orbsvcs/ETCL/ETCL_Interpreter.h | 110 |
1 files changed, 0 insertions, 110 deletions
diff --git a/TAO/orbsvcs/orbsvcs/ETCL/ETCL_Interpreter.h b/TAO/orbsvcs/orbsvcs/ETCL/ETCL_Interpreter.h deleted file mode 100644 index 81210143c38..00000000000 --- a/TAO/orbsvcs/orbsvcs/ETCL/ETCL_Interpreter.h +++ /dev/null @@ -1,110 +0,0 @@ -// -*- C++ -*- - -//============================================================================= -/** - * @file ETCL_Interpreter.h - * - * $Id$ - * - * @author Jeff Parsons <parsons@cs.wustl.edu> based on previous work by - * @author Seth Widoff <sbw1@cs.wustl.edu> - */ -//============================================================================= - - -#ifndef TAO_ETCL_INTERPRETER_H -#define TAO_ETCL_INTERPRETER_H -#include /**/ "ace/pre.h" - -#include "orbsvcs/ETCL/etcl_export.h" - -#if !defined (ACE_LACKS_PRAGMA_ONCE) -# pragma once -#endif /* ACE_LACKS_PRAGMA_ONCE */ - -#include "tao/orbconf.h" -#include "ace/Thread_Mutex.h" - -TAO_BEGIN_VERSIONED_NAMESPACE_DECL - -class TAO_ETCL_Constraint; - -/** - * @class TAO_ETCL_Interpreter - * - * @brief TAO_ETCL_Interpreter is the superclass for all ETCL interpreters. - * Its build tree method invokes the yacc parser to parse a constraint - * or preference string. - */ -class TAO_ETCL_Export TAO_ETCL_Interpreter -{ -protected: - // = Initialization and termination methods. - /// Constructor. - TAO_ETCL_Interpreter (void); - - /// Destructor. - ~TAO_ETCL_Interpreter (void); - - /// Using the Yacc generated parser, construct an expression tree - /// representing <constraints> from the tokens returned by it. - int build_tree (const char* constraints); - - static int is_empty_string (const char* str); - - /// The root of the expression tree, not equal to null if build_tree - /// successfully builds a tree from the constraints. - TAO_ETCL_Constraint* root_; -private: - /// This mutex protects the <build_tree> method from reentrance. - static TAO_SYNCH_MUTEX parserMutex__; -}; - - -// Functions we need for parsing. -extern int yyparse (void); -extern void yyrestart (FILE*); -extern int yylex (void); - -// Have yylex read from the constraint string, not from stdin. -#undef YY_INPUT -#define YY_INPUT(b, r, ms) (r = TAO_Lex_String_Input::copy_into(b, ms)) - -/** - * @class TAO_Lex_String_Input - * - * @brief Have Lex read from a string and not from stdin. Essentially, - * the interpreter needs to call yylex() until EOF, and call - * TAO_Lex_String_Input::reset() with the new string, prior to - * calling yyparse. - */ -class TAO_Lex_String_Input -{ -public: - /// Reset the lex input. - static void reset (char* input_string); - - /// Method lex will call to read from the input string. - static int copy_into (char* buf, int max_size); - -private: - - /// Pointers to keep track of the input string. - static char* string_; - static char* current_; - static char* end_; -}; - -/// The union used by lex and bison to build the Abstract Syntax Tree. -typedef union -{ - TAO_ETCL_Constraint* constraint; -} YYSTYPE; - -extern YYSTYPE yylval; -extern YYSTYPE yyval; - -TAO_END_VERSIONED_NAMESPACE_DECL - -#include /**/ "ace/post.h" -#endif /* TAO_ETCL_INTERPRETER_H */ |