torc::generic::Scanner Class Reference

#include <Scanner.hpp>

List of all members.

Public Member Functions
	Scanner (std::istream *arg_yyin=0, std::ostream *arg_yyout=0)
virtual	~Scanner ()
virtual Parser::token_type	lex (Parser::semantic_type *yylval, Parser::location_type *yylloc)
void	set_debug (bool b)
bool	getIsIdContext () const throw ()
void	setIsIdContext (bool inIsIdContext) throw ()
void	skipThisRule (char *yytext)
bool	getAppendToBuffer () throw ()
void	setAppendToBuffer (bool inAppendToBuffer) throw ()
void	resetBuffer () throw ()
void	addToBuffer (const char *str) throw ()
std::string	getBuffer () throw ()
bool	getAppendToUserDataBuffer () throw ()
void	setAppendToUserDataBuffer (bool inAppendToBuffer) throw ()
void	addToUserDataBuffer (const char *str) throw ()
void	resetUserDataBuffer () throw ()
std::string	getUserDataBuffer () throw ()
Private Attributes
bool	mIsIdContext
bool	mAppendToBuffer
bool	mAppendToUserDataBuffer
std::string	mBuffer
std::string	mUserDataBuffer
bool	mIsIdAlreadyAdded

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Detailed Description

Scanner is a derived class to add some extra function to the scanner class. Flex itself creates a class named FlexLexer, which is renamed using macros to EdifFlexLexer. However we change the context of the generated yylex() function to be contained within the Scanner class. This is required because the yylex() defined in EdifFlexLexer has no parameters.

Definition at line 55 of file Scanner.hpp.

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Constructor & Destructor Documentation

torc::generic::Scanner::Scanner	(	std::istream *	arg_yyin = 0,
		std::ostream *	arg_yyout = 0
	)

Create a new scanner object. The streams arg_yyin and arg_yyout default to cin and cout, but that assignment is only made when initializing in yylex().

Definition at line 7041 of file Scanner.cc.

torc::generic::Scanner::~Scanner

(

)

[virtual]

Required for virtual functions

Definition at line 7053 of file Scanner.cc.

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Member Function Documentation

virtual Parser::token_type torc::generic::Scanner::lex	(	Parser::semantic_type *	yylval,
		Parser::location_type *	yylloc
	)			[virtual]

This is the main lexing function. It is generated by flex according to the macro declaration YY_DECL above. The generated bison parser then calls this virtual function to fetch new tokens.

void torc::generic::Scanner::set_debug

(

bool

b

)

Enable debug output (via arg_yyout) if compiled into the scanner.

Definition at line 7126 of file Scanner.cc.

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The documentation for this class was generated from the following files:

• torc/generic/parser/Scanner.hpp
• torc/generic/parser/Scanner.cc